A Joint Market-Clearing Mechanism for Energy Storage Participating in the Electricity Energy and Frequency Modulation Ancillary Service Market Based on the Conic Economics
摘要
Nowadays, although the traditional electricity market clearing mode of energy storage(ES) participation based on linear programming(LP) theory planning has been widely used, it can not accurately describe the nonlinear cost characteristics of the market, and can not cope with some unexpected situations in the market. Meanwhile, ES, which enhances power supply reliability and participates in auxiliary services, can generate better profits and better operations in the market. To solve the above market-clearing problems under the traditional LP theory, this paper mainly discusses the joint clearing mechanism of ES participating in the electricity energy-frequency modulation auxiliary service market(EE-FMASM) based on conic economics(CE). Firstly, the trading mode of ES participating in the EE-FMASM under the CE is proposed. Secondly, the ES transaction decision model within the EE-FMASM framework under CE is introduced. The numerical results show increased market profitability for the ES plant when conic economic factors are accounted for. The power market can still run stably when the load increases at a specific time.