微网中逆变器并联控制功率分配的研究 *

doi:10.11985/2020.04.006

电气工程学报 ›› 2020, Vol. 15 ›› Issue (4): 52-58.doi: 10.11985/2020.04.006

扫码分享

微网中逆变器并联控制功率分配的研究 ^*

赵凯(), 由蕤(), 韩东旭(), 刘鑫()

青岛大学电气工程学院青岛 266071

收稿日期:2020-06-15 修回日期:2020-11-19 出版日期:2020-12-25 发布日期:2020-12-25
通讯作者: 由蕤 E-mail:1666796952@qq.com;yourui1984@163.com;1035182192@qq.com;1602450383@qq.com
作者简介:由蕤,男,1984年生,博士,副教授。主要研究方向为分布式发电与微电网。E-mail： yourui1984@163.com
赵凯,女,1995年生,硕士研究生。主要研究方向为微网逆变器控制。E-mail： 1666796952@qq.com
韩东旭,男,1994年,硕士研究生。主要研究方向为交直流微电网的控制。E-mail： 1035182192@qq.com
刘鑫,男,1993年,硕士研究生。主要研究方向为矩阵变换器在海上风电中的应用。E-mail： 1602450383@qq.com
基金资助:
* 山东省重点研发计划(重大科技创新工程)(2019JZZY010902);电力系统国家重点实验室资助课题资助项目(SKLD20M18)

Research on Power Distribution for Parallel Inverters in Micro-grids

ZHAO Kai(), YOU Rui(), HAN Dongxu(), LIU Xin()

College of Electrical Engineering, Qingdao University, Qingdao 266071

Received:2020-06-15 Revised:2020-11-19 Online:2020-12-25 Published:2020-12-25
Contact: YOU Rui E-mail:1666796952@qq.com;yourui1984@163.com;1035182192@qq.com;1602450383@qq.com

摘要/Abstract

摘要：

微网中的分布式电源以逆变器为接口接入电网,随着可再生能源接入比例的增加,逆变器的并联运行控制成为一项关键技术,此时无需通信互联线的下垂控制方法在微网系统中得到了广泛应用。针对逆变器并联控制系统,分析了传统下垂控制方法的基本原理,在该控制方法下由于输电线路的阻抗不同,导致无功功率的精确分配受到影响。为此提出一种基于(Proportional integral,PI)调节器的改进下垂控制方法。利用Matlab/Simulink软件进行仿真,仿真结果验证了所提控制方法的正确性和有效性。

关键词: 改进下垂控制, 并联运行, 逆变器, 功率分配

Abstract:

An inverter is the interface of the distributed generation in micro-grids. With the increasing proportion of renewable energy, the operation of inverters in parallel becomes a key technology. In this case, the droop control method without communication interconnection is widely used in micro-grids. For the inverter parallel control system, the basic principle of traditional droop control method is analyzed. Because of the different impedances of the transmission line, the accurate distribution of reactive power is affected by the control method. Therefore, an improved droop control method based on PI regulator is presented. Matlab/Simulink simulation software is used to verify the correctness and effectiveness of the proposed control method.

Key words: Improved droop control, parallel operation, inverter, power distribution

中图分类号:

TM464

赵凯, 由蕤, 韩东旭, 刘鑫. 微网中逆变器并联控制功率分配的研究 ^*[J]. 电气工程学报, 2020, 15(4): 52-58.

ZHAO Kai, YOU Rui, HAN Dongxu, LIU Xin. Research on Power Distribution for Parallel Inverters in Micro-grids[J]. Journal of Electrical Engineering, 2020, 15(4): 52-58.

