Low-Carbon Economic Dispatch considering carbon capture unit and demand response under carbon trading

Abstract

The power system needs to coordinate the economic dispatch and the carbon emission under the carbon market. The CO 2 emission characteristics of different generation resources arc analyzed, then generation resources are divided into three categories: high , low and zero carbon emission. Considering the carbon capture unit and the demand response, the Low-Carbon Economic Dispatch model is established with carbon trading cost included in the objective function. To take the uncertainty of carbon price caused by multiple uncertain factors into consideration, a new low-carbon economic dispatch model is built, which uses Conditional Value-at-Risk(CVaR) method to recalculate the carbon trading cost. The YALMIP software is applied to solve the proposed model. The case studies show that low-carbon economic dispatch can improve the utilization of low-carbon and zero-carbon generation resources under carbon trading framework and the dispatch results are affected by the changes of carbon price greatly. Furthermore, with confidence level of carbon price uncertainty rising, the dispatch costs and carbon emissions increase accordingly.