hello, thank you sir, I would like to ask you : Why you didn't calculate the load resistance in standard test conditons? you calculated R0 just in worst conditions
sir, Please explain that R0=2.5XRmp where the 2.5 is came ? and why did you apply the R0 value (worst condition) in the standard condition? please explain sir
Thanks a lot for your explanation But I have a question concerning the load resistance Ro=2.5*Rmpp, why you have chosen 2.5 exactly? from where have you got this formula?
Thank you very much @9.50 ..Is there any PSIM simulation available to implement the control using traditional control blocks without using c block or mppt algorithms?
Its very easy. 50 W/m2 is equal to 0.05 times 1000 W/m2. Therefore, array power at 50 W/m2 will also be 0.05 times array power at 1000 W/m2. As irradiance change has little effect on array's voltage. Therefore, Vmp at 50 W/m2 will not be less than 0.9 times Vmp at 1000 W/m2.
There is no such video present on my channel, because designing PI controller for photovoltaic system is very difficult and usually done through hit and trial. Although you can search on UA-cam for such video, maybe you can find something.
Dear Ahsan Mehmood...I appreciate you explanation and presentation is very good. In this video please follow the step no 7 ..I think it is wrong ..it will be Ri= Ro(1-Dmp)^2. Please check and acknowledge. So accordingly the design parameters would change...Please Reply and Sorry for such a long message
Yes, you are right. The formula you mentioned is a standard one. But, It is not a mistake, it is done so to reduce the value of input capacitance only. As you know, the whole method presented in video is not a standard method and have no analytical basis, but it is an approximate method, therefore formulas are designed in such a way to give small and optimal values. The parameter Ri will only affect the value of input capacitor. The remaining parameters remain the same. If you want to use the standard formula of Ri, then you can use, but it will give a high value of input capacitance, hence ripples will reduce, but tracking time will increase.
If you want a constant output voltage using a single boost converter, then you don't need MPPT and no need to sense array voltage & current. You should sense the output voltage of boost converter and feed it it to the controller. Then compare it with 400 V and change duty-ratio accordingly until it reaches the set voltage.
Great video, I have some questions though. If i use this approximate method to decide capacitors and inductor values , would these change if the load resistance changed? For example if I want to use my PV system for which I know Vmp,Pmp,Imp to charge a lithium Ion battery, and I use this approximate method for my boost converter , what do I use as a load? The battery's internal resistace? Can you help me with this.
I haven't tried this method for any other type of load, but my suggestion is that you should first design boost converter by following the video. After that you can replace load resistor with any other type of load like battery, dc load etc.
@@ahsanmehmood9229 Ok thanks, can I use this design to have a circuit for a buck converter as well? Or is it only applicable for a boost converter? Also, i see you connected a capacitor in parallel with each bypass diode to every pv panel, I guess you are using it to remove any unwanted ripples in the output voltage of your pv panels for when the irradiance changes dynamically during your simulation? What is a common value of these capacitors, or does the value of them depend on the pv panel's nominal characteristics?
hello dear I followed your steps but I couldn't get 800 volt at the output as I wish to design boost converter that converts from 312 volt to 800 volt. Thank you
To get constant output voltage, you have to modify control algorithm. As far as this method is concerned, it is just the design method of boost converter for photovoltaic system. There is nowhere claimed in this video that boost converter will give constant output voltage.
@@ahsanmehmood9229 I know that it needs control algorithm. and the algorithm depends on changing duty cycle, so when i tested my system with changing duty cycle manually i found that the system couldn;t reach desired output voltage. If you need my system i can send it to you. thank you
This is not a standard method. I have also mentioned this in the video. In fact, there is no method in the literature for the design of boost converter for PV system. I have proposed this method on the basis of my experience only. This method will give you good approximated values of boost parameters. After that you can further tune them to improve your system's performance.
good day, may you please help me. i am required to design this system but i should have a DC motor as a load. I am required to get at least 12V at the load.
