基于最小能量补偿法的串联电容耦合型动态电压恢复器运行特性分析

doi:10.19595/j.cnki.1000-6753.tces.190981

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Abstract When the traditional dynamic voltage restorer (DVR) adopts the in-phase compensation method to solve the voltage sag problem, the output voltage amplitude of the inverter is small but the active power demand is large, while the minimum energy compensation method reduces the active power demand and increases the output voltage of the inverter, which is difficult to have both advantages. Based on this, this paper proposes a series capacitance coupled DVR. By combining with the minimum energy compensation method, the proposed structure can not only achieve the minimum active output, but also significantly reduce the output voltage of the inverter, thus effectively reducing the capacity of the inverter and the voltage level of the DC side. This paper first introduces the basic circuit structure and working principle of series capacitance coupled DVR, and compares its superiority in output voltage and power level. Next, the operation boundary of the inverters is analyzed. In order to avoid the output voltage of the inverters exceeding its maximum output capacity under load fluctuation, the operation state adjustment strategy suitable for series capacitance coupled DVR is proposed to ensure the normal and stable operation of the device. Then, the influence of series capacitance on the stability and filtering effect of the control system is analyzed, and the optimal topology structure of series capacitance coupled DVR is selected. Finally, the effectiveness and feasibility of the series capacitance coupled DVR proposed in this paper are fully verified by simulation and experimental.

Key words： Dynamic voltage restorer (DVR) series capacitance minimum energy compensation inverter output voltage DC voltage

Received: 03 August 2019

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TM464

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	Tu Chunming
	Lu Baihua
	Guo Qi
	Gao Jiayuan
	Jiang Fei

Cite this article:

Tu Chunming,Lu Baihua,Guo Qi等. Operating Characteristics Analysis of Series Capacitance Coupled Dynamic Voltage Restorer Based on Minimum Energy Compensation Method[J]. Transactions of China Electrotechnical Society, 2020, 35(17): 3727-3738.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190981 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I17/3727

