基于光伏电源支撑的多端口固态变压器故障穿越策略

doi:10.19595/j.cnki.1000-6753.tces.190929

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (63510 KB) HTML
输出: BibTeX | EndNote (RIS)

摘要故障重合闸是配电网提高供电可靠性的有效手段, 采用电力电子技术集成的多端口固态变压器（SST）受控制策略的影响显著, 面对配电网重合闸时的运行机制不明晰。基于此, 该文研究重合闸机制下SST的运行特点, 通过分析指出, 若不采用一定的控制策略, SST在面对重合闸时将可能出现过电流, 进而提出结合光伏电源接入的冲击电流抑制策略来提升SST的运行能力。首先, 该文简析SST的拓扑结构与控制策略, 并分析重合闸过程中SST冲击电流产生机理;其次, 根据不同的初始工况以及输入级最大允许电流求得光伏电源功率调整的范围进行功率补偿, 并提出冲击电流抑制策略;最后, 通过仿真与实验验证了该文理论分析与所提策略的正确性与有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	涂春鸣
	葛钦
	肖凡
	陈江兴
	方旎

关键词 ：固态变压器, 自动重合闸, 冲击电流, 光伏电源

Abstract：Reclosing is an effective measure to improve the reliability of distribution network. The multi-port solid-state transformer (SST) integrated with power electronics is significantly affected by the control strategy, and the operating mechanism of SST is unclear during the reclosing of the distribution network. Therefore, this paper studies the operating characteristics of SST under the reclosing mechanism. It is pointed out that if a certain control strategy is not adopted, SST may have impulse current in the face of reclosing. Accordingly, this paper proposes an impulse current suppression strategy for the SST with photovoltaic (PV) power generation to improve the operational capabilities. Firstly, this paper analyzes the topology and control strategy of SST as well as the mechanism of SST impulse current during reclosing. Secondly, according to different initial working conditions and the maximum allowable current of the input stage, the power compensation range of the PV power generation is obtained, and the impulse current suppression strategy is proposed. Finally, simulation and experiment verify the correctness and effectiveness of the theoretical analysis and proposed strategy.

Key words： Solid state transformer automatic reclosing impulse current photovoltaic power generation

收稿日期: 2019-07-25

PACS:	TM41
	TM921.5

引用本文:

涂春鸣, 葛钦, 肖凡, 陈江兴, 方旎. 基于光伏电源支撑的多端口固态变压器故障穿越策略[J]. 电工技术学报, 2020, 35(16): 3498-3508. Tu Chunming, Ge Qin, Xiao Fan, Chen Jiangxing, Fang Ni. Fault Ride-Through Control Strategy of Solid State Transformer with PV Power Generation. Transactions of China Electrotechnical Society, 2020, 35(16): 3498-3508.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.190929 https://dgjsxb.ces-transaction.com/CN/Y2020/V35/I16/3498

