Heat dissipation structure of power container of light direct current transmission system
A power transmission system, light direct current technology, applied in the cooling/ventilation of substations/switchgears, etc., can solve the problems that light direct current transmission has not been widely used, light direct current transmission has no capacitive current, and there is capacitive current, etc.
Inactive Publication Date: 2012-02-29
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP +1
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Problems solved by technology
[0005] 2. In the cable transmission line, there is no capacitive current in the light DC transmission line, but there is a capacitive current in the high-voltage AC transmission line, which causes loss;
In the current existing technology, light direct current transmission has not been widely used
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[0021] The air conditioner 12 is installed on the upper part of the power container box, which is in the form of one work and one standby; the internal space of the power container is divided into three parts by means of partition walls in the box: the power unit installation interval 7, the input and output circuit installation interval 4 and the control unit Install interval 3. These three parts are separated in a container by means of a partition wall inside the container, so that the functional high and low voltage components can be effectively and safely distinguished, and the overall structure can be the most compact and the space utilization rate can be the highest. The protection level of the container body reaches IP65, which can fully adapt to the conditions of the marine environment such as humidity, salt spray, wind waves, and typhoons.
[0022] The heat dissipation structure of the power container of the light direct current transmission system, there is no fresh ...
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The invention relates to a heat dissipation structure of a power container of a light direct current transmission system, which relies on an air conditioner for circulating refrigeration. A self circulating fan of the air conditioner is used as a heat dissipation main body, the circulating fan is connected with an air inlet cavity through an air supply outlet, the air inlet cavity is communicated with a power unit arrangement interval, and a power unit is positioned between an air return cavity and the air inlet cavity; the air return cavity is connected with the circulating fan through an air return inlet; an air vent is arranged between a control unit arrangement interval and the power unit arrangement interval, an air vent is arranged between the control unit arrangement interval and an input and output circuit arrangement interval, and the input and output circuit arrangement interval is communicated with the air return cavity. The invention has the beneficial effects that the heat dissipation structure relies on the air conditioner for circulating refrigeration; and a fan of a variable frequency power source body is eliminated, and the circulating fan relying on the air conditioner is used as the heat dissipation main body, so the structure can completely adapt to the conditions of humidity, salt fog, stormy waves, typhoon and other marine environments.
Description
technical field [0001] The present invention relates to a light-duty direct current transmission system power container heat dissipation structure, in particular to a power unit heat dissipation that provides a reliable direct current power supply system for offshore oil drilling platforms and oil production platforms, and can adapt to marine environments such as humidity, salt spray, wind waves, typhoons, etc. conditions of. Background technique [0002] The particularity of my country's energy resources and power load distribution has become an inevitability for the development of long-distance and large-capacity power transmission. Especially for long-distance transmission lines over 600km, the use of DC transmission is more energy-saving, reduces consumption, improves economic benefits, and realizes rational development and optimal allocation of energy resources in a wider range, which is in line with my country's national conditions. [0003] With the rapid development...
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IPC IPC(8): H02B1/56
Inventor 李大全郭自勇崔效毓彭泽煊梁允源曹建军杨洋王绪宝孙贤大梁志平胡辉莫儒志顾欣侯军
Owner ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP