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AC-DC microgrid system

An AC-DC, micro-grid technology, applied in the direction of AC network circuit, AC network load balancing, single-network parallel feeding arrangement, etc., can solve problems such as waste of resources, reduce economic losses, adjust the peak value of large power grids, and effectively large power grids peak effect

Pending Publication Date: 2020-04-10
ZHEJIANG HUAYUN ELECTRIC POWER ENG DESIGN CONSULTATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an AC / DC microgrid system to solve the technical problem of waste of resources in the existing AC / DC microgrid system

Method used

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  • AC-DC microgrid system

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Embodiment Construction

[0015] Such as figure 1 As shown, an AC-DC micro-grid system includes a 10kV AC bus 1, a DC bus 2, a data center server 3 and an energy management system 4. The 10kV AC bus 1 is connected to a section I 400V AC bus 5 and a section II 400V The AC bus 6 and the 400V AC bus 7 of section III, the 400V AC bus 5 of section I and the 400V AC bus 6 of section II are all connected to the data center server 3, and the 400V AC bus 6 of section II and the 400V AC bus 7 of section III are equipped with There is an AC / DC device 8 connected to the DC bus 2, the 400V AC bus 6 of section II and the 400V AC bus 7 of section III are connected with an energy storage station 8 and an optical storage system 9, the data center server 3, the energy storage station 8 and the optical storage system 9 are connected to the energy management system 4, and the control device and the communication device are connected to the direct current bus.

[0016] The 400V AC bus 5 of section I, the 400V AC bus 6 of ...

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Abstract

The invention relates to an AC / DC microgrid system. The system comprises a 10kV alternating-current bus, a direct-current bus, a data center server and an energy management system, an I-section 400V alternating-current bus and an II-section 400V alternating-current bus are both connected with the data center server, and the II-section 400V alternating-current bus and an III-section 400V alternating-current bus are both connected with an energy storage station and an optical storage system. The system has the advantages that the data center server, the energy storage station and the optical storage system are respectively accessed through the I-section 400V alternating current bus, the II-section 400V alternating current bus and the III-section 400V alternating current bus which are connected to a 10kV alternating current bus; and the energy storage station and the optical storage system are arranged, and then the support of an emergency power supply is provided for a data center and station direct current, so the installation of the UPS and the storage battery of the transformer substation and the data center station is canceled, the source network load storage coordination controlis carried out through the energy management system, the reliable and efficient energy utilization is realized, and the instability of the power supply of a large power grid can be effectively reduced and the electric energy quality is ensured because the 400V alternating current bus adopts three independent sections.

Description

technical field [0001] The invention relates to an AC and DC microgrid system. Background technique [0002] The AC / DC microgrid system refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, related loads, monitoring and protection devices, and is an autonomous system capable of self-control, protection and management. , and there is no unified source-network-load-storage coordination control within the existing microgrid system, resulting in waste of resources and energy consumption, and the original data center station and substation need to install UPS or batteries. When UPS or batteries fail, As a result, data center stations and substations cannot be supported by power sources, resulting in technical problems that the AC and DC microgrid systems cannot work normally. Contents of the invention [0003] The purpose of the present invention is to provide an AC / DC micro-grid sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/28H02J9/06
CPCH02J3/00H02J3/28H02J9/06
Inventor 尹康杜振东金国胜高亚栋俞辰颖方瑜周盈吴祖咸
Owner ZHEJIANG HUAYUN ELECTRIC POWER ENG DESIGN CONSULTATION CO LTD
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