摘要
四象限变频器采用脉宽调制(邢Ⅲ)整流器可控整流替代了传统变频器不控整流方式,具有能量双向流动,网侧电流谐波和无功含量小等优点。采用基于扩展的卡尔曼滤波器(EKF)观测出负载电流,然后进行负载电流前馈补偿的控制策略,仿真和实验结果表明所提控制策略能够提高四象限变频器抗负载扰动能力,具有可行性和有效性。
The pulse width modulation（PWM） rectifier is used to replace the traditional uncontrolled rectifier in the four-quadrant inverter, which can realize the two-way energy flowing, small grid harmonic currents and reactive content, and so on.A new control method based on the load current feed forward compensation with the extended Kalman fiher（EKF） is proposed, which is confirmed to improve the anti-load disturbance capacity of the four-quadrant inverter.
出处
《电力电子技术》
CSCD
北大核心
2015年第8期100-102,共3页
Power Electronics
