EEVblog 1610 - Deye 5kW Hybrid Solar Inverter
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- Опубліковано 13 кві 2024
- A look at the Deye 5kW Hybrid Solar Inverter and attempted teardown.
SUN-5K-SG04LP1-AU
Forum: www.eevblog.com/forum/blog/ee...
Joule Power: joulepower.com.au/
Teardown video: • Repair Deye Solar inve...
Manual: www.sunovagroup.com.au/wp-con...
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#ElectronicsCreators #Deye #solar - Наука та технологія
Round heatsink block looks like it has all the high current inductors integrated into it, separate to allow for convection cooling. round shape says they potted them all in there, probably in a flexible thermal compound. Those mosfets likely are some special order, a regular one with an overmoulded, or a stick on plastic top, that they use to have good thermal transfer, but also allow easy mounting with a single screw through both board and mosfet. Either done by them, or they got some fab to make the new moulds to use standard off the shelf devices into a special package.
The mosfets (probably igbt) have normal cases, there is a plastic cover on top of them for mounting and isolation.
Very common to have fan inside of high ip class devicess to prevent hot spots and therma difference in power components, sometimes there is two heatsinks back to back to improve internal air cooling. My experience is that dirty dust kills those high power boards, not heat.
I discovered that with a battery charger, it's a completely sealed unit and all of a sudden I could hear a sound coming from it. There was a fan inside even though it was sealed. I guess it would help move air inside internally and equalize the temp more, and it would slowly dissipate through the case.
Thank you very much For sharing our deye inverter video We are very impressed with your videos You inspire us
I've had one of these inverters (at least the South African version of this 5kW unit) for the past year and it's great. Solid quality and fantastic bang for buck. A tiny bit slow to switch if grid goes down (perhaps a few ms more than ATX spec), which happens a lot here, so I've found one or two sensitive appliances just just doesn't have enough capacitance to cope. I've just added a normal UPS in front of them.
Also running completely passively, so fan may just be if you're running at peak power for extended periods.
Yeah, the teardown was a flop, but I figure it's main channel worthy anyway as it preps for more upcoming solar videos.
Credit for messing up the void warranty sticker right away.
I used to teardown everything the day I got it home... Not so much these days though...
@@MacGuffin1 Soon I will receive a frame work laptop. No need to tear it apart as I opted for the dyi assembly.
Some things just get messy.
@@EEVblogDave, can you design and explain a battery equiliser?
Deye inverters are widely used in South Africa. I've had a 8kW version for 3 1/2 years and it has worked perfectly and has a lot of configuration options.
That "generator" input could be useful for connecting to your EV with V2L for extra emergency backup capacity too
Yep, possible.
Time to upgrade the car too lol. 😂
Right, by the way it needs to be above half a kilowatt for the "generator" to be useful.
I've had the 12kW 3-phase Deye running here for 18 months, the first winter just as a UPS system for my whole house.
It runs absolutely smoothly and the switchover to battery operation in the event of a power failure is so fast (7ms measured) that nobody notices.
The GEN connection can easily take the rated power from microinverters and feed it through the device to the grid, which means that the energy from the microinverter can also be charged into the battery, which is useful in bad weather when the connected PV modules produce less power.
In addition to the Victron devices, the Deye can also modulate the grid frequency of its island during a blackout to throttle connected dumb grid-tied inverters.
It's a real shame to have bought such a 5 kW toy. This Deye is also available in single phase up to 16 kW and would probably work as a UPS system for your whole house.
The real deal "Don't turn it on - take it apart!" spirit! Good enough for Australia. I absolutely love the functionality and build quality here, definitely a nicely engineered unit. If only it was serviceable... Not being able to take off the enclosure is my friggin' pet peeve.
I Love Deye Inverter (I have the 3 phase sun-8k-sg04lp3-eu myself )
The three phase one can be disassembled more easily.
The inverter also comes with current sensing coils for Grid side
so you dont even need a smart meter when the inverter is near the grid feed!
