Study And Application Of The Ancillary Services On The Power Generation Side

The ancillary services are refer to the services besides the normal energy productions provided by the power plant, in order to safeguard the electrical power system security, promote the electric power transaction and guaranty the electric power supply. The transaction mechanism of ancillary service market is one of the important research fields, which includes a series of problems: how to build scientific and rational operating mechanism, how to quantize ancillary service and set its reasonable price,how to coordinate the relationship between ancillary service and power energy market, and how to coordinate the relationship among all kinds of ancillary services and so on.The preliminary research to the electricity market and the ancillary services as well as economical compensation is done, its present situation and the characteristic of our electricity market and the ancillary services is introduced. AGC,reserve, frequency modulation, and reactive are major research subject.1. The cost of the power plant to provide AGC, spinning reserve and reactive and constructed the mathematic model is analyzed. It can be calculated using the data of the SIS and ERP sysyems through the ancillary services management system.2. The performance calculation formula of the AGC and frequency modulation and the economical component measure are set up. Based on AHP-Analytic Hierarchy, a comprehensive method to evaluate the AGC units which is applied for the AGC auction is proposed. Electrical enterprise can choose the AGC units according to the AHP evaluating result, the successful bidding AGC units can settle accounts with the help of the modulating efficiency coefficient. With the performance evaluating function of the management system, it can be quantized of AGC and frequency modulation using the data from SIS system of the electric power plant.3. The relationship between the main energy market and the ancillary market is analyzed , some view about the joint bidding of AGC, energy and reserve are proposed.4. The main frame of the management system is constructed, used the figure of the power plant to perform the calculation and inquiry of the cost and the performance of the ancillary services.The ancillary services management system of Wujing power plant No.2 is helpful to the personnel to master the performance of the ancillary services. It is more profitable for personnel to use the management system to make the reasonable marketing judgment.