Black-start scheme evaluation method

A scheme evaluation and black start technology, which is applied in the field of power system, can solve the problems such as the inability to confirm the priority of the scheme, affecting the use of users, and reducing the recovery efficiency of the power grid system

Inactive Publication Date: 2015-11-11
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for evaluating black start schemes, aiming to solve the technical problems that when there are many feasible schemes for blac...

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Embodiment Construction

[0112] In order to further understand the content, features and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings.

[0113] see figure 1 :

[0114] The present invention is achieved like this, and a kind of method for black start scheme evaluation comprises:

[0115] S101. Ask L experts to provide the ranking vectors of each evaluation index of the black start evaluation, and use the ordered binary comparison method to obtain the subjective weight;

[0116] S102. According to the initial decision matrix composed of the value of each evaluation index, the objective weight is obtained by using the coefficient of variation method;

[0117] S103. Obtain the comprehensive weight by using the vector similarity theory;

[0118] S104, converting the initial decision matrix in the form of real numbers into a decision matrix in the form of Vague sets, and converting the weight vect...

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Abstract

The invention discloses a black-start scheme evaluation method, which comprises the steps of asking L experts to give a ranking vector for all evaluation indexes used for black-start scheme evaluation and figuring out a subjective based on the weight ordered binary comparison method; figuring out an objective weight based on the method of variation coefficient, according to an initial decision matrix formed by the values of all evaluation indexes; figuring out a comprehensive weight based on the vector similarity theory; converting the initial decision matrix in the form of real values into a decision matrix in the form of a Vague set, and converting a weight vector into a vector in the same form with the obtained decision matrix; and ranking all schemes based on the PROMTTHEE method of the Vague set to obtain a ranking sequence. According to the technical scheme of the invention, the objective difference of data and the subjective preference of experts are well combined, and then a more reasonable index weight is given. Meanwhile, the priority relationship of quantization schemes can be quantized more accurately based on the PROMTTHEE method, so that the schemes can be completely ranked.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a method for evaluating a black start scheme. Background technique [0002] The black start of the power system refers to that after the entire power grid system is out of service due to a fault, through the start of the unit with self-starting capability in the system, also known as the unit with black start capability, it drives the unit without self-starting capability, and gradually expands the power supply range of the system, and finally realizes Restoration of the entire system. The black start plan is generally formulated by the dispatcher in advance, in case the system has a power outage of the entire network. For a specific system, there may be many feasible schemes, and the comprehensive effect of different schemes on the system recovery process may be hugely different. How to evaluate many schemes, so as to realize the ranking and optimization of schemes, has...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
Inventor 刘涛林济铿史成广高玮
Owner STATE GRID CORP OF CHINA
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