They are one of the most advanced out there and the support from Deye is also not bad.
When it comes to maximum Power per String it is very important not to go over the the MPPT Voltage Limit and maximum Current
If you have under -1°Celcius in Winter you can add +1V for each Panel.
Mine is on the opposite side of the house to the meter box, so that's annoying to get the clamp all the way over there.
@@EEVblog Then I Would use the CHINT Smartmeter as that would be to much Voltage drop
@@EEVblog You can use a smartmeter with a two wire connection or extend the CT-Clamp connection by 300m (been done in Germany)
These inverters are insanely popular in South Africa.
I want to get one... Eskom se p...rices are going up again 🤣
Very cool!
I own one for ± 3 years. A beast! Running it on max oversizing.
Very cool. For those that don't know, some people primarily want backup power in case the grid goes down, but that isn't hooked up to the grid, so it will likely just sit there 99% of the time. So its very expensive for little use for most people. Some people want a lower electric bill, so they feed power to the grid (after they make a deal with the power company), but the grid might not pay enough for extra electricity to cover the initial cost and maintainance of the system. Plus everything shuts down when the grid goes down, so you are without power even if it is sunny when you just have a grid tied system when the grid goes down. Hybrid inverters are the simplest solution to let people contribute to the grid, and then to disconnect from the grid in order to use the solar panels and batteries to power the house when the grid goes down. It all boils down to how much you are trying to save money for electricity versus how much power you want available when the grid goes down.
Some of the newer inverters can do daytime backup without batteries, most notably SMA and MPP. If the grid is mostly reliable in your area, those would be a very economical choice.
Nice to see you here. You have one of the BEST Electronics channels, congrats.
hope to see more
Very solid build! Well once its electronics goes up in smoke the case could still make a pretty bird watchers safe......
fun fact about the warranty sticker Dave as in the US those are illegal under the magnuson-moss warranty act that s why in some products ya dont really see a seal anymore
maine has several other protections for this so since the manufacturers can barely read themselves just link them maine regulations and you're guaranteed to always get returns. They force warranties of X years on specific products regardless of what the manufacturer warranties it for
I honestly worry about the future and how energy demands will be met... 5kW is massive but it's really nothing if you expect that future homes need heating/cooling and car charging all from electric. Both the batteries, the PV, and the inverters all need to get 10x cheaper and better for there to be much hope in powering future homes, I feel. My previous apartment had electric hot water (for shower etc), with gas-powered heating. We were using 10-15kWh per day in a home of 3 people. If the entire heating would be through HVAC, it'd easily be 30-40kWh per day. For that to be with energy storage, you'd be looking at a 50kWh battery lol. And that's just a moderately sized apartment...
Hey, what BEV do you have?? Love to see a V2H setup via Gen input and "grid" inpots if offgrid mode is used?...
The transistor clamps are separate to the devices, if you had a close up it would be more obvious but they are a clamping bridge over moulded with an insulating encapsulation. The devices are standard TO-247's.
You will find it in other inverter designs as well. Seems to be somewhat of a defacto standard of sorts for Chinese inverter designs (or maybe there's one particularly prolific designer that keeps using them?). The clamp isn't some part that appears in a catalogue though.
Is there any description about the technique used at .17:48 ? I mean those smd metal bars, some datasheet maybe?
Would you consider a video with more detail of how these units work? I have the 5kW Sunsync branded version in South Africa, fantastic kit. They can "push back" / supply power onto the grid line (and the generator / aux line). They use a CT coil on the Grid input into the house (not sure if you are allowed to use them in this configuration in Australia) to measure (and thus control) the power output to ensure that you don't feed back onto the grid itself. Thanks for the great videos.
I have an inverter that has the generator input. It's the Schneider XW+ 6848. Similar setup, though it's not really designed to take the solar panels directly. I use Midnite Solar Classic 250s as my MPPT controllers.
The max. DC input was updated to 7.5kw now.
