一种用于消除孤岛微网结构扰动的鲁棒控制策略

doi:10.19595/j.cnki.1000-6753.tces.181500

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摘要分布式发电装置通过固态变压器（SST）接入配电网中,利用通信系统,可形成智能电网。智能电网孤岛运行时,利用其可进行通信的优势,采用主从控制。系统运行过程中,若从机出现故障,切除或修复故障以后重新并入,会改变系统的结构,从而影响系统的稳定性。针对此问题,该文分析了主机模型的不确定性,然后基于混合灵敏度问题设计用于微网主从控制的鲁棒控制器。主机采用所设计的鲁棒控制器为整个系统提供电压支持。通过所设计的鲁棒控制器,增强了系统电压对于从机数量变化带来的扰动的鲁棒性,使得从机数量或者负荷发生改变时整个系统电压幅值和频率仍能保持稳定。最后利用Matlab/Simulink 仿真平台与RTDS硬件在环实验平台进行了仿真和实验验证,结果说明了所提控制器的有效性。

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	孙孝峰
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关键词 ：混合灵敏度, 鲁棒控制, 智能电网, 主从控制

Abstract：The distributed generation devices are operated in parallel by solid state transformer (SST), after utilizeing the communication system, an intelligent microgrid can be formed, the master-slave control can be adopted by utilizeing the advantage of communication when the smart grid is running in islanded condition. During the operation of the system, if the slave is cut off because of the fault or reconnected after repaired, the structure of the system will be changed, which will affect the stability of the system. For dealing with this problem, the uncertainty of the master’s model is analyzed in this paper, and then the robust controller is designed based on the mixed sensitivity for master-slave control of microgrid. The master uses the designed robust controller to supprot voltage for the entire system. Through the designed robust controller, the robustness of the system voltage to the disturbance caused by the change of the number of slaves is enhanced, so that the system voltage amplitude and frequency can be stabilized when the number of slaves or load changes. Finally, the simulation and experimental verification of the Matlab/Simulink simulation platform and the RTDS controller hardware in the loop (CHIL) platformare carried out. The results show the effectiveness of the proposed controller.

Key words： Mixed sensitivity robust control smart grid master-slave control

收稿日期: 2018-09-04

PACS:

TM46

基金资助:国家自然科学基金（51677162）、河北省自然科学基金（E2017203337）和河北省重点研发计划（19214405D）资助项目

通讯作者: 孙孝峰男,1970年生,教授,博士生导师,主要研究方向为变流器拓扑及波形控制技术、功率因数校正与有源滤波技术、新能源变换与组网技术。E-mail：sxf@ysu.edu.cn

作者简介: 马宏磊男,1993 年生,硕士研究生,研究方向为新能源并网及控制技术。 E-mail：mahonglei@greatwall.com.cn

引用本文:

孙孝峰, 马宏磊, 贾磊磊, 李昕. 一种用于消除孤岛微网结构扰动的鲁棒控制策略[J]. 电工技术学报, 2020, 35(11): 2427-2438. Sun Xiaofeng, Ma Honglei, Jia Leilei, Li Xin. A Robust Control Strategy for Eliminating the Structure Disturbance of Islanding Microgrid. Transactions of China Electrotechnical Society, 2020, 35(11): 2427-2438.

