CAJ | 학술논문

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。
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.