Economic Dispatch and Efficiency Evaluation of Power System Considering the Price Response of Plug-In Electric Vehicles
This paper proposes a price response model of plug-in electrical vehicle (PEV),by combining reference price (RP) and prospect theory with PEV running characteristics and simulating the psychological behavior of the driver.The price response model is introduced to the day-ahead scheduling model under the market mechanism to study the PEV load influence on day-ahead scheduling result,and the scheduling model is simulatedon a typical tenunit system.With the interaction between the clearing price and the PEV load,the stabilized day-ahead market clearing price (MCP) and the correspondent PEV load are calculated.Our results show that under a fixed unit commitment,as the number of PEV increases,the peak to valley difference of the system will gradually decline while the total purchase cost increases in a very slow pace.Meanwhile,the larger the number of PEV is,the more influence it has on the formation of MCP.The peak shaving and valley filling of PEV load will slightly increase the price of offpeak hours and decrease that of the peak hours.
plug-in electrical vehicle (PEV)reference priceprice responseprospect theorypower system economic dispatch