微电机
微電機
미전궤
MICROMOTORS SERVO TECHNIQUE
2014年
9期
53-56
,共4页
五相开关磁阻电机%直接转矩控制%BP神经网络%变参数
五相開關磁阻電機%直接轉矩控製%BP神經網絡%變參數
오상개관자조전궤%직접전구공제%BP신경망락%변삼수
five-phase switched reluctance motor%direct torque control%BP neural network%variable parameter
针对五相开关磁阻电机，进行了直接转矩控制方法的分析与研究，提出了一种基于BP神经网络的PID与传统PI相结合的新型控制策略。在大误差下采用神经网络控制，小误差下采用传统PI控制，并且在传统PI控制环节上，采用了依据负载转矩误差限构成的变参数法，对系统速度误差进行快速调整，可以更好的适应外界干扰。对五相开关磁阻电机进行了仿真，仿真结果表明，这种控制方法能够有效的减小转矩脉动，并且避免了电机多变量、强耦合、非线性等问题，系统动静态性能良好。
針對五相開關磁阻電機，進行瞭直接轉矩控製方法的分析與研究，提齣瞭一種基于BP神經網絡的PID與傳統PI相結閤的新型控製策略。在大誤差下採用神經網絡控製，小誤差下採用傳統PI控製，併且在傳統PI控製環節上，採用瞭依據負載轉矩誤差限構成的變參數法，對繫統速度誤差進行快速調整，可以更好的適應外界榦擾。對五相開關磁阻電機進行瞭倣真，倣真結果錶明，這種控製方法能夠有效的減小轉矩脈動，併且避免瞭電機多變量、彊耦閤、非線性等問題，繫統動靜態性能良好。
침대오상개관자조전궤，진행료직접전구공제방법적분석여연구，제출료일충기우BP신경망락적PID여전통PI상결합적신형공제책략。재대오차하채용신경망락공제，소오차하채용전통PI공제，병차재전통PI공제배절상，채용료의거부재전구오차한구성적변삼수법，대계통속도오차진행쾌속조정，가이경호적괄응외계간우。대오상개관자조전궤진행료방진，방진결과표명，저충공제방법능구유효적감소전구맥동，병차피면료전궤다변량、강우합、비선성등문제，계통동정태성능량호。
For five-phase switched reluctance motor , the direct torque control strategy was researched and analyzed .A novel control strategy based on back propagation neural network PID combined with traditional PI control was proposed .It adopted neural network controller when the speed error was big , and adopted tra-ditional PI controller when the error was small .In the traditional PI control link , the speed error was adjus-ted quickly and can better adapt to outside interference by using a variable parameter method based on the load torque error limits .The simulation results of the five-phase switched reluctance motor direct torque con-trol show that this control strategy can effectively suppress torque fluctuation and avoid the motor multivari -able, strong coupling, nonlinear problems, static and dynamic characteristics of a good system .
