Nonlinear coordinated control strategy of large-scale photovoltaic power station with energy storage and synchronous generator excitation

被引：0
|
作者：
Liu S. [1 ]
Li X. [1 ,2 ]
Chen D. [1 ]
机构：
[1] College of Electrical Engineering, Guangxi University, Nanning
[2] Guangxi Key Laboratory of Power System Optimization and Energy Technology, Guangxi University, Nanning
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Energy storage system; Large-scale photovoltaic power station; Multi-objective holographic feedback control; New energy power system; Nonlinear coordinated control;
D O I：
10.16081/j.epae.202003028
中图分类号：
学科分类号：
摘要：
With the capacity and proportion of large-scale photovoltaic power station with energy storage integrated to system increasing, the photovoltaic power station should have certain voltage and power regulation ability to support the stable operation of the grid. The model of differential algebraic system for large-scale photovoltaic power station with energy storage integrated to multi-machine power system is deduced, and a nonlinear coordinated control strategy is proposed to improve the stability level of the system by using the coordination of inverters for photovoltaic power station with energy storage and synchronous gene-rator excitation. The strategy avoids the improper coordination caused by the separate design of different controllers, and can control multiple indicators such as voltage and active power. Due to the application of nonlinear design methods, the controller can be applied in a wide range and not limited to the vicinity of the design point. The simulative results show that the designed controller can effectively improve the vol-tage and power regulation ability of the system and ensure the safe and stable operation of the system. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：92 / 98
页数：6
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