基于改进型跟踪微分器的HOT-FSMO无感控制OA
HOT-FSMO Sensorless Control Based on Improved Tracking Differentiator
针对传统一阶磁链滑模观测器存在较大滑模抖振和相位延迟问题,文中提出了一种基于改进型跟踪微分器的高阶终端磁链滑模观测器(High-Order Terminal Flux Sliding Mode Observer,HOT-FSMO).通过设计一种高阶滑模控制律实现磁链估计的抖振抑制,并结合了一种含终端吸引子的低抖振新型跟踪微分器取代传统低通滤波器以便精确跟踪磁链和转子位置,从而实现滤波功能.实验结果表明,在不同转速和负载条件下,相比于传统线性磁链滑模观测器,基于新型跟踪微分器的高阶终端磁链滑模观测器能够有效降低滑模抖振,减小位置估计误差,并加快系统的响应速度,提高系统的动态性能.
To address the problems of large sliding mode chatter and phase delay in the traditional first-order flux sliding mode observer,a HOT-FSMO(High-Order Terminal Flux Sliding Mode Observer)based on an im-proved tracking differentiator is proposed in this study.A high-order sliding mode control law is designed to achieve chatter suppression of flux linkage estimation,and a new tracking differentiator with low chatter containing a terminal attractor is combined to replace the conventional low-pass filter to achieve accurate tracking of the flux linkage and rotor position,as well as filtering functions.The experimental results show that the HOT-FSMO based on the novel tracking differentiator can effectively reduce the sliding mode chattering and decrease the position estimation error,while speeding up the system response and improving the system dynamic performance under different speed and load conditions when compared with the traditional linear flux linkage sliding mode observer.
陈志鹏;张会林;程文彬;王忠洋
上海理工大学 机械工程学院,上海 200093
计算机与自动化
永磁同步电机无感控制抖振抑制相位延迟高阶终端磁链滑模观测器滤波跟踪微分器终端吸引子
permanent magnet synchronous motorsensorless controlchattering suppressionphase delayHOT-FSMOfilteringtracking differentiatorterminal attractor
《电子科技》 2024 (008)
17-25 / 9
国家自然科学基金(12172228,11572187);上海市自然科学基金(22ZR1444400);上海市科学技术委员会基金(22dz1206005,22dz1204202);National Natural Science Foundation of China(12172228,11572187);Natural Science Foundation of Shanghai(22ZR1444400);Founda-tion of Science and Technology Commission of Shanghai Municipality(22dz1206005,22dz1204202).
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