摘要
滑模控制器的切换增益需要随着参数摄动和外部扰动变化,但是增大切换增益会加剧系统抖振。针对这一问题,采用增益调度和自适应相结合的方法对永磁同步电机滑模控制器的切换增益进行实时整定。该方法根据自适应律在线调整切换增益系数的边界范围,同时以关于直轴、交轴电流的积分滑模面函数作为调度变量,在允许边界范围内对切换增益系数进行增益调度。所设计方法在保证系统鲁棒性的前提下,削弱了系统抖振,改善了控制性能。
The switching gains of a sliding mode controller （SMC） are required to change with the parameter perturbation and external disturbances. However, to increase the switching gains will intensify the system chattering. To solve this problem, a combination of gain-scheduled and adaptive method was proposed to set the switching gains of SMC for permanent magnet synchronous machines （PMSM）. In this method, the boundary layers of the switching gains were adjusted with an adaptive law, and the coefficients of the switching gains were gain-scheduled on-line within the allowed boundary layers, with the integral sliding surfaces of d-q axis currents as scheduling variables. The designed method not only ensures the system robustness, but also weakens the system chattering and improves the control performances.
出处
《电气传动》
北大核心
2015年第4期3-7,共5页
Electric Drive
基金
黑龙江省教育厅科学技术研究项目(12541158)
关键词
永磁同步电机
滑模控制
增益调度
切换增益
自适应
permanent magnet synchronous machine （PMSM）
sliding mode control （SMC）
gain-scheduled
switching gain
adaptive method