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[1] 丛伟, 盛亚如, 咸国富, 等. 基于智能配电终端的分布式供电恢复方法[J]. 电力系统自动化, 2018, 42(15): 77-85.
Cong Wei, Sheng Yaru, Xian Guofu, et al.Distributed power service restoration method based on smart terminal unit[J]. Automation of Electric Power Systems, 2018, 42(15): 77-85.
[2] 肖湘宁, 王鹏, 陈萌. 基于分布式多代理系统的孤岛微电网二次电压控制策略[J]. 电工技术学报, 2018, 33(8): 1894-1900.
Xiao Xiangning, Wang Peng, Chen Meng.Secondary voltage control in an islanded microgrid based on distributed multi-agent system[J]. Transactions of China Electrotechnical Society, 2018, 33(8): 1894-1900.
[3] 李斌, 刘天琪, 李兴源. 分布式电源接入对系统电压稳定性的影响[J]. 电网技术, 2009, 33(3): 84-88.
Li Bin, Liu Tianqi, Li Xingyuan.Impact of distr-ibuted generation on power system voltage stability[J]. Power System Technology, 2009, 33(3): 84-88.
[4] Dolezal J, Sautarius P, Tlusty J, et a1. The effect of dispersed generation on power quality in distribution system[C]//Quality and Security of Electric Power Delivery Systems, CIGRE/IEEE PES International Symposium, Montreal, Canada, 2003: 204-207.
[5] 谢民, 王同文, 徐靖东, 等. 分布式电源对配网继电保护影响及综合改进保护方案[J]. 电力系统保护与控制, 2019, 47(19): 78-84.
Xie Min, Wang Tongwen, Xu Jingdong.Effect of distributed generation on relay protection of distribution network and comprehensive improvement of protection scheme[J]. Power System Protection and Control, 2019, 47(19): 78-84.
[6] Ronan E R, Sudhoff S D, Glover S F, et al.Ap-plication of power electronics to the distribution transformer[C]//Proceedings of the 15th Annual IEEE Applied Power Electronics Conference and Exposition, New Orleans, LA, 2000: 861-867.
[7] 付超, 武承杰, 孙玉巍, 等. 混合模块化直流固态变压器 I:工作原理及稳态特性分析[J]. 电工技术学报, 2019, 34(1): 142-152.
Fu Chao, Wu Chengjie, Sun Yuwei, et al.Hybrid modular DC solid state transformer I: working principle and analysis of steady state characteristics[J]. Transactions of China Electrotechnical Society, 2019, 34(1): 142-152.
[8] 付超, 高振, 孙玉巍, 等. 混合模块化直流固态变压II:动态特性及快速响应控制[J]. 电工技术学报, 2019, 34(14): 2981-2988.
Fu Chao, Gao Zhen, Sun Yuwei, et al.Hybrid modular direct current solid state transformer II: dynamic characteristic and rapid response control[J]. Transactions of China Electrotechnical Soc-iety. 2019, 34(14): 2981-2988.
[9] 张明锐, 宋柏慧, 王佳莹, 等. 基于模型预测控制的固态变压器控制策略研究[J]. 电力系统保护与控制, 2019, 47(1): 129-137.
Zhang Mingrui, Song Baihui, Wang Jiaying et al. Control strategy for solid state transformer based on model predictive control[J]. Power System Protection and Control, 2019, 47(1): 129-137.
[10] 张明锐, 刘金辉, 金鑫. 应用于智能微网的SVPWM固态变压器研究[J]. 电工技术学报, 2012, 27(1): 90-97.
Zhang Mingrui, Liu Jinhui, Jin Xin.Research on the SVPWM solid state transformer applied in smart micro-grid[J]. Transactions of China Electrotechnical Society, 2012, 27(1): 90-97.
[11] Chen Chienliang, Wang Yubin, Lai J S, et al.Designof parallel inverters for smooth mode transfer microgrid applications[J]. IEEE Transactions on Power Electronics, 2010, 25(1): 6-15.
[12] 李钦豪, 张勇军, 陈佳琦, 等. 泛在电力物联网发展形态与挑战[J]. 电力系统自动化, 2020, 44(1): 13-22.
Li Qinhao, Zhang Yongjun, Chen Jiaqi, et al.Development patterns and challenges of ubiquitous power internet of things[J]. Automation of Electric Power Systems, 2020, 44(1): 13-22.
[13] 张项安, 张新昌, 唐云龙, 等. 微电网孤岛运行的自适应主从控制技术研究[J]. 电力系统保护与控制, 2014, 42(2): 81-86.
Zhang Xiangan, Zhang Xinchang, Tang Yunlong, et al.Research on adaptive master-slave control of the islanded micro-grid[J]. Power System Protection and Control, 2014, 42(2): 81-86.
