Power distribution network availability evaluation method based on complementary set operation

A utilization rate and distribution network technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of inability to comprehensively and uniformly evaluate the distribution network availability and single distribution network mode

Inactive Publication Date: 2016-02-03
SHANGHAI PROINVENT INFORMATION TECH
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Problems solved by technology

[0005] The present invention aims to solve the problem that the utilization rate evaluation mode of the equipment in the distrib

Method used

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  • Power distribution network availability evaluation method based on complementary set operation
  • Power distribution network availability evaluation method based on complementary set operation
  • Power distribution network availability evaluation method based on complementary set operation

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Experimental program
Comparison scheme
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Embodiment

[0024] 1. The remainder operation on the number axis

[0025] 1.1 Definition of remainder set

[0026] In mathematical set theory, the remainder set is also called the complement set, which is defined as: Suppose S is a set, A is a proper subset of S, and the set composed of all elements in S that do not belong to A is called the subset A in The complement (or remainder) of S is denoted as C S A, read as the remainder (complement) of A in S. In algebraic analysis, assuming that all points are distributed on the number axis, then the set S can be expressed as [0,S], the set A is expressed as [0,A], and the remainder can be expressed as a set:

[0027] C S A=[A,S](1)

[0028] On the number line, it is also possible to define the width of sets and cosets. For example, the widths of the sets [0,A] and [0,S] are A and S respectively; the width of the remainder set [A,S] is S-A.

[0029] 1.2 De Morgan's law

[0030] In the analysis of set theory, the operation for cosets is m...

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Abstract

The invention provides a power distribution network availability evaluation method which is mainly used for settling a problem of performing unified evaluation on the availability of a power distribution network through utilization rates of different equipment. According to the power distribution network availability evaluation method, through performing mathematical operation deviation on no-load rate and availability of electric power equipment, no-load rate and availability of an electric power network and availability of the power distribution network, equipment availability of the complicated electric power network is defined in a unified manner according to a complementary set operation method, and the equipment availability of the complicated electric power network can be reflected in a more comprehensive and truer manner.

Description

technical field [0001] The invention relates to a method of extending the remainder operation to a power network and uniformly evaluating the availability of a distribution network through the utilization of different devices, belonging to the technical field of distribution network evaluation in the electric power industry. Background technique [0002] In the power system, the utilization rate of power equipment is a concern. If the utilization rate of power equipment is too low, it means that the power investment is unreasonable; otherwise, it means that there are certain hidden dangers in the power grid. The utilization rate of the power equipment and the power grid refers to the power transmission capacity of the equipment or the system itself, that is to say, the reference coordinate is the capacity of the power equipment. The utilization rate of equipment is closely related to the load rate. In the past, the evaluation of the availability rate of the distribution net...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 王承民刘涌李宏仲袁秋实
Owner SHANGHAI PROINVENT INFORMATION TECH
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