基于虚拟同步发电机双机并联系统的参数自调节优化控制策略

doi:10.19595/j.cnki.1000-6753.tces.L80459

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摘要

针对虚拟同步发电机（VSG）双机并联系统在采用固定的转动惯量及阻尼系数时无法兼顾有功功率振荡和频率波动的问题,该文提出一种参数自调节优化控制策略。首先,建立VSG双机并联系统的小信号模型,分析转动惯量及阻尼系数对输出有功特性的影响;其次,在满足系统动稳态性能的转动惯量及阻尼系数限定取值范围内,根据转子角速度变化率及其偏差量引入了改变转动惯量及阻尼系数的参数自调节优化控制;最后,通过仿真结果验证了所提控制策略的有效性。该策略在保证系统稳定运行的同时,既可抑制VSG并入交流母线过程中的有功振荡,亦可提高频率的支撑能力。

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	任碧莹
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关键词 ：虚拟同步发电机, 双机并联, 小信号模型, 输出有功特性, 参数自调节优化控制

Abstract：

There are the problems of active power oscillation and frequency fluctuation for dual-parallel virtual synchronous generators (VSGs) with the fixed moment of inertia and damping coefficient, therefore, an optimization control strategy of self-adjusting parameters is proposed in this paper. Firstly, a small signal model of the parallel VSG system is established, and the influence of moment of inertia and damping coefficient on output active power is analyzed. Secondly, the parameter optimization control for the self-adjusting inertia and damping coefficient is introduced according to the change rate and the deviation of rotor angular velocity within the restricted range of satisfying the dynamic and steady state performance of the system. Finally, the effectiveness of the proposed control method is verified by simulation results. This method can not only suppress the active power oscillation during the process of VSG connecting with AC bus and ensure the stable operation of the system, but also improve the frequency support ability.

Key words： Virtual synchronous generator dual-parallel system small-signal model active power output characteristics self-adjusting parameter optimization control

收稿日期: 2018-06-30 出版日期: 2019-01-10

PACS:

TM464

基金资助:

国家自然科学基金（51477139）和陕西省自然科学基金（2017JM5075）资助

通讯作者: 邱姣姣女,1993年生,硕士研究生,研究方向为逆变器并联控制技术。E-mail：1181146823@qq.com

作者简介: 任碧莹女,1971年生,博士,副教授,研究方向为微电网发电及其控制技术。E-mail：renby@126.com

引用本文:

任碧莹, 邱姣姣, 刘欢, 孙向东. 基于虚拟同步发电机双机并联系统的参数自调节优化控制策略[J]. 电工技术学报, 2019, 34(1): 128-138. Ren Biying, Qiu Jiaojiao, Liu Huan, Sun Xiangdong. Optimization Control Strategy of Self-Adjusting Parameter Based on Dual-Parallel Virtual Synchronous Generators. Transactions of China Electrotechnical Society, 2019, 34(1): 128-138.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L80459 https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I1/128

