Power transmission system

A technology of power transmission system and AC system, applied in the field of power transmission system, can solve problems such as environmental pollution, limited energy consumption, and impact on residents' healthy life

Pending Publication Date: 2019-08-09
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the embodiments of the present invention is to overcome the large-capacity and long-distance po

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Embodiment 1

[0044] An embodiment of the present invention provides a power transmission system, which is applied to AC power transmission in a power system, such as figure 1 As shown, it includes: new energy power generation base 1, offshore power supply platform 2, AC system 4, offshore power platform 3, multiple first AC / AC frequency conversion devices 5, multiple second AC / AC frequency conversion devices 6 and power lines Cable 7, wherein,

[0045] Offshore power consumption platform 3 is used to provide electric energy for offshore power consumption equipment. The offshore power platform 3 here is mainly set up on various sea islands or islands for production operations or other activities. The electric platform 3 mines coal resources on the island, and the offshore electric platform 3 conducts production operations, which needs to provide electric energy for the electric equipment used in these production operations. Since the distribution of each island on the sea is usually relat...

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Abstract

The invention discloses a power transmission system, and the system comprises an offshore power utilization platform, an AC system, an offshore power supply platform, a new energy power generation base and a plurality of first AC/AC frequency conversion devices used for converting a first frequency three-phase voltage in a power transmission line into a second frequency three-phase voltage; a plurality of second AC/AC frequency conversion devices used for converting the second frequency three-phase voltage in the power transmission line into the first frequency three-phase voltage, wherein thefirst frequency is less than the second frequency; and a power transmission cable which is connected with the new energy power generation base and/or the AC system and/or the offshore power platformand/or the offshore power supply platform through the first AC/AC frequency conversion device and/or the second AC/AC frequency conversion device. According to the power transmission system, the transmission capacity of the line is multiplied by adopting the power transmission frequency less than the first frequency, the transmission distance is increased, energy consumption can be reduced by networking power generation through the new energy power generation base, environment-friendly construction is facilitated, and healthy life of residents is guaranteed.

Description

technical field [0001] The invention relates to the field of electric power transmission, in particular to a power transmission system. Background technique [0002] Energy is an important material basis for economic and social development. Accelerating the establishment of a safe, reliable, cost-effective, clean and environmentally friendly modern energy supply system has become a common strategic goal of all countries in the world. In order to effectively solve the problems of energy depletion and environmental pollution, the development of new energy has become the only way to meet the three major challenges of energy security, environmental pollution, and climate change, and to realize the sustainable development of human society. Wind power generation is one of the most mature and large-scale development conditions among new energy power generation technologies. In some areas, the distribution of wind power resources and load centers are reversed, and large-capacity lo...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/00H02J3/382
Inventor 于弘洋赵国亮葛菁邓占锋蔡林海戴朝波宋洁莹尉志勇祁欢欢王朝亮周自强陆翌应国德洪道鉴蒋行辉
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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