The Comprehensive Optimal Scheduling Model of Power Supply and Demand Considering Network Constraints

With the establishment of the electricity market mechanisms, all of the market participants are in pursuit of maximizing their own interests, and this inevitably causes the network congestion phenomenon appearing in some lines around the power plants which have the lower price. The traditional power grid eliminates congestion mainly through the load shedding. With the upgrading of the interactive capabilities of "Source-Net-Load", flexible load participating in grid scheduling plays a very cost-effective role in solving grid congestion problems. Based on flexible load involved in DR scheduling, to maximize comprehensive benefit, this article establishes the comprehensive optimal scheduling model of power supply and demand considering network constraints. By forming the optimal price and incentives, the model realizes the coordinated scheduling of power supply and demand, and maximizes comprehensive be ne fit at the basis of alleviating the congestion effectively. The optimization model is proved effective and economic with the example of five nodes system.