中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2012年
8期
987-991
,共5页
无轴承异步电机%支持向量机%α阶逆系统%解耦
無軸承異步電機%支持嚮量機%α階逆繫統%解耦
무축승이보전궤%지지향량궤%α계역계통%해우
bearingless induction motor%support vector machine(SVM)%α-th order inverse system%decoupling
针对无轴承异步电机多变量、非线性、强耦合的特点,提出一种基于支持向量机α阶逆系统理论的非线性动态解耦控制策略。将通过支持向量机回归方法辨识出的无轴承异步电机逆系统串接在原系统之前,构成伪线性复合系统,实现整个系统的线性化。最后根据线性系统理论进行了系统综合。仿真和实验研究表明,支持向量机α阶逆系统方法能够实现无轴承异步电机悬浮力和旋转力之间的动态解耦,控制系统具有良好的动静态性能。
針對無軸承異步電機多變量、非線性、彊耦閤的特點,提齣一種基于支持嚮量機α階逆繫統理論的非線性動態解耦控製策略。將通過支持嚮量機迴歸方法辨識齣的無軸承異步電機逆繫統串接在原繫統之前,構成偽線性複閤繫統,實現整箇繫統的線性化。最後根據線性繫統理論進行瞭繫統綜閤。倣真和實驗研究錶明,支持嚮量機α階逆繫統方法能夠實現無軸承異步電機懸浮力和鏇轉力之間的動態解耦,控製繫統具有良好的動靜態性能。
침대무축승이보전궤다변량、비선성、강우합적특점,제출일충기우지지향량궤α계역계통이론적비선성동태해우공제책략。장통과지지향량궤회귀방법변식출적무축승이보전궤역계통천접재원계통지전,구성위선성복합계통,실현정개계통적선성화。최후근거선성계통이론진행료계통종합。방진화실험연구표명,지지향량궤α계역계통방법능구실현무축승이보전궤현부력화선전력지간적동태해우,공제계통구유량호적동정태성능。
Because a bearingless induction motor is of multi-variable,nonlinear and high coupling,a nonlinear dynamic decoupling control approach based on SVM α-th order inverse system method was proposed.The inverse system of the bearingless induction motor was identified by the SVM regression method.By cascading the inverse system with the bearingless induction motor,the nonlinear system was transformed into a pseudo-linear system.Finally,linear control system techniques were applied to these linear subsystems to complete synthesis,simulation and experiment.The study shows that this kind of control strategy can realize dynamic decoupling control among torque and suspension forces of the bearingless induction motor,and that the control system has good dynamic and static performance.
