The Study on Collaborative based Marketing Sales Strategy
Chen Qun1, LI Fang2
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12C) 333-338
1 Hubei Polytechnic University, Huangshi Hubei, 435003, China
2 Hubei Normal University, Huangshi Hubei, 435002, China
Deregulation of electricity markets throughout the world requires that markets be constructed so as to insure low prices and high efficiencies. However, the electricity markets are always oligopoly markets rather than being perfect competitive ones because of the special features of the power system such as a limited number of producers, large size of the investment (barrier to entry), transmission constraints which may isolate consumers from some generators, and transmission losses which may discourage consumers from purchasing from distant suppliers. Market power (MP) is the ability of a firm to raise its price significantly above the competitive price level and to maintain this high profitable price for a considerable period. This ability is usually linked to the size of the companies with respect to the whole market, which is known as market concentration. In this paper, we propose a method based on the SF in which the producers bid the slope of the SF to simulate the strategic bidding behaviour of producers under the network constraints with a DC power flow model. Different situations will be considered in order to analyse the different impacts on producer surplus and average weighted prices in network constrained electricity markets: the perfect competition without network constraints, the perfect competition with network constraints, the oligopoly condition with network constraints in which the line flow limit is unknown to producers when they bid strategically, and the oligopoly condition with network constraints in which the line flow limit is known to producers when they bid strategically.