Power distribution network health index assessment engineering application system

Abstract

The invention relates to a power distribution network health index assessment engineering application system. The system comprises a power distribution network health index assessment method layer, a platform layer and an application layer. The system considers a power distribution network equipment state, an operation condition and network topology, a load, safety and environment conditions and other key characteristic parameters, a power distribution network health index assessment method is established from two levels of equipment and a network, a power distribution network health index data platform and an assessment system are established on the basis, an application of health index assessment in power distribution network optimization planning and maintenance fields is achieved, power distribution network asset management can be effectively promoted to be lean, scientific and systematic, and a solid foundation is laid for active power distribution network construction.

Description

technical field [0001] The invention relates to distribution network asset management technology, in particular to a distribution network health index evaluation engineering application system. Background technique [0002] With the development of society and economy and the trend of electricity marketization, especially with the formation and implementation of the concept of smart grid in recent years, the management methods of electric power enterprises are gradually formulated around the business objectives of enterprises, and the goals dominated by safety / technology in the past will turn to Comprehensive optimization of safety / technology / performance / economy / environment is the leading factor. At the same time, the complexity, discreteness, dynamics, nonlinearity, multi-objectiveness and uncertainty of the modern distribution network put forward higher requirements for planning; the application range of smart grid status detection is no longer limited to the power grid Eq...

AI Technical Summary

Problems solved by technology

[0005] (1) The data quality of domestic power distribution equipment is uneven, and there are differences in caliber between operation data and production data, between production data and ERP data, between power distribution and marketing data, and multiple sources of data in relation to business system data. The problem is that a unified data platform for the distribution network has not been established, and there is a lack of effective perception, data screening and identification, and related software technologies to support the acquisition of health index status information;

[0006] (2) In key links such as distribution network planning scheme, engineering scheme design, maintenance strategy optimization, technical transformation scheme optimization, and equipment decommissioning, there is a lack of quantitative decision-making methods that comprehensively consider aspects such as economy, safety, and environmental protection, and cover the entire process of asset life; It cannot provide support for distribution network intelligence and renewable energy access;

[0007] (3) Both the traditional distribution network planning and the active distribution network planning do not consider the equipment health status, and the reliability-based distribution network planning only considers the equipment failure rate, which makes it difficult to guarantee the reliability and economics of the planning scheme. , it is urgent to study the modern distribution network planning technology that can be in line with international standards, based on health index assessment, integrating renewable energy access, power supply reliability and risk theory;

[0008] (4) The existing evaluation methods and maintenance strategies basically follow the state evaluation concepts and methods of power transmission and transformation equipment. Equipment evaluation still has difficulties in collecting state quantities, evaluation scope is difficult to fully cover, and evaluation content is relatively single. Condition-based maintenance often formulates maintenance strategies from the equipment level, focusing on the individual performance of equipment, and lacks consideration of the overall operation performance of the power grid. Carry out research on the optimal maintenance strategy of power transformation and distribution equipment based on the evaluation of equipment and network health index, reduce the risk of distribution network and improve the overall operation level

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