引用本文:吉兴全,陈贺,訾振宁,等.低压有源电力滤波器在高电压等级下的仿真和工程应用[J].电力系统保护与控制,2015,43(22):141-146.
JI Xingquan,CHEN He,ZI Zhenning,et al.Low-voltage active power filter simulation and engineering application at high voltage levels[J].Power System Protection and Control,2015,43(22):141-146
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低压有源电力滤波器在高电压等级下的仿真和工程应用
吉兴全1, 陈贺1, 訾振宁2, 贲宝强2, 刘志鹏3
1.山东科技大学电气与自动化工程学院, 山东 青岛 266590;2.中电普瑞科技有限公司, 北京 100192;3.海南电网公司电力调度控制中心，海南 海口570203
摘要:
提出一种利用低漏抗变压器和并联型低压有源电力滤波器实现对高电压等级补偿的新方法。针对现场工况情况，考虑到变压器的移相特性，采用一种新型数字锁相环技术对原有控制策略进行改进, 实现了通过低压有源滤波器对高电压母线的谐波治理和无功补偿。在不改变低压有源滤波器内部结构的前提下，可以替代高压有源电力滤波器完成补偿任务，降低设备投资。低压有源滤波器电压等级较低，可以降低设备运维难度，并能提高运维人员的安全系数。通过PSCAD/EMTDC数字仿真和现场实物试验，验证了相关设计的有效性和可行性。
关键词:  有源电力滤波器  变压器  电能质量  高压谐波治理  无功补偿
DOI：10.7667/j.issn.1674-3415.2015.22.021
分类号:
基金项目:
Low-voltage active power filter simulation and engineering application at high voltage levels
JI Xingquan1, CHEN He1, ZI Zhenning2, BEN Baoqiang2, LIU Zhipeng3
1.College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China;2.China EPRI Science & Technology Co., Ltd., Beijing 100192, China;3.Dispatching and Control Center of Hainan Power Grid Corporation, Haikou 570203, China
Abstract:
This paper presents a new method which applies low leakage reactance transformer and low voltage shunt active power filter to compensate for the side of high voltage. According to the field condition and the phase-shift characteristic of transformer, the original control strategy is improved by using a new type of digital phase-locked loop technology. The harmonic suppression and reactive power compensation of high voltage bus are realized by low voltage active power filter. Without changing the internal structure of low voltage active power filter, it can accomplish some compensation tasks of high voltage power filter, thereby reducing equipment investment. Due to the low voltage grade of filter, the difficulty of equipment maintenance is reduced, and the safety of the operators is also improved. The PSCAD/EMTDC simulation tool and field test are adopted to verify the effectiveness and feasibility of the proposed approach.
Key words:  active power filter  transformer  power quality  high voltage harmonic control  reactive power compensation
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