The 5.2 and 5.3 both are great lectures on common mode phenomenon in grid-tie inverters, the depth which is hard to find anywhere else. Thank you very much.
The box equation would be Vo-Vdc/2=Vo' I feel. Then Vcg=Vg/2 - which would implicate that the common mode voltage is getting imposed by the grid on to the inverter.
For Unipolar Switching: The box equation shown Vo-Vdc=Vo'. and finally Vcg= (Vg/2-Vdc/2)+Vdc. I feel that the box equation should be : Vo-(Vdc/2)=Vo' [Adding previous two equations would result in 2Vo-Vdc=2Vo'] and Vcg=Vg/2.
@4:41 the clarke transform is written but I was wondering why for our calculation of power is the 3/2 factor not considered? or is it considered in the work but just not written on the notes?
Very nice explanation sir.. Sir will you please tell me which book is better to read in case of power electronics convertor for renewable Energy source?
transformer works on dc in a linear region and then it gets saturated and power electronics is all about that linear region. moreover the voltage across the inductor is similar to ac when s1 is on and s2 is off and vice versa
Hello sir, May I know if I wanna use the method of APD in the DC-AC three-phase independent buck converter, then where should I connect this method of APD? Thank you in advance. will be waiting for your reply.
I am working on "Dual Phase-Shifted Modulation Strategy for the Three-Level Dual Active Bridge DC-DC Converter" could you please help in switching sequence circuit sir.
Such an important typology to know in a TN-C-S network, eliminating most of the earth leakage from the parasitic capacitance, removes the tingles on taps and other earthed equipment!
How do we solve the grid integration challenges, in a case where losing 5MW of load results in over frequently, the solar plant disconnects and a total collapse of the grid occurs
Very good job ! One question! With the parasitic capacitances, how can the voltage gain be lowered until 0.23 ? Can you share the practical voltage gain curve ?
GaN or SiC are best because the first leg is supposed to be a high frequency leg and we need to have very less reverse recovery so these device helps us so we use GaN or SiC devices.
fascinating work👍. great positive, but sir the power loss is quite a big issue.(just personal view) In IISc, a work is done on variable capacitor. Kudos to the team for such good work!
Thanks Aman for your sharing your views. While I agree with you on the increased power loss issue, I would like to point out the huge power processed by the electronic capacitor. For a 2 kW single phase inverter, the instanteneous power varies from 0 kW to 4 kW. Hence, in the view of processed power, the power loss is relatively small. The suggested solution finds application where the volume reduction takes precedence over increase in power loss, e.g. on-board chargers for EVs.
