摘要
有源电力滤波器(APF)在煤矿电网中普遍应用以进行谐波治理。传统APF采用二阶低通滤波器进行谐波检测,并通过滞环控制或三角载波控制策略输出补偿电流。然而,随着非线性负载的大量接入,常规矿用APF难以有效治理煤矿电网中的谐波污染。为进一步提高矿用APF的谐波抑制能力,将小波变换应用于低通滤波器以提高谐波检测性能,同时引入空间矢量脉宽调制(SVPWM)控制策略来控制逆变器输出以提高补偿电流输出能力。仿真分析验证了所提方法的有效性。
Active power filter(APF)is widely used in coal mine power grid for harmonic control.The traditional APF uses a second-order low-pass filter for harmonic detection,and outputs compensation current through hysteresis control or triangular carrier control strategy.However,with the access of a large number of nonlinear loads,it is difficult for conventional mining APF to effectively control harmonic pollution in coal mine power grid.In order to further improve the harmonic suppression ability of mining APF,applied wavelet transform to low-pass filter to improve harmonic detection performance,and introduced space vector pulse width modulation(SVPWM)control strategy to control inverter output to improve compensation current output ability.The simulation analysis verified the effectiveness of the proposed method.
作者
张会峰
张德正
程卫健
杜双涛
Zhang Huifeng;Zhang Dezheng;Cheng Weijian;Du Shuangtao(Shanxi Tiandi Wangpo Coal Industry Co.,Ltd.,Jincheng 048000,China;CCTEG Changzhou Research Institute Co.,Ltd.,Changzhou 213015,China;Tiandi(Changzhou)Automation Co.,Ltd.,Changzhou 213015,China)
出处
《煤矿机械》
2023年第9期198-200,共3页
Coal Mine Machinery
基金
天地(常州)自动化股份有限公司研发项目(2021GY1002,2021GY1003)。