图/表 20

图1

图2

图3

图4

图5

图6

图7

图8

图9

图10

图11

图12

图13

图14

图15

图16

图17

图18

图19

图20

参考文献 20

[1]	陈颖, 江曦源, 于智同, 等. 区域配电网内分布式电源和负载联盟交易模式设计和分析[J]. 电力系统自动化, 2017,41(14):78-86.
	CHEN Ying, JIANG Xiyuan, YU Zhitong, et al. Coalition trading mode design and analysis for distributed generators and loads in regional distribution network[J]. Automation of Electric Power Systems, 2017,41(14):78-86.
[2]	刘梦, 杨作梁. 考虑网架结构和分布式电源的主动配电系统双层规划[J]. 电测与仪表, 2018,55(14):46-50.
	LIU Meng, YANG Zuoliang. Bi-level programming of active distribution system considering grid structure and distributed generation[J]. Electrical Measurement & Instrumentation, 2018,55(14):46-50.
[3]	张敬安, 王雷涛, 王鹏. 交直流混合配电网电能质量综合检测和补偿方法[J]. 电气工程学报, 2018,13(9):38-43.
	ZHANG Jingan, WANG Leitao, WANG Peng. Power quality detection and compensation method of AC/DC hybrid distribution network[J]. Journal of Electrical Engineering, 2018,13(9):38-43.
[4]	林永君, 王玉芳, 刘卫亮, 等. 微电网逆变器下垂控制技术研究[J]. 国网技术学院学报, 2015,18(3):11-16.
	LIN Yongjun, WANG Yufang, LIU Weiliang, et al. Technical research on the droop control of micro-grid inverter[J]. Journal of State Grid Technology College, 2015,18(3):11-16.
[5]	BAYHAN S, ABU-RUB H. A simple control technique for distributed generations in grid-connected and islanded modes[C]// IEEE 27th International Symposium on Industrial Electronics(ISIE),Cairns,QLD, 2018: 1237-1242.
[6]	BAO D, QIN G, CAI J, et al. A precoding OFDM MIMO radar coexisting with a communication system[J]. IEEE Transactions on Aerospace and Electronic Systems, 2019,55(4):1864-1877. doi: 10.1109/TAES.7
[7]	MILIOUDIS A N, SYRANIDIS K N, ANDREOU G T, et al. Modeling of medium-voltage power-line communication systems noise levels[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013,28(4):2004-2013.
[8]	MILIOUDIS A N, ANDREOU G T, LABRIDIS D P. Detection and location of high impedance faults in multi-conductor overhead distribution lines using power line communication devices[J]. IEEE Transactions on Smart Grid, 2015,6(2):894-902. doi: 10.1109/TSG.2014.2365855
[9]	曹文远, 韩民晓, 谢文强, 等. 交直流配电网逆变器并联控制技术研究现状分析[J]. 电工技术学报, 2019,34(20):4226-4241.
	CAO Wenyuan, HAN Minxiao, XIE Wenqiang, et al. Analysis on research status of parallel inverters control technologies for AC/DC distribution network[J]. Transactions of China Electro-technical Society, 2019,34(20):4226-4241.
[10]	施云杰, 冯夏云, 汪飞, 等. 下垂控制微电网的无功补偿失稳机理及抑制对策[J]. 电气工程学报, 2020,15(1):29-35.
	SHI Yunjie, FENG Xiayun, WANG Fei, et al. Instability mechanism and control measures of reactive compensation in islanded micro-grid based on droop control[J]. Journal of Electrical Engineering, 2020,15(1):29-35.
[11]	张芮漩, 周念成, 孟潇潇. 基于旋转坐标变换的孤岛微网群广义下垂控制策略[J]. 电气工程学报, 2020,15(1):23-28.
	ZHANG Ruixuan, ZHOU Niancheng, MENG Xiaoxiao. Generalized sag control strategy for isolated island microgrid clusters based on rotation coordinate transformation[J]. Journal of Electrical Engineering, 2020,15(1):23-28.
[12]	赵晋斌, 刘海先, 屈克庆, 等. 带有虚拟阻抗的逆变器并联改进型下垂控制[J]. 上海电力学院学报, 2015,31(2):101-105.
	ZHAO Jinbin, LIU Haixian, QU Keqing, et al. An improved droop control strategy based on virtual impedance in inverter parallel system[J]. Journal of Shanghai University of Electric Power, 2015,31(2):101-105.
[13]	刘东奇, 韩民晓, 谢文强, 等. 基于虚拟电阻的微电网孤岛运行控制策略[J]. 电力电子技术, 2018,52(9):10-13.
	LIU Dongqi, HAN Minxiao, XIE Wenqiang, et al. Control strategy for island micro-grid based on virtual resistance[J]. Power Electronics, 2018,52(9):10-13.
[14]	ZHANG G, JIN Z, LIN N, et al. A novel control strategy for parallel-connected converters in low voltage micro-grid[C]// IEEE Conference and Expo. Transportation Electrification Asia-Pacific(ITEC Asia- Pacific),Beijing, 2014: 1-6.
[15]	张海波, 袁志昌, 赵宇明, 等. VSC-MTDC系统变截距直流电压下垂控制策略[J]. 电力自动化设备, 2016,36(10):60-64.
	ZHANG Haibo, YUAN Zhichang, ZHAO Yuming, et al. Variable intercept DC-voltage droop control for VSC-MTDC system[J]. Electric Power Automation Equipment, 2016,36(10):60-64.
[16]	YOU Z, LIU J, ZHANG X, et al. A decoupled and adaptive power sharing strategy based on droop method for parallel inverters[C]// IEEE Applied Power Electronics Conference and Exposition-APEC 2014,Fort Worth,TX, 2014, 1153-1157.
[17]	梁海峰, 郑灿, 高亚静, 等. 微网改进下垂控制策略研究[J]. 中国电机工程学报, 2017,347(17):4901-4910.
	LIANG Haifeng, ZHENG Can, GAO Yajing, et al. Research on improved droop control strategy for micro-grid[J]. Proceedings of the CSEE, 2017,347(17):4901-4910.
[18]	邢作霞, 芦彦东, 董焕宝. 基于虚拟阻抗的变阻感比低压微电网功率控制策略研究[J]. 电气工程学报, 2018,13(5):14-20. doi: 10.11985/2018.05.003
	XING Zuoxia, LU Yandong, DONG Huanbao. Power decoupling control strategy of variable impedance ratio based on virtual impedance for micro-grid[J]. Journal of Electrical Engineering, 2018,13(5):14-20.
[19]	王克, 王泽忠, 柴建云, 等. 同步控制逆变电源并网预同步过程分析[J]. 电力系统自动化, 2015,39(12):152-158.
	WANG Ke, WANG Zezhong, CHAI Jianyun, et al. Analysis of grid-connecting pre-synchronized process for synchronously controlled inverter power source[J]. Automation of Electric Power Systems, 2015,39(12):152-158.
[20]	谢东, 臧大进, 高鹏, 等. 微网逆变电源的协调控制策略[J]. 控制工程, 2018,25(5):752-759.
	XIE Dong, ZANG Dajin, GAO Peng, et al. Coordinated control strategy of inverter in micro-grid[J]. Control Engineering of China, 2018,25(5):752-759.