[1] 赵争鸣, 冯高辉, 袁立强, 等. 电能路由器的发展及其关键技术[J]. 中国电机工程学报, 2017, 37(13): 3823-3834.
Zhao Zhengming, Feng Gaohui, Yuan Liqiang, et al.The development and key technologies of electric energy router[J]. Proceedings of the CSEE, 2017, 37(13): 3823-3834.
[2] 涂春鸣, 肖凡, 袁靖兵, 等. 级联型电力电子变压器直流电压二次纹波抑制策略[J]. 电工技术学报, 2019, 34(14): 2990-3003.
Tu Chunming, Xiao Fan, Yuan Jingbing, et al.DC ripple voltage suppression strategy for cascaded power electronic transformer[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 2990-3003.
[3] 李子欣, 王平, 楚遵方, 等. 面向中高压智能配电网的电力电子变压器研究[J]. 电网技术, 2013, 37(9): 2592-2601.
Li Zixin, Wang Ping, Chu Zunfang, et al.Research on medium- and high-voltage smart distribution grid oriented power electronic transformer[J]. Power System Technology, 2013, 37(9): 2592-2601.
[4] 涂春鸣, 肖凡, 兰征, 等. 微电网中电力电子变压器的电压质量控制策略研究[J]. 电工电能新技术, 2018, 37(6): 1-9.
Tu Chunming, Xiao Fan, Lan Zheng, et al.The power control of power electronic transformer in hybrid AC-DC microgrid[J]. Transactions of China Electro- technical Society, 2018, 37(6): 1-9.
[5] 刘建强, 赵楠, 孙帮成, 等. 基于LLC谐振变换器的电力电子牵引变压器控制策略研究[J]. 电工技术学报, 2019, 34(16): 3333-3344.
Liu Jianqiang, Zhao Nan, Sun Bangcheng, et al.Research on control strategy of power electronic traction transformer based on LLC resonant converter[J]. Transactions of China Electrotechnical Society, 2019, 34(16): 3333-3344.
[6] 涂春鸣, 黄红, 兰征, 等. 微电网中电力电子变压器与储能的协调控制策略[J]. 电工技术学报, 2019, 34(12): 2627-2636.
Tu Chunming, Huang Hong, Lan Zheng, et al.Coordinated control strategy of power electronic transformers and energy storage in microgrids[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2627-2636.
[7] Feng Jianhua, Chu W Q, Zhang Zhixue, et al.Power electronic transformer-based railway traction systems: challenges and opportunities[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017, 5(3): 1237-1253.
[8] 兰征, 涂春鸣, 肖凡, 等. 电力电子变压器对交直流混合微网功率控制的研究[J]. 电工技术学报, 2015, 30(23): 50-57.
Lan Zheng, Tu Chunming, Xiao Fan, et al.Study on power control of AC/DC hybrid microgrid by power electronic transformer[J]. Transactions of China Electrotechnical Society, 2015, 30(23): 50-57.
[9] Kolar J W, Ortiz G I.Solid-state-transformers: key components of future traction and smart grid systems[C]//Proceedings of the International Power Electronics Conference, Hiroshima, Japan, 2014.
[10] Zhao Tiefu, Wang Gangyao, Bhattacharya S, et al.Voltage and power balance control for a cascaded H-bridge converter-based solid-state transformer[J]. IEEE Transactions on Power Electronics, 2013, 28(4): 1523-1532.
[11] 李响, 郝瑞祥, 游小杰, 等. 一种级联电力电子变压器直流电压平衡控制策略[J]. 电工技术学报, 2017, 32(2): 238-245.
Li Xiang, Hao Ruixiang, You Xiaojie, et al.A DC voltage balance control strategy for the cascaded power electronic transformer[J]. Transactions of China Electrotechnical Society, 2017, 32(2): 238-245.
[12] 王杉杉, 王玉斌, 林意斐, 等. 级联型电力电子变压器电压与功率均衡控制方法[J]. 电工技术学报, 2016, 31(22): 92-99.
Wang Shanshan, Wang Yubin, Lin Yifei, et al.Voltage and power balance control for cascaded power electronic transformer[J]. Transactions of China Electrotechnical Society, 2016, 31(22): 92-99.
[13] Liu Jianqiang, Yang Jingxi, Zhang Jiepin, et al.Voltage balance control based on dual active bridge DC/DC converters in a power electronic traction transformer[J]. IEEE Transactions on Power Electro- nics, 2018, 33(2): 1696-1714.
[14] 张晓东, 张大海. 电力电子变压器在电网故障中的控制策略[J]. 电力系统及其自动化学报, 2014, 26(1): 39-43.
Zhang Xiaodong, Zhang Dahai.Control strategy of power electronic transformer in power grid failure[J]. Automation of Electric Power Systems, 2014, 26(1): 39-43.
[15] 冯宇鹏, 吴金龙, 王先为, 等. 电网不平衡故障下电力电子变压器控制策略[J]. 电力建设, 2016, 37(7): 84-90.
Feng Yupeng, Wu Jinlong, Wang Xianwei, et al.Power electronic transformer control strategy under unbalanced network faults[J]. Electric Power Con- struction, 2016, 37(7): 84-90.
[16] Ouyang Shaodi, Liu Jinjun, Chen Xinqiang, et al.Control strategy for single-phase open-circuit oper- ation of a modular solid-state transformer[J]. IEEE Transactions on Power Electronics, 2019, 34(9): 8555-8573.
[17] 金一丁, 宋强, 刘文华. 基于公共直流母线的链式可拓展电池储能系统及控制[J]. 电力系统自动化, 2010, 34(15): 66-70.
Jin Yiding, Song Qiang, Liu Wenhua.Control and analysis of extensible cascaded battery energy storage system based on a common DC bus[J]. Auto- mation of Electric Power Systems, 2010, 34(15): 66-70.
[18] García P, Saeed S, Navarro-Rodríguez Á, et al.Switching frequency optimization for a solid state
transformer with energy storage capabilities[J]. IEEE Transactions on Industry Applications, 2018, 54(6): 6223-6233.
[19] 党存禄, 慈航乐, 党媛. 具有储能环节的电力电子电能质量研究[J]. 电子技术应用, 2019, 45(3): 118-121, 126.
Dang Cunlu, Ci Hangle, Dang Yuan.Research on power quality of solid state transformer with energy storage[J]. Electronic Technology Application, 2019, 45(3): 118-121, 126.
[20] 袁宇春, 张保会. 对整定线路重合闸时间的讨论[J]. 继电器, 2000(1): 13-15.
Yuan Yuchun, Zhang Baohui.Discussion on setting the reclosing time of lines[J]. Relay, 2000(1): 13-15.
[21] 李子欣, 高范强, 赵聪, 等. 电力电子变压器技术研究综述[J]. 中国电机工程学报, 2018, 38(5): 1274-1289.
Li Zixin, Gao Fanqiang, Zhao Cong, et al.Review of power electronic transformer technology research[J]. Proceedings of the CSEE, 2018, 38(5): 1274-1289.
[22] She Xu, Huang A Q, Burgos R.Review of solid-state transformer technologies and their application in power distribution systems[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2013, 1(3): 186-198.
[23] 许敏, 张宏川, 王淑红, 等. 电网电动势初始相位角对三相PWM整流器启动电流的影响分析[J]. 工矿自动化, 2013, 39(10): 59-63.
Xu Min, Zhang Hongchuan, Wang Shuhong et al. Analysis of the influence of the initial phase angle of the grid's electromotive force on the starting current of the three-phase PWM rectifier[J]. Industry and Mine Automation, 2013, 39(10): 59-63.