抄録
Recently, basic framework of electric power systems has been changed greatly by deregulation of electric power industry. Independent Power Producers (IPPs) or Power Producer and Suppliers (PPSs) as new entrants are increasing in the power generation division. For power system stability, conventional electric utilities and PPSs have to take a balance between supply and demand. More specifically, PPSs maintain the difference between energy supplied by generators and energy consumed by demand within fluctuation range of the 30-minute balancing rule and, general electric utilities eliminate its imbalance in the whole power system.
This paper investigates PPSs' effects of retail wheeling from both sides of PPSs and a general electric utility. First, from the point of PPSs, it presents a control method of generators under the condition where PPSs produce electric power economically. And from the point of a general electric utility, it evaluates the generation capacity for load frequency control as effect of retail wheeling on the frequency control. The validity of the proposed technique and influence evaluation to the frequency control are shown by the simulation which MATLAB/Simulink is used for.
