Variable slope droop control strategy of distributed photovoltaic based on feeder head-end voltage tracking of distribution network

被引：0

作者：

Sun M. ^{[1
]}

Chen B. ^{[1
]}

Zeng W. ^{[1
]}

He W. ^{[1
]}

Huang Y. ^{[1
]}

He H. ^{[1
]}

机构：

[1] State Grid Jiangxi Electric Power Research Institute, Nanchang

来源：

Chen, Bo (orchis1986@126.com) | 1600年 / Electric Power Automation Equipment Press卷 / 40期

关键词：

Distributed photovoltaic; Distribution network line; Head-end voltage tracking control; Line loss; Variable slope droop control; Voltage regulation;

D O I：

10.16081/j.epae.202003001

中图分类号：

学科分类号：

摘要：

The relationship between the reactive power output of distributed PV(PhotoVoltaic) power stations and the voltage of interconnection point is analyzed, and the effect of reactive power absorption of PV power station on line loss of distribution network is studied. Based on the traditional droop control strategy, a variable slope droop control strategy of distributed PV based on feeder head-end voltage tracking of distribution network is proposed, and the architecture and software control logic of the control system are introduced. Based on the improved control strategy, the line voltage level is slightly higher than that under the traditional droop control strategy, but the line loss ratio is closer to that under the optimal line loss control strategy. Taking IEEE 33-bus distribution network system as an example, time series simulation is carried out on OpenDSS, and the proposed control strategy is compared with the traditional droop control strategy and the optimal line loss control strategy. Simulative results show that the improved control strategy can sacrifice less voltage reduction effect to gain more loss reduction benefits, which verifies the correctness and practicability of the proposed control strategy. © 2020, Electric Power Automation Equipment Editorial Department. All right reserved.

引用

页码：107 / 113

页数：6

共 16 条

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