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基于三重化DC/DC变换器的光伏直流微网控制研究
引用本文:张伟伟,童亦斌,杨捷,杨涛.基于三重化DC/DC变换器的光伏直流微网控制研究[J].变流技术与电力牵引,2014(3):52-55.
作者姓名:张伟伟  童亦斌  杨捷  杨涛
作者单位:北京交通大学国家能源主动配电网技术研发中心;
基金项目:国家高技术研究发展计划(863计划)资助项目(2011AA05A306)
摘    要:以带有蓄电池单元的独立光伏发电直流微网为研究对象,采用一种三重化DC/DC模块作为接口变换器,提出电压外环、电流内环的双闭环来控制接口变换器。仿真与实验结果表明,三重化DC/DC模块能有效地减小电流纹渡和电流谐波,实现光伏阵列最大功率点的跟踪以及蓄电池单元能量双向流动,稳定了直流母线电压。

关 键 词:光伏发电  直流微网  三重化DC  DC变换器  控制策略

Research on Control Strategy of Photovoltaic Generation in DC Microgrid Based on Three-phase Interleaved DC/DC Converter
ZHANG Wei-wei,TONG Yi-bin,YANG Jie,YANG Tao.Research on Control Strategy of Photovoltaic Generation in DC Microgrid Based on Three-phase Interleaved DC/DC Converter[J].Converter Technology & Electric Traction,2014(3):52-55.
Authors:ZHANG Wei-wei  TONG Yi-bin  YANG Jie  YANG Tao
Institution:(National Active Distribution Network Technology Research Center (NANTEC), Beijing Jiaotong University, Beijing 100044, China)
Abstract:Based on an independent photovoltaic generation system in DC microgrid with batteries, a three-phase interleaved DC/DC converter was used as the interface converter. The inner current loop and outer voltage loop were decoupled to control the interface converter. Simulative and experimental results show that the three-phase interleaved DC/DC converter can decrease ripple current and harmonic current effectively, realize MPPT tracking and energy bi-directional flow of the batteries, and stabilize DC bus voltage.
Keywords:photovoltaic generation  DC microgrid  three-phase interleaved DC/DC converter  control strategy
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