自适应外部环境的电网安全稳定控制措施集的在线动态调整
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摘要
电力系统在线安全稳定控制决策优化需要综合考虑电网实时运行工况、外部环境及其对电网影响情况和各类安全稳定控制的特点,需采用有效的算法对可用的安全稳定控制措施集进行动态调整,以保证辅助决策结果的可行性与经济性。提出一种根据电网运行的外部环境变化动态调整安全稳定候选控制措施集的方法。该方法根据电网的实时运行工况、灾害引发输电线路故障概率等信息,在线动态识别受外部环境影响的厂站、设备(含负荷母线)及受影响程度,再根据设备受影响的情况自动修正相应控制措施的调节范围和调节代价,从而使得预防控制结果适应外部环境的变化,并以实际电网算例验证了方法的有效性。
Optimization of the online security and stability control decisions for power system needs to consider real-time operating conditions,the external environment and its impact on the grid conditions and the characteristics of various types of security and stability control,and efficient algorithms can be used to dynamically adjust the security and stability of the available control measures set to ensure that the results of the supporting decisions are feasible and economical.This paper presents a method for dynamically adjusting the security and stability candidate control measures set according to changes in the external environment of the grid operation.According to real-time operating conditions of the power grid and the probability of failure of transmission lines caused by disasters and other information,this method can identify the affected substation and equipment(including the load bus)and the extent of the impact of the external environment,and then automatically correct the conditions of the affected equipment and adjust the range and cost so that the prevention control results adapt to changes in the external environment.The actual grid examples demonstrate the effectiveness of the method.
Optimization of the online security and stability control decisions for power system needs to consider real-time operating conditions,the external environment and its impact on the grid conditions and the characteristics of various types of security and stability control,and efficient algorithms can be used to dynamically adjust the security and stability of the available control measures set to ensure that the results of the supporting decisions are feasible and economical.This paper presents a method for dynamically adjusting the security and stability candidate control measures set according to changes in the external environment of the grid operation.According to real-time operating conditions of the power grid and the probability of failure of transmission lines caused by disasters and other information,this method can identify the affected substation and equipment(including the load bus)and the extent of the impact of the external environment,and then automatically correct the conditions of the affected equipment and adjust the range and cost so that the prevention control results adapt to changes in the external environment.The actual grid examples demonstrate the effectiveness of the method.
引文
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[9]王昊昊,李碧君,徐泰山,等.互联电网应对极端外部灾害的调度防御技术的评述[J].华东电力,2012,40(1):35-40.WANG Haohao,LI Bijun,XU Taishan,et al.A review on dispatching defense techniques for external disasters in interconnected grids[J].East China Electric Power,2012,40(1):35-40(in Chinese).
[10]谢云云,薛禹胜,王昊昊,等.电网雷击故障概率的时空在线评估[J].电力系统自动化,2013,37(17):44-51.XIE Yunyun,XUE Yusheng,WANG Haohao,et al.Spacetime online evaluation of power grid fault probability by lightning[J].Automation of Electric Power Systems,2013,37(17):44-51(in Chinese).
[11]邵振国,林智敏,林韩,等.在线安全预警中的预想事故生成[J].电力系统自动化,2008,32(7):15-18.SHAO Zhenguo,LIN Zhimin,LIN Han,et al.Online determination of predictive contingency in security forewarning analysis[J].Automation of Electric Power Systems,2008,32(7):15-18(in Chinese).
[12]薛禹胜,王昊昊,吴勇军.台风引发输电线路故障的概率评估方法:中国,201110457145.0[P].2011-12-31.XUE Yusheng,WANG Haohao,WU Yongjun.An assessment method for fault probability of transmission lines caused by typhoon:China,201110457145.0[P].2011-12-31(in Chinese).
