微电网储能变流器离网/并网切换控制策略研究

doi:10.11985/2019.02.016

电气工程学报 ›› 2019, Vol. 14 ›› Issue (2): 92-96.doi: 10.11985/2019.02.016

扫码分享

微电网储能变流器离网/并网切换控制策略研究

朱作滨,黄绍平,李振兴,肖意南

湖南工程学院电气信息学院湘潭 411100

收稿日期:2018-09-22 出版日期:2019-06-25 发布日期:2019-10-25
作者简介:朱作滨,男,1988年生,硕士研究生。研究方向为微电网制技术。E-mail：913672953@qq.com。|黄绍平,男,1964年生,硕士,教授。研究方向为微电网控制与保护。

Research on Off Grid / Grid Switching Control Strategy of Micro-grid Power Converter System

ZHU Zuobin,HUANG Shaoping,LI Zhenxing,XIAO Yinan

School of Electronics and Information Engineering, Hunan Institute of Engineering, Xiangtan 411100 China

Received:2018-09-22 Online:2019-06-25 Published:2019-10-25

摘要/Abstract

摘要：

针对微电网储能变流器常规切换模式在离网转并网切换时电压波动、合闸冲击电流大等问题,提出了一种基于相位预同步的控制器状态跟随离网/并网切换控制策略。采用V/f控制器的输出跟随P/Q控制器的输出,同时引入相位预同步模块,使得离网时的相位角与并网相位角同步。最后,建立储能变流器离网/并网切换Matlab/Simulink仿真模型。仿真结果表明,该方法能够有效抑制微网储能变流器离网/并网切换过程中电压波动,并降低合闸冲击电流。

关键词: 储能变流器, 离网/并网, 控制器状态跟随, 相位预同步

Abstract:

In order to solve the problems of voltage fluctuation and large switching impulse current in the off-grid to grid switching mode of micro-grid power converter system, a phase synchronization controller based on state following and off grid/grid switching control strategy is proposed. The output of the V/f controller follows the output of the P/Q controller, and the phase synchronization module is introduced to synchronize the phase angle of the off-grid and the grid-connected phase angle. Finally, the Matlab/Simulink simulation model of the storage grid converter is established. Simulation results show that the proposed method can effectively suppress voltage fluctuation and reduce switching impulse current during off grid/grid switching.

Key words: Power converter system, off grid/grid connection, controller state following, phase presynchronization

中图分类号:

TM64

朱作滨,黄绍平,李振兴,肖意南. 微电网储能变流器离网/并网切换控制策略研究[J]. 电气工程学报, 2019, 14(2): 92-96.

ZHU Zuobin,HUANG Shaoping,LI Zhenxing,XIAO Yinan. Research on Off Grid / Grid Switching Control Strategy of Micro-grid Power Converter System[J]. Journal of Electrical Engineering, 2019, 14(2): 92-96.

