Study Of Evaluation Standards And Simulation For AGC In Electric Market

In electric market, the generation company has been divided from the grid companyand it sells its power and ancillary service through market as an artificial person.Ancillary service is one of important characteristics. With the enlarging of grid andimprovement of automatic level, generators with AGC are getting more and more, andstudy of AGC ancillary service are getting more and more important. Because of theparticularity of AGC ancillary service, it is necessary to assess the quality of itafterwards.As to performance estimation of AGC generators, some different means have beenput forward. Quantitative evaluation the regulation efficiency and posterior assessmentbased on probability are the two representational means. In this paper these twomethods were compared and we got the conclusion that these standards presented bythese two method can only reflect elementary characteristics and can't show thedisciplinarian relation with area control standards, further more they are affected bysome uncontrollable factor. And so a new evaluation method is developed. Thecharacteristics of this new evaluation method including:1. Give the standard of area automatic generation control performance assignment thatdescribes the output of AGC generator and is consistent with CPS1 and CPS2.2. Allot the assignment according to responsibility of every generator and then getevaluation standards. Distinguish responsibility between generator and ISO throughcompensation exceeding instructions.3. All data used in this method can be found in existing energy manage systemdatabase, and it is unnecessary to add new measuring data.In the ending of this paper, this new method is proved to be valid by use of thesimulation of automatic generation control system.