Active damping control strategy in the large-scale photovoltaic plants restraining low-frequency oscillations

被引：0

作者：

Zhou L. ^{[1
]}

Ren W. ^{[1
]}

Yu X. ^{[1
]}

机构：

[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Shapingba District, Chongqing

来源：

| 1600年 / Chinese Society for Electrical Engineering卷 / 36期

关键词：

Active power control; Damping; Large-scale photovoltaic plants; Low-frequency oscillation; Single-machine infinite bus system;

D O I：

10.13334/j.0258-8013.pcsee.2016.11.015

中图分类号：

学科分类号：

摘要：

With the growing of photovoltaic capacity and permeability, which is likely to be a harmful effect on the low-frequency oscillations of the power system, large-scale photovoltaic plants should have the ability to restrain low-frequency oscillations. With the research object of single-machine infinite bus system including large-scale photovoltaic plants, this paper proposed the adaptive damping control strategy using the differential signal of the active power on the wide-area transmission lines to regulate the most active output in the large-scale photovoltaic plants. The strategy can offer active power as much as possible, and ensure smooth switching between low-frequency oscillation suppression mode and maximum power tracking mode. Considering the reactive power-voltage regulating ability in the related standards, the large-scale photovoltaic plants adopt the existing control strategy of power-voltage regulation. Theoretical analysis and simulation results show that: the large-scale photovoltaic plants which adopt the active damping control strategy can significantly improve the system's ability in restraining low-frequency oscillations and guarantee the security and stability of the power system. © 2016 Chin. Soc. for Elec. Eng.

引用

页码：2987 / 2995

页数：8

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