I'm using a DC booster, I am supposed to come up with my own specifications. I was given this topic by my lecturer and I'm lost. He said the reason that there is a DC motor is to prove that the PV can be used to supply constant voltage. I'm required to also simulate this circuit. The topic is" Design a DC motor fed by Photovoltaic source(PV array) via a Dc-dc booster". I would really appreciate it if you could help me with designing the circuit
It is a very nice presentation. Can we go for similar design approach if we want to use other converter like fly back ? Also, can you provide any reference for the method presented in the video? Thanks.
Very informative video. I don't know whether you will reply to this. But can you make a video on designing boost converter for thermoelectric generators?
The method presented in video is for mppt system. But if you want to design boost converter for fixed output voltage, then that requires a different method and setup, which requires a separate video.
@@ahsanmehmood9229 No man, it's works perfectly but i have to put this on my Course Conclusion Thesis, so i have to show the theory behind the expressions. If you have any book, or way do you get it very useful to stud. Gratefull. PS: sorry about my english is not very good!
Thank You for the video Sir. Not seen any video of this kind previously. This one has really helped me. I have some doubts. Here you have calculated the internal resistance for one module, right ? If I have more number of modules connected in series and parallel (for example, 2 modules in series and 6 modules in parallel), can I use the same formula ? Thank You
Hello sir, First of all thank you for sharing this video with us. Could you give us your source for component sizing (determinatio of inductor and capacitor). a course or a book or your notes because I would like to find the formulas used in your method. if possible, you do the same to us for a converter. thank you for your comeback
Dear, as I mentioned in the video, it is an approximate method, not a standard one. I have used my experience and intuition, and modified standard equations of inductor and capacitor of boost converter for component sizing of PV system. If there had been some standard procedure behind it or books or references, I would have published my research paper on this topic.
Right now, I am working on Buck converter video, it will be posted within 2 days. After that, I'll start working on buck-boost converter on your request.
I will like to ask how you calculated RO and where did u get 2.5 cause I got lost there
Hello! Can you please explain why R0=2.5*Rmp?
hello, thank you sir, I would like to ask you : Why you didn't calculate the load resistance in standard test conditons? you calculated R0 just in worst conditions
@ahsanmehmood9229
sir, Please explain that R0=2.5XRmp where the 2.5 is came ? and why did you apply the R0 value (worst condition) in the standard condition? please explain sir
Can you please share research paper you've referred,sir!?
Thanks a lot for your explanation But I have a question concerning the load resistance Ro=2.5*Rmpp, why you have chosen 2.5 exactly? from where have you got this formula?
I have answered these types of questions many times in previous comments.
@@ahsanmehmood9229 OK I will check, Thanks
Do you get the answer about 2.5 because i am searching for that comment but i didn't get it so...
What is the simulation software?
Which paper you have referred for designing this ?
It is mentioned in the video.
Thank you very much @9.50 ..Is there any PSIM simulation available to implement the control using traditional control blocks without using c block or mppt algorithms?
Check this video:
ua-cam.com/video/0mTdtxOxFFc/v-deo.html
@@ahsanmehmood9229 thank you
I don't understand how you get 0,9 in Vmp and 0,05 in Pmp in step number 1. Can you explain?
Thanks :)
Its very easy.
50 W/m2 is equal to 0.05 times 1000 W/m2. Therefore, array power at 50 W/m2 will also be 0.05 times array power at 1000 W/m2.
As irradiance change has little effect on array's voltage. Therefore, Vmp at 50 W/m2 will not be less than 0.9 times Vmp at 1000 W/m2.
Thank you for the video, do you have any videos on voltage droop control in a dc microgrid ?
Noe, brother.
Very nice video. Why is it necessary to have two capacitors? Wouldn't it be enough with just C1?
One capacitor is used for MPPT and other is used for removing ripples in the output waveform.
Can we also designed for three level boost converter ???
Great Video.....How can i have a boost converter design for fixed values of output voltage ?
is there a video for cascaded boost converter with PI controller?
There is no such video present on my channel, because designing PI controller for photovoltaic system is very difficult and usually done through hit and trial. Although you can search on UA-cam for such video, maybe you can find something.
