智能电网运行充裕性的研究框架 (二)问题与思路
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摘要
剖析了智能电网的发电—用电充裕性评估及控制任务。从需求、扰动、控制对象和控制时滞等方面梳理问题的复杂性;讨论充裕控制的决策过程,包括对信息的要求、待调控出力的预报、充裕性事件的设定、充裕度量化指标的定义、系统功率平衡与备用功率的动态行为、充裕度的在线评估、备用资源的调度与控制。提出基于风险观点的动态优化及解耦协调的求解思路,将整个问题解耦为不同子问题后分别优化,再通过协调获得全局准优化的效果。
This paper analyzes the assessment and control tasks of smart grid operation adequacy.The complexity of the problem is dissected in terms of demand,disturbance,controlled objects and time-lag.The decision-making process of adequacy control is also discussed including information acquisition,estimation of the needed dispatch power,parametrization of adequacy events,definitions of adequacy index,dynamics of power balancing and reserving,on-line adequacy assessment,dispatch and control of reserve resources.A risk-based conceptual model for dynamic optimization is presented,and a decoupling and coordination solution method is also proposed to give a global quasi-optimum result.
This paper analyzes the assessment and control tasks of smart grid operation adequacy.The complexity of the problem is dissected in terms of demand,disturbance,controlled objects and time-lag.The decision-making process of adequacy control is also discussed including information acquisition,estimation of the needed dispatch power,parametrization of adequacy events,definitions of adequacy index,dynamics of power balancing and reserving,on-line adequacy assessment,dispatch and control of reserve resources.A risk-based conceptual model for dynamic optimization is presented,and a decoupling and coordination solution method is also proposed to give a global quasi-optimum result.
引文
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[13]XUE Yusheng,CAI Bin,JAMES G,et al.Primary energy congestion of power systems[J].Journal of Modern Power Systems and Clean Energy,2014,2(1):39-49.
[2]HAN X S,GOOI H B,KIRSCHEN D S.Dynamic economic dispatch:feasible and optimal solutions[J].IEEE Trans on Power Systems,2001,16(1):22-28.
[3]中国人民共和国水利部.SD 131—84电力系统技术导则[S].北京:水利电力出版社,1984.
[4]BOUFFARD F,GALIANA F D.An electricity market with a probabilistic spinning reserve criterion[J].IEEE Trans on Power Systems,2004,19(1):300-307.
[5]薛禹胜,刘强,DONG Zhaoyang,等.关于暂态稳定不确定性分析的评述[J].电力系统自动化,2007,31(14):1-7.XUE Yusheng,LIU Qiang,DONG Zhaoyang,et al.A review of non-deterministic analysis for power system transient stability[J].Automation of Electric Power Systems,2007,31(14):1-7.
[6]薛禹胜,肖世杰.综合防御高风险的小概率事件:对日本相继天灾引发大停电及核泄漏事件的思考[J].电力系统自动化,2011,35(8):1-11.XUE Yusheng,XIAO Shijie.Comprehensively defending high risk events with low probability[J].Automation of Electric Power Systems,2011,35(8):1-11.
[7]薛禹胜,谢东亮,薛峰,等.智能电网运行充裕性的研究框架:(一)要素与模型[J].电力系统自动化,2014,38(10):1-9.XUE Yusheng,XIE Dongliang,XUE Feng,et al.A research framework for operation adequacy in smart grid:PartⅠelements and models[J].Automation of Electric Power Systems,2014,38(10):1-9.
[8]薛禹胜.时空协调的大停电防御框架:(一)从孤立防御到综合防御[J].电力系统自动化,2006,30(1):8-16.XUE Yusheng.Space-time cooperative framework for defending blackouts:PartⅠfrom isolated defense lines to coordinated defending[J].Automation of Electric Power Systems,2006,30(1):8-16.
[9]薛禹胜.时空协调的大停电防御框架:(二)广域信息、在线量化分析和自适应优化控制[J].电力系统自动化,2006,30(2):1-10.XUE Yusheng.Space-time cooperative framework for defending blackouts:PartⅡreliable information,quantitative analyses and adaptive controls[J].Automation of Electric Power Systems,2006,30(2):1-10.
[10]薛禹胜.时空协调的大停电防御框架:(三)各道防线内部的优化和不同防线之间的协调[J].电力系统自动化,2006,30(3):1-11.XUE Yusheng.Space-time cooperative framework for defending blackouts:PartⅢoptimization and coordination of defense-lines[J].Automation of Electric Power Systems,2006,30(3):1-11.
[11]中华人民共和国国务院.第599号令:电力安全事故应急处置和调查处理条例[S].2011.
[12]XUE Yusheng,XIAO Shijie.Generalized congestion of power systems:insights from the massive blackouts in India[J].Journal of Modern Power Systems and Clean Energy,2013,1(2):91-100.
[13]XUE Yusheng,CAI Bin,JAMES G,et al.Primary energy congestion of power systems[J].Journal of Modern Power Systems and Clean Energy,2014,2(1):39-49.