System and method for reducing battery ripple loss
System and method for reducing battery ripple loss
- Neue Suche nach: NAMUDURI CHANDRA S
- Neue Suche nach: GOPALAKRISHNAN SURESH
- Neue Suche nach: HAO LEI
- Neue Suche nach: NAMUDURI CHANDRA S
- Neue Suche nach: GOPALAKRISHNAN SURESH
- Neue Suche nach: HAO LEI
A power supply control system for an electric vehicle includes N power supply inverters configured to be connected to a battery system of the electric vehicle. Each of the N power inverters includes a plurality of power switches, where N is an integer greater than one. The N power inverters are configured to be connected to stator phase windings of N electric machines, respectively. The controller is configured to determine a switching frequency of the N electric machines and (N-1) phase offsets of (N-1) electric machines of the N electric machines, generate a set of pulse width modulation (PWM) switching signals at the switching frequency for a first power inverter of the N power inverters, and outputting (N-1) sets of PWM switching signals to the (N-1) motors of the N motors based on the sets of PWM switching signals and the (N-1) phase offsets.
一种用于电动车辆的电源控制系统包括N个电源逆变器，所述电源逆变器配置为连接至所述电动车辆的电池系统。所述N个电源逆变器中的每一者包括多个电源开关，其中N是大于一的整数。所述N个电源逆变器配置为分别连接至N个电机的定子相位绕组。控制器配置为确定所述N个电机的切换频率和所述N个电机中的（N‑1个）电机的（N‑1个）相位偏移，为所述N个电源逆变器中的第一电源逆变器生成处于所述切换频率下的脉冲宽度调制（PWM）切换信号组，并且基于所述PWM切换信号组和所述（N‑1个）相位偏移来将（N‑1个）PWM切换信号组输出到所述N个电机中的所述（N‑1个）电机。
Dokumentinformationen
System and method for reducing battery ripple loss
用于减少电池纹波损耗的系统和方法
2023-12-05
Patent
Elektronische Ressource
Chinesisch
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