摘要：永磁直线同步电机具有损耗小、力能指标高、响应速度快等优点。针对其位置控制精度问题，提出了基于端口受控哈密顿系统的L2增益扰动抑制的控制方法，设计的控制系统具有良好的可靠性和稳定性。首先，从永磁直线同步电机的原始模型和能量平衡的观点出发，建立永磁直线同步电机的PCH系统模型。其次，将最大输出功率控制原理与L2增益扰动抑制控制方法相结合，设计了伺服控制系统。实验结果表明，该系统可以对负载扰动进行有效抑制，降低了稳态误差，提高了控制精度。

关键词：永磁直线同步电机；端口受控哈密顿；L2增益扰动抑制；伺服控制系统
Abstract: Permanent magnet linear synchronous motor has the advantage of small loss, high-power index and fast response,etc. According to the accuracy of position control, proposed the disturbance rejection control method of L2 gain based on the port-controlled Hamiltonian system, the design of the control system had good reliability and stability.Firstly,from the perspective of the original model of permanent magnet linear synchronous motor and energy balance, established the PCH system model of the permanent magnet linear synchronous motor. Secondly, the maximum output power control principle and disturbance rejection control method of L2 gain was combined, designing the servo control system. The experimental results show that the system can inhibit the load disturbance effectively, reduce the error of stable state and improve accuracy of the control.

Key words: permanent magnet linear synchronous motor；port-controlled Hamiltonian；disturbance rejection of L2 gain；servo control system