基于PQ控制策略的光伏电源对电网电压的影响及改善

分布式光伏发电接入配电网会对系统节点电压产生诸多影响。文章分析了分布式光伏电源接入配电网的PQ（有功/无功功率）控制原理,建立了分布式光伏电源接入配电网典型低压配电线路的模型。对于同一输电线路,先从理论上分析了分布式光伏接入对配电网网络负荷各点电压的影响,然后在Matlab/Simulink环境下验证了理论的正确性。文章详细研究了分布式光伏电源以不同容量接入和在不同位置接入对配电网的影响,并且针对分布式光伏电源接入配电网带来的电能质量问题给出了解决措施和对策。...

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Bibliographic Details
Published in电测与仪表 Vol. 53; no. 15; pp. 1 - 6
Main Author 余谦 孙玉坤 张亮
Format Journal Article
LanguageChinese
Published 江苏大学电气信息工程学院,江苏镇江,212013%江苏大学电气信息工程学院，江苏镇江212013 2016
南京工程学院电力工程学院，南京211167%南京工程学院电力工程学院,南京,211167
Subjects
PQ控制策略
光伏电源
感性无功补偿
电能质量
电能质量
inductive reactive power compensation
PQ控制策略
power quality
感性无功补偿
photovoltaic power
光伏电源
PQ control strategy
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ISSN1001-1390

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Summary:分布式光伏发电接入配电网会对系统节点电压产生诸多影响。文章分析了分布式光伏电源接入配电网的PQ（有功/无功功率）控制原理,建立了分布式光伏电源接入配电网典型低压配电线路的模型。对于同一输电线路,先从理论上分析了分布式光伏接入对配电网网络负荷各点电压的影响,然后在Matlab/Simulink环境下验证了理论的正确性。文章详细研究了分布式光伏电源以不同容量接入和在不同位置接入对配电网的影响,并且针对分布式光伏电源接入配电网带来的电能质量问题给出了解决措施和对策。
Bibliography:photovoltaic power; PQ control strategy; power quality; inductive reactive power compensation
23-1202/TH
The access of distributed PVs to distribution network has various impact on its voltage of each point. This paper analyzes the PQ（ active and reactive power） control principles of distributed PVs integrated into distribution network and establishes the model of typical low-voltage distribution lines with PVs integration. For the same transmission line,firstly,the impact on load voltage of each point with PVs access to distribution network has been analyzed,and then,the correctness of the theory has been verified based on Matlab / Simulink. This paper studies the impact on distribution network with different outputs and different locations of PVs in detail,and then gives the measures and countermeasures of power quality that PVs integrated into grid has brought.
Yu Qian;Sun Yukun;Zhang Liang （ 1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China. 2. College
ISSN:1001-1390