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A Distribution Network Planning Method Considering Reliability Constraints

A distribution network planning and reliability technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve conservative and unstable problems

Active Publication Date: 2021-04-02
TSINGHUA UNIV
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Problems solved by technology

Clearly, heuristics can only provide decision makers with relatively suboptimal solutions, which can be conservative and unstable

Method used

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  • A Distribution Network Planning Method Considering Reliability Constraints
  • A Distribution Network Planning Method Considering Reliability Constraints
  • A Distribution Network Planning Method Considering Reliability Constraints

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Embodiment Construction

[0065] A distribution network planning method considering reliability constraints proposed by the present invention will be further described in detail below in conjunction with specific embodiments.

[0066] A distribution network planning method considering reliability constraints proposed by the present invention includes the following steps:

[0067] 1) Construct a distribution network planning model considering reliability constraints, which is composed of objective functions and constraints; the details are as follows:

[0068] 1-1) Determine the objective function of the model;

[0069] The objective function of the model is to minimize the investment cost of the distribution network, as shown in the formula:

[0070]

[0071] where C I investment cost for the distribution network, is the cost of type a wire, Whether to create a wire of type a for branch ij ( for new, is not newly built), Υ represents the set of all branches, Λ B for the set of all wire ty...

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Abstract

The invention proposes a distribution network planning method considering reliability constraints, which belongs to the technical field of power system planning and evaluation. This method builds a distribution network planning model composed of objective functions and constraints, incorporates the reliability index into the distribution network planning problem as a constraint, and accurately describes the reliability index through the coupling relationship between constraints, so that the distribution network can be solved The solution obtained by the planning model must satisfy the set reliability constraints, and the optimal distribution network planning scheme is obtained. This method avoids the iterative solution method of the traditional distribution network planning method that first plans and then verifies the reliability index, but directly obtains the power grid planning scheme that satisfies the reliability constraints, which ensures the optimality of the planning scheme and greatly reduces Calculation time for distribution network planning.

Description

technical field [0001] The invention belongs to the technical field of power system planning and evaluation, and in particular relates to a distribution network planning method considering reliability constraints. Background technique [0002] In distribution network planning, reliability is an important index to evaluate the performance of the planned network. In the field of distribution network planning, reliability refers to the ability of the power system to continuously meet the quantity and quality of power demand of end users. Distribution network reliability mainly includes the following indicators: customer interruption frequency (CIF), customer interruption duration (CID), system average annual interruption frequency index (SAIFI )), system average interruption duration index (SAIDI) and expected energy not supplied (EENS)). [0003] Since the calculation process of the reliability index is expressed as the probability time of statistical failure events, in the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06393G06Q10/0637G06Q50/06G06F30/13G06Q10/0631H02J3/00H02J2203/10H02J2203/20Y04S10/50Y04S40/20Y02E40/70Y02E60/00G05B19/042G05B2219/2639
Inventor 吴文传张伯明栗子豪孙宏斌王彬郭庆来
Owner TSINGHUA UNIV
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