基于全站控制的光伏场快速一次调频控制系统研究

doi:10.11985/2020.02.014

电气工程学报 ›› 2020, Vol. 15 ›› Issue (2): 98-103.doi: 10.11985/2020.02.014

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基于全站控制的光伏场快速一次调频控制系统研究

郑有余¹(),赵玉²()

1.南京爱浦克施电气有限公司南京 211800;
2.云南民族大学电气信息工程学院昆明 650500

收稿日期:2019-12-09 出版日期:2020-06-25 发布日期:2020-07-31
通讯作者: 赵玉 E-mail:6987570@qq.com;734431651@qq.com
作者简介:郑有余,男,1978年生,工程师。主要研究方向为新能源发电并网技术,智能电网等。E-mail:6987570@qq.com

Research on the Fast Primary Frequency Modulation Control System of Photovoltaic Field Based on Total Station Control

ZHENG Youyu¹(),ZHAO Yu²()

1. Nanjing APCS Electric Co., Ltd., Nanjing 211800 China;
2. School of Electrical and Information Technology, Yunnan Minzu University, Kunming 650500 China

Received:2019-12-09 Online:2020-06-25 Published:2020-07-31
Contact: ZHAO Yu E-mail:6987570@qq.com;734431651@qq.com

摘要/Abstract

摘要：

大规模光伏发电并网可能导致系统调频能力不足,而并网逆变器调节速度快,通过改变光伏并网系统的功率控制方式,可使其具有一次调频能力。为此,提出一种基于全站控制的整套改造方案,采用三相同步拟合测频算法实现高精度测频,在光伏电站自动发电控制(Automatic generation control,AGC)系统和光伏电站有功-频率下垂控制特性的基础上,对现有光伏场站参与系统一次调频功率控制策略进行了改进。试验结果表明,通过对逆变器的全站控制,能够快速地响应频率的跌落和增加,减小扰动发生后频率的变化。

关键词: 光伏电站, 有功-频率下垂控制, AGC, 逆变器

Abstract:

Large-scale grid-connected photovoltaic (PV) power generation may lead to the lack of system FM capability, while grid-connected inverter has a fast regulation speed. By changing the power control mode of grid-connected photovoltaic power generation system, the system can be equipped with primary FM capability. For this purpose, a reconstruction of complete set of scheme based on total control is proposed and the three-phase synchronous fitting algorithm is used to achieve high precision of frequency measurement, on the basis of the photovoltaic power station automatic generation control (AGC) systems and photovoltaic power station active-frequency droop control characteristic, frequency modulation power control strategy of the existing operations involved in the photovoltaic system is improved. The experimental results show that the total station control of the inverter can quickly respond to the drop and increase of frequency and reduce the change of frequency after disturbance.

Key words: Photovoltaic power station, active power-frequency droop control, AGC, inverter

中图分类号:

TM470

郑有余, 赵玉. 基于全站控制的光伏场快速一次调频控制系统研究[J]. 电气工程学报, 2020, 15(2): 98-103.

ZHENG Youyu, ZHAO Yu. Research on the Fast Primary Frequency Modulation Control System of Photovoltaic Field Based on Total Station Control[J]. Journal of Electrical Engineering, 2020, 15(2): 98-103.

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基于全站控制的光伏场快速一次调频控制系统研究

Research on the Fast Primary Frequency Modulation Control System of Photovoltaic Field Based on Total Station Control

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