CAJ | 학술논문

为降低传统直接转矩控制（DTC）的转矩脉动，提出了一种基于模糊空间矢量调制的异步电机直接转矩控制方案。该方案将模糊控制技术和空间调制（SVM）技术相结合。模糊控制器的两个输入为转矩误差和误差的变化率，输出为电压矢量的转矩控制分量。为提高控制系统的鲁棒性，采用了基于反电动势的模型参考自适应（MRAS）的无速度估算方法对转子转速进行估算。仿真结果验证了该方案的可行性和有效性。
위강저전통직접전구공제（DTC）적전구맥동，제출료일충기우모호공간시량조제적이보전궤직접전구공제방안。해방안장모호공제기술화공간조제（SVM）기술상결합。모호공제기적량개수입위전구오차화오차적변화솔，수출위전압시량적전구공제분량。위제고공제계통적로봉성，채용료기우반전동세적모형삼고자괄응（MRAS）적무속도고산방법대전자전속진행고산。방진결과험증료해방안적가행성화유효성。
A new direct torque control （DTC） strategy of induction motors based on fuzzy space vector modulation （SVM） technology was proposed in order to reduce the torque ripple of conventional torque control, which combined the fuzzy control technology and space vector modulation technology. The fuzzy logic control has two inputs （toque error and its change rate） and one output （the toque component of reference voltage vector）. Model Reference Adaptive System （MRAS） estimation method based on back-EMF was utilized to estimate rotor speed in order to improve the robustness of the system. Simulation results verified its feasibility and effectiveness.