Aslo you can connect additional AC-couples inverter or a mincroinverter system with total peak power output of 5 kW or less even if you already have 5kWp solar connected via DC. It will allow to feed 5kW to your loads and 5kW to the grid at the same time. Or you can export power from AC-couples side and use DC side to charge the batteries. And full 10kW of solar will be available off-grid.
About to install the 12kw 3 phase unit. Good to see the internals. Was wondering about the build quality but it all looks good. Have to agree about serviceability though. Jeez, I thought when I worked on IBM mainframes it was a bit convoluted but that's a complex teardown for a small box
Nichikon caps? How can you tell them apart from the fake ones out in the field?
well if it does fail without a warranty at least we'll have one hell of a teardown and repair video
I bought the 6k, kinda regretting i didn't buy even bigger. I got the house connected via the LOAD port and a single string. The GEN port can do automatically switched load too.
I think the victron multiplus 2 is close in features and price? But does not have MPPT
Could you do a teardown of Fluke 301 clamp meter series?
Have you seen the luxpower inverters? They look pretty impressive..
@2:30 not too sure about that how are the micro inverters going to kick over without a signal to sync to ? normally you put them onto the output side with 0 export enabled and a bi directional meter to tell them what loads they can provide for
I'm searching but can't find the EEVblog video where Dave shows that the growth of electric cars sales will not cause a colapse in the production and distribuition of electric energy. Any chance someone knowing what video is this? Thanks!
Victron Multiplus II can also handle grid tied inverters and control there power by changing "grid" frequency so they can be converted to off grid.
use ipa when trying to remove the warranty sticker
Victron Quattro does also come with a gen input - and also tons of possible configurations…
Also like 3-4 times the price.
VVVF drives for elevators are the same. All access from the front. And have to remove boards to reach the high power stuff.
Annoying!
DEYE has many 'rebrands' like SolArk and SunSynk. I would like you to show us all parameters. Even the installers parameters.
SolArk designed these inverters and Deye manufacturer them. The agreement between the companies is that Deye can sell the product everywhere but the US and Solark sells in the US.
This inverter can't pass trough more than 5kW? It will be optimal connect microinverters on gen side, it will charge battery in winter time, when pannels not make full power.
6:35 It's pronounced Deye
Lol
Deye think?
We Aussies will say D eye, be thankful we are not calling it a dick eye.
Victron also supports frequency shifting on the main output so you can couple most grid tie.
Yes, Harold Halewijn explained this in his videos. Enphase seems to be difficult though, it doesn’t seem to have frequency drooping implemented very well.
Deye does, too. The obvious downside is anything that depends on proper AC frequency (such as electric clocks) won't operate properly.
Did you test it before you tried to tear it down?
You have no problem connecting more solar wattage to the inverter as long as you are withing the voltage limit. Since panels never produce 100% of the wattage you can put 10-15% more
USD800-900 seems really cheap! What was the quiescent power consumption? does it leak power?
Will it output power on the generator input? If not, then micro inverters aren't going to power on due to their anti-islanding function.
If it will output power, then is it meant for synchronization?
Not entirely sure yet, but it's specifically marketed as having this feature.
If set for AC coupling, it will energize the generator port so regular GTIs can sync. IIRC it can also be set so the generator port is always live when grid is present. I know the Sol-Ark (higher spec 120V/240V Ningbo Deye inverters for the American/Canadian market) can do that.
@@randacnam7321Some higher end generators like Honda also support syncing up to a microgrid.
On the 3-phase models you can add a microinverter per phase if you want. You can also add microinverters to the load side and the inverter will charge the battery with any leftover power
It's a configurable set of terminals. In the default generator mode it is a pure input. If configured for grid-tie input it will output voltage normally but switch off when the batteries are fully charged and no grid is present. It can also act as a lower priority secondary output that switches off when battery SoC gets low.
Yhea! Nichicon for the win.
Rubycon better 😊
Deye inverter has been very popular here in the Philippines for many years. Mine have been running for almost a year now without problem. Yours is a smaller form factor and heatsink is much thinner than than my 5kw deye hybrid. Perhaps its a new (or country specific) version.
