摘要
针对整数阶滑模控制器容易引起永磁同步电机抖振的问题,利用分数阶系统具有能量传递缓慢及逐渐收敛的原理,设计一种分数阶滑模控制器来减弱永磁同步电机抖振及提高电机性能指标。再利用Lyapunov稳定性理论和分数阶微积分理论证明这种分数阶滑模控制器的稳定性。利用模糊算法实现了滑模切换项和分数阶阶次的在线自适应调节。仿真及试验结论证明,所提方法可以有效减弱永磁同步电机系统的抖振,缩短调节时间,并具有较强的鲁棒性。
In order to deal with the chattering problem of permanent magnet synchronous motor(PMSM)caused by integer order sliding mode controller and improve the performance of PMSM,a fractional order sliding mode controller was designed to reduce the chattering of PMSM based on the principle of slow energy transfer and gradual convergence of fractional order system.Then,the stability of the fractional order sliding mode controller was proved by Lyapunov stability theory and fractional calculus theory.The sliding mode switching term and fractional order were achieved by the online adaptive adjustment by fuzzy algorithm.The simulation and experimental results showed that the chattering of PMSM system was effectively reduced,the regulation time was shorter,and the robustness was stronger by the proposed method.
作者
金鹏
JIN Peng(Department of Electrical Engineering,Liaoning Engineering Vocational College,Liaoning Tieling 112008,China)
出处
《机械设计与制造》
北大核心
2021年第8期270-274,280,共6页
Machinery Design & Manufacture
基金
辽宁省自然科学基金指导计划项目(20170540431)
辽宁省教育厅科学研究经费项目(LGZY2019003)
辽宁省教育厅科学研究经费项目(LGZY2020002)。
关键词
永磁同步电机
滑模控制
分数阶微积分
模糊控制
抖振
Permanent Magnet Synchronous Motor
Sliding Mode Control
Fractional Calculus
Fuzzy Control
Chattering
