一种永磁同步电机无传感器模型预测磁链控制方法

本发明属于机电控制领域，公开了一种永磁同步电机无传感器模型预测磁链控制方法。首先，通过滑模观测器及基于SOGI的锁相环，观测电机转速ω和转子位置角θe；接着，将给定转速ω*和转速ω通过转速环SMC控制器，得到给定转矩Te*；然后，由转速ω及d/q轴电流id/iq观测负载扰动值#imgabs0#并将负载扰动值#imgabs1#前馈补偿到给定转矩Te*；最后，将观测得到的转速ω、转子位置角θe、给定转矩Te*、负载扰动值#imgabs2#以及采样得到的三相电压ua/ub/uc、三相电流ia/ib/ic等代入模型预测磁链控制模块进行运算。本发明采用滑模观测器加改进锁相环的方式，提高转子位置估计精度，...

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Bibliographic Details
Format Patent
LanguageChinese
Published 31.10.2023
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:本发明属于机电控制领域，公开了一种永磁同步电机无传感器模型预测磁链控制方法。首先，通过滑模观测器及基于SOGI的锁相环，观测电机转速ω和转子位置角θe；接着，将给定转速ω*和转速ω通过转速环SMC控制器，得到给定转矩Te*；然后，由转速ω及d/q轴电流id/iq观测负载扰动值#imgabs0#并将负载扰动值#imgabs1#前馈补偿到给定转矩Te*；最后，将观测得到的转速ω、转子位置角θe、给定转矩Te*、负载扰动值#imgabs2#以及采样得到的三相电压ua/ub/uc、三相电流ia/ib/ic等代入模型预测磁链控制模块进行运算。本发明采用滑模观测器加改进锁相环的方式，提高转子位置估计精度，同时基于模型预测磁链控制，无需电流环参数和权重系数整定，并将滑模控制和负载扰动观测器结合，提高系统鲁棒性和抗干扰能力。 The invention belongs to the field of electromechanical control, and discloses a sensorless model prediction flux linkage control method for a permanent magnet synchronous motor. The method comprisesthe following steps: firstly, observing a motor rotating speed omega and a rotor position angle theta e through a sliding mode observer and a phase-locked loop based on SOGI; then, making the given rotating speed omega* and the rotating speed omega pass through a rotating speed loop SMC controller to obtain a given torque Te*; then, observing a load disturbance value according to the rotating speed omega and d/q axis current id/iq, and compensating the load dis
Bibliography:Application Number: CN202010335878