Multi-DC microgrid-based power supply system of green data center

A DC micro-grid and data center technology, applied in parallel operation of DC power supplies, AC network circuits, battery circuit devices, etc., can solve the problems of restricting the application and development of distributed power sources, high intermittent and randomness, and high cost of single-machine access problems, to achieve the effect of improving the diversity of power supply, improving environmental protection and low carbon, and improving reliability and safety

Inactive Publication Date: 2017-08-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

However, distributed power generation, especially photovoltaic power generation and wind power generation, has high intermittency and randomness, and its stand-alone access cost is high and control is difficult. Compared with large po...

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  • Multi-DC microgrid-based power supply system of green data center
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  • Multi-DC microgrid-based power supply system of green data center

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Embodiment Construction

[0024] The green data center multi-DC microgrid power supply system of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] The green data center multi-DC micro-grid power supply system of the present invention has a DC micro-grid architecture as a whole, and is divided into 6 units. Unit 1 is a public grid unit, and the public grid is connected to the DC bus 6 through a bidirectional AC-DC converter. , through the bidirectional AC-DC converter, it can perform power conversion with the DC microgrid. When the public grid fails, it can be disconnected from the DC bus, so that the DC microgrid can continue to supply power to the data center load. Unit 2 is a battery energy storage unit, which provides support for the DC microgrid through a bidirectional DC-DC converter and stabilizes the system power. Unit 3 is a distributed power unit, including three types of photovoltaic power generation, wind power generation, and micro...

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Abstract

The invention discloses a multi-DC microgrid-based power supply system of a green data center. Power is supplied to the green data center by renewable energy sources such as a multi-DC microgrid, solar energy and wind energy. In the system, an architecture is a DC microgrid architecture, each unit is connected onto a 380V high-voltage DC bus, power exchange can be performed between a public grid unit and a DC microgrid, so that the power is supplied to the green data center, and power support is provided for energy storage of a storage battery in the system; a wind power generator, a micro-gas turbine and a photovoltaic cell are arranged on the high-voltage DC bus, the micro system provides green renewable energy sources, and meanwhile, a high-power AC-DC load is also connected onto the high-voltage DC bus; and each sub-DC microgrid in the system is connected onto the high-voltage DC bus through a converter, and a low-power AC-DC load and a storage battery energy storage and distributed power supply are arranged in each sub-DC microgrid. Therefore, a dynamic and flexible multi-DC microgrid power supply system of the green data center is formed by such structure.

Description

technical field [0001] The invention relates to a green data center power supply system. In particular, it relates to a system for powering green data centers using multiple DC microgrids. Background technique [0002] With the change of the world economic situation, the information industry and the electronic information industry are playing an increasingly important role. These two emerging industries are also called new growth points of the national economy in our country. The rise of the Internet has become a new economic growth point recognized by all countries in the world, and it is also a new commanding height of national comprehensive national strength. In order to seize this commanding height, all countries in the world are stepping up the development of industries with confidence building as the core. The data center is the foundation of the development of the Internet industry and the guarantee for the safe operation of the Internet. For the data center, the sta...

Claims

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Application Information

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IPC IPC(8): H02J1/10H02J7/35H02J3/38
CPCH02J1/10H02J3/381H02J3/383H02J7/35Y02E10/56Y02E10/76
Inventor 姜文俊刘念
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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