微网中逆变器并联控制功率分配的研究 ^*

Research on Power Distribution for Parallel Inverters in Micro-grids

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 20

参考文献 20

相关文章 15

编辑推荐

Metrics

本文评价

[1]	郑有余, 赵玉. 基于全站控制的光伏场快速一次调频控制系统研究[J]. 电气工程学报, 2020, 15(2): 98-103.
[2]	范必双,魏国强,李泽扬,姚淦洲. 基于动态虚拟复阻抗的微网下垂控制策略[J]. 电气工程学报, 2020, 15(1): 48-54.
[3]	刘辉, 李训明, 王伟达, 韩立金, 闫正军. 基于最优功率分配因子的插电式混合动力汽车实时能量管理策略研究[J]. 机械工程学报, 2019, 55(4): 91-101.
[4]	郝晓弘,胡开伟,马明,周强,汪宁渤. 远距离交直流混联输电系统频率稳定性研究 ^*[J]. 电气工程学报, 2019, 14(4): 10-17.
[5]	张兵锋,王铁军,冯进. 一种谐波注入式逆变装置研究[J]. 电气工程学报, 2019, 14(3): 90-96.
[6]	闫涵,吕建国,丁金勇,马丙辉,阎亦然. 非理想电网下NPC三电平逆变器多目标模型预测控制方法研究 ^*[J]. 电气工程学报, 2019, 14(3): 23-32.
[7]	于文倩,同向前,燕聪,焦攀. 提高弱电网下LCL型并网逆变器稳定性的改进电网电压前馈策略 ^*[J]. 电气工程学报, 2019, 14(2): 79-85.
[8]	陈冰,朱鸿章,陶旋,吴军. 基于电流反馈的同步逆变器功率解耦控制策略[J]. 电气工程学报, 2018, 13(8): 18-25.
[9]	吕长吉,张炳义,冯桂宏. 基于转矩平衡的自适应电子差速控制策略研究[J]. 电气工程学报, 2018, 13(8): 26-31.
[10]	陈薇,赵强. 基于虚拟阻抗的逆变器并联控制策略的研究[J]. 电气工程学报, 2018, 13(8): 7-11.
[11]	刘虹,厉虹. 改进的感应电机直接转矩控制系统[J]. 电气工程学报, 2018, 13(4): 11-17.
[12]	杨浩,吕雪峰,潘浩明. 两电平电压型逆变器共模电压抑制策略[J]. 电气工程学报, 2018, 13(4): 26-31.
[13]	程谆,张阳,邓木生. Z源并网风力发电系统机侧谐波抑制[J]. 电气工程学报, 2018, 13(3): 17-26.
[14]	刘邓,张丹,周怡,杨雪蛟,陈苏声. 集中式与集散式光伏发电系统MPPT的仿真与对比[J]. 电气工程学报, 2018, 13(10): 41-46.
[15]	管月,李磊,师贺,马爱华. 基于SVPWM技术的单相多电平逆变器均压策略研究[J]. 电气工程学报, 2017, 12(5): 76-81.