Deye is a very trustworthy company. They have been caught not installing relays to disconnect the solar system in case of a power failure. These relays are required in Germany.
Link? Sounds like a probable local dealer thing that a Deye thing maybe? Every country has their own unique requirements.
@@EEVblog The story is "formally true" ... but it was less about DEYE being unreliable than Germans being neurotics. ;) (it was about interpretation of a part of the electrical code). Practical relevance was zero - but the German solar scene obsessed about it for months. ;)
PS: You can not post links to the comments - or they will be censored. But you can google for it: relaygate deye.
nope! not a local dealer thing. Was a quite big thing over here in the solar community and got government attention too. Even the Deye stocks dropped when it came to attention. But Deye wasn’t the only company. there were others too. The community called it „Relaisgate“…
@@EEVblog It is "formally true" (questions regarding interpretation of the electrical code). It was more about Germans being neurotics than anything else ... there was no real danger, nobody got hurt - but the German solar scene obsessed about if for month. ;)
@@Knightliner69 And in reality: Nothing happened and nobody got hurt ... or could have got hurt under realistic circumstances. ;)
Deye is pronounced similar to "Duh Yuh" with the e sounding sorta like the i in inverter. The bigger versions of these are a lot easier to open up as all of the screws are on the front cover.
Thumb-up anyway for properly calling that port a D-9, rather than a DB-9 or DE-9. Technical correctness separates us from the animals. 😉👍
Good choice, I was going to go with this for my ESS battery system, but I went with Victron instead. Partially because it's smaller/lighter, but also I prefer transformer based inverters as you don't get DC coming out of it which causes blinding of RCD's.
Also I didn't like SunSynk's (rebadged Deye) warranty terms. You've got to get it installed by an electrician and send them pictures of the install and stuff or you have 0 warranty, where as with Victron they don't require any of that. Glad you picked up on the vendor lock in on batteries though, that's another gotcha for young players.
The battery side on that inverter is 48V and almost certainly going to be transformer isolated. The ones that take 400V class batteries generally would be transformerless and are cheaper.
@@NiHaoMike64 They're not transformer isolated, the teardown Dave talks about shows that.
Guess it would be more correct to say low frequency vs high frequency inverter. LF needs a huge toroid and HF can use smaller transformers, but the LF ones do all the mains frequency inverting at the low voltage stage, so any DC content is on the secondary whereas with HF, the switching is done on the output of the transformer, meaning DC gets into the mains.
You chose the better brand mate. Victron is the Toyota of inverters. SunSynk/Deye is the Mahindra...
@@sarahjrandomnumbersThe low voltage DC has to be isolated from the mains, otherwise it would still be classified as a high voltage circuit and most low voltage devices would not be allowed to be connected.
The 400V DC circuits (PV and high voltage battery) would rarely be isolated as that would increase cost while the circuit would remain classified as a high voltage circuit regardless.
@@NiHaoMike64 I didn't say the DC bus was connected to the mains.
okay , i see the mosfet names (brands) not from elite company. do agree with me?
Are Void Stickers legal in your Place?
In South Africa, the market is saturated with this product, to the extent that local government has endorsed this brand for solar installations. I own the 8kW Sunsyk version, which is essentially a rebadged model with advancements in the firmware and mobile app.
Key observations.
Inside the cylindrical heat sink, three sendust cores are stacked per trio, serving the high-voltage DC to DC boost stage, boosting approximately 400V. The system includes several groups of switches that facilitate multiphase conversion. A TMS320 DSP orchestrates the process, supported by an array of IGBTs (NGTB40N120FL3W) sitting in a plastic mold with boost blocking diodes. Additionally, there are two independent trackers for PV1 and PV2, each capable of handling up to 425VDC each.
I love this product pretty stable and has a mobile app to tweak settings and observe real-time solar production ect.
This highlights how hybrid inverters' advancements have become widely recognized, largely due to research and development efforts and manufacturing in China.
Thumbs up for the price. Thumbs down for serviceability.