[1] Zhang Bo, Yan Xiangwu, Altahir S Y.Control design and small-signal modeling of multi-parallel virtual synchronous generators[C]//IEEE International Conference on Compatibility, Power Electronics and Power Engineering, Cadiz, 2017: 471-476.
[2] 石荣亮, 张兴, 刘芳, 等. 提高光储柴独立微网频率稳定性的虚拟同步发电机控制策略[J]. 电力系统自动化, 2016, 40(22): 77-85.Shi Rongliang, Zhang Xing, Liu Fang, et al. Control strategy of virtual synchronous generator for improving frequency stability of islanded photovoltaic-battery-diesel microgrid[J]. Automation of Electric Power Systems, 2016, 40(22): 77-85.
[3] 石荣亮, 张兴, 刘芳, 等. 虚拟同步发电机及其在多能互补电网中的运行控制策略[J]. 电工技术学报, 2016, 31(20): 170-180.Shi Rongliang, Zhang Xing, Liu Fang, et al. Control technologies of multi-energy complementary microgrid operation based on virtual synchronous generator[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 170-180.
[4] 陈来军, 王任, 郑天文, 等. 基于参数自适应调节的虚拟同步发电机暂态响应优化控制[J]. 中国电机工程学报, 2016, 36(21): 5724-5731.Chen Laijun, Wang Ren, Zheng Tianwen, et al. Optimal control of transient response of virtual synchronous generator based on adaptive parameter adjustment[J]. Proceedings of the CSEE, 2016, 36(21): 5724-5731.
[5] Alipoor J, Miura Y, Ise T.Power system stabilization using virtual synchronous generator with alternating moment of inertia[J]. IEEE Journal of Emerging & Selected Topics in Power Electronics, 2015, 3(2): 451-458.
[6] 温烨婷, 戴瑜兴, 毕大强, 等. 一种电网友好型光储分布式电源控制策略[J]. 中国电机工程学报, 2017, 37(2): 464-475.Wen Yeting, Dai Yuxing, Bi Daqiang, et al. A grid friendly PV/BESS distributed generation control strategy[J]. Proceedings of the CSEE, 2017, 37(2): 464-475.
[7] Zheng Tianwen, Chen Laijun, Wang Ren, et al.Adaptive damping control strategy of virtual synchronous generator for frequency oscillation suppression[C]//12th IET International Conference on AC and DC Power Transmission, Beijing, 2016: 78-79.
[8] Li Dongdong, Zhu Qianwei, Lin Shunfu, et al.A self-adaptive inertia and damping combination control of VSG to support frequency stability[J]. IEEE Transactions on Energy Conversion, 2017, 32(1): 397-398.
[9] Zhang Xing, Mao Fubin, Xu Haizhen, et al.An optimal coordination control strategy of micro-grid inverter and energy storage based on variable virtual inertia and damping of VSG[J]. Chinese Journal of Electrical Engineering, 2017, 3(3): 25-33.
[10] 张波, 颜湘武, 黄毅斌, 等. 虚拟同步机多机并联稳定控制及其惯量匹配方法[J]. 电工技术学报, 2017, 32(10): 42-52. Zhang Bo, Yan Xiangwu, Huang Yibin, et al. Stability control and inertia matching method of multi-parallel virtual synchronous generators[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 42-52.
[11] Bo Liang, Li Yuren, Wei Zequn, et al.Control analysis of inverter parallel system based on virtual synchronous generator[C]//Conference of the IEEE Industrial Electronics Society, Beijing, 2017: 4116-4123.
[12] Zhao Hailin, Yang Qiang, Zeng Hongmei.Multi-loop virtual synchronous generator control of inverter-based DGs under microgrid dynamics[J]. IET Generation Transmission & Distribution, 2017, 11(3): 795-803.
[13] Peng Zishun, Wang Jun, Dai Yuxing, et al.Improved virtual synchronous generator control strategy for seamless switching[C]//2018 IEEE Applied Power Electronics Conference and Exposition, San Antonio, TX, 2018: 1003-1007.
