ZHAO Jinquan,YANG Ting,YAO Jianguo,et al.Transmission Congestion Management Based on Transmission and Distribution Coordination in Spot Power Market[J].Automation of Electric Power Systems,2020,44(7):107-114.
ZHAO Jinquan,YANG Ting,YAO Jianguo,et al.Transmission Congestion Management Based on Transmission and Distribution Coordination in Spot Power Market[J].Automation of Electric Power Systems,2020,44(7):107-114. DOI: 10.7500/AEPS20190409001.
Transmission Congestion Management Based on Transmission and Distribution Coordination in Spot Power Market
The controllable resources in both transmission grid and distribution grid should be considered coordinately in the transmission congestion management in the spot power market. In view of the ability of a virtual power plant (VPP) to effectively integrate distributed generators (DGs) to participate in power market
a bi-level optimization model based on transmission and distribution coordination for transmission congestion management in the spot power market is established
in which a distribution grid is equivalent to a VPP. The transmission congestion caused by voltage over-limit and branch/interface power over-limit are considered at the transmission grid level
in order to realize the coordination optimization of VPPs and thermal units. The VPP level considers the participation of controllable DGs and interruptible load
and satisfies the security constraints of distribution grid. Through the interaction between the two levels
economic utilization of global resources of transmission and distribution grids is realized. Meanwhile
a more reasonable price signal is given. Simulation results on an integrated test system of IEEE 30-node transmission grid and 3-feeder 16-node distribution grid show that the proposed model and method are effective.
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