The optimization of black-start decision-making plays an important role in the rapid restoration of a power system after a major failure/outage.With the introduction of the concept of smart grids and the development o...The optimization of black-start decision-making plays an important role in the rapid restoration of a power system after a major failure/outage.With the introduction of the concept of smart grids and the development of real-time communication networks,the black-start decision-makers are no longer limited to only one or a few power system experts such as dispatchers,but rather a large group of professional people in practice.The overall behaviors of a large decision-making group of decision-makers/experts are more complicated and unpredictable.However,the existing methods for black-start decision-making cannot handle the situations with a large group of decision-makers.Given this background,a clustering algorithm is presented to optimize the black-start decision-making problem with a large group of decision-makers.Group decision-making preferences are obtained by clustering analysis,and the final black-start decision-making results are achieved by combining the weights of black-start indexes and the preferences of the decision-making group.The effectiveness of the proposed method is validated by a practical case.This work extends the black-start decision-making problem to situations with a large group of decision-makers.展开更多
在大量分布式电源接入配电网的新形势下,对基于分布式电源孤岛运行的配电网供电恢复及孤岛黑启动策略进行了研究。首先提出根据配电网场景优选孤岛划分模式的新思路,并以4种配电网场景为例,针对具体场景选择不同孤岛划分模式。然后分析...在大量分布式电源接入配电网的新形势下,对基于分布式电源孤岛运行的配电网供电恢复及孤岛黑启动策略进行了研究。首先提出根据配电网场景优选孤岛划分模式的新思路,并以4种配电网场景为例,针对具体场景选择不同孤岛划分模式。然后分析每个孤岛内的有功平衡,在DG出力无法满足全部负荷的情况下,搭建0-1整数背包模型,并采用动态规划算法,对孤岛内负荷进行了优化选择。孤岛黑启动操作时,为了实时保障黑启动过程中的孤岛稳定性,提出孤岛稳定裕度指标,评估孤岛稳定状态,随后根据稳定裕度指标制定了孤岛内电源和负荷的启动顺序。最后对10 k V典型配电系统进行了仿真分析,论证了停电区域因地制宜确定孤岛划分模式思路的可行性,同时验证了负荷选择策略和孤岛黑启动操作策略的正确性及有效性。展开更多
基金supported by National Natural Science Foundation of China (No.51007080)National High Technology Research and Development Program of China (863 Program) (No.2011AA05A105)+1 种基金the Fundamental Research Funds for the Central Universities (No.2012QNA4011)key project from Zhejiang Electric Power Corporation
文摘The optimization of black-start decision-making plays an important role in the rapid restoration of a power system after a major failure/outage.With the introduction of the concept of smart grids and the development of real-time communication networks,the black-start decision-makers are no longer limited to only one or a few power system experts such as dispatchers,but rather a large group of professional people in practice.The overall behaviors of a large decision-making group of decision-makers/experts are more complicated and unpredictable.However,the existing methods for black-start decision-making cannot handle the situations with a large group of decision-makers.Given this background,a clustering algorithm is presented to optimize the black-start decision-making problem with a large group of decision-makers.Group decision-making preferences are obtained by clustering analysis,and the final black-start decision-making results are achieved by combining the weights of black-start indexes and the preferences of the decision-making group.The effectiveness of the proposed method is validated by a practical case.This work extends the black-start decision-making problem to situations with a large group of decision-makers.
文摘在大量分布式电源接入配电网的新形势下,对基于分布式电源孤岛运行的配电网供电恢复及孤岛黑启动策略进行了研究。首先提出根据配电网场景优选孤岛划分模式的新思路,并以4种配电网场景为例,针对具体场景选择不同孤岛划分模式。然后分析每个孤岛内的有功平衡,在DG出力无法满足全部负荷的情况下,搭建0-1整数背包模型,并采用动态规划算法,对孤岛内负荷进行了优化选择。孤岛黑启动操作时,为了实时保障黑启动过程中的孤岛稳定性,提出孤岛稳定裕度指标,评估孤岛稳定状态,随后根据稳定裕度指标制定了孤岛内电源和负荷的启动顺序。最后对10 k V典型配电系统进行了仿真分析,论证了停电区域因地制宜确定孤岛划分模式思路的可行性,同时验证了负荷选择策略和孤岛黑启动操作策略的正确性及有效性。