Thanks a lot sir. Very much useful content for my ME project. But still having some more doubt sir pls help me in that.
Dear Ahsan Mehmood...I appreciate you explanation and presentation is very good. In this video please follow the step no 7 ..I think it is wrong ..it will be Ri= Ro(1-Dmp)^2. Please check and acknowledge. So accordingly the design parameters would change...Please Reply and Sorry for such a long message
Yes, you are right. The formula you mentioned is a standard one. But, It is not a mistake, it is done so to reduce the value of input capacitance only.
As you know, the whole method presented in video is not a standard method and have no analytical basis, but it is an approximate method, therefore formulas are designed in such a way to give small and optimal values.
The parameter Ri will only affect the value of input capacitor. The remaining parameters remain the same.
If you want to use the standard formula of Ri, then you can use, but it will give a high value of input capacitance, hence ripples will reduce, but tracking time will increase.
@Ahsan Mehmood Aoa Sir... can I get a detailed video on hybrid Particle Swarm Optimization please
How much value do we give for the filter capacitor and inductor sir
That's what the video is all about. Watch full video.
Hello sir what is the source of this calcul thank you ❤
One doubt that I have a 1.7 kw panel giving MPP 230 volt and I want the boost converter to give 400v then where the change has to be made
If you want a constant output voltage using a single boost converter, then you don't need MPPT and no need to sense array voltage & current. You should sense the output voltage of boost converter and feed it it to the controller. Then compare it with 400 V and change duty-ratio accordingly until it reaches the set voltage.
@@ahsanmehmood9229 okay thanks a lot ❤️
No problem.
Great video, I have some questions though. If i use this approximate method to decide capacitors and inductor values , would these change if the load resistance changed? For example if I want to use my PV system for which I know Vmp,Pmp,Imp to charge a lithium Ion battery, and I use this approximate method for my boost converter , what do I use as a load? The battery's internal resistace? Can you help me with this.
I haven't tried this method for any other type of load, but my suggestion is that you should first design boost converter by following the video. After that you can replace load resistor with any other type of load like battery, dc load etc.
@@ahsanmehmood9229 Ok thanks, can I use this design to have a circuit for a buck converter as well? Or is it only applicable for a boost converter? Also, i see you connected a capacitor in parallel with each bypass diode to every pv panel, I guess you are using it to remove any unwanted ripples in the output voltage of your pv panels for when the irradiance changes dynamically during your simulation? What is a common value of these capacitors, or does the value of them depend on the pv panel's nominal characteristics?
It is applicable only for boost converter.
For buck converter, I'll upload another video.
hello dear
I followed your steps but I couldn't get 800 volt at the output as I wish to design boost converter that converts from 312 volt to 800 volt.
Thank you
To get constant output voltage, you have to modify control algorithm.
As far as this method is concerned, it is just the design method of boost converter for photovoltaic system. There is nowhere claimed in this video that boost converter will give constant output voltage.
@@ahsanmehmood9229 I know that it needs control algorithm. and the algorithm depends on changing duty cycle, so when i tested my system with changing duty cycle manually i found that the system couldn;t reach desired output voltage. If you need my system i can send it to you.
thank you
Sir, if we change the irradiance of the pv array for boost converters then the converter output voltage will always change?
Yes.
Simply awesome ❤️
For boost design, can we apply same for pv array system of 6kW ?
Yes, you can use it for any size of PV array.
@@ahsanmehmood9229 can u give reference for that ?
This is not a standard method. I have also mentioned this in the video.
In fact, there is no method in the literature for the design of boost converter for PV system. I have proposed this method on the basis of my experience only. This method will give you good approximated values of boost parameters. After that you can further tune them to improve your system's performance.
@@ahsanmehmood9229 yes u have mentioned in video also ...but for mention it in report and for showing calculation i m asking.
have you implemented this simulation on Matlab?
This great work, how if i dont use the frequency like yours?
You can use any frequency of your choice.
PV specifications, ripples and switching frequency are designer's choice.
