基于改进虚拟磁链的储能变流器直接功率控制  

Control Strategy for Battery Energy Storage System Converter Based on Optimized Virtual Flux Control

作　　者：栾新宇[1] 樊波[1] 张瑞 刘晓卫[1] 边岗莹[1] LUAN Xin-yu;FAN Bo;ZHANG Rui;LIU Xiao-wei;BIAN Gang-ying(School of Air and Missile Defense,AFEU,Xi’an 710051,China;Unit 94943 of PLA,Fuzhou 350026,China)

机构地区：[1]空军工程大学防空反导学院,西安710051 [2]解放军94943部队,福州350026

出　　处：《火力与指挥控制》2018年第10期93-98,共6页Fire Control & Command Control

基　　金：航空科学基金资助项目(20145596026)。

摘　　要：传统整流器的接入会给电网带来大量谐波和无功污染,为了削减电网侧的电压谐波分量,提高储能电源充电系统的功率因数,提出一种基于改进虚拟磁链的储能变流器直接功率控制方法。根据瞬时功率理论,建立三相电压型整流器(VSR)的功率数学模型,在虚拟磁链定向的直接功率控制(Virtual Flux Oriented-Direct Power Control,VFO-DPC)的基础上,对虚拟磁链观测器进行优化,在VFO-DPC系统中引入空间矢量调制模块取代开关表,通过空间矢量脉宽调制(Space Vector Pulse Width Modulation,SVPWM)算法构建开关频率固定的VFO-DPC-SVM控制系统来解决传统DPC控制开关频率不固定、采样频率要求高的缺点。仿真实验结果表明,采用改进控制方法的储能变流器具有良好的动态特性和更强的鲁棒性,输出的直流电压稳定,系统实现单位功率因数运行。Access to the traditional rectifier brings a large number of harmonics and reactive voltage harmonic pollution,in order to reduce the voltage harmonic component,to improve the energy storage power supply charging system power factor,an improved virtual flux storage direct power converter control method is proposed.According to the instantaneous power theory,the mathematical model of three-phase VSR is established.Based on virtual flux oriented direct power control(VFODPC),virtual observer is optimized.The introduction of space vector modulation module in VFO-DPC system to replace the switching table,constructing fixed switching frequency VFO-DPC-SVM control system by the SVPWM algorithm to solve the shortcomings of traditional DPC switching frequency is not fixed,high sampling frequency.

关 键 词：虚拟磁链 整流 直接功率控制 SVM 

分 类 号：TM464[电气工程—电器]