This paper introduces the current situation of China power industry and interconnection, the necessity to develop interconnection, the principle of nationwide interconnection and the key technologies to be studiedincl...This paper introduces the current situation of China power industry and interconnection, the necessity to develop interconnection, the principle of nationwide interconnection and the key technologies to be studiedinclude HVDC and FACTS. The paper also discusses thefeasibility of 750 kV to be used in the northwest.regionand to speed up research and development of nighervoltage level in other regions of China, as well as scl-ence and technical innovation for transmission and dis-tribution projects.展开更多
In light of the situation that the nationwide interconnection of power networks in China in the coming years will take shape, it is imperative to emphasize the importance of setting up rational power network configura...In light of the situation that the nationwide interconnection of power networks in China in the coming years will take shape, it is imperative to emphasize the importance of setting up rational power network configuration. Combined with the characteristics of regional power networks in China, problems in network planning that need to be solved are put forward in this paper, such as, the access of power plants to grid by layers and zones, the share of external power in the load of local network, the power network configuration study in-depth in planning and design stage, and enforcement of receiving-end power network trunk etc. The background of these problems and their countermeasures are also analyzed in the paper.展开更多
构建具有可靠供电能力的低压配电网具有重要意义,然而低压配电网供电能力受到低压配电变压器负载、低压配电网新能源消纳能力以及低压配电网供电电压3大要素影响。因此,该文基于低压配电网柔性互联技术提出考虑供电能力提升的低压配电...构建具有可靠供电能力的低压配电网具有重要意义,然而低压配电网供电能力受到低压配电变压器负载、低压配电网新能源消纳能力以及低压配电网供电电压3大要素影响。因此,该文基于低压配电网柔性互联技术提出考虑供电能力提升的低压配电网柔性互联规划方法,通过抽取影响低压配电网供电能力的主要场景建立低压配电网柔性互联规划框架。另外,针对该文多主体规划运行模型的不确定性,采用信息间隙决策理论(information gap decision theory,IGDT)与基于Wasserstein距离的分布鲁棒方法进行精细化建模。最后,采用MATLAB和CPLEX求解器在IEEE 38节点配电网上进行算例分析。仿真结果表明,该规划方法在有效提升低压配电网供电能力的同时具有更好的经济性。展开更多
文摘This paper introduces the current situation of China power industry and interconnection, the necessity to develop interconnection, the principle of nationwide interconnection and the key technologies to be studiedinclude HVDC and FACTS. The paper also discusses thefeasibility of 750 kV to be used in the northwest.regionand to speed up research and development of nighervoltage level in other regions of China, as well as scl-ence and technical innovation for transmission and dis-tribution projects.
文摘In light of the situation that the nationwide interconnection of power networks in China in the coming years will take shape, it is imperative to emphasize the importance of setting up rational power network configuration. Combined with the characteristics of regional power networks in China, problems in network planning that need to be solved are put forward in this paper, such as, the access of power plants to grid by layers and zones, the share of external power in the load of local network, the power network configuration study in-depth in planning and design stage, and enforcement of receiving-end power network trunk etc. The background of these problems and their countermeasures are also analyzed in the paper.
文摘构建具有可靠供电能力的低压配电网具有重要意义,然而低压配电网供电能力受到低压配电变压器负载、低压配电网新能源消纳能力以及低压配电网供电电压3大要素影响。因此,该文基于低压配电网柔性互联技术提出考虑供电能力提升的低压配电网柔性互联规划方法,通过抽取影响低压配电网供电能力的主要场景建立低压配电网柔性互联规划框架。另外,针对该文多主体规划运行模型的不确定性,采用信息间隙决策理论(information gap decision theory,IGDT)与基于Wasserstein距离的分布鲁棒方法进行精细化建模。最后,采用MATLAB和CPLEX求解器在IEEE 38节点配电网上进行算例分析。仿真结果表明,该规划方法在有效提升低压配电网供电能力的同时具有更好的经济性。
