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Reliability constraint power distribution network planning method based on feeder corridor

A technology for distribution network planning and reliability, applied in the direction of constraint-based CAD, electrical components, circuit devices, etc., can solve problems such as incomplete consideration of alternative lines, incomputable models, and inability to obtain planning results.

Active Publication Date: 2020-09-01
TSINGHUA UNIV
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Problems solved by technology

However, the artificially proposed alternative routes may not be fully considered, and exhausting all the alternative route sets to output the planning model may make the model uncomputable, so that it is impossible to obtain feasible planning results

Method used

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  • Reliability constraint power distribution network planning method based on feeder corridor
  • Reliability constraint power distribution network planning method based on feeder corridor
  • Reliability constraint power distribution network planning method based on feeder corridor

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Embodiment Construction

[0064] A reliability-constrained distribution network planning method based on feeder corridors proposed by the present invention will be further described in detail below in conjunction with specific embodiments.

[0065] A reliability-constrained distribution network planning method based on feeder corridors proposed by the present invention includes the following steps:

[0066] 1) Determine the installation status of components and the fault isolation, load transfer and fault recovery action principles after branch faults, as follows:

[0067] 1-1) The first end of each feeder is equipped with a circuit breaker (which can break the fault current), and the two ends of the feeder section (the corresponding branch of the feeder in a certain feeder corridor) are installed with isolation switches (which cannot break the fault current) , assuming that the circuit breaker is closed during normal operation;

[0068] 1-2) After a branch fault occurs, the circuit breaker upstream o...

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Abstract

The invention provides a reliability constraint power distribution network planning method based on a feeder corridor, and belongs to the technical field of power system planning and evaluation. The method comprises the following steps: firstly, determining an element installation state and a fault isolation, load transfer and fault recovery action principle after a branch fault; secondly, establishing a power distribution network planning model composed of an objective function and constraint conditions, planning a transformer substation, a transformer, a feeder line and an interconnection switch in the power distribution network as a whole based on the transformer substation, load distribution points and feeder line corridor information, and minimizing the comprehensive investment cost of the power distribution network by taking the reliability index of the power distribution network as a constraint; and solving the model to obtain a power distribution network planning scheme meetingthe reliability requirement of the system. The method is simple and easy to implement, and the obtained most existing planning scheme reduces the investment cost on the premise of meeting the reliability constraint.

Description

technical field [0001] The invention belongs to the technical field of power system planning, and in particular relates to a distribution network planning method based on feeder corridors with reliability constraints. Background technique [0002] Distribution network planning is an important part of power system planning. It is used to plan a reasonable and economical distribution network construction plan, so that the distribution network can meet the current or new power load demand in the next ten to thirty years. [0003] Most existing distribution network planning methods rely on artificially predetermined candidate lines (branches), that is, select a subset of the candidate line set as the input of the planning model, and then obtain the final planning scheme. However, the candidate routes proposed manually may not be fully considered, and exhaustively outputting all the candidate route sets to output the planning model may make the model uncomputable, so that it is i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18G06Q50/06G06F113/04G06F119/02G06F111/04G06F111/06
CPCG06F30/18G06Q50/06G06F2113/04G06F2119/02G06F2111/04G06F2111/06G06Q10/06313G06Q50/08H02J3/00125H02J2203/20Y02E60/00Y04S40/20
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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