新能源并网场景下失步振荡中心迁移研究现状综述
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摘要
电力系统的安全稳定运行尤为重要,当电力系统发生各类故障引发系统发生失步振荡时,需要将系统的失步振荡中心准确定位,然后进行解列以保证解列后的系统能稳定运行,将损失降到最小。首先,介绍了产生失步振荡的原理及危害。然后,针对当今国内外电网发生失步振荡时产生的危害,分别从就地信息和广域信息两方面对失步振荡中心定位方法进行归纳总结,并对新能源并网场景下影响失步振荡中心迁移的因素进行综述。最后,提出今后研究重点是将基于就地信息定位方法与广域信息方法相结合定位失步振荡中心,以及研究风速波动、光伏电源的控制技术、接入位置、是否有浮云遮挡、不同的功率控制方式、光伏电源的渗透率等关键性因素对并网系统失步振荡中心的影响。
The safe and stable operation of the power system is particularly important. When the power system has various types of faults causing out-of-step oscillation of the system, the out-of-step oscillation center of the system needs to be accurately positioned, and then de-listed to ensure stable operation of the system after the disassembly. Minimize losses. Firstly, the principle and hazard of out-of-step oscillation are introduced. Then, aiming at the hazards caused by out-ofstep oscillation in power grids at home and abroad, the location methods of out-of-step oscillation centers are summarized from local information and wide-area information, and the factors that affect the migration of out-of-step oscillation centers in new energy grid-connected scenarios are summarized. Finally, the focus of future research is to combine the local information localization method with the wide-area information method to locate the out-of-step oscillation center, and to study the wind speed fluctuation, the control technology of the photovoltaic power source, the access location, whether there is cloud occlusion, and different power control. The influence of key factors such as the mode and the penetration rate of photovoltaic power supply on the out-of-step oscillation center of the grid-connected system.
The safe and stable operation of the power system is particularly important. When the power system has various types of faults causing out-of-step oscillation of the system, the out-of-step oscillation center of the system needs to be accurately positioned, and then de-listed to ensure stable operation of the system after the disassembly. Minimize losses. Firstly, the principle and hazard of out-of-step oscillation are introduced. Then, aiming at the hazards caused by out-ofstep oscillation in power grids at home and abroad, the location methods of out-of-step oscillation centers are summarized from local information and wide-area information, and the factors that affect the migration of out-of-step oscillation centers in new energy grid-connected scenarios are summarized. Finally, the focus of future research is to combine the local information localization method with the wide-area information method to locate the out-of-step oscillation center, and to study the wind speed fluctuation, the control technology of the photovoltaic power source, the access location, whether there is cloud occlusion, and different power control. The influence of key factors such as the mode and the penetration rate of photovoltaic power supply on the out-of-step oscillation center of the grid-connected system.
引文
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[3]刘奇.并网风电对电网失步振荡及解列措施的影响研究[D].安徽:合肥工业大学,2016.LIU Qi.Study on the influence of grid-connected wind power on out-of-step oscillation and disconnection measures of power grid[D].Anhui:Hefei University of Technology,2016.
[4]刘斯伟,李庚银,周明,等.双馈风电机组对并网电力系统暂态稳定性的影响模式分析[J].电网技术,2016,40(2):471-476.LIU Si-wei,LI Geng-yin,ZHOU Ming,et al.Analysis of the influence mode of doubly-fed wind turbines on transient stability of grid-connected power systems[J].Power Grid Technology,2016,40(2):471-476.
[5]刘福锁,方勇杰,李威,等.多频振荡下的失步振荡中心变化规律及其定位[J].电力系统自动化,2014,38(20):68-73.LIU Fu-suo,FANG Yong-jie,LI Wei,et al.The variation law and location of out-of-step oscillation centerundermultifrequencyoscillation[J].AutomationofElectricPower Systems,2014,38(20):68-73.
[6]刘福锁,方勇杰,吴雪莲,等.导致振荡中心迁移的基本因素及其敏感性分析[J].中国电机工程学报,2017,37(6):1695-1702.LIU Fu-suo,FANG Yong-jie,WU Xue-lian,et al.The basic factors leading to the migration of oscillation center and its sensitivity analysis[J].Proceedings of the CSEE,2017,37(6):1695-1702.
[7]陈恩泽,唐飞,刘涤尘,等.振荡中心迁移下的电网失步解列策略[J].中国电机工程学报,2014,34(22):3799-3805.CHEN En-ze,TANG Fei,LIU Di-chen,et al.Out-of-step disengagement strategy for power grids under oscillation center migration[J].Proceedings of the CSEE,2014,34(22):3799-3805.