[14] Shi Rongliang, Zhang Xing, Xu Haizheng, et al.Research on the synchronization control strategy for microgrid inverter[C]//Power Electronics and Application Conference and Exposition, Shanghai, 2015: 210-213.
[15] Lin Kewen, Xiao Fei, Jie Guisheng, et al.Control strategy for inverter parallel and parallel with synchronous generator based on virtual synchronous generator theory[C]//2017 36th Chinese Control Conference, Dalian, 2017: 6453-6459.
[16] 宋琼, 张辉, 孙凯, 等. 多微源独立微网中虚拟同步发电机的改进型转动惯量自适应控制[J]. 中国电机工程学报, 2017, 37(2): 412-423.Song Qiong, Zhang Hui, Sun Kai, et al. Improved adaptive control of inertia for virtual synchronous generators in islanding micro-grid with multiple distributed generation units[J]. Proceedings of the CSEE, 2017, 37(2): 412-423.
[17] Alipoor J, Miura Y, Ise T.Stability assessment and optimization methods for microgrid with multiple VSG units[J]. IEEE Transactions on Smart Grid, 2018, 9(2): 1462-1471.
[18] 石荣亮, 张兴, 徐海珍, 等. 光储柴独立微电网中的虚拟同步发电机控制策略[J]. 电工技术学报, 2017, 32(23): 127-139.Dan Rongliang, Zhang Xing, Xu Haizhen, et al. A control strategy for islanded photovoltaic-battery-diesel microgrid based on virtual synchronous generator[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 127-139.
[19] 孟建辉, 王毅, 石新春, 等. 基于虚拟同步发电机的分布式逆变电源控制策略及参数分析[J]. 电工技术学报, 2014, 29(12): 1-10.Meng Jianhui, Wang Yi, Dan Xinchun, et al. Control strategy and parameter analysis of distributed inverters based on VSG[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 1-10.
[20] 杜燕, 苏建徽, 张榴晨, 等. 一种模式自适应的微网调频控制方法[J]. 中国电机工程学报, 2013, 33(19): 67-75.Du Yan, Su Jianhui, Zhang Liuchen, et al. A mode adaptive frequency controller for microgrid[J]. Proceedings of the CSEE, 2013, 33(19): 67-75.
[21] 徐海珍, 张兴, 刘芳, 等. 基于超前滞后环节虚拟惯性的VSG控制策略[J]. 中国电机工程学报, 2017, 37(7): 1918-1926.Xu Haizhen, Zhang Xing, Liu Fang, et al. Virtual synchronous generator control strategy based on lead-lag link virtual inertia[J]. Proceedings of the CSEE, 2017, 37(7): 1918-1926.
[22] 徐海珍, 张兴, 刘芳, 等. 基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略[J]. 电力系统自动化, 2017, 41(3): 96-102.Xu Haizhen, Zhang Xing, Liu Fang, et al. Control strategy of virtual synchronous generator based on differential compensation virtual inertia[J]. Proceedings of the CSEE, 2017, 41(3): 96-102.
[23] 关雅娟, 邬伟扬, 郭小强. 微电网中三相逆变器孤岛运行控制技术[J]. 中国电机工程学报, 2011, 31(33): 52-60.Guan Yajuan, Wu Weiyang, Guo Xiaoqiang. Control strategy for three-phase inverters dominated microgrid in autonomous operation[J]. Proceedings of the CSEE, 2011, 31(33): 52-60.
[24] 李明烜, 王跃, 徐宁一, 等. 基于带通阻尼功率反馈的虚拟同步发电机控制策略[J]. 电工技术学报, 2018, 33(10): 2176-2185.Li Mingxuan, Wang Yue, Xu Ningyi, et al. Virtual synchronous generator control strategy based on bandpass damping power feedback[J]. Transactions of China Electrotechnical Society, 2018, 33(10): 2176-2185.
[25] 程冲, 杨欢, 曾正, 等. 虚拟同步发电机的转子惯量自适应控制方法[J]. 电力系统自动化, 2015, 39(19): 82-89.Cheng Chong, Yang Huan, Zeng Zheng, et al. Rotor inertia adaptive control method of VSG[J]. Automation of Electric Power Systems, 2015, 39(19): 82-89.
[26] 吕志鹏, 盛万兴, 钟庆昌, 等. 虚拟同步发电机及其在微电网中的应用[J]. 中国电机工程学报, 2014, 34(16): 2591-2603.Lü Zhipeng, Sheng Wanxing, Zhong Qingchang, et al. Virtual synchronous generator and its applications in micro-grid[J]. Proceedings of the CSEE, 2014, 34(16): 2591-2603.
[27] 李光琦. 电力系统暂态分析[M]. 北京: 中国电力出版社, 2007.