针对负载转矩已知和未知两种情况,建立了永磁同步电动机的端口受控哈密顿速度控制模型,利用互联和阻尼配置的无源性方法,设计了满足最大输出功率控制原理的速度控制器,给出平衡点的稳定性分析,并设计了负载转矩观测器。仿真结果证明了此控制方案具有抑制扰动的转速跟踪特性。
The PCH(POrt -controlled Hamiltonian) speed control model of PMSM (permanent magnet synchronous motor) was established and the speed controller was designed using the passivity method of interconnection and damping assignment, based on maximum output power control theory, when the load torque was known and unknown. The analysis of stabilization of equilibrium was discussed, while the load torque observer was also given. Results of simulation showed that the control method proposed in this paper had the characteristic of speed tracking which can inhibit disturbance.