The invention belongs to the technical field of alternating current motor transmission control, and provides an electromechanical suspension sensorless motor control system and method. The defects that a sensor occupies a large space and is easily influenced by the environment are overcome. The output end of the current estimation module is connected with the input end of the continuous piecewise function module, the output end of the continuous piecewise function module is connected with the input end of the continuous function and reaching law module, and the output end of the continuous function and reaching law module is connected with the input end of the low-pass filtering module and the input end of the current estimation module. And the output end of the low-pass filtering module is connected with the input end of the arc tangent function module. According to the method, the superhelix algorithm is combined on the basis of a traditional sliding-mode observer, a continuous piecewise function replaces a switching function, the sliding-mode observer is reconstructed in cooperation with the index reaching law, the buffeting of the observer is effectively weakened through the improved sliding-mode observer, and the rotor position estimation precision is improved.
本发明属于交流电机传动控制技术领域,提供了一种机电悬架无位置传感器电机控制系统及方法。解决了传感器占用空间较多、易受到环境影响的不足。电流估计模块的输出端连接连续分段函数模块的输入端,连续分段函数模块的输出端连接连续函数和趋近律模块的输入端,连续函数和趋近律模块的输出端分别连接低通滤波模块和电流估计模块的输入端,低通滤波模块的输出端连接反正切函数模块的输入端。本发明在传统滑模观测器的基础上结合超螺旋算法,以一种连续分段函数代替了开关函数,并配合指数趋近律,重新构建了滑模观测器,改进后的滑模观测器有效削弱了观测器的抖振,提高了转子位置估计精度。
Electromechanical suspension sensorless motor control system and method
一种机电悬架无位置传感器电机控制系统及方法
2023-06-23
Patent
Elektronische Ressource
Chinesisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
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