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一种快速无功支撑的阻容性逆变器并联控制方法

DOI: 10.13334/j.0258-8013.pcsee.2014.30.005, PP. 5296-5305

Keywords: 微电网,逆变器并联,阻容性逆变器,虚拟阻抗,快速无功支撑,环流

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Abstract:

在低压微电网多逆变器并联系统中,负荷突变会导致微电网电压波动,逆变器具备快速无功支撑能力是维持电压稳定的必要途径。该文通过将阻容性虚拟复阻抗引入到逆变器输出电流反馈中,提出一种快速无功支撑的阻容性逆变器(RC型逆变器)及其并联功率分配方法。该逆变器将其等效输出阻抗设计成阻容性,可实现微电网在公共连接点处的无功功率快速支撑,从而保持系统电压稳定,并可抑制逆变器输出阻抗和电网阻抗间的谐振,进一步降低电压畸变。在对阻容性逆变器进行等效建模基础上,通过设计阻容性虚拟复阻抗,给出该类逆变器并联的多环功率精确分配方法,包括功率下垂控制外环,虚拟阻抗中间环及输出电压控制内环。分析虚拟复阻抗参数对并联环流的影响,并选取合适的控制参数。仿真和实验验证了控制方法的有效性。

References

[1]  余贻鑫,栾文鹏.智能电网述评[J].中国电机工程学报,2009,34(29):1-6.
[2]  Yu Yixin,Luan Wenpeng.Smart grid and its implementations[J].Proceedings of the CSEE,2009,34(29):1-6(in Chinese).
[3]  Carrasco J M,Franquelo L G,Bialasiewicz J,et al.Power-electronic systems for the grid integration of renewable energy sources:A survey[J].IEEE Trans. on Industrial Electronics,2006,53(4):1002-1016.
[4]  Lopes J A P,Moreira C L,Madureira A G.Defining control strategies for microgrid island operation[J].IEEE Trans. on Power Systems,2006,21(2):916-924.
[5]  王成山,高菲,李鹏,等.低压微网控制策略研究[J].中国电机工程学报,2012,32(25):2-8.
[6]  Wang Chengshan,Gao Fei,Li Peng,et al.Control strategy research on low voltage microgrid[J].Proceedings of the CSEE,2012,32(25):2-8(in Chinese).
[7]  Tuladhar A,Jin H,Unger T,et al.Control of parallel inverters in distributed AC power systems with consideration of line impedance effect[J].IEEE Transaction on Industrial Applications,2000,36(1):131-138.
[8]  鞠洪新,丁明,杜燕.逆变电源无线并联系统稳态频率无差的仿真实现[J].合肥工业大学学报:自然科学版,2006,29(5):513-516.
[9]  Ju Hongxin,Ding Ming,Du Yan.Simulation of no steady frequency-deviation in the parallel inverter without control interconnections[J].Journal of Hefei University of Technology:Natural Science,2006,29(5):513-516(in Chinese).
[10]  方天治,阮新波,肖岚,等.一种改进的分布式逆变器并联控制策略[J].中国电机工程学报,2008,28(33):30-36.
[11]  Fang Tianzhi,Ruan Xinbo,Xiao Lan,et al.An improved distributed control strategy of parallel inverters[J].Proceedings of the CSEE,2008,28(33):30-36(in Chinese).
[12]  张尧,马皓,雷彪,等.基于下垂特性控制的无互联线逆变器并联动态性能分析[J].中国电机工程学报,2009,29(3):42-48.
[13]  Zhang Yao,Ma Hao,Lei Biao,et al.Analysis of dynamic performance for parallel operation of inverters without wire interconnections[J].Proceedings of the CSEE,2009,29(3):42-48(in Chinese).
[14]  张庆海,彭楚武,陈燕东,等.一种微电网多逆变器并联运行控制策略[J].中国电机工程学报,2012,32(25):126-132.
[15]  Zhang Qinghai,Peng Chuwu,Chen Yandong,et al.A control strategy for parallel operation of multi-inverters in microgrid[J].Proceedings of the CSEE,2012,32(25):126-132(in Chinese).
[16]  陈燕东,罗安,龙际根,等.阻性逆变器并联环流分析及鲁棒下垂多环控制[J].中国电机工程学报,2013,33(18):18-29.
[17]  Chen Yandong,Luo An,Long Jigen.Circulating current analysis and robust droop multiple loop control method for parallel inverters using resistive output impedance[J].Proceedings of the CSEE,2013,33(18):18-29(in Chinese).
[18]  于玮,徐德鸿.基于虚拟阻抗的不间断电源并联系统均流控制[J].中国电机工程学报,2009,29(24):32-39.
[19]  Yu Wei,Xu Dehong.Control scheme of paralleled UPS system based on output virtual resistance[J].Proceedings of the CSEE,2009,29(24):32-39(in Chinese).
[20]  Guerrero J M,Vicuna L G,Matas J,et al.Output impedance design of parallel-connected UPS inverters with wireless load-sharing control[J].IEEE Transactions on Industrial Electronics,2005,52(4):1126-1135.