[2]王昊昊,罗建裕,徐泰山,等.中国电网自然灾害防御技术现状调查与分析[J].电力系统自动化,2010,34(23):5-10.WANG Haohao,LUO Jianyu,XU Taishan,et al.Questionnaire survey and analysis of natural disaster defense techniques of power grids in China[J].Automation of Electric Power Systems,2010,34(23):5-10(in Chinese).
[3]薛禹胜,费圣英,卜凡强.极端外部灾害中的停电防御系统构思:(一)新的挑战与反思[J].电力系统自动化,2008,32(9):1-6.XUE Yusheng,FEI Shengying,BU Fanqiang.Upgrading the blackout defense scheme against extreme disasters:part I new challenges and reflection[J].Automation of Electric Power Systems,2008,32(9):1-6(in Chinese).
[4]薛禹胜,费圣英,卜凡强.极端外部灾害中的停电防御系统构思:(二)任务与展望[J].电力系统自动化,2008,32(10):1-5.XUE Yusheng,FEI Shengying,BU Fanqiang.Upgrading the blackout defense scheme against extreme disasters:part II tasks and prospects[J].Automation of Electric Power Systems,2008,32(10):1-5(in Chinese).
[5]薛禹胜,李威,HILL D J.暂态稳定混合控制的优化:(一)单一失稳模式的故障集[J].电力系统自动化,2003,27(20):6-10.XUE Yusheng,LI Wei,HILL D J.Optimal hybrid control of transient stability:part one for cases with a unique unstable mode[J].Automation of Electric Power Systems,2003,27(20):6-10(in Chinese).
[6]李威,薛禹胜,HILL D J.暂态稳定混合控制的优化:(二)不同失稳模式的故障集[J].电力系统自动化,2003,27(21):7-10.LI Wei,XUE Yusheng,HILL D J.Optimal hybrid control of transient stability:part two for cases with different unstable modes[J].Automation of Electric Power Systems,2003,27(21):7-10(in Chinese).
[7]陈永红,薛禹胜.区域紧急控制的优化算法[J].中国电力,2000,33(1):44-48.CHEN Yonghong,XUE Yusheng.Optimal algorithm for regional emergency control[J].Electric Power,2000,33(1):44-48(in Chinese).
[8]侯玉强,李威.大规模光伏接纳对电网安全稳定的影响及相关制约因素分析[J].电网与清洁能源,2013,29(4):73-78.HOU Yuqiang,LI Wei.Influence of integration of largescale photovoltaic on grid and key factors restricting its accepted capacity[J].Power System and Clean Energy,2013,29(4):73-78(in Chinese).
[9]王昊昊,李碧君,徐泰山,等.互联电网应对极端外部灾害的调度防御技术的评述[J].华东电力,2012,40(1):35-40.WANG Haohao,LI Bijun,XU Taishan,et al.A review on dispatching defense techniques for external disasters in interconnected grids[J].East China Electric Power,2012,40(1):35-40(in Chinese).
[10]谢云云,薛禹胜,王昊昊,等.电网雷击故障概率的时空在线评估[J].电力系统自动化,2013,37(17):44-51.XIE Yunyun,XUE Yusheng,WANG Haohao,et al.Spacetime online evaluation of power grid fault probability by lightning[J].Automation of Electric Power Systems,2013,37(17):44-51(in Chinese).
[11]邵振国,林智敏,林韩,等.在线安全预警中的预想事故生成[J].电力系统自动化,2008,32(7):15-18.SHAO Zhenguo,LIN Zhimin,LIN Han,et al.Online determination of predictive contingency in security forewarning analysis[J].Automation of Electric Power Systems,2008,32(7):15-18(in Chinese).
[12]薛禹胜,王昊昊,吴勇军.台风引发输电线路故障的概率评估方法:中国,201110457145.0[P].2011-12-31.XUE Yusheng,WANG Haohao,WU Yongjun.An assessment method for fault probability of transmission lines caused by typhoon:China,201110457145.0[P].2011-12-31(in Chinese).