运用微观经济学理论研究了PowerPool模式中发电公司的竞价问题。首先 ,通过对寡头市场的均衡分析指出 ,PowerPool模式中发电公司采取策略性报价是寡头企业长期均衡的必然结果。其次 ,运用供给函数均衡分析指出 ,发电公司的优化报价策略是报价高于边际成本 ,发电公司的优化报价曲线经过发电公司面对其自身剩余需求曲线单独决策时的最优化点 ,市场的统一清除价必定等于发电公司面对其自身剩余需求曲线单独决策时的最优化点的价格 ,市场均衡解存在且惟一。最后 ,探讨了均衡解与市场力之间的关系 ,并通过分析差价合约对均衡解的影响发现差价合约可降低电力公司的市场力 Using the theory of microeconomics, the issue of bidding for generation companies in PowerPool model is studied. First of all, through the equilibrium analysis of oligopoly, it is pointed out that the strategic quotation of generation companies in PowerPool model is the inevitable result of the long-term equilibrium of oligopoly. Secondly, by using the equilibrium analysis of supply function, it is pointed out that the optimal bidding strategy of generation company is higher than the marginal cost. The optimization quotation curve of generation company passes through the optimization point when the generation company faces the decision of its own residual demand curve alone, The price must be equal to the price of the optimal point when the power generation company faces the separate decision-making of its own residual demand curve. The market equilibrium solution exists and is unique. Finally, the relationship between the equilibrium solution and the market power is discussed, and the effect of the CFD on the equilibrium solution is analyzed. Finding the CFD can reduce the market power of the power company