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Micro power grid system

A technology of micro-grid and alternating current, applied in the field of micro-grid, can solve the problems of not applicable micro-grid system, and achieve the effect of small footprint

Active Publication Date: 2014-06-11
CHONGQING HAIZHUANG WINDPOWER ENG CO LTD
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Problems solved by technology

[0003] In view of this, the present invention provides a microgrid system to solve the problem that there is no microgrid system suitable for use in special areas like islands

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] see figure 1 , the embodiment of the present invention discloses a schematic structural diagram of a microgrid system. The microgrid system includes:

[0032] DC bus 11;

[0033] The energy storage device 12, the first inverter 13 and several rectifiers 14 connected in parallel to the DC bus 11;

[0034] Wind power generators 15, each rectifier 14 is connected to one or more wind power generators 15, and the AC power generated by the wind power generators ...

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Abstract

The invention provides a micro power grid system which comprises a direct current bus, an energy storage device, a first inverter, a plurality of rectifiers, a wind power generator set, a diesel oil generator set, an alternating current load, an alternating current bus and a control device, wherein the wind power generator set and the diesel oil generator set are respectively connected in parallel with the direct current bus through the rectifiers so as to rectify output alternating current power through the rectifiers and convey the alternating current power to the direct current bus; then the direct current bus is connected with the alternating current bus through a first inverter so as to supply power to the alternating current load; the diesel oil generator set is directly connected with the alternating current bus to supply backup power to the alternating current load; the energy storage device is connected in parallel with the direct current bus and is used for raising or stabilizing the voltage of the direct current bus. The micro power grid system provided by the invention takes wind energy as main power generation energy, so that rich wind resources can be fully used; by the adoption of wind power generation, the micro power grid system has the advantages of small occupied area, typhoon resistance and continuity in power supplying at night and can be applied to special districts such as an island.

Description

technical field [0001] The present invention relates to the technical field of micro-grids, and more specifically, to a micro-grid system. Background technique [0002] The current micro-grid system is usually composed of solar silicon panels, batteries and diesel engines. The main source of electrical energy in the micro-grid system is photovoltaic power generation using solar panels. Since the use of photovoltaic power generation has the disadvantages of large area, poor typhoon resistance, and unsustainable power supply at night, this micro-grid system is not suitable for islands with a small area and strong typhoons (such as the Nansha Islands and Xisha Islands). use on. Therefore, how to provide a microgrid system that can be used in special areas like islands is a technical problem to be solved urgently by those skilled in the art. Contents of the invention [0003] In view of this, the present invention provides a micro-grid system to solve the problem that there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J7/34
Inventor 王叶陶友传王珏董晔弘周明徐骋熙
Owner CHONGQING HAIZHUANG WINDPOWER ENG CO LTD
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