1:28 Your 3.33kWp per string would be fine. That'll be the panels' STC specs, rather than the NMOT specs, so you'll have a bunch of losses before you get to the inverter's MC4 connectors. Plus any age-derating on your panels. So, providing you're not planning to chill your panels on peak solar days, you should be golden. And 6.66kWp for the two strings on a 5kW rated inverter is spot on the 4:3 max DC-provisioning ratio for Australian STC compliance.
I guess the pipes are calling for old Sunny Boy!
Interestingly, most of these inverters including my Solis can handle lead-acid batteries as well as Lithium. Lithium Iron Phosphate is the way to go though.
A lot of big brands can't (Enphase, Fronius), they lock you into their battery solution. But yes, I'm getting lithium iron phosphate
@@EEVblog I thought that’s because they have high volt batteries but there are already more diy solutions to hook up several different batteries as the protocol they use isn’t actually that much of a secret.
Does it have a common neutral?
You can actually datalog with a raspberry pi and software called solar assistant i have the sunsynk version same thing just different firmware
Wonder what the wasted power efficiency of this one vs your 12 year old one
when will you put up install video
I live in the states and our annoying center tapped 120v+120v abomination makes inverter installs a real pain
Those are single transistors it's not dual package, there is just insert to between the board
Well at least you probably didn't break it.
Deye Inverter and the German people go on panic mode
I don't think those mosfets are a special package, there's a spacer under each pair to support it against the heatsink.
I just got a big 19.2kwh home battery but I would not have considered this inverter - low voltage batteries. Sure you can plug any kind of battery in to it but for higher power applications I'd much prefer HV batteries. My particular battery peaks at 438 volts and the 10kw hybrid inverter can go up to 560 volts and both charging and discharging can be done at the 10kw limit from solar or grid. It's also interesting how thin the battery wires are yet they don't heat up with that much power..
Btw the AC coupled bit means it can already use your Enphase inverters without rewriting them. If it's CT is after the Enphase and it wants to charge the battery it will pull from the grid circuit to ensure zero import/export.
IT doesn't matter if you go over power solar inverter. My inverter is 6KW and PV 6500W. My panels are 14x 585W, two stings of 7 Panels in parallel. PV goes up to 8190 Watts. Actual PV power is 73% approx of advertised power.
Yeah, a mistake he shouln't have made.
Just ensure the peak voltage is within spec. Even in Aus. it’s unlikely a string of panels will regularly reach 100% of rated output.
@@MarkGovier Yes, have a look at the datasheet
nastechsolar.com/content/SOLAR%20PANELS/LONGI/Datasheet%20LONGi%20Hi-MO%20X6%20565-585%20Explorer.pdf
In the datasheet of solar panel there are two conditions STC (Test condition in lab at 1000W/m2 irradiance) Where are NOCT (Nominal Operating Cell Temperature) at 800W/m2 at 20 degree C. All the values on the backside sticker is at STC which are the Lab numbers are sometime possible in real condition when clouds are really bright and temperature is cool. Else consider NOCT + Temperature Coefficient of Pmax. Also consider the open circuit voltage at STC because when the condition is just right and batteries are full and load is very minimal or no load, panels will go to the Open circuit voltage at STC and that is the worst case on the max voltage side.
What's the reason you're going with a low-voltage (48V) battery system instead of a high-voltage one?
Makes sense for 5kW and less IMO
2:20 Diesel input??!! HOW DARE YOU!
Deye and Sunsynk are AFAIK brands for GlobalTech China Ltd. and just tweak the recipe for their target markets. I'm in the UK with a Sunsynk 5kW - same as this one just the on/off switch is underneath instead of on the side. It's in its 3rd year of operation and performing superbly. If they can put up with sandy, hot and likely humid African conditions then they'd have to be built pretty well. I guess if you need to dismantle these for repair then it's a pretty major overhaul anyway, like replacing all the capacitors, etc. Mine is mounted indoors in an unheated space because batteries sit below it and are not waterproof. The space beneath the heatsink is perfect for 3x 90mm PC fans which keep the operating temperature very cool and I highly recommend in this situation. Very configurable via MODBUS and my only complaint is that there is no way to directly control the internal GRID relay; I like to operate off-grid in the summer with the GRID disconnected and have to use a separate external relay for that. This avoids any energy bleed into (or from) the grid but allows my separate control system to turn it back on if batteries get too low.
