| Allocation of fixed transmission cost based on power flow tracing algorithm |
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| 作者姓名： | ZHANG Qian YU Ji-hui |
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| 作者单位： | High Voltage and Electrical Engineering New Technology Key Laboratory of Ministry of Education, Chongqing University, Chongqing 400030, P.R. China |
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| 摘 要： | 1 Introduction a In the electricity market, because the calculation of the traditional spot electricity price according to node transmission charging is based upon short-run marginal cost, it is impossible to recover the great one-off investment of the transmission network, and this results in the payment imbalance of the electric network. Therefore, such spot electricity price goes against and its modification is indispensable to the development of the power system, and it is necessary to mod…
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| 关 键 词： | 电力系统 电价 电力市场 功率通量追踪 成本分配 图论 路径搜索 |
| 文章编号： | 1671-8224（2005）04-0189-06 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005-10-10 |
Allocation of fixed transmission cost based on power flow tracing algorithm |
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| ZHANG Qian YU Ji-hui.Allocation of fixed transmission cost based on power flow tracing algorithm[J].Journal of Chongqing University,2005,4(4):189-194. |
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| Authors: | ZHANG Qian YU Ji-hui |
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| Abstract: | In the electricity market, charging based on the traditional spot electricity price often results in the payment imbalance of electric network, and goes against the development of the power system. So, it is necessary to modify the spot price. The key of the modification lies in how to calculate the fixed unit transmission cost of each node, that is how to allocate the fixed transmission cost to users.To solve this problem, we develop a power flow tracing algrithm to modify the spot price. We put forward a path searching method based on the graph theory after studying the fundamental principle of power flow tracing and apply the method to the downstream tracing algorithm and upstream tracing algorithm according to the proportional distribution principle. Furthermore, to improve the computational efficiency of the algorithm, we introduce the branch expunction method to optimize the node order. By using the result of power flow tracing to get fixed node transmission cost and introducing it to modify the spot price, we obtain the synthetical price.The application to a 5-bus system prove the algorithm feasible. |
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| Keywords: | cost allocation power flow tracing graph theory path searching |
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