Design of Wide-area Damping Controller for Large-scale PV Power Plants Based on Correlation Identification Method
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摘要: 针对含大型光伏电站的电力系统可能存在的区间低频振荡问题,提出基于相关辨识法的大型光伏电站广域阻尼控制器设计方法。首先采用基于伪随机信号的相关辨识法得到系统的开环传递函数。接着将TLS-ESPRIT法应用到主模比指标的计算中,并结合留数指标对阻尼控制器输入信号进行优选,然后采用极点配置的方法整定控制器参数。最后,在DIgSILENT/PowerFactory中搭建含光伏电站的两区域系统机电暂态模型,时域仿真结果表明:所提出的光伏广域阻尼控制器能够有效抑制系统区间低频振荡,提升了系统小干扰稳定性。Abstract: As to the potential inter-area low-frequency oscillation problem of power system with grid-connected large-scale photovoltaic (PV) power plants, wide-area damping controller (WADC) for large-scale PV power plants is proposed based on correlation identification method. Firstly, the open loop transfer function of the system is obtained by correlation identification method based on pseudo random signals. Then TLS-ESPRIT(total least squares- estimation of signal parameters via rotational invariance techniques, TLS-ESPRIT) method is applied in calculating dominant mode ratio (DMR) to select the optimal input signal of WADC by combining residue index. Secondly, the parameters of WADC are regulated by using pole placement method. Finally, the electromechanical transient model of two-area system with grid-connected PV power plants is built by DIgSILENT/PowerFactory. The time-domain simulation results show that PV WADC for power system with grid-connected large-scale PV power plants can effectively control inter-area low-frequency oscillation, and improve the small signal stability of power system.
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刘纯,马烁,董存,等.欧洲3·20日食对含大规模光伏发电的电网运行影响及启示[J].电网技术,2015, 39(7):17651772.[2] 王晓华,张建成,周春霞,等.联网光伏发电系统调度运行控制方法研究[J].现代电力,2015,32(2):2328.[3] 丁明,王伟胜,王秀丽,等.大规模光伏发电对电力系统影响综述[J].中国电机工程学报,2014,34(1):114.[4] 龙源,李国杰,程林,等.利用光伏发电系统抑制电网功率振荡的研究[J].电网技术,2006,30(24):4449.[5] Li G J,Ruan S Y,Choi S S.A photo-voltaic damping system for suppressing power system oscillation [C]//Proceedings of 2009 IEEE International Conference on Control and Automation.2009:16811686.[6] Mithulananthan N,Shah R,Lee K Y.Small-disturbance angle stability control with high penetration of renewable generations[J].IEEE Transactions on Power Systems,2014,29(3):14631472.[7] Shah R,Mithulananthan N,Lee K Y,et al.Wide-area measurement signal-based stabiliser for large-scale photovoltaic plants with high variability and uncertainty[J].IET Renewable Power Generation,2013,7(6):614622.[8] Shah R,Mithulananthan N,Lee K Y.Large-scale PV plant with a robust controller considering power oscillation damping[J].IEEE Transactions on Energy Conversion,2013,28(1):106116.[9] 张立奎,张英敏,李兴源,等.柔性直流附加鲁棒阻尼控制器设计[J].现代电力,2015,32(2):7075.[10]刘东冉,陈树勇,马敏,等.光伏发电系统模型综述[J].电网技术,2011,35(8):4752.[11]熊连松,刘小康,卓放,等.光伏发电系统的小信号建模及其控制器参数的全局优化设计方法[J].电网技术,2014,38(5):12341241.[12]芦晶晶,郭剑,田芳,等.基于Prony方法的电力系统振荡模式分析及PSS参数设计[J].电网技术,2004, 28(15):3134.[13]潘学萍,温荣超,鞠平,等.双馈风电机组网侧控制器参数辨识的频域方法[J].电网技术,2015,39(3):634638.[14]蒋平,叶慧,吴熙.基于留数的静止同步补偿器附加阻尼鲁棒控制[J].电网技术,2012,36(10):131135.[15]吴星,刘天琪,李兴源,等.基于WAMS/SCADA混合量测和离散粒子群优化算法的PMU优化配置[J].现代电力,2014,31(6):1014.[16]贺静波,李立浧,陈辉祥,等.基于广域信息的电力系统阻尼控制器反馈信号选择[J].电力系统自动化,2007,31(9):610.[17]张静,徐政,王峰,等. TLS-ESPRIT算法在低频振荡分析中的应用[J].电力系统自动化,2007,31(20):8488.[18]Kundur P.Power system stability and control[M].New York,USA:McGraw-Hill Inc,1994.[19]陈刚,程林,孙元章,等.基于综合几何指标的广域电力系统稳定器设计[J].电力系统自动化,2013, 37(2):1822. -
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