一种UPQC改进补偿量检测法的研究 *

doi:10.11985/2019.01.013

电气工程学报 ›› 2019, Vol. 14 ›› Issue (1): 72-78.doi: 10.11985/2019.01.013

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一种UPQC改进补偿量检测法的研究 ^*

杨钦淞,王久和

北京信息科技大学自动化学院北京 100192

收稿日期:2018-10-16 出版日期:2019-03-25 发布日期:2019-11-01
作者简介:杨钦淞,男,1994年生,硕士研究生,研究方向为电力电子技术在电能质量治理中的应用。E-mail： 1028650284@qq.com|王久和,男,1959年生,博士,教授,博士生导师,研究方向为电能变换器非线性控制、电能质量控制、微电网等领域。E-mail： wjhyhrwm@163.com
基金资助:
*国家自然科学基金项目(51777012);国家自然科学基金项目资助(51477011)

Research on an Improved Detection Method of Unified Power Quality Conditioner

YANG Qinsong,WANG Jiuhe

School of Automation, Beijing Information & Technology University, Beijing 100192 China

Received:2018-10-16 Online:2019-03-25 Published:2019-11-01

摘要/Abstract

摘要：

电压、电流补偿量的准确、实时检测是统一电能质量调节器(UPQC)实现其综合补偿功能的关键环节。针对传统基于瞬时无功功率理论的检测方法存在的一些缺陷,提出一种无锁相环的补偿量综合检测方法。该检测方法省去了锁相环,简化了检测电路;引入平均值理论,避免了因使用低通滤波器而引起的动态响应速度慢以及滤波精度低的问题;并将电压、电流补偿量进行统一检测,以保证整体系统的稳定性。理论分析和计算机仿真结果证明了该检测方法的可行性。

关键词: 统一电能质量调节器, 瞬时无功功率理论, 检测方法, 平均值理论

Abstract:

Accurate and real-time detection of voltage and current is of great importance to unified power quality conditioner (UPQC) in realizing its comprehensive compensation performance. In order to solve the shortcomings of the traditional detection methods based on instantaneous reactive power theory, a unified detection method without phase-locked loop is proposed. The detection circuit is simplified by the removal of the phase-locked loop. The average theory is introduced to avoid the decrease of dynamic response and low filtering precision caused by the use of low pass filter. The stability of the whole system is ensured by the unified detection of voltage and current. The feasibility of the presented method are verified by theoretical analysis and simulation results.

Key words: Unified power quality conditioner, instantaneous reactive power theory, detection method, average theory

中图分类号:

TM732

杨钦淞,王久和. 一种UPQC改进补偿量检测法的研究 ^*[J]. 电气工程学报, 2019, 14(1): 72-78.

YANG Qinsong,WANG Jiuhe. Research on an Improved Detection Method of Unified Power Quality Conditioner[J]. Journal of Electrical Engineering, 2019, 14(1): 72-78.

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一种UPQC改进补偿量检测法的研究 ^*

Research on an Improved Detection Method of Unified Power Quality Conditioner

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