作　　者： ; ;

机构地区： 湖南大学电气与信息工程学院

出　　处： 《煤炭学报》 2009年第4期572-576,共5页

摘　　要： 针对高性能的永磁同步电机伺服驱动系统,考虑电机实际运行过程中定子电阻、转子磁链和负载转矩的变化必然影响到系统的伺服精度,采用自适应反步法设计控制器,选择适当的Lyapunov函数来保证整个系统的稳定性,进而实现转速的非线性控制,推导出控制律和参数自适应律.为提升系统的稳态性能,在控制输入中引入了转速误差的积分项,从而消除残留误差.在补偿参数不确定性影响与提高系统的抗干扰能力的同时,实现电机转速的高性能全局渐近稳定跟踪控制.仿真结果证明,控制策略在参数摄动和负载扰动下都是有效的、正确的. A new robust nolinear speed tracking controller for high-performance servo drive of PMSM （ permanent magnet synchronous motor） based on adaptive baekstepping technique was presented. The controller can compen- sate the unknown system parameters and disturbances, and reject any bounded unmeasurable disturbances entering the system. The obtained performances were improved via the introduction of an integral action in the design procedure. The steady state performances of the controller are, thus, enhanced. In presence of non-zero mean perturbations, this modification guarantees vanishing residual errors. The feedback system is globally asymptotically stable in the sense of the lyapunov stability theory. Some comparative simulation results were presented to verify the feasibility and illustrated the performance of the proposed control scheme under the various conditions.

关 键 词： 永磁同步电机 鲁棒 自适应反步法 速度跟踪

领　　域： [电气工程]