摘要
针对煤矿供电系统中由于非线性负载大量接入而造成的电能质量问题,以及目前广泛应用的集中式电能质量调节装置成本高、体积大的缺陷,提出了一种基于VIENNA型整流器并联实现静止无功补偿的控制方法,以改善煤矿供电系统的电能质量。所提控制方法使得一部分VIENNA整流器提供无功功率,剩余VIENNA整流器用于补偿系统谐波。该方法有效地抑制了VIENNA整流器在补偿无功功率时存在的输入电流过零畸变问题,进而极大地提高了此类整流器在电能质量治理方面的能力。最后通过仿真验证了所提方法的可行性和有效性。
In view of the power quality problems caused by the massive access of non-linear loads in the power supply system of coal mines,and the defects of high cost and large size of the centralized power quality regulation devices widely used at present,a control method based on the parallel connection of VIENNA type rectifiers is proposed to realize static reactive power compensation,to improve the power quality of the power supply system.This method effectively suppresses the input current over-zero distortion problem of VIENNA rectifiers in compensating reactive power,which in turn greatly improves the capability of such rectifiers in power quality management.Finally,the feasibility and effectiveness of the proposed method are verified by simulation.
作者
丁冠华
田长庚
吕嘉琪
程红
王聪
DING Guanhua;TIAN Changgeng;LYU Jiaqi;CHENG Hong;WANG Cong(School of Mechanical Electronic and Information Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)
出处
《煤炭工程》
北大核心
2023年第4期135-140,共6页
Coal Engineering
基金
国家自然科学基金资助项目(51577187)
中央高校基本科研业务费资助项目(2021YJSJD15)。
关键词
VIENNA整流器
无功补偿
输入电流点过零畸变
解耦控制
VIENNA rectifier
reactive power compensation
input current over-zero distortion
decoupled control
