Topology design method and device of current collecting system of offshore wind farm

A design method and technology for wind farms, applied in the field of power systems, can solve the problems of large investment of manpower, financial resources and time, increase in the number of topologies of power collection systems, difficulty in manual design, etc., and achieve the effect of saving manpower

Active Publication Date: 2012-10-31
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The traditional topology design method of offshore wind farm power collection system adopts manual topology design, which leads to relatively large investment in manpower, financial resources and time
Especially with the increasing number of wind turbines in offshore wind farms, the number of tree-structured collector system topologies that meet engineering applications is increasing explosively, which brings difficulties to manual design.

Method used

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  • Topology design method and device of current collecting system of offshore wind farm
  • Topology design method and device of current collecting system of offshore wind farm
  • Topology design method and device of current collecting system of offshore wind farm

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Effect test

Embodiment 1

[0026] see figure 1 As shown, a method for topology design of offshore wind farm power collection system includes the following steps:

[0027] Step S101, according to user input information and various constraint conditions, a topology structure satisfying the constraint conditions is generated. It should be noted that the topology generated here is only the initial topology, not the final design result, so it can be set here to generate as many topologies as possible to facilitate finding the global optimal topology.

[0028] As a preferred embodiment, the user input information may include: offshore wind farm information, coordinates of wind turbines and substations, cable library information, switch library information, wind turbine information, and the like.

[0029] As a better embodiment, the constraints may include: default constraints, constraints set by users, and the like. Among them, the default constraints mainly include:

[0030] (1) The number of tree structu...

Embodiment 2

[0082] The following is a specific application scenario: the application in Zhuhai Guishan Wind Farm, to further reveal the technical solution and beneficial effects of the present invention:

[0083] Basic information of Guishan Wind Farm: Zhuhai Guishan Wind Farm is an offshore wind farm under planning, with an average water depth of 10m and a distance of about 10km from the coastline. There are a total of 66 wind turbines, each with an installed capacity of 3MW, and a total installed capacity of 198MW. , where the offshore wind farm has a booster station.

[0084] The specific operation process is described below:

[0085] 1. Substation information entry, that is, the user enters information, such as the wind field, substation, wind turbine and connection restrictions of Zhuhai Guishan Wind Farm: First, when entering substation information, you must first select the wind farm to which it belongs, and then you can Substation information to operate; secondly, the basic opera...

Embodiment 3

[0091] Corresponding to the topology design method for the power collection system of the upper wind farm in the first embodiment, this embodiment provides a topology design device for the power collection system of the offshore wind farm, such as image 3 shown, including:

[0092] An initial topology generating module 101, configured to generate a topology satisfying constraints according to user input information and various constraints;

[0093] The model selection module 102 is used to perform power flow calculation on each generated topological structure, obtain the line current value on each topological structure, and select the cable and switch model of the corresponding line accordingly;

[0094] The economical cost calculation module 103 is used to calculate the economical cost of each topology according to the investment cost and maintenance cost of the selected cables and switches;

[0095] The reliability cost calculation module 104 is used to calculate the relia...

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Abstract

The invention provides a topology design method and a topology design device of a current collecting system of an offshore wind farm. The topology design method comprises the following steps of: generating topological structures meeting the constraint conditions according to input information of a user and various constraint conditions; carrying out load flow calculation on the generated topological structures, obtaining line current values on all the topological structures, and selecting the types of cables and switches of corresponding lines; calculating the economy cost of all the topological structures according to the investment cost and the maintenance cost of the cables and switches selected; calculating the reliability cost of all the topological structures according to the fault occurrence probability of the selected cables and switches; and carrying out sequencing on all the topological structures according to the economy cost and the reliability cost or simultaneous consideration of the comprehensive cost of the economy cost and the reliability cost, and selecting the topological structures with preset quantity for output. The topology design method and the topology design device have the advantages that automatic design of the topological structures of the current collecting system of the offshore wind farm is realized by a computer, so that the investment on labor, cost and time is greatly saved.

Description

technical field [0001] The present invention relates to the field of electric power systems, in particular to a method for designing the topology of a collection system of an offshore wind farm and a device for designing the topology of the collection system of an offshore wind farm. Background technique [0002] With the reduction of conventional energy such as oil and coal, new energy has attracted the attention of countries all over the world. Among them, wind power is the fastest-growing form of new energy utilization in the world today. [0003] Wind power mainly includes onshore wind power and offshore wind power. With the increasing saturation of onshore wind power, countries have turned their attention to offshore wind power. However, with the increasing scale of offshore wind farms, some irrelevant issues in early offshore wind farms can no longer be ignored, and the topology design of offshore wind farm collector systems is one of them. [0004] The power collec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 周伟李煜东郑明沈云陈楠丁志勇
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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