A method for site selection and type selection of power distribution terminals

Abstract

Provided in the invention is a power distribution terminal location selection method. The method comprises: step A, analyzing the operating state of a single power distribution terminal and calculating the stationary probability of the power distribution terminal in each operation state based on the Markov chain theory; step B, carrying out communication reliability calculation on different communication networking modes of a power distribution network; step C, for different power supply areas, establishing a dynamic power distribution terminal location selection model by using a maximum construction cost input and communication reliability as constraints and minimization of the sum of the power outage loss cost and construction cost under the condition of different distribution network construction as an optimization objective and determining number of configuration of different types of power distribution terminals; and step D, carrying out node importance ranking on the power supplyareas and thus determining installation locations of the power distribution terminals in all power supply areas. According to the invention, the dual constraints of investment cost and power supply reliability are considered comprehensively based on the communication reliability in different networking modes; the random topological power distribution terminal planning layouts are completed by combining the node importance ranks; and the field practicability is high.

Description

technical field [0001] The invention relates to the field of power distribution automation, in particular to a method for site selection and type selection of power distribution terminals, which is mainly suitable for realizing the optimal layout of power distribution terminals according to the communication reliability under different networking modes. Background technique [0002] With the continuous development of national economy and power industry, users of distribution network have higher and higher demand for power supply reliability. As a key link of smart grid, distribution automation is an effective way to ensure the safe operation of the distribution network, enhance the management level of the distribution network and improve the reliability of the distribution network. With the continuous deepening of the concept of smart grid, distribution automation plays an increasingly important role in distribution network troubleshooting, distribution network structure sel...

AI Technical Summary

Problems solved by technology

In fact, communication networking plays an important role in distribution network planning, because the current mainstream technologies of power distribution communication networking include Ethernet passive optical network (EPON), wireless private network, Ethernet switch and medium voltage carrier technology. They include different network architecture methods such as star, tree, and ring networking. The investment and reliability of different networking modes are coupled with the entire distribution network, which cannot be isolated. The quality of the communication network is directly related to the group. Network efficiency and terminal connection reliability, which in turn affects the power supply reliability of the entire smart distribution network

Therefore, different networking schemes have a greater impact on communication quality, communication efficiency, and operation and maintenance management

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