基于配电网边缘智能控制的单相全桥三电平户用电能路由器设计  

Design of Single-phase Full-bridge Three-level Household Power Router Based on Intelligent Control at the Edge of Distribution Network

作　　者：戴新晨 强丹丹 李伟伟 张学广[3] DAI Xinchen;QIANG Dandan;LI Weiwei;ZHANG Xueguang(School of Automation,Nanjing University of Information Engineering,Nanjing 210044,China;School of Automation,Wuxi College,Wuxi 214105,China;School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]南京信息工程大学自动化学院,南京210044 [2]无锡学院自动化学院,无锡214105 [3]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《自动化与仪表》2025年第2期14-17,共4页Automation & Instrumentation

基　　金：国家自然科学基金项目(51977046);无锡学院引进人才科研启动专项经费资助项目(2022r021)。

摘　　要：针对传统户用电能路由器易受电网电压变化影响造成用户端电能质量差的问题,该文提出了一种配电网边缘智能控制的单相全桥三电平户用电能路由器。所提出的电能路由器结构由整流器-直流链路-逆变器组成,直流链路上装有光伏/电池储能系统。这种电能路由器采用两级三端架构,利用直流端口作为缓冲,从而隔离了电网电压波动对负载的干扰,以及负载注入电网的谐波。另一方面可以灵活地利用直流侧光伏或储能装置,为电网提供低压治理和无功支撑。在极端条件电网停电时,则能从直流端直接为用户负载供电,从而提高供电可靠性。同时采用一种电网边缘智能控制方法,通过功率因素控制来调节有功/无功功率输出,并利用电能路由器的双向特性,通过负载电压进行反馈调节,可控制输入电压大小以满足用户需求。仿真结果验证了该文所提电能路由器可以实现能量双向流动,调节用户端电压并能够对电网侧提供无功功率支撑。To solve the problem that the power quality of the user end is unstable due to the influence of the power grid voltage change of the traditional household power router,this paper proposes a single-phase full-bridge three-level household power router with intelligent control at the edge of the distribution network.The proposed energy router structure consists of a rectifier-DC link-inverter,and a photovoltaic/battery energy storage system is installed on the DC link.This kind of power router adopts a two-stage and three-terminal architecture,using the DC port as a buffer,to isolate the interference of the grid voltage fluctuation to the load,as well as the harmonics of the load injected into the grid.On the other hand,DC-side photovoltaic or energy storage devices can be flexibly used to provide lowvoltage treatment and reactive power support for the power grid.In the event of a power outage under extreme conditions,the power supply can be supplied directly to the user load from the DC end,thus improving the reliability of power supply.At the same time,an intelligent control method at the edge of the power grid is adopted to control through the power factor,adjust the active/reactive power output,and use the bidirectional characteristics of the electric energy router to carry out feedback adjustment through the load voltage,and the input voltage can be controlled to meet the needs of users.The simulation results verify that the proposed power router can realize the bidirectional flow of energy,regulate the voltage of the user side,and provide reactive power support for the grid side.

关 键 词：电能路由器 单相三电平 电压无功控制(VVC) 

分 类 号：TM464[电气工程—电器]