Growing electric power demand and the consumption of large-scale renewable energy require a more efficient power supply network,with less occupied areas in load centers.In this paper,application principles of power su...Growing electric power demand and the consumption of large-scale renewable energy require a more efficient power supply network,with less occupied areas in load centers.In this paper,application principles of power supply network based on 500/110 kV direct transformation are proposed.An in-depth analysis of the grid structure and substation design is presented along with an application scenario.An accessibility index based on power flow tracing for network evaluation is also proposed.The index is able to present the inner connectivity and power transferability of a power network.A comprehensive evaluation of traditional short circuit,load flow,N-1,economic calculation,and the accessibility index are conducted on the power grid planning of a high-tech industrial park in Wuhan,China.Finally,electric feasibility and reliability are validated,and accessibility and construction investments compared.展开更多
基金supported in part by the National Natural Science Foundation of China under Grant 51277082in part by Huang He Ying Cai Funding of Wuhanin part by State Grid Hubei Electric Power Company.
文摘Growing electric power demand and the consumption of large-scale renewable energy require a more efficient power supply network,with less occupied areas in load centers.In this paper,application principles of power supply network based on 500/110 kV direct transformation are proposed.An in-depth analysis of the grid structure and substation design is presented along with an application scenario.An accessibility index based on power flow tracing for network evaluation is also proposed.The index is able to present the inner connectivity and power transferability of a power network.A comprehensive evaluation of traditional short circuit,load flow,N-1,economic calculation,and the accessibility index are conducted on the power grid planning of a high-tech industrial park in Wuhan,China.Finally,electric feasibility and reliability are validated,and accessibility and construction investments compared.
