Distribution network automation scheme comprehensive evaluation system

Abstract

The invention discloses a distribution network automation scheme comprehensive evaluation system. The system comprises a correction unit, a distribution network splitting unit, a fault set generation unit, a screening unit, a reliability index calculation unit, and an economic index calculation unit. According to the comprehensive evaluation system, the evaluation method of a distribution network and the calculation method of the reliability index are corrected by employing an improved quantity of the power failure time, the reliability and the economy of an automation scheme of the distribution network can be effectively and comprehensively evaluated, different requirements of the reliability by different practical distribution networks are met, the universal applicability is achieved, and an important practical significance is attached to the improvement of the comprehensive management level of the distribution network.

Description

technical field [0001] The invention belongs to the technical field of distribution networks, and in particular relates to a comprehensive evaluation system for distribution network automation schemes. Background technique [0002] As the last level of power generation, transmission and distribution, the distribution network is directly oriented to users, has the closest connection with users, and has the most direct impact on users. Its power supply quality and reliability are of great significance to the power grid and users. With the rapid growth of electrical load and the continuous improvement of power supply reliability requirements, the number of various types of power distribution system equipment is increasing, and the system is becoming more and more complex, which increases the risk probability and management difficulty of the distribution network. When a fault occurs in the distribution network, there are great difficulties in the processing of the fault and the ...

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Problems solved by technology

However, the urban distribution network is large in scale, complex in structure, and numerous in equipment. The construction and transformation of the distribution network requires a lot of manpower and material resources. The implementation of distribution network automation in some places does not necessarily bring economic benefits. Therefore, it is necessary to Quantitative analysis of the benefits and costs of network automation to evaluate the economic value of the scheme

[0003] At present, there are many studies on the reliability evaluation and calculation of distribution networks in China, mainly for the traditional distribution network. There are not many studies on the reliability calculation and cost-benefit quantitative analysis of the distribution network automation system, and basically only consider the Part of it has not been applied to the entire large network. Distribution network automation is a trend in distribution network construction. Distribution network automation can greatly shorten the power outage time, improve the comprehensive management level of distribution network, and the economy of distribution network operation have very important practical significance

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