Research on Regional Spot Market Clearing Model Considering Subregional Power Exchange Constraints

Abstract

The goal of the power market is to optimize the allocation of power resources. The regional power spot market can expand the space of market optimization, which makes each sub-regional demand and resource sufficiently complemented, and it is an important part of the power spot market. The difficulty of clearing the regional spot market lies in the following two aspects. One is to take into account the different power market models of each sub-region, and the other is that the regional clearing results can ensure the safety of the power system in each sub-region. This article proposes a dual-layer model that contains the power exchange constraints of the sub-region. Its boundary conditions that are based on the unit commitment results of each sub-region clearing model are used for regional spot market clearing. It is compatible with the possible power spot market model of each sub-region, but also fully considers the clearance of the sub-region. At the same time, it ensures that the regional clearing results will not affect the safe operation of the system in each sub-region. The article verifies the validity of the design area through calculation, and analyzes the clearing effect of the regional market.