Capacitor Role in a PV System
Comments
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Re: Capacitor Role in a PV SystemPNjunction wrote: »Would a large cap be of any benefit to a normal pwm or mppt charge controller on the input? I kind of doubt it because I don't see it recommended, but had to ask.
Generally no. Small caps can reduce EMI and protect against fast transients, but large caps can actually mess up MPPT charge controllers by making the voltage change lag load change. This confuses the MPPT algorithm (depending on sweep speed) and can cause the MPPT to select a poor operating point. -
Re: Capacitor Role in a PV Systembill von novak wrote: »Generally no. Small caps can reduce EMI and protect against fast transients, but large caps can actually mess up MPPT charge controllers by making the voltage change lag load change. This confuses the MPPT algorithm (depending on sweep speed) and can cause the MPPT to select a poor operating point.
Good post. Hadn't thought of that, but it's true!
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