中文摘要：

以背靠背电压源变流器与永磁同步电动机（PMSM）组成的交流传动系统为研究对象,基于能量成形和端口受控哈密顿（PCH）系统理论,结合传统PI控制策略,研究电机的四象限运行。网侧变流器的控制采用带有负载电流前馈的双闭环矢量控制,机侧变流器采用状态误差PCH控制方法。通过网侧和机侧协调控制策略,实现了能量双向流动、直流母线电压可控、单位功率因数、电机四象限运行等控制目标。仿真结果验证了控制策略的有效性。

英文摘要：

For the drive system incorporated with back-to-back voltage source converter and PMSM（permanent magnet synchronous motor）,four-quadrant operation of the motor is studied based on energy shaping and PCH（port-controlled Hamiltonian） system theory and traditional PI control scheme.A double closed loop vector control strategy with improved load current feedforward is presented for the grid side converter,and a state error port-controlled Hamiltonian control method is proposed for the machine side converter.According to coordinated control strategy for the grid side and the machine side,the control objectives are achieved that energy is bidirectional flow,the DC bus voltage is adjustable,the power factor is one,and the motor can run in four-quadrant state.Finally,the effectiveness of control strategies is verified by simulation results.