kathmandu
Full Member level 5
Hello,
I would like to charge a battery using two current sources (solar/wind). I thought of using two buck-boost converters in the following configuration:
The two chargers are designed to run in CCM mode hence the inductor currents (i1 and i2) flows like in the diagram above.
During normal operation, i1 and i2 are (supposedly) flowing through the battery only. But what happened when one of the current sources (i1/i2) is much smaller (or almost zero)? Does the strongest current flow through the opposite inductor, "charging" it with a negative current?
Anyway, for this particular case, I could define a control scheme for (not) driving the synchronous Mosfet when the current through that particular inductor is too small (thus changing the operating mode into an asynchronous one).
But, when both i1 and i2 currents are large, is there any (bad) influence if the converters run in synchronous mode?
I hope I made myself clear: in synchronous mode, the two (charged) inductors are present in the same loop, with opposite current senses.
Thank you very much for your time.
I would like to charge a battery using two current sources (solar/wind). I thought of using two buck-boost converters in the following configuration:
The two chargers are designed to run in CCM mode hence the inductor currents (i1 and i2) flows like in the diagram above.
During normal operation, i1 and i2 are (supposedly) flowing through the battery only. But what happened when one of the current sources (i1/i2) is much smaller (or almost zero)? Does the strongest current flow through the opposite inductor, "charging" it with a negative current?
Anyway, for this particular case, I could define a control scheme for (not) driving the synchronous Mosfet when the current through that particular inductor is too small (thus changing the operating mode into an asynchronous one).
But, when both i1 and i2 currents are large, is there any (bad) influence if the converters run in synchronous mode?
I hope I made myself clear: in synchronous mode, the two (charged) inductors are present in the same loop, with opposite current senses.
Thank you very much for your time.