基于逆变器和电机的汽车电池幅频解耦加热器及集成策略

The low-temperature preheating of lithium-ion batteries is an important means for improving their fast-charging performances in electric vehicles at low temperatures. In recent years, a trend has emerged toward low-cost, small capacity, and high efficiency heaters, in which a bridge inverter self-heater is integrated into the motor inverters. However, the preheating current is limited by the power...