[1] 涂春鸣, 孙勇, 郭祺, 等. 适用于动态电压恢复器的最小能量柔性切换控制策略研究[J]. 电工技术学报, 2019, 34(14): 3035-3045.
Tu Chunming, Sun Yong, Guo Qi, et al.Study on the minimum energy soft-switching control strategy for dynamic voltage restorer[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 3035-3045.
[2] 李哲, 吴正国, 夏立, 等. 任意负载条件下动态电压恢复器的复合谐振控制策略[J]. 中国电机工程学报, 2013, 33(25): 130-138, 20.
Li Zhe, Wu Zhengguo, Xia Li, et al.Compound resonant control for dynamic voltage restorers under arbitrary load conditions[J]. Proceedings of the CSEE, 2013, 33(25): 130-138, 20.
[3] 邓杰, 姜飞, 涂春鸣. 美国NIST互操作性智能电网框架分析与启示[J].电力系统保护与控制, 2020, 48(3): 9-21.
Deng Jie, Jiang Fei, Tu Chunming.Study of NIST’s interoperable smart grid technology architecture[J]. Power System Protection and Control, 2020, 48(3): 9-21.
[4] 陈汝斯, 林涛, 毕如玉, 等. 基于有限量测数据的主动配电网电压暂降源精确定位策略[J]. 电工技术学报, 2019, 34(增刊1): 312-320.
Chen Rusi, Lin Tao, Bi Ruyu, et al.Strategy to precisely locate voltage sag source in active distribution grid with data measured by limited power quality observations[J]. Transactions of China Electrotechnical Society, 2019, 34(S1): 312-320.
[5] 杨用春, 肖湘宁, 郭世枭, 等. 基于模块化多电平变流器的统一电能质量调节器工程实验装置研究[J]. 电工技术学报, 2018, 33(16): 3743-3755.
Yang Yongchun, Xiao Xiangning, Guo Shixiao, et al.Research of unified power quality conditioner engineering experiment device based on modular multilevel converter[J]. Transactions of China Electrotechnical Society, 2018, 33(16): 3743-3755.
[6] 马茜, 王文立, 许倩. 储能式统一电能质量控制器负载电压全补偿容量配置策略[J]. 电力系统自动化, 2019, 43(20): 90-99.
Ma Qian, Wang Wenli, Xu Qian.Capacity allocation strategy for full compensation of load voltage in UPQC with energy storage[J]. Automation of Electric Power Systems, 2019, 43(20): 90-99.
[7] 施烨, 吴在军, 窦晓波, 等. 单相动态电压恢复器复合控制技术[J]. 电工技术学报, 2015, 30(17): 85-95.
Shi Ye, Wu Zaijun, Dou Xiaobo, et al.Study on compound control technology of single-phase dynamic voltage restorer[J]. Transactions of China Electrotechnical Society, 2015, 30(17): 85-95.
[8] 王艺博, 蔡国伟, 刘闯, 等. 基于双极性直接式AC/AC变换的单相动态电压恢复器[J]. 电力系统自动化, 2020, 44(6): 171-180.
Wang Yibo, Cai Guowei, Liu Chuang, et al.Single-phase dynamic voltage restorer based on bipolar direct AC/AC conversion[J]. Automation of Electric Power Systems, 2020, 44(6): 171-180.
[9] 陈国栋, 朱淼, 蔡旭. 功率因数与电压跌落深度双影响因子下中压H桥链式动态电压恢复器的滤波器优化设计[J]. 电工技术学报, 2016, 31(9): 75-84.
Chen Guodong, Zhu Miao, Cai Xu.Optimization of filter based on power factor and voltage sag depth for medium-voltage cascaded H-bridge dynamic voltage restorer[J]. Transactions of China Electrotechnical Society, 2016, 31(9): 75-84.
[10] 涂春鸣, 孙勇, 李珺, 等. 双PWM型动态电压恢复器的最大输出能力分析[J]. 电工技术学报, 2018, 33(21): 5015-5025.
Tu Chunming, Sun Yong, Li Jun, et al.Analysis of maximum output capability for dual-PWM dynamic voltage restorer[J]. Transactions of China Electrotechnical Society, 2018, 33(21): 5015-5025.
[11] 刘颖英, 肖湘宁, 徐永海. 动态电压恢复器的能量稳定补偿特性分析[J]. 中国电机工程学报, 2010, 30(13): 69-74.
Liu Yingying, Xiao Xiangning, Xu Yonghai.Analysis of energy stability compensation characteristics of dynamic voltage restorer[J]. Proceedings of the CSEE, 2010, 30(13): 69-74.
[12] 孙哲, 郭春林, 肖湘宁, 等. 基于负荷电压的DVR补偿策略分析方法及最小能量控制[J]. 中国电机工程学报, 2010, 30(31): 43-49.
Sun Zhe, Guo Chunlin, Xiao Xiangning, et al.Analysis method of DVR compensation strategy based on load voltage and minimum energy control[J]. Proceedings of the CSEE, 2010, 30(31): 43-49.
[13] 王世巍, 黄科, 许杏桃. 动态电压恢复器中的无电流内环控制策略[J]. 电力系统自动化, 2014, 38(18): 93-98.
Wang Shiwei, Huang Ke, Xu Xingtao.Control strategy for dynamic voltage restorer without inner current loops[J]. Automation of Electric Power Systems, 2014, 38(18): 93-98.
[14] 党存禄, 严鋆, 张晓英. 动态电压恢复器的时间优化补偿策略研究[J]. 电力系统保护与控制, 2011, 39(5): 11-16.
Dang Cunlu, Yanyun, Zhang Xiaoying.Analysis of time optimal compensation strategy for dynamic voltage restorer[J]. Power System Protection and Control, 2011, 39(5): 11-16.
[15] 李正明, 李文文, 张国松, 等. 一种补偿电网电压凹陷的DVR优化补偿策略[J]. 电力系统保护与控制, 2016, 44(17): 139-145.
Li Zhengming, Li Wenwen, Zhang Guosong, et al.An optimized compensation strategy of DVR for gird voltage sag compensation[J]. Power System Protection and Control, 2016, 44(17): 139-145.
[16] 王晶, 徐玲玲, 王志琦. 改进型动态电压恢复器的最小能量法[J]. 电力系统保护与控制, 2013, 41(4): 73-78.
Wang Jing, Xu Lingling, Wang Zhiqi.Minimum energy method for improved dynamic voltage restorer[J]. Power System Protection and Control, 2013, 41(4): 73-78.
[17] 唐治德, 余小闯, 金幸, 等. 动态电压恢复器的补偿策略研究与仿真分析[J]. 电气自动化, 2010, 32(4): 63-65.
Tang Zhide, Yu Xiaochuang, Jin Xing, et al.Compensation strategy and simulation for dynamic voltage restorer[J]. Electric Automation, 2010, 32(4): 63-65.
[18] Karanki S B, Geddada N, Mishra M K, et al.A DSTATCOM topology with reduced DC-link voltage rating for load compensation with nonstiff source[J]. IEEE Transactions on Power Electronics, 2012, 27(3): 1201-1211.
[19] 成佳富, 何志兴, 周钦贤, 等. LC耦合式级联STATCOM及其控制策略[J]. 电力自动化设备, 2018, 38(10): 127-132, 139.
Cheng Jiafu, He Zhixing, Zhou Qinxian, et al.LC coupled cascade STATCOM and its control strategy[J]. Power Automation Equipment, 2018, 38(10): 127-132, 139.
[20] 罗培, 黄强, 陈跃辉, 等. 一种中性线串接电容的LC耦合型配电网静止同步补偿器拓扑结构[J]. 电网技术, 2018, 42(10): 3385-3392.
Luo Pei, Huang Qiang, Chen Yuehui, et al.A neutral-line series capacitor LC-coupled distribution network static synchronous compensator topology[J]. Power System Technology, 2018, 42(10): 3385-3392.
[21] 黄本润, 夏立, 吴正国, 等. 线电压补偿型动态电压恢复器的双前馈加反馈控制策略[J]. 电力自动化设备, 2011, 31(10): 61-64, 69.
Huang Benrun, Xia Li, Wu Zhengguo, et al.Double feedforward plus feedback control strategy for line voltage compensated DVR[J]. Power Automation Equipment, 2011, 31(10): 61-64, 69.
[22] 张新闻, 同向前. 电容耦合型动态电压恢复器参数建模与控制[J]. 电工技术学报, 2016, 31(6): 212-218.
Zhang Xinwen, Tong Xiangqian.Parameter modeling and control of capacitor-coupled dynamic voltage restorer[J]. Transactions of China Electrotechnical Society, 2016, 31(6): 212-218.
[23] 侯世英, 刘早晨, 嵇丽明, 等. 基于最小有功注入策略的新型级联H桥逆变器动态电压恢复器[J]. 电网技术, 2009, 33(17): 96-101.
Hou Shiying, Liu Zaochen, Ji Liming, et al.A novel cascaded H-bridge inverter for dynamic voltage restorer based on minimum active power injection strategy[J]. Power System Technology, 2009, 33(17): 96-101.
[24] 黄永红, 徐俊俊, 孙玉坤. 基于最小能量补偿控制的微网动态电压恢复器[J]. 电工技术学报, 2014, 29(12): 128-136.
Huang Yonghong, Xu Junjun, Sun Yukun.Dynamic voltage restorer in micro-grid based on a minimum energy compensation control scheme[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 128-136.