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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >A method of evaluating the transfer capacity for power system considering of the power injection and the power grid topology
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A method of evaluating the transfer capacity for power system considering of the power injection and the power grid topology

机译：考虑电力注入和电网拓扑的电力系统传输容量评估方法

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摘要

The transfer capacity is a varying value for a certain power system, which may be changed with the evolution of the system. Although the topology of a power system is usually designed in an optimizing way to maximize the transfer capability, the capability itself will be inevitably weaken because of a time lag between the increasing load and the enhancement of grid topology. Due to the lack of qualification tools to deal with the varying transfer capability, related topics are seldom to be discussed. This paper proposes a new method to evaluate the transfer capacity, in which the mechanism describing the mismatch can be boiled down to a new index named Spatial Characteristic Length Ratio (SCLR) considering of both the power injection and the power grid topology. By calculating the index SCLR, the transfer capability as well as the factors affecting it can be analyzed, which has an important meaning for power grid planning personnel. The method is used to analyze the transfer capacity of IEEE 4-node system, IEEE 9-node system and IEEE 162-node system, each under different modes of operation. Calculation results has proved the validity of this concept, and the related method is effective.
机译：对于特定的电源系统，传输容量是一个变化的值，可以随系统的发展而变化。尽管通常以优化方式设计电力系统的拓扑结构以最大化传输能力，但由于负载增加和电网拓扑结构增强之间存在时间差，因此能力本身将不可避免地减弱。由于缺乏处理变化的转移能力的资格认证工具，因此很少讨论相关主题。本文提出了一种评估传输容量的新方法，该方法可以将描述失配的机制归结为一个新的指标，即考虑到电力注入和电网拓扑的空间特征长度比（SCLR）。通过计算指标SCLR，可以分析其传输能力以及影响其的因素，这对电网规划人员具有重要意义。该方法用于分析IEEE 4节点系统，IEEE 9节点系统和IEEE 162节点系统在不同操作模式下的传输能力。计算结果证明了该概念的有效性，相关方法是有效的。

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