I can also confirm that the left-hand side is for the DC conversion electronics which works the hardest as it deals with high currents through the batteries. The right side runs at a lower temperature and probably just does the a.c. stuff.
I know ive watched too much vintage computer stuff when I thought "hard drive!" when I saw the thumbnail lmfao
The Heat sync is spider city
how much is the 6kw version?
Maybe cover EMI interference on next review.
Please do inverters that are capable of being run from 400v ev batteries
Try using hair dryer to remove seal
Victron can take inverter input
Now if there is a 3-phase variant this could be interesting. (yes i live in the civilized world where 3-phase is standard 🙂)
There are 3-phase versions actually. 5kw to 12kw @ 48V. 18kw to 50kw for high voltage batteries.
I believe you can connect three single-phase units to get three phase power. The communications cable is used to maintain proper phasing.
I have one of those (3-phase 8kW) and like it. The only thing that annoys me is that it seems to eat up at around 100W constantly for its own purposes ( which means for me 2,4kWh per day losses). The only method I know to make it use less power is to configure it not to have battery installed :/ . @EEVblog maybe you can measure it in one of the upcoming videos.
@@Piotr_P_M Thank you for info!
And yes, it´s annoying when the inverter consumes power when not loaded.
But i kind of expected that, being an 8kW inverter, so it´s less than 2%.
Do you have the model name and number of your unit so i can investigate it further?
@@eDoc2020 you can, but a single box three phase unit is smaller and cheaper.
How is the EMI rubbish of this rig ?
Is there anybody who know how the Luxpower compare to the Deye?
Pretty nice unit especially for straight from China. Too bad they don't make these things more serviceable though, would be cool if they built it more like an electrical cabinet, and the front door just swings open and all the components are right there.
This is the exact same as a SunSync hybrid inverter
If you guys want to see other teardowns (e.g. of the 3 phase devices), there is an austrian youtuber that did them:
* www.youtube.com/watch?v=ThXGOTojy (1st part of a 3phase 12 kW Deye hybrid inverter)
* ua-cam.com/video/66qRvR51KTo/v-deo.html (2nd part of the same, with insights into how much Amp you can put into the generator port)
* ua-cam.com/video/BPcn59wrjPs/v-deo.html (visit at a german distributor / repair shop for Deye, e.g. at 2:12 you can see lots of single PCBs)
All of these videos are in (austrian) german, but you can turn on UA-cam's subtitle which do an ok job translating it to english.
Hey Dave. I appreciate the tear down but I would worry about installing something on my home that I publicly disassembled and tampered with. Do you worry that your insurance company might take issue with this in the event of a problem? Again, thank you for the content! I just worry too much. In the states I could see them using this to deny a claim.
Good point: The local fire brigade might not see its switch because it is on its side and refuse to fight a possible house fire. Later the insurance might also question to why it was not the usual highly visible and well marked switch with a clear shut down procedure. I had a car insurance claim denied because our son had driven a car registered in my name and it got damaged on a parking lot in his absence. Remember Airfrance lost a Concorde that drove into a dodgy repair part of a Continental plane. It looked like an open and shut case against Concorde but in the end they lost!
@@LawpickingLocksmith Local codes most likely require external high-visibility labels.
Also nice username.
PV disconnect is for servicing rather than emergency disconnect as PV panels will still be live. Ideal is per-panel shutdown e.g Tigo
Taobao has the 5kw LP1 for 900 USD and LP3 for 1,730 USD
Why the massive difference in price?
How much Fronius ones do you have down there? They always say it’s exported to Australia 🇦🇺 from Austria 🇦🇹
Very expensive here, and only compatible with BYD batteries.
