Comprehensive performance multi-dimensional evaluation method

Abstract

The invention discloses a comprehensive performance multi-dimensional evaluation method, which is applied to a rail transit power supply system of a bilateral power supply structure, and comprises thefollowing steps of: establishing multi-dimensional comprehensive evaluation indexes of a system power quality dimension, a system application economy dimension and a system operation stability dimension; adopting different evaluation algorithms for different system evaluation dimensions, specifically, adopting a projection pursuit method based on a genetic algorithm for evaluating the system comprehensive power quality, adopting an approximate ideal solution sorting method based on an application variable coefficient method for evaluating the system application economical efficiency, and adopting an approximate ideal solution sorting method based on a mean square error method for evaluating the system operation stability; and allocating weights to all dimension index evaluation results according to system operation scene requirements to obtain a final comprehensive performance multi-dimensional evaluation result of the rail transit power supply system for the bilateral power supply structure. The comprehensive performance multi-dimensional evaluation method remarkably improves the correctness, rationality, scientificity, effectiveness and comprehensiveness of the evaluation method.

Description

technical field [0001] The invention relates to the technical field of system performance comprehensive evaluation and power supply system, in particular to a comprehensive performance multi-dimensional evaluation method for rail transit power supply systems with bilateral power supply structures. Background technique [0002] The construction of rail transit has made great contributions to the development of urban rail transit. As an important part of the rail transit system, the rail transit power supply system converts and transmits the electric energy required by rail transit locomotives. At the same time, because of the low power loss of the traction network, the power loss of rail transit locomotives is low when they are live, and the continuous power supply of the traction network can be guaranteed when a certain traction substation breaks down. The bilateral power supply structure is the most commonly used and stable structure. It has been widely used in rail transi...

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to address the above problems and provide a comprehensive performance multi-dimensional evaluation method for rail transit power supply systems with bilateral power supply structures to solve the traditional comprehensive evaluation in the above-mentioned background technology. , Fixed evaluation scenarios, high proportion of subjective evaluation factors, etc.

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