A DC power distribution system
A DC power distribution and subsystem technology, applied in the field of electric power, can solve problems such as the lack of power transmission corridors, the inharmony between power facilities and urban landscapes, etc.
Active Publication Date: 2018-08-10
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +2
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Problems solved by technology
High-voltage AC cable power supply solves the problems of lack of transmission corridors in urban power grids and disharmony between power facilities and urban landscape to a certain extent, but it is still limited by factors such as power supply distance and AC system stability
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] The core of the present invention is to provide a DC power distribution system.
[0034] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] A DC power distribution system, including at least one DC distribution sub-system and a new energy dist...
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The invention discloses a DC power distribution system which comprises at least one DC power distribution subsystem and a new energy power distribution subsystem, wherein the DC power distribution subsystem and the new energy power distribution subsystem both are connected with a DC bus; the DC power distribution subsystem comprises a convertor station and a DC switch; the new energy power distribution subsystem comprises a DC transformer and a DC switch, and the DC switch is connected with the DC bus; and electric energy of an AC power distribution grid is converted to a DC current by the convertor station and the DC switch, electric energy of the new energy power distribution grid is converted to a DC current by the DC transformer and the DC switch, and finally, the electric energy is transmitted through the DC bus. Compared with an AC power distribution system in the prior art, the system has the advantages that the new energy power distribution grid can be smoothly accessed, and moreover, the system can comprise a plurality of DC power distribution subsystems so as to be expanded.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a DC power distribution system. Background technique [0002] With the intensification of the energy crisis and the increasingly serious environmental pollution, my country is vigorously developing and utilizing clean energy technologies such as renewable energy. However, with the increasing use of renewable energy such as wind energy and solar energy, its distributed and intermittent characteristics make the use of traditional AC power systems to achieve large-scale new energy access to face many problems, such as the impact of new energy access larger. At the same time, it can be seen from the development direction of smart grids at home and abroad that the development of renewable energy will make the power supply on the user-side power grid, that is, the distribution network, highly decentralized. Therefore, the future urban distribution network will face the proble...
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IPC IPC(8): H02J1/00H02J3/36
CPCY02E60/60
Inventor 许烽胡列翔黄晓明陆翌裘鹏童凯宣佳卓陈骞
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY