A Method for Calculating Power Supply Capacity of a High Voltage Distribution Network based on Power Supply Area Division

Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering Pub Date : 1900-01-01 DOI:10.5220/0008872104500455

Ziao Gui, Dongxue Sun, Zhuding Wang, Xianglu Pang

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Abstract

Starting from the application purpose of distribution network planning and the idea of solving a large-scale and complex problem through using a simple method, a practical method is proposed for calculating the power supply capacity of a high voltage distribution network based on power supply area division. Based on relatively independent power supply subareas, the power supply capacity of a high voltage distribution network is obtained by the direct accumulation of its subareas’ power supply capacities. As part of that work, an approximate estimation formula is deduced, which can convert the allowable line voltage loss into a corresponding capacity constraint, so that the influence of voltage quality on power supply capacity can be concisely considered. Also, the approximate formulas are deduced for estimating the power supply capacities of typical high-voltage wiring modes, which are convenient for manual calculation or intervention. The example shows that the presented model and method are intuitive, simple, stable and effective, and are convenient for popularization and application in practice.

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基于供电区域划分的高压配电网供电容量计算方法

从配电网规划的应用目的出发，本着用简单的方法解决大规模复杂问题的思路，提出了一种基于供电区域划分的高压配电网供电容量计算的实用方法。高压配电网的供电能力是基于相对独立的供电分区，通过分区供电容量的直接累积而得到的。作为该工作的一部分，推导了一个近似估计公式，将允许的线路电压损失转化为相应的容量约束，从而可以简洁地考虑电压质量对供电容量的影响。并推导了典型高压接线方式供电能力的近似计算公式，方便人工计算或干预。算例表明，所提出的模型和方法直观、简单、稳定、有效，便于在实践中推广应用。

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Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering

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