基于Buck交-交斩波器的无功补偿器拓扑与控制方法设计

WU Wei; XIE Shaojun; TANG Yu; XU Jinming

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基于Buck交-交斩波器的无功补偿器拓扑与控制方法设计

更新时间：2025-08-13

- 基于Buck交-交斩波器的无功补偿器拓扑与控制方法设计
- Automation of Electric Power Systems Vol. 37, Issue 5, Pages: 124-129(2013)
- 作者机构：
  
  南京航空航天大学自动化学院,江苏省,南京市,210016
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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WU Wei, XIE Shaojun, TANG Yu, et al. [J]. Automation of electric power systems, 2013, 37(5): 124-129.
DOI：

WU Wei, XIE Shaojun, TANG Yu, et al. [J]. Automation of electric power systems, 2013, 37(5): 124-129. DOI：

摘要

首先介绍了一种新的交流斩波型无功补偿器，无需直流储能环节，系统可靠性得到加强。以 Buck型交流斩波无功补偿器为对象，分析了交流斩波无功补偿的基本原理和补偿特性，推导出占空比与补偿电流之间的关系，建立了系统分析模型。在此基础上，提出了基于广义积分的直接电流控制策略，并给出了参数设计准则，最后进行了仿真和实验验证。仿真和实验结果表明，基于直接电流控制的Buck型交流斩波无功补偿器可以实现对网侧无功功率的实时补偿。

Abstract

A new AC-AC chopper based var compensator is proposed.It does not require the DC-link energy storage and can effectively enhance the system reliability.The basic principles and compensation characteristics of the Buck AC/AC chopper based var compensator are described，the relationship between duty ratio and compensation current is derived，and the system analysis model is developed.A new direct current control method based on the second order generalized integral is proposed for the var compensator with detailed design criteria as well.The experimental and simulation results demonstrate that the real- time compensation of reactive power in grid side can be realized by this var compensator based on a direct current controlled Buck AC/AC chopper.

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