@@ahsanmehmood9229 ok thank you, btw i am still waiting your video about full pv system 🙏🏻
That will take time, I am first focusing on subsystems of full system.
hi for me the ripple is not coming it is lesser than what i calculated
good day, may you please help me. i am required to design this system but i should have a DC motor as a load. I am required to get at least 12V at the load.
what are the specifications of input power source of converter?
which converter are you using?
I'm using a DC booster, I am supposed to come up with my own specifications. I was given this topic by my lecturer and I'm lost. He said the reason that there is a DC motor is to prove that the PV can be used to supply constant voltage. I'm required to also simulate this circuit. The topic is" Design a DC motor fed by Photovoltaic source(PV array) via a Dc-dc booster". I would really appreciate it if you could help me with designing the circuit
what is the rating of DC motor?
Please provide details, why are you using DC booster, what are the ratings of DC motor.
It is a very nice presentation. Can we go for similar design approach if we want to use other converter like fly back ? Also, can you provide any reference for the method presented in the video?
Thanks.
You can try this method on flyback converter, I haven't tested it on that.
There is no reference method. It is based on my intuition and experience.
Very informative video. I don't know whether you will reply to this. But can you make a video on designing boost converter for thermoelectric generators?
My expertise is in solar
i need to design a booster my input is pv panel of 20A and my output should be 48V and the power value is near to 1000w
Then, what is the problem?
How can design the boost parameters when output voltage is fixed(48v)?
The method presented in video is for mppt system.
But if you want to design boost converter for fixed output voltage, then that requires a different method and setup, which requires a separate video.
Can I get the book or reference?
if i want to set Vo, how can i do??
For that you have to use a second converter, which takes input from the first converter's output. In second converter, place voltage sensor at output.
Excellent job! New subscriber
Welcome!
Can tou Tell How do you came to this method?
Is it causing any problem?
@@ahsanmehmood9229 No man, it's works perfectly but i have to put this on my Course Conclusion Thesis, so i have to show the theory behind the expressions.
If you have any book, or way do you get it very useful to stud. Gratefull.
PS: sorry about my english is not very good!
This method does not have any source or book. It is solely based on my experience.
@@ahsanmehmood9229 cool. Can u show us How do you get this expressions or It was made with intuiction?
Through intution.
can u make videomon battery charging using solar using dc dc buck boost converter
If you can share an implantable research paper on this topic, then I can make video on it.
@@ahsanmehmood9229 please share your email id si
amehmood.engr@outlook.com
@@ahsanmehmood9229 sir you got my mail?
Yes, received.
Thank You for the video Sir. Not seen any video of this kind previously. This one has really helped me.
I have some doubts. Here you have calculated the internal resistance for one module, right ? If I have more number of modules connected in series and parallel (for example, 2 modules in series and 6 modules in parallel), can I use the same formula ? Thank You
Yes, you can use this method for any size of array/string.
I love you thank you so much 🙏 🙏
Great work.
Really helpful
Hello sir,
First of all thank you for sharing this video with us.
Could you give us your source for component sizing (determinatio of inductor and capacitor). a course or a book or your notes because I would like to find the formulas used in your method. if possible, you do the same to us for a converter. thank you for your comeback
Dear, as I mentioned in the video, it is an approximate method, not a standard one. I have used my experience and intuition, and modified standard equations of inductor and capacitor of boost converter for component sizing of PV system.
If there had been some standard procedure behind it or books or references, I would have published my research paper on this topic.
@@ahsanmehmood9229 thank you for your reply.
Thank you sir
Super sir
Much appreciated
how to design a buck-boost converter for PV application?
You have to wait, a video on this topic will be uploaded within a month.
@@ahsanmehmood9229 please sir can u upload it as soon as possible
Right now, I am working on Buck converter video, it will be posted within 2 days. After that, I'll start working on buck-boost converter on your request.
@@ahsanmehmood9229 ok sure sir but please if possible do fast bcs i am implementing buck boost converter with mppt
okay.
thanks a lot