微特电机
微特電機
미특전궤
SMALL & SPECIAL ELECTRICAL MACHINES
2010年
2期
49-51,58
,共4页
永磁同步电动机%模糊控制%修正因子%预测控制
永磁同步電動機%模糊控製%脩正因子%預測控製
영자동보전동궤%모호공제%수정인자%예측공제
permanent magnet synchronous motor%fuzzy control%adjusting factor%predictive control
针对永磁同步电动机常规模糊控制的不足,提出了一种基于模糊和预测的自适应控制策略.该策略通过分析模糊控制存在的控制盲区,设计了控制模式切换值,并在速度偏差较大时采用带修正因子的模糊控制,以改善对象在不同情况下的动态响应特性;而当小偏差时采用基于模型的一步预测控制,提高控制精度.仿真结果表明,采用该方法的调速系统具有良好的控制效果.
針對永磁同步電動機常規模糊控製的不足,提齣瞭一種基于模糊和預測的自適應控製策略.該策略通過分析模糊控製存在的控製盲區,設計瞭控製模式切換值,併在速度偏差較大時採用帶脩正因子的模糊控製,以改善對象在不同情況下的動態響應特性;而噹小偏差時採用基于模型的一步預測控製,提高控製精度.倣真結果錶明,採用該方法的調速繫統具有良好的控製效果.
침대영자동보전동궤상규모호공제적불족,제출료일충기우모호화예측적자괄응공제책략.해책략통과분석모호공제존재적공제맹구,설계료공제모식절환치,병재속도편차교대시채용대수정인자적모호공제,이개선대상재불동정황하적동태향응특성;이당소편차시채용기우모형적일보예측공제,제고공제정도.방진결과표명,채용해방법적조속계통구유량호적공제효과.
In order to tackle the problems existing in conventional fuzzy control method of permanet magnet synchronous motors (PMSMs),an adaptive control strategy based on fuzzy control and predictive control was proposed.The switch value of control modes through the analysis of the control blind area existing in fuzzy control was designed,and the fuzzy control with adjusting factor was adopted when the velocity deviation was larger in order to improve the dynamic response performance of the object in different situations,while one-step predictive control based on the mechanism model was adopted when the deviation was small in order to improve the control precision.Simulation results show that the speed servo system with this method has a better control effect.
