适用于模块化级联光伏发电直流并网系统的均压策略

NING Guangfu

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适用于模块化级联光伏发电直流并网系统的均压策略

更新时间：2025-08-13

- 适用于模块化级联光伏发电直流并网系统的均压策略
- Automation of Electric Power Systems Vol. 40, Issue 19, Pages: 66-72(2016)
- 作者机构：
  
  东南大学电气工程学院,江苏省,南京市,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2016
- 稿件说明：
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NING Guangfu. [J]. Automation of electric power systems, 2016, 40(19): 66-72.
DOI：

NING Guangfu. [J]. Automation of electric power systems, 2016, 40(19): 66-72. DOI：

摘要

光伏发电升压汇集接入直流电网是光伏发电发展的一个重要方向

提出了一种适用于模块化级联的光伏发电直流并网系统结构及其各模块电容电压均衡控制策略

并重点分析了该策略中输入功率比重前馈机制的原理。随后

在PLECS环境中搭建了7个模块级联的仿真模型

仿真结果验证了该控制策略的有效性和可行性。最后

通过一个含有3个模块的硬件平台对其进行了实验验证

实验结果表明了所提出的控制策略具有控制简单、易于实现、可靠性高、无需额外传感器等优点。

Abstract

Photovoltaic power generation accessing the direct current(DC)grid is an important development orientation of the photovoltaic power. A scheme for the DC grid-connected photovoltaic power generation system with a novel capacitor voltage balancing control strategy is proposed by focusing on analysis of the input power ratio feedforward. Then

with the PLECS software

a simulation model of seven modules is built with the effectiveness and feasibility of the proposed control strategy verified by simulation results. Finally

a hardware platform containing three modules is set up to show the proposed control strategy is simple to control

easy to implement

highly reliable

and without additional sensors. This work is supported by National Natural Science Foundation of China(No. 51307024)

Fundamental Research Funds for the Central Universities(No. 2242016K41005)and State Grid Corporation of China(No. DG71-15-039).

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