hutanga
Newbie level 2
Hi,
I'm working on my final year project --> 3-phase power inverter to drive bldc. output current from the inverter is in quasi square wave waveform and i am using 30V dc supply.
i'm having problem in determining dc link capacitor value. frequency of the system is 20 kHz and peak-to-peak input ripple current is 22 A. the equation for calculating capacitance is given by
C = I/Vf
as far as i understood, the voltage in that equation is the ripple voltage. correct me if i'm wrong, but since i'm using dc power supply, the voltage ripple is ideally zero. so how do i calculate capacitance value.
thank you
I'm working on my final year project --> 3-phase power inverter to drive bldc. output current from the inverter is in quasi square wave waveform and i am using 30V dc supply.
i'm having problem in determining dc link capacitor value. frequency of the system is 20 kHz and peak-to-peak input ripple current is 22 A. the equation for calculating capacitance is given by
C = I/Vf
as far as i understood, the voltage in that equation is the ripple voltage. correct me if i'm wrong, but since i'm using dc power supply, the voltage ripple is ideally zero. so how do i calculate capacitance value.
thank you