Fronius Hardware is really reliable but their Software is total garbage.
Also they lag behind in R&D.
You need an extra box($$$$) for emergency power and if you want to heat water with PV Power an Ohmpilot($$$$)
The Deye has all that combined!
Instead of the microinverters you can connect a smart Load(Water heater) to the GEN port!
@@animarkzero From a business point of view it’s quite good.
For an End customer Point of view only for those who play around with stuff it’s bad.
And if you already thinker then the protocol is something they didn’t make much fuss about as it’s one that others are also using like Kostal.
Btw. the entire dataset can be loaded on a Rpi and displayed as they have a open rest api on the inverter which you can also easily get.
And i dunno there hybrid inverter features a extra plug with i think 14A that doesn’t require any extra box i guess you are talking about the Symo as in the one that wasn’t even meant to be used for backup.
@@animarkzero
What new exciting R&D do others have?
Support for more batteries?
You can already control up to 4 devices (yes it needs external Relays but they are Cheap). And you could still use the Web API to have smart loads if really needed then taking the info from the inverter.
It’s also quite feasible to use the DC directly but haven’t looked yet as the Voltage is a bit scary..
@@platin2148
What you are talking about is messing with progamming and electronic development.You can do that with any inverter.
For laymen that would be quite a challenge.
The interface from Fronius is very badly programmed and the fact that you need several apps(solar.start,solar.web, solar.sos.....)
Is quite annoying.
Our cheap microwave oven came with an inverter. Can you believe it? We don't even have solar panels.
Care to elaborate?
@@noonespecial9131 I don't exactly know the details, but it might not be the same inverter. New microwaves are advertised that they have inverter technology, whatever that is.
It probably does AC -> DC -> AC conversion inside to run the HV transformer at much higher frequencies. That should make it more efficient and let them use a much smaller transformer than the traditional massive brick of a transformer. Probably allows for actual control of the output power as well.
So the inverter bit is the DC -> AC stage.
@@fellenXD It's not for efficiency. All the iron and copper in a low-frequency transformer costs money than an IGBT.
@@gabest4 Inverter technology in microwave oven allows to actually regulate the power rather than the usual crappy on/off modulation to get lower than max output. I wouldn't buy a microwave oven without but they're rather pricey because they're more complex and it's technology patented in Japan (Panasonic I think? Might have been Sharp, though).
Deye pronunciation: "Do-ya?" ua-cam.com/video/sCRniarlYqc/v-deo.html
Tangential comment here but does anyone know who I can send a Lennox HVAC control unit to for repair? Lizards fried on the board. Melbourne. Ta.
scoring cheap lithiu, home packs 48v
hybrid means can charge without grid, usua;;y
They need to start making "everything " serviceable! They make everything disposable which is only adding to Ewaste. They need to make it a worldwide law. There is soooo many pieces of equipment with minor issues that cannot be fixed because of accessibility. I know it would cost more, but it would be better in the long run. Schematics should be available for everything also. Everything has to be a big secret. I could go on and on about this. It really P's me off sometimes.
I'll be back to watch the rest of the video but I'll do my part for "engagement" now.
That's a Sol-Ark clone if I've ever seen one. Same display, same switches/buttons, same menu layout, substantially similar guts... the list goes on.
Other way around. Sol-Ark inverters are made by Deye.
@@eDoc2020 Thanks!
Sunsynk look similarly
@EEVblog They no longer use Japanese Caps in these - current production builds are built with Aishi (which aren't bad) and most of the components internally are now Chinese supply chain (mosfets, relays, etc). Suspect the ones intended for video reviewers and teardowns had the nicer components in them vs production units.
"Aishi" sounds like (or reads like?) Japanese to me.
No one actually knows that the sticker with 3250W per string means. If you don't exceed Voc and Isc you can put as many panels on one string as you want and this inverter will just work.
My screen sucks. Need a magnifying glass to read it.
The real reason you bought it is the name, if you squint at it Deye looks like Dave