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抛物线法在电力市场等报价中的应用

Application of Parabolic Method in Equal Bidding for Electric Power Market
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摘要 电网购电边际成本最低是电力市场追寻的目标。采用等报价分配电网间各运行机组的发电功率可使电网边际成本COM最低 ,因此 ,等报价法在发电厂上网报价中具有很重要的作用。等报价的计算方法有线性方程组法、牛顿内插法、牛顿外插法、合成曲线法、夹板二分法。这些方法都有各自的局限性 ,而等报价的抛物线法计算简单 ,可操作性较强 ,收敛较快。通过将抛物线法与上述 5种方法比较后得出 :抛物线法在电厂供电上网等报价中是较好的一种方法。 The lowest marginal cost in electricity purchase of power network is the pursuing target in the power market. Application of equal-quotation to distribute the generation power of all units under operation between the power networks can reduce the net marginal cost C OM to the minimum. So the equal quotation method has played an important role in the net quotation of the power plants. The calculation for equal quotation has the following methods: linear equation group, Newton interpolation, Newton extrapolation, resultant curve and clamped plate dichotomy. All these methods have their own limitations, while the parabolic method of equal quotation is simple in calculation, good in operation and quick in convergence. The comparison of the parabolic method with the above mentioned 5 methods shows that the parabolic method is a relatively good method in the equal quotation for power plant to supply with power to the network.
作者 张金霞
机构地区 青海大学
出处 《电力建设》 北大核心 2002年第9期63-66,共4页 Electric Power Construction
关键词 电力市场 发电竞价 等报价法 抛物线法 etectric power market bidding of power generation equal bidding method parabolic method
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