基于分区电价的跨区电力调度双层优化模型

In order to fully use the inter-regional dispatch resource，a bi-level optimization model of inter-regional power dispatch based on regional electricity price is proposed. The equivalent generation cost curve is adopted to model the output of coal-fired units within the regions，and the chance constraint method based on integer programming is adopted to model the output of wind power and photovoltaic. A bi-level optimization model suitable for hierarchical dispatch mode is established. As the superior dispatch organization，the upper level model takes the inter-regional transmission power as the decision variables，and takes the maximum value of inter-regional transmission electricity as the goal. The lower level model realizes the economic dispatch within the regions. The bi-level model is transformed into a single-level model for solution according to Karush-Kuhn-Tucker（KKT） condition. The example results verify the effectiveness of the proposed model，which maintains a certain electricity price difference between the power sending region and power receiving region，and alleviates the power supply and demand contradiction in the power receiving region by transmitting a small amount of electricity.