An open-end winding permanent magnet synchronous motor (OW-PMSM) fed by dual inverter is a competitive option for the drive system of dual power electric vehicles. It allows manageable power flow between two isolated power sources through the motor without requiring a DC/DC converter. Based on the mathematical model of the OW-PMSM and the principles of power sharing, this paper first compares the power sharing capacity among some existing torque regulation algorithms, including unit power factor (UPF) control, maximum torque per ampere (MTPA) control, and constant back electromotive force (CBE) control. Then a control algorithm named minimum voltage vector amplitude (MVVA) is presented, which features covering the maximum motor operating range and the maximum power sharing range under the linear voltage vector distribution. Simulation results confirm the validity of the proposed MVVA control, and demonstrate its advantages in vehicular applications.

由双逆变器供电的开放式绕组永磁同步电动机（OW-PMSM）是双动力电动汽车驱动系统的竞争选择。它允许通过电动机在两个隔离电源之间进行可管理的功率流，而无需DC / DC转换器。基于OW-PMSM的数学模型和功率共享的原理，本文首先比较了一些现有转矩调节算法的功率共享能力，包括单位功率因数（UPF）控制，最大每安培转矩（MTPA）控制，和恒定的反电动势（CBE）控制。然后提出了一种名为最小电压矢量幅度（MVVA）的控制算法，该算法涵盖了线性电压矢量分布下的最大电动机工作范围和最大功率共享范围。