基于比例潮流追踪的输电分摊计算方法

Calculation Method of Transmission Allocation Based on Proportional Power Flow Tracing

大电网经济效益计算中关键是对输电价的计算,输电价计算的核心是输电分摊,也就是把电网的成本按照合理的输电分摊方法分摊至各受电节点,从而形成该节点的输电价,以进一步计算输电经济效益。比例潮流追踪是在根据网络功率流动分布规律的基础上,依据节点功率比例分摊的原理计算输电分摊。通过比例潮流追踪解决如何计算到网电价,对交流输电网来说,也就是计算各受电端节点的到网节点电价。该方法能非常具体地计算每个输电受电节点对特高压输电网的使用情况,从而提高输电分摊计算的精确性、科学性以及电网经济效益分析的准确性。

In the calculation of economic benefits of large power grid,the key is the power transmission price calculation.The core of the power transmission price calculation is the power transmission allocation,that is,the cost of power grid is allocated to each receiving node according to a reasonable transmission allocation method,so as to form the transmission price of this node and further calculate the economic benefits of power transmission.Proportional power flow tracing is based on the distribution of network power flow and the principle of node power proportional allocation.This paper solves how to calculate the grid price through the proportional power flow tracing,for the AC power grid,that is,to calculate the grid node price in the receiving area.This method can calculate the use of UHV transmission network for each transmission receiving node,so as to improve the accuracy and scientificity of transmission allocation calculation and the accuracy of economic benefit analysis.