inverter dc bus presents high-frequency pulsating current due to
device switching. Conventional inverter design sizing dc-bus
capacitor based on voltage ripple is no-longer effective. In order
to handle high current in high temperature environment, a lowinductance
high-current film capacitor is proposed to replace
the conventional electrolytic bulk capacitors for a 75-kW
traction motor drive inverter. The proposed design results in
significant size reduction and performance improvement over
the existing one. Characteristics of the low-inductance highcurrent
film capacitor are presented to show its superiority to
the conventional electrolytic capacitors. Experimental results are shown to verify the need of the proposed capacitor.
A_Low-Inductance_DC_Bus_Cap_for_High_Performance_Traction_Motor_Drive_Inverters 