[21]  Vasquez J C,Mastromauro R A,Guerrero J M,et al.Voltage support provided by a droop-controlled multifunctional inverter[J].IEEE Transactions on Industrial Electronics,2009,56(11):4510-4519.
[22]  Guerrero J M,Matas J,Luis G D V,et al.Wireless-control strategy for parallel operation of distributed-generation inverters[J].IEEE Transactions on Industrial Electronics,2006,53(5):1461-1470.
[23]  Wei Yao,Min Chen,Matas J,et al.Design and analysis of the droop control method for parallel inverters considering the impact of the complex impedance on the power sharing[J].IEEE Transactions on Industrial Electronics,2011,58(2):576-587.
[24]  Li Yunwei,Kao Chingnan.An accurate power control strategy for power-electronics-interfaced distributed generation units operating in a low-voltage multibus microgrid[J].IEEE Trans. on Power Electronics,2009,24(12):2977-2988.
[25]  Yu Xiaoxiao,Khambadkone A M,Wang Huanhuan,et al.Control of parallel-connected power converters for low-voltage microgrid—Prat I:a hybrid control architecture[J].IEEE Trans. on Power Electronics,2010,25(12):2962-2970.
[26]  Guerrero J M,Vasquez J C,Matas J,et al.Hierarchical control of droop-controlled AC and DC microgrids—a general approach towards standardization[J].IEEE Trans. on Industrial Electronics,2011,58(1):158-172.
[27]  De Brabandere K,Bolsens B,Van den Keybus J,et al.A voltage and frequency droop control method for parallel inverters[J].IEEE Transaction on Power Electronics,2007,22(4):1107-1115.
[28]  Guerrero J M,Matas J,de Vicuna L G,et al.Decentralized control for parallel operation of distributed generation inverters using resistive output impedance[J].IEEE Trans. on Industry Electronics,2007,54(2):994-1004.
[29]  陈燕东,罗安,谢三军,等.一种无延时的单相光伏并网功率控制方法[J].中国电机工程学报,2012,32(25):118-125.
[30]  Chen Yandong,Luo An,Xie Sanjun,et al.A single-phase photovoltaic grid-connected power control method without delay[J].Proceedings of the CSEE,2012,32(25):118-125(in Chinese).
[31]  阚志忠,张纯江,薛海芬,等.微网中三相逆变器无互连线并联新型下垂控制策略[J].中国电机工程学报,2011,31(33):68-74.
[32]  Kan Zhizhong,Zhang Chunjiang,Xue Haifen,et al.A novel droop control of three-phase inverters in wireless parallel operation in micro-grid[J].Proceedings of the CSEE,2011,31(33):68-74(in Chinese).
[33]  高范强,王平,李耀华,等.基于时变相量小信号模型的逆变器并联控制系统分析与设计略[J].中国电机工程学报,2011,31(33):75-84.
[34]  Gao Fanqiang,Wang Ping,Li Yaohua,et al.Analysis and design of for paralleled inverter system based on the small signal model using time-varying phasor[J].Proceedings of the CSEE,2011,31(33):75-84(in Chinese).
[35]  陆晓楠,孙凯,黄立培.微电网系统中并联LCL滤波器谐振特性[J].清华大学学报:自然科学版,2012,52(1):1571-1577.
[36]  Lu Xiaonan,Sun Kai,Huang Lipei Resonance characteristics in a parallel LCL filter system for microgrid applications[J].Journal of Tshinghua University:Science &Techology,2012,52(1):1571-1577(in Chinese).
[37]  Wu T F,Wu Y E,Hsieh H M,et al.Current weighting distribution control strategy for multi-inverter systems to achieve current sharing[J].IEEE Trans. on Power Electronics,2007,22(1):160-168.
[38]  Agorreta J,Borrega M,Lopez J,et al.Modeling and control of N paralleled grid-connected inverters with LCL filters coupled due to grid impedance in PV plants[J].IEEE Trans. on Industry Electronics,2011,26(3):780-780.
[39]  He W,Li Y W,Bosnjak D,et al.Investigation and active damping of multiple resonances in a parallel-inverter- based microgrid[J].IEEE Trans. on Power Electronics,2013,28(1):234-246.

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