Research on Switch Signals of Electrical Equipment in Power Distribution Systems

Gen-ping Wang ； You-de Ruan ； Xiao-jun Wen

《電腦學刊》 29卷3期 (2018/06) Pp. 229-239

https://doi.org/10.3966/199115992018062903022

摘要

At present, monitoring the working state and energy consumption of an on-line equipment are extremely difficult and costly due to the complex working environment in a power distributed system. This paper provides a new way to determine the switching state of the on-line equipment and its position in the distribution network by means of the calculation of the electrical signals with a current and voltage sensor installed in the power supply entrance of the distribution system. Four mathematical models are developed to describe the voltage and current responses detected by sensor for electrical equipment's switching, and a formula is got to calculate the position distance for the equipment. An experiment is provided to prove the validity of the mathematical models and the practicality of the formula. The results can help construct a monitoring system for the working states of the electrical equipments and their energy consumption with low costs.

關鍵字

current response model ； distance from sensor to electrical equipment ； monitoring system for electrical equipment ； voltage response model