孤立微电网中基于输出电压复合控制的电压源型并网逆变器谐波电流抑制策略

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Abstract The principle of injected fundamental and harmonic current of grid-connected inverter with droop controller is analyzed firstly in this paper, and a compound harmonic current suppression strategy of GC-VCI with distorted grid voltage is proposed. A notch filter is firstly designed for the separation of different frequency components of the PCC voltage. Then the fundamental component of the inverter’s output is controlled by the droop controller solely. A PIR complex controller is adopted for enhancing the tracking ability for harmonic component. As a result, the difference of harmonic voltage between PCC and the output point of inverter is reduced, and the injected harmonic current is decreased. These theoretical findings are verified through simulations and experiments on the laboratory platform with two inverters.

Key words： Harmonic current voltage source inverter droop microgrid

Received: 03 February 2015 Published: 20 April 2016

PACS:

TM464

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	Articles by authors
	Feng Wei
	Sun Kai
	Guan Yajuan
	Wang Yibo

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Feng Wei,Sun Kai,Guan Yajuan等. A Harmonic Current Suppression Strategy for Voltage Source Grid-Connected Inverters Based on Output Voltage Hybrid Control in Islanded Microgrids[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 72-80.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I7/72

[1] 王成山,武震,李鹏.微电网关键技术研究[J].电工技术学报,2014,29(2):1-12.
Wang Chengshan,Wu Zhen,Li Peng.Research on key technologies of microgrid[J].Transactions of China Electrotechnical Society,2014,29(2):1-12.
[2] Guan Yajuan,Vasquez J C,Guerrero J M,et al.Frequency stability of hierarchically controlled hybrid photovoltaic-battery-hydropower microgrids[C]//2014 IEEE Energy Conversion Congress and Exposition,Pittsburgh,PA,2014:1573-1580.
[3] Wu C S,Liao Hua,Yang Zilong,et al.Research on control strategies of small-hydro/PV hybrid power system[C]//International Conference on Sustainable Power Generation and Supply,Nanjing,2009:1-5.
[4] 任海鹏,郭鑫,杨彧,等.光伏阵列最大功率跟踪变论域模糊控制[J].电工技术学报,2013,28(8):14-19.
Ren Haipeng,Guo Xin,Yang Yu,et al.Maximum power point tracking of photovoltaic array using variable universe fuzzy controller[J].Transactions of China Electrotechnical Society,2013,28(8):14-19.
[5] 梁亮,李建林,惠东.光伏-储能联合发电系统运行机理及控制策略[J].电力自动化设备,2011,31(8):20-23.
Liang Liang,Li Jianlin,Hui Dong.Operating modes of photovoltaic/energy-storage hybrid system and its control strategy[J].Electric Power Automation Equipment,2011,31(8):20-23.
[6] 蒋冀,段善旭,陈仲伟.三相并网/独立双模式逆变器控制策略研究[J].电工技术学报,2012,27(2):52-58.
Jiang Ji,Duan Shanxu,Chen Zhongwei.Research on control strategy for three-phase double mode inverter[J].Transactions of China Electrotechnical Society,2012,27(2):52-58.
[7] He Jinwei,Li Y W,Munir M S.A flexible harmonic control approach through voltage-controlled DG-grid interfacing converters[J].IEEE Transactions on Industrial Electronics,2012,59(1):444-455.
[8] Guerrero J M,Garcia De V L,Matas J,et al.Output impedance design of parallel-connected UPS inverters with wireless load-sharing control[J].IEEE Transactions on Industry Applications,2005,52(4):1126-1135.
[9] He Jinwei,Li Y W,Bosnjak D,et al.Investigation and resonances damping of multiple PV inverters[C]//2012 Twenty-Seventh Applied Power Electronics Conference and Exposition,Orlando,FL,2012:246-253.
[10]Cespedes M,Sun Jian.Impedance modeling and analysis of grid-connected voltage-source converters[J].IEEE Transactions on Power Electronics,2014,29(3):1254-1261.
[11]He Jinwei,Li Y W.Hybrid voltage and current control approach for DG grid interfacing converters with LCL filters[J].IEEE Transactions on Industrial Electronics,2013,60(5):1797-1809.
[12]张培高,李兴源,李政.孤网频率稳定与控制策略研究[J].电力系统保护与控制,2012,8(1):144-155.
Zhang Peigao,Li Xingyuan,Li Zheng.Research on frequency stability and control strategy in isolated power grid[J].Power System Protection and Control,2012,8(1):144-155.
[13]He Jinwei,Li Y W,Blaabjerg F.Flexible microgrid power quality enhancement using adaptive hybrid voltage and current controller[J].IEEE Transactions on Industrial Electronics,2014,61(6):2784-2794.
[14]冯伟,关雅娟,鞠昌斌,等.孤立电网条件下电压源逆变器并网稳定性研究[J].可再生能源,2014,32(5):599-603.
Feng Wei,Guan Yajuan,Ju Changbin,et al.Study on the stability of voltage source inverter connected with isolated grid[J].Renewable Energy Resources,2014,32(5):599-603.
[15]Vandoorn T L,De Jeroen D M,Meersman B,et al.Communication-based secondary control in microgrids with voltage-based droop control[C]//2012 IEEE PES Transmission and Distribution Conference and Exposition,Orlando,FL,2012:1-6.
[16]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.
[17]鲍薇,胡学浩,李光辉,等.独立型微电网中基于虚拟阻抗的改进下垂控制[J].电力系统保护与控制,2013,41(16):8-13.
Bao Wei,Hu Xuehao,Li Guanghui,et al.An improved droop control strategy based on virtual impedance in islanded micro-grid[J].Power System Protection and Control,2013,41(16):8-13.
[18]GB/T 19939—2005,光伏系统并网技术要求[S].
[19]邱晓明,王明渝,胡文.LLCL滤波的单相光伏并网逆变器控制技术研究[J].电力系统保护与控制,2013,41(10):75-79.
Qiu Xiaoming,Wang Mingyu,Hu Wen.LLCL filter based single phase photovoltaic grid connected inverter control strategy[J].Power System Protection and Control,2013,41(10):75-79.