一种基于放电曲线的电动汽车牵引逆变器直流母线电容估算改进方法

DC-link capacitor is an important part of traction inverters in electric vehicles (EVs), contributing to cost, size, and failure rate on a considerable scale. This article proposes a noninvasive dc-link capacitance estimation method based on the capacitor discharge profile during the turning-off transition of a traction inverter. The proposed method relies on the existing control and measurement o...