MGP系统为新能源电网提供惯性的实验研究
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摘要
随着电网中新能源的渗透率不断增加,电网的整体惯性不断降低,这将威胁到电网频率稳定性。同步电机对(Motor-Generator Pair, MGP)系统可以有效解决该问题。本文首先介绍了新能源电网的惯性特性,随后介绍了MGP系统的基本概念,基于MGP系统的功率相位关系提出源网相位控制方法,最后通过实验比较了光伏系统有无MGP系统时的频率响应情况。实验结果表明,MGP系统可以为新能源提供惯性支持,这将提高新能源电网的频率稳定性。
With the increasing of penetration of renewable energy, the whole inertia of the power system is declining, which will endanger the frequency stability. Motor-Generator Pair(MGP)system can deal with these problems efficiently. In this paper, the basic working principle of MGP system is introduced firstly, then the theoretical basis of source-grid phase control method is proposed. The frequency response of PV system with/without MGP system is compared by experiment. The results show that the MGP system can provide inertia support for renewable energy,which can increase frequency stability for renewable energy power grid.
With the increasing of penetration of renewable energy, the whole inertia of the power system is declining, which will endanger the frequency stability. Motor-Generator Pair(MGP)system can deal with these problems efficiently. In this paper, the basic working principle of MGP system is introduced firstly, then the theoretical basis of source-grid phase control method is proposed. The frequency response of PV system with/without MGP system is compared by experiment. The results show that the MGP system can provide inertia support for renewable energy,which can increase frequency stability for renewable energy power grid.
引文
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[14]卫思明,黄永章.风电采用MGP并网的小干扰建模和阻尼特性[J].电力系统自动化,2017,41(22):16-25.
[15]Kundur,Prabha.Power system stability and control.Eds.Neal J.Balu,and Mark G.Lauby.Vol.7.New York:McGraw-hill,1994.
[2]Heydt,Gerald Thomas.The next generation of power distribution systems[J].IEEE Transactions on Smart Grid,2010,1(3):225-235.
[3]Soni,Nimish,Suryanarayana Doolla,and Mukul C.Chandorkar.Improvement of transient response in microgrids using virtual inertia[J].IEEETransactions on Power Delivery,2013,28(3):1830-1838.
[4]李世春,邓长虹,龙志君,周沁,郑峰.风电场等效虚拟惯性时间常数计算[J].电力系统自动化,2016,40(07):22-29.
[5]Xiang-Zhen,Yang.Control strategy for virtual synchronous generator in microgrid[C].Electric Utility Deregulation and Restructuring and Power Technologies(DRPT),2011 4th International Conference on.IEEE,2011.
[6]Visscher,K.,and S.W.H.De Haan.Virtual synchronous machines(VSG’s)for frequency stabilisation in future grids with a significant share of decentralized generation[C].CIRED Seminar2008:SmartGrids for Distribution.2008.
[7]Beck,Hans-Peter,and Ralf Hesse.Virtual synchronous machine[C].2007 9th International Conference on Electrical Power Quality and Utilisation.IEEE,2007.
[8]Shintai,Toshinobu,Yushi Miura,and Toshifumi Ise.Oscillation damping of a distributed generator using a virtual synchronous generator[J].IEEETransactions on Power Delivery,2014,29(2):668-676.
[9]Alipoor,Jaber,Yushi Miura,and Toshifumi Ise.Power system stabilization using virtual synchronous generator with alternating moment of inertia[J].IEEE Journal of Emerging and Selected Topics in Power Electronics 2015,3(2):451-458.
[10]Zhong,Qing-Chang,and George Weiss.Synchronverters:Inverters that mimic synchronous generators[J].IEEE Transactions on Industrial Electronics,2011,58(4):1259-1267.
[11]李辉,刘海涛,宋二兵,肖洪伟,骆林,黄智欣.双馈抽水蓄能机组参与电网调频的改进虚拟惯性控制策略[J].电力系统自动化,2017,41(10):58-65.
[12]Wei S.,Zhou Y.,Xu G.,&Huang,Y.Motor-generator pair:a novel solution to provide inertia and damping for power system with high penetration of renewable energy[J].Iet Generation Transmission&Distribution.2017,11(7):1839-1847.
[13]Wei,S.Zhou,Y.Li,S.and Huang,Y.A possible configuration with motor-generator pair for renewable energy integration[J].CSEE Journal of Power and Energy Systems,2017,3(1):93-100.
[14]卫思明,黄永章.风电采用MGP并网的小干扰建模和阻尼特性[J].电力系统自动化,2017,41(22):16-25.
[15]Kundur,Prabha.Power system stability and control.Eds.Neal J.Balu,and Mark G.Lauby.Vol.7.New York:McGraw-hill,1994.