图/表 10

图1

图2

图3

图4

图5

图6

表

图7

图8

图9

参考文献 13

[1]	李红萍, 杨洪耕, 曾巧燕 , 等. 孤岛型微电网中改进下垂控制策略[J]. 电力系统及其自动化学报, 2017,29(4):49-54.
	Li Hongping, Yang Honggeng, Zeng Qiaoyan , et al. Improving drop control strategy in isolated microgrid[J]. Proceedings of the CSU-EPSA, 2017,29(4):49-54.
[2]	田兵, 毛承雄, 陆继明 , 等. 微网储能变换器并网/离网无缝切换策略仿真[J]. 电力系统及其自动化学报, 2014,26(11):1-6.
	Tian Bing, Mao Chengxiong, Lu Jiming , et al. Simulation of seamless switching strategy for grid connected / off grid micro-grid energy converter[J]. Proceedings of the CSU-EPSA, 2014,26(11):1-6.
[3]	田梁玉, 唐忠, 田晨 , 等. 基于状态跟随器的微电网平滑切换研究[J]. 电网技术, 2017,41(4):1287-1290.
	Tian Liangyu, Tang Zhong, Tian Chen , et al. Research on smooth switching of micro-grid based on state follower[J]. Power System Technology, 2017,41(4):1287-1290.
[4]	陈杰, 陈新, 冯志阳 , 等. 微网系统并网/孤岛运行模式无缝切换控制策略[J]. 中国电机工程学报, 2014,34(19):3089-3097. doi: 10.13334/j.0258-8013.pcsee.2014.19.007
	Chen Jie, Chen Xin, Feng Zhiyang , et al. Seamless switching control strategy for grid connected / islanding operation of micro grid system[J]. Proceedings of the Chinese Society for Electrical Engineering, 2014,34(19):3089-3097. doi: 10.13334/j.0258-8013.pcsee.2014.19.007
[5]	邱麟, 许烈, 郑泽东 , 等. 微电网运行模式平滑切换的控制策略[J]. 电工技术学报, 2014,29(2):171-176.
	Qiu Lin, Xu Lie, Zheng Zedong , et al. Control strategies for smooth switching of micro-grid operation modes[J]. Transactions of China Electrotechnical Society, 2014,29(2):171-176.
[6]	杨苹, 许志荣, 郑群儒 , 等. 微电网平滑切换中变流器的控制策略仿真研究[J]. 可再生能源, 2015,33(11):1625-1631.
	Yang Ping, Xu Zhirong, Zheng Qunru , et al. Simulation of converter control strategy in smooth switching of micro-grid[J]. Renewable Energy, 2015,33(11):1625-1631.
[7]	杨彦杰, 杨康, 邵永明 , 等. 微电网的并离网平滑切换控制策略[J]. 可再生能源, 2018,36(1):36-41.
	Yang Yanjie, Yang Kang, Shao Yongming , et al. Micro-grid’s off grid smooth handover control strategy[J]. Renewable Energy, 2018,36(1):36-41.
[8]	和军平, 晃璞璞, 陶耀东 . 微电网模式平滑切换的多环主从控制策略[J]. 电源学报, 2016,14(2):128-136.
	He Junping, Huang Pupu, Tao Yaodong . Multi-loop master-slave control strategy for smooth switching of micro-grid mode[J]. Journal of Power Supply, 2016,14(2):128-136.
[9]	郭振华, 刘桂英, 粟时平 , 等. 微网运行模式的平滑切换控制方法研究[J]. 电测与仪表, 2016,53(3):62-67
	Guo Zhenhua, Liu Guiying, Su Shiping , et al. Research on smooth switching control method for micro-grid operation mode[J]. Electrical Measurement and Instrumentation, 2016,53(3):62-67.
[10]	沈治 . 基于多Agent系统的微电网运行模式平滑切换[J]. 控制工程, 2017,24(11):2343-2349.
	Shen Zhi . Micro-grid operation mode based on multi-agent system smoothly switching[J]. Control Engineering, 2017,24(11):2343-2349.
[11]	王劲松, 唐成虹, 陈娜 , 等. 基于运行模式识别的微电网并离网平滑切换控制策略[J]. 电力系统自动化, 2015,39(9):185-191.
	Wang Jinsong, Tang Chenghong, Chen Na , et al. A smooth switching control strategy for micro-grid based on operation pattern recognition[J]. Autormation of Electric Power Systems, 2015,39(9):185-191.
[12]	叶海峰, 张炜, 李有亮 , 等. 微电网变流器控制模式切换方法的研究[J]. 电力电子技术, 2017,51(7):109-111.
	Ye Haifeng, Zhang Wei, Li Youliang , et al. Micro-grid converter control mode switching method research[J]. Power Electronical Technology, 2017,51(7):109-111.
[13]	袁晓冬, 楼冠男, 陈亮 , 等. 基于线性自抗扰的微电网平滑切换控制策略[J]. 电网技术, 2017,41(12):3824-3831.
	Yuan Xiaodong, Lou Guannan, Chen Liang , et al. Smooth switching control strategy for micro-grid based on linear auto-disturbance rejection[J]. Power System Technology, 2017,41(12):3824-3831.

参数	值	参数	值
P_ref/kW	-20	L/kH	3
Q_ref/var	0	R/Ω	0.01
U_d_ref/V	311	C/F	3.3
U_q_ref/V	0	负荷/kW	20
C₁/mF	8

微电网储能变流器离网/并网切换控制策略研究

Research on Off Grid / Grid Switching Control Strategy of Micro-grid Power Converter System

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 10

参考文献 13

相关文章 1

编辑推荐

Metrics

本文评价