Transmission and Distribution Engineering and Technology
Vol.3 No.04(2014), Article ID:14531,4 pages
DOI:10.12677/TDET.2014.34011

A Quantitative Method Assessing Comprehensive Loss Reduction Capacity of Distribution Network

Wei Liu1, Jiaxi Yu1, Bingzhang Tong1, Binhe Liu2, Qingkun Liu2, Yunsi Huang3, Lanlan Chen3

1Hainan Power Grid Limited Liability Company, Haikou

2Beijing Semeureka Electric Company Limited, Beijing

3North China Electric Power University, Beijing

Email: easahoang@163.com

Received: Nov. 7th, 2014; revised: Nov. 28th, 2014; accepted: Dec. 5th, 2014

ABSTRACT

It has always been that the electric energy loss brought by distribution accounts for a significant proportion of network loss in power system. As a consequence, it’s necessary to assess the loss reduction capacity of the distribution network, and to make suitable loss reduction plans. This paper established a model to quantitatively assess the comprehensive loss reduction capacity of distribution network. First, the loss reduction capacity of each loss reduction method was assessed, and then the comprehensive loss reduction capacity of the whole distribution network was achieved by using the model established before. The loss reduction plans based on this model has the advantages of high reliability and pertinence.

Keywords:Distribution Network, Comprehensive Loss Reduction Capacity, Quantitative Assessing

1海南省电网有限责任公司，海口

2北京水木源华电气股份有限公司，北京

3华北电力大学，北京

Email: easahoang@163.com

1. 引言

2. 综合降损潜力定量评估模型

(1)

(2)

3. 三种降损措施的降损潜力评估

(3)

3.1. 变压器经济运行的降损潜力

(4)

(5)

3.2. 网络重构的降损潜力

(6)

3.3. 配电网无功补偿的降损潜力

(7)

(8)

4. 综合降损潜力定量评估流程

1) 对子网络的网损现状进行分析，并选取典型子网络；

2) 对典型子网络的三项降损潜力分别进行评估；

3) 选取合适的折扣系数，计算典型子网络的综合降损潜力；

4) 选取适当的降损潜力评估等级，并对典型子网络的综合降损潜力进行分类，取每个等级中所有子网络降损潜力的平均值为该等级的降损潜力；

5) 选取合适的权重系数，计算整个配电网的综合降损潜力。

5. 算例分析

Table 1. Loss reduction capacity of typical sub-network

Table 2. Comprehensive loss reduction capacity of distribution network

6. 结论

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