Method for Theoretical Line Loss Calculation of 10kV Distribution District based on Actual Electric Energy of Distribution Transformer Secondary Side

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Tingting, Jing^1 ; Li, Dai^1 ; Hongjuan, Xi^1 ; Yue, Hu^2

Chang'Shou Electric Power Supply Subcompany, State Grid Chongqing Electric Power Company, Chongqing

400000, China^1

State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing

400044, China^2

关键词: Average currents;    Distribution transformer;    Electric energies;    Electricity customers;    Electricity loss;    Equivalent resistance;    Forward-and-backward;    Theoretical line loss;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012152/pdf
DOI  :  10.1088/1755-1315/218/1/012152

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The 10kV distribution district serves the electricity customer, and its theoretical loss can reflect the real situation of the technical line loss. Adopting the equivalent resistance method based on average current, on the basis of the remotely read active and reactive electricity at the head of the 10kV line, as well as the actual copying electricity on the secondary side of distribution transformer, this paper establishes mathematical models for calculating the electricity loss in both forward and backward directions. The case analysis shows that the results of the backward mathematical model accurately reflect the actual value of the theoretical line loss, and by comparing the theoretical line loss rate calculated by the two mathematical models, the unknown loss of the line can be identified.