A Study On A Generate Bid System In Power Markets

In a power market , a generate bid system is an important subsystem of a power market operation system . It is a base to schedule the annual maintenance and monthly maintenance , daily generate capability and bids of a power plant. The bid system is an intelligent one in which the bids are stated to ISO by using of the transaction manage system .In a power market, the market order determines that the power plants who invite bid lower would sell their power . So the generate bid system has been focused on because it has influenced on the benefits and the operation of power plants and power systems .A bid system may change their methods of bidding by reasons of a power market environment or the operating of s specific power plant. The bid system is random and real-time , so it is difficult to get the benefit as large as possible for a specific power plant by inviting bids .In this paper , a generate bid system in a power market in pool mode is presented . based on that the bid would de stated on the sociality power cost rather than special power cost of a specific power plant. The power plants should schedule properly the commitment of their generating units and calculate the power cost in a power market, and then the bids will be invited .The main research work is described as follow : 1. According to the prediction of the next day's load , the marginal price can be calculated by aid of operation scheduling . So the conditions of next day's power market can be forecasted very well. 2 . A new method of forecasting the future load that would be provided by a specific power plant by using of artificial neural network . 3 . For gaining the minimize of power generation cost of some special power plant, the problem of optimization of generate unit commitment are solved dynamicprogramming . 4 . Based on the study of the principal of generate bid system in power market, a new general construction and a scheme are presented . 5 . With the help of the computer multimedia , a practical auxiliary decision system of a technology generate bidding system in a power market is created .Some practical conclusions are presented , and the feasible results are shown in this paper by deducing in theory and showing the result of computation example.