[14] 李砚玲, 杜浩, 杨鸣凯, 等. 基于互质因子分解的感应电能传输系统双自由度H_∞控制[J]. 电工技术学报, 2018, 33(20): 4747-4754.
Li Yanling, Du Hao, Yang Mingkai, et al.Two-degree-of-freedom H_∞ control for inductivepower transfer system based on coprime factor-ization[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4747-4754.
[15] 郑长明, 张加胜, 许睿, 等. Buck 变换器的鲁棒离分滑模控制[J]. 电工技术学报, 2019, 34(20): 4307-4312.
Zheng Changming, Zhang Jiasheng, Xu Rui, et al.Robust discrete integral sliding mode control forbuck converters[J]. Transactions of China Electrotechnical Society, 2019, 34(20): 4307-4312.
[16] 张新昌, 张项安, 孔波利, 等. 微电网的多重主从控制策略研究[J]. 电力系统保护与控制, 2014, 42(9): 20-25.
Zhang Xinchang, Zhang Xiangan, Kong Boli, et al.Research on multiple master-slave control strategy of micro-grid[J]. Power System Protection and Control, 2014, 42(9): 20-25.
[17] 王逸超, 罗安, 金国彬. 微网逆变器的改进鲁棒下垂多环控制[J]. 电工技术学报, 2015, 30(22): 116-123.
Wang Yichao, Luo An, Jin Guobin.Improved robust droop multiple loop control for prallel inverters in microgrid[J]. Transactions of China Electrotechnical Society. 2015, 30(22): 116-123.
[18] 李鹏, 殷梓恒. 基于μ综合方法的光伏发电系统柔性并入微网的鲁棒控制[J]. 中国电机工程学报, 2014, 34(28): 4847-4854.
Li Peng, Yin Ziheng.Robust control on flexible grid-connection of photovoltaic generation system in microgrid based on μ-synthesis method[J]. Proceedings of the CSEE, 2014, 34(28): 4847-4854.
[19] Bababzadeh M, Karimi H.Robust decentralized control forislanded operation of a microgrid[C]// IEEE PES Generl Meeting, Detroit, Michigan, USA, 2011: 24-28.
[20] Babazadeh M, Karimi H.μ-synthesis control for an islanded microgrid with structured uncertainties[C]// 37th Annual Conference on IEEE Industrial Electronics Society, Melbourne, VIC, 2011: 3064-3069.
[21] Tong Yao, Raja A.Variable structure robust voltage regulator design for microgrid master-slave control[C]//2017 IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, 2017: 1532-1539.
[22] 李鹏, 于晓蒙, 赵波. 基于混合灵敏度的交直流混合微网交直流断面电压H_∞鲁棒控制[J]. 中国电机工程学报, 2016, 36(1): 68-75.
Li Peng, Yu Xiaomeng, Zhao Bo.H_∞ robust voltage control of AC-DC interface based on mixed sensitivity in AC-DC hybrid micogrid[J]. Proceedings of the CSEE, 2016, 36(1): 68-75.
[23] 李睿, 王玮, 徐丽杰, 等. 城乡配电网中单相配电系统供电模式研究[J]. 电力系统保护与控制, 2012, 40(14): 127-131, 136.
Li Rui, Wang Wei, Xu Lijie, et al.Researchon power supple mode of single phase distribution system in urban and rural grid[J]. Power System Protection and Control, 2012, 40(14): 127-131, 136.
[24] Huang A Q, Li Wang, Qi Tian, et al.Medium voltage solid state transformers based on 15 kV SiC MOSFET and JBS diode[C]//IECON 2016-42nd Annual Conference of the IEEE Industrial Electronics Society, Florence, 2016: 23-26.
[25] 杨景熙, 刘建强, 张捷频, 等. 基于双有源桥式DC-DC变换器的电力电子牵引变压器的电压平衡控制[J]. 电工技术学报, 2016, 31(增刊1): 119-127.
Yang Jingxi, Liu Jianqiang, Zhang Jiepin, et al.Voltage balance control of a power electronic traction transformer based on dual active bridge DC-DC converters[J]. Transactions of China Electrotechnical Society, 2016, 31(S1): 119-127.
[26] Lee T S, Chiang S J, Chang J M. loop shaping controller designs for the single phase UPS inverters[J]. IEEE Transctions on Power Electrioncs, 2001, 16(4): 473-481.
[27] Yoon C, Wang Xiongfei, Da Silva F M F, et al. Harmonic stability assessment for multi-paralleled gridconnected inverters[C]//International Electronics Application Conference and Exposition, Shanghai, China, 2014: 1098-1103.