[8]夏成军,陈翠琼,涂亮,等.多频振荡下失步解列判据的适用性分析[J].电力系统自动化,2016,40(4):26-31.XIA Cheng-jun,CHEN Cui-qiong,TU Liang,et al.Applicability Analysis of Out-of-Step Dissolution Criterion under Multi-Frequency Oscillation[J].Automation of Electric Power Systems,2016,40(4):26-31.
[9]刘佳乐,唐飞,廖清芬.基于电压相角轨迹的多频系统失步振荡中心定位及预警策略[J].中国电机工程学报,2017,37(14):4070-4078,4286.LIU Jia-le,TANG Fei,LIAO Qing-fen.The Centering and Early Warning Strategy of Out-of-Step Oscillation for Multi-Frequency Systems Based on Voltage Phase Angle Trajectory[J].Proceedings of the CSEE,2017,37(14):4070-4078,4286.
[10]黄少锋,申洪明,赵远.测量阻抗的振荡轨迹识别[J].电力自动化设备,2015,35(6):82-86.H U A N G S h a o-f e n g,S H E N H o n g-m i n g,Z H A O Y uan.Oscillation Trajectory Identification of Measurement Impedance[J].Electric Power AutomationEquipment,2015,35(6):82-86.
[11]RAMIREZ,JUAN M,JAVIER C G,et al.Power Systems Decentralized Optimization[J].International Journal ofEmerging Electric Power Systems,2014,15(6):545-556.
[12]张艳霞,蒙高鹏,赵冉,等.复杂场景下失步中心定位及振荡中心漂移规律[J].电网技术,2015,39(8):2264-2269.ZHANGYan-xia,MENG Gao-peng,ZHAO Ran,et al.Rules of step-loss center positioning and oscillation center drift in complex scenes[J].Power Grid Technology,2015,39(8):2264-2269.
[13]侯俊贤,韩民晓,汤涌,等.机电暂态仿真中振荡中心的识别方法及应用[J].中国电机工程学报,2013,33(25):61-67.H O U J u n-x i a n,H A N M i n-x i a o,T A N G Y o n g,e t a l.Identification method and application of oscillation center in electromechanical transient simulation[J].Proceedings of the CSEE,2013,33(25):61-67.
[14]侯俊贤,韩民晓,董毅峰,等.基于振荡中心和电压形态的暂态功角失稳和电压失稳判断方法[J].电网技术,2016,40(5):1509-1515.HOU Jun-xian,HAN Min-xiao,DONG Yi-feng,et al.Judgment method of transient power angle instability and voltage instability based on oscillation center and voltage form[J].Power Grid Technology,2016,40(5):1509-1515.
[15]杨健,党杰,廖清芬,等.基于改进ucosφ的电网振荡解列判据研究[J].陕西电力,2013,41(9):1-4.YANG Jian,DANG Jie,LIAO Qing-fen,et al.Research on grid oscillation dissociation criterion based on improved ucosφ[J].Shaanxi Electric Power,2013,41(9):1-4.
[16]刘志雄,张艳霞,冯康恒,等.基于广域信息跟踪电力系统振荡中心的方法及应用[J].电网技术,2014,38(6):1694-1699.LIU Zhi-xiong,ZHANG Yan-xia,FENG Kang-heng,et al.Method and application of tracking power system oscillation center based on wide area information[J].Power Grid Technology,2014,38(6):1694-1699.
[17]方勇杰,刘福锁,李碧君,等.关于大电网失步解列控制研究的综述[J].中国电机工程学报,2017,37(18):5256-5265,5524.FANG Yong-jie,LIU Fu-suo,LI Bi-jun,et al.A review of the research on out-of-step disengagement control of large power grids[J].Proceedings of the CSEE,2017,37(18):5256-5265,5524.
[18]HANIEH M,MARYAM D.PMU based voltage security assessment of power systems exploiting principal component analysis and decision trees[J].International Journal of Electrical Power and EnergySystems,2015,64:655-663.
[19]唐飞,杨健,刘涤尘,等.基于电压频率特性的大区联网失步振荡中心研究[J].高电压技术,2015,41(3):754-761TANG Fei,YANG Jian,LIU Di-chen,et al.Study on largearea network out-of-step oscillation center based on voltagefrequency characteristics[J].High Voltage Engineering,2015,41(3):754-761.
[20]FANDINO J S,PASCUAL M.Analysis of system imperfections in a photonics-assisted instantaneousfrequency measurement receiver based on a dual-sideband suppressed-carrier modulation[J].Journal of Lightwave Technology,2015,33(2):293-303.
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