双向H4桥变换器的统一控制  

Unified Control of Bidirectional H4 Bridge Converter

作　　者：鞠禹堰 方宇[1] 汤伟 王笑飞 张犁[2] JU Yuyan;FANG Yu;TANG Wei;WANG Xiaofei;ZHANG Li(College of Information Engineering,Yangzhou University,Yangzhou 225000,China;College of Electrical and Power Engineering,Hohai University,Nanjing 211100,China)

机构地区：[1]扬州大学信息工程学院,扬州225000 [2]河海大学电气与动力工程学院,南京211100

出　　处：《电源学报》2025年第2期48-56,共9页Journal of Power Supply

基　　金：国家自然科学基金资助项目(52177176);扬州市科技计划资助项目——产业前瞻与共性关键技术(YZ2021022)。

摘　　要：针对单相储能逆变器中双向H4桥变换器换路瞬间的时延振荡,提出1种双向H4桥变换器的统一控制方法。该方法利用电压调节器控制变换器的功率流向,基于功率平衡理论推导出1套双向可行的控制参数,同时为实现交流电流无静差跟踪输入电压、增加稳定性,电流内环采用准比例谐振控制器,并采用二阶广义积分器设计锁相环。PSIM仿真和实验均表明该方法能实现整流和有源逆变状态之间的无缝切换,且在启动及状态切换时都有很好的效果,实现单相光伏储能系统中双向AC-DC的稳定控制并获得良好的动态性能。Aimed at the time-delay oscillation of a bidirectional H4 bridge converter in a single-phase energy storage inverter,a unified control method for the bidirectional H4 bridge converter is proposed.In this method,a voltage regulator is used to control the power flow of the converter,and a set of bidirectional feasible control parameters are derived based on the power balance theory.At the same time,in order to realize AC current tracking input voltage without static error and increase the stability,the current inner-loop adopts a quasi proportional resonance controller,and a second-order generalized integrator is used to design a phase-locked loop.PSIM simulation and experimental results show that the proposed method can realize seamless switching between the rectification and active inverter modes,and it also has a good effect in the startup and switching between different modes.Therefore,it can realize stable control of the bidirectional AC-DC bridge converter in a single-phase photovoltaic energy storage system and obtain a good dynamic performance.

关 键 词：光伏储能逆变器 双闭环控制 统一控制 无缝切换 

分 类 号：TM46[电气工程—电器]