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A configuration scheme selection method for offshore frequency division cable transmission system

A technology of power transmission system and configuration scheme, which is applied in data processing applications, instruments, calculations, etc., and can solve the problems that the transmission capacity and economic efficiency of the frequency division transmission system cannot be optimized and improved

Active Publication Date: 2021-06-22
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0008] The purpose of the present invention is to provide a method for selecting the configuration scheme of the offshore frequency division cable transmission system, which solves the problem that the transmission capacity and economic efficiency of different frequency division transmission systems cannot be optimized and improves, so that the power transmission capacity and system economy of the frequency division cable transmission system can be improved. Find the balance on the above, and then get the optimal system configuration scheme of the frequency division cable transmission system

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  • A configuration scheme selection method for offshore frequency division cable transmission system
  • A configuration scheme selection method for offshore frequency division cable transmission system
  • A configuration scheme selection method for offshore frequency division cable transmission system

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Embodiment Construction

[0032] In the following, the optimization of the configuration scheme of the frequency division cable power transmission system will be described in detail in conjunction with the accompanying drawings.

[0033] The topology of offshore frequency division cable transmission system is as follows: figure 1 As shown, including: offshore wind farms, submarine cables, AC / AC frequency conversion stations and offshore transformers, etc. A method for selecting an optimal configuration scheme for an offshore frequency division cable transmission system, such as figure 2 As shown, it includes: the selection method of the transmission voltage level of the frequency division transmission system, the selection method of the optimal transmission frequency, the selection method of the submarine cable and the parameter design method of the AC frequency conversion station.

[0034] For the economical transmission distance of the frequency division cable transmission system, if the offshore ...

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Abstract

The invention discloses a method for selecting a configuration scheme of an offshore frequency-division cable transmission system, which belongs to the technical fields of power system planning and flexible power transmission. Determine the transmission voltage level of the offshore frequency division cable transmission system according to the transmission capacity to be transmitted by the offshore wind farm site, and design the configuration parameters of the AC-AC frequency station; determine the power frequency ampacity required by the cable according to the power transmission capacity and voltage level, Preliminary selection of submarine cables is carried out; the optimal transmission frequency of the current system is selected based on the optimal frequency selection method, and the frequency division ampacity at the optimal transmission frequency is determined. If the frequency-division ampacity is less than 1.1 times the power frequency ampacity, then determine the transmission frequency of the frequency-division transmission system and the submarine cable, otherwise the submarine cable needs to be selected again. The advantage is that it solves the problem that the transmission capacity and economy of different frequency division transmission systems cannot be optimized and improved, so that the power transmission capacity of the frequency division cable transmission system and the system economy can be balanced, and then the optimal system configuration of the frequency division cable transmission system is obtained. Program.

Description

technical field [0001] The invention belongs to the technical fields of power system planning and flexible power transmission, and in particular relates to a method for selecting a configuration scheme of an offshore frequency division cable power transmission system. Background technique [0002] The structure of the offshore frequency division cable transmission system includes: offshore wind farms, submarine cables, AC / AC frequency conversion stations and offshore transformers. Therefore, the configuration scheme of the frequency division cable transmission system includes the selection of voltage levels, the optimal transmission frequency, the selection of submarine cables, and the design method of the configuration parameters of AC and AC frequency conversion stations. [0003] The selection of the traditional high-voltage AC transmission voltage level depends on the length of the transmission line, and the voltage level to be selected is also different. Generally, the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16Z99/00
CPCG06Q10/06313G06Q50/06
Inventor 袁敞周芮冰童明杨丹冯佳耀
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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