微电机
微電機
미전궤
Micromotors
2015年
9期
71-75
,共5页
贺虎成%胡春龙%王勉华%王永宾
賀虎成%鬍春龍%王勉華%王永賓
하호성%호춘룡%왕면화%왕영빈
开关磁阻电机%单神经元%PID%直接转矩控制
開關磁阻電機%單神經元%PID%直接轉矩控製
개관자조전궤%단신경원%PID%직접전구공제
switched reluctance motor%single neuron%PID%direct torque control
针对开关磁阻电机转矩脉动大、非线性严重和数学模型难建立等问题,将单神经元自适应PID控制和传统PI控制相结合,构成了开关磁阻电机直接转矩控制系统。根据预设定的误差限,利用神经元自学习能力消除系统较大的误差信号,小误差信号通过传统PI进行消除,使得系统能够更好的适应各种扰动。最后,在Matlab/Simulink环境下,对四相开关磁阻电机进行了仿真,仿真结果表明,复合控制方法能够有效的减小转矩脉动,提高系统的动、静态性能。
針對開關磁阻電機轉矩脈動大、非線性嚴重和數學模型難建立等問題,將單神經元自適應PID控製和傳統PI控製相結閤,構成瞭開關磁阻電機直接轉矩控製繫統。根據預設定的誤差限,利用神經元自學習能力消除繫統較大的誤差信號,小誤差信號通過傳統PI進行消除,使得繫統能夠更好的適應各種擾動。最後,在Matlab/Simulink環境下,對四相開關磁阻電機進行瞭倣真,倣真結果錶明,複閤控製方法能夠有效的減小轉矩脈動,提高繫統的動、靜態性能。
침대개관자조전궤전구맥동대、비선성엄중화수학모형난건립등문제,장단신경원자괄응PID공제화전통PI공제상결합,구성료개관자조전궤직접전구공제계통。근거예설정적오차한,이용신경원자학습능력소제계통교대적오차신호,소오차신호통과전통PI진행소제,사득계통능구경호적괄응각충우동。최후,재Matlab/Simulink배경하,대사상개관자조전궤진행료방진,방진결과표명,복합공제방법능구유효적감소전구맥동,제고계통적동、정태성능。
For large torque ripple , serious nonlinear problem and the mathematical model is difficult to establish , the direct torque control system was design for switched reluctance motor , which combined single neuron adaptive PID control with the traditional PI control .According to the error limit , the self-learning ability of neurons was used to eliminate a large error signal , and the small error signal was eliminated by the traditional PI control .The simulation for the four-phase switched reluctance motor was done in the Matlab/Simulink environment .The simulation results show that control strategy can effectively suppress torque fluc -tuation and obtain good system characteristics .