日用电器
日用電器
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Electrical Appliances
2015年
9期
58-60,64
,共4页
陈小玲%李海华%张亚兰
陳小玲%李海華%張亞蘭
진소령%리해화%장아란
异步电机%无功补偿%软启动%MATLAB仿真
異步電機%無功補償%軟啟動%MATLAB倣真
이보전궤%무공보상%연계동%MATLAB방진
induction motor%reactive power compensation%soft-start%MATLAB simulation
针对异步电机启动电流谐波大,启动功率因数低等问题,提出一种基于无功补偿的电机软启动方法。建立了基于无功补偿的电机软启动器系统结构模型,分析无功补偿装置的控制方式以及补偿电容的算法。并借助MATLAB分别对三种启动方式进行仿真对比,结果表明,基于无功补偿的电机软启动方式在减小无功功率提高功率因素的同时,进一步减小了启动电流。
針對異步電機啟動電流諧波大,啟動功率因數低等問題,提齣一種基于無功補償的電機軟啟動方法。建立瞭基于無功補償的電機軟啟動器繫統結構模型,分析無功補償裝置的控製方式以及補償電容的算法。併藉助MATLAB分彆對三種啟動方式進行倣真對比,結果錶明,基于無功補償的電機軟啟動方式在減小無功功率提高功率因素的同時,進一步減小瞭啟動電流。
침대이보전궤계동전류해파대,계동공솔인수저등문제,제출일충기우무공보상적전궤연계동방법。건립료기우무공보상적전궤연계동기계통결구모형,분석무공보상장치적공제방식이급보상전용적산법。병차조MATLAB분별대삼충계동방식진행방진대비,결과표명,기우무공보상적전궤연계동방식재감소무공공솔제고공솔인소적동시,진일보감소료계동전류。
Aiming at the problem of the great starting current harmonics and the low starting power factor about in-duction motor, a motor soft start method based on reactive power compensation is proposed. It establishes a motor soft starter system model based on reactive power compensation. And this paper analyzes the control method of reactive power compensation device and the algorithm of compensation capacitor. It makes the simulation comparison of three starts modes by MATLAB. The results show the motor soft start method based on reactive power compensation can reduce reactive power and improve power factor, while further reduce the starting current.