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Multi-microgrid power supply system and control method

A multi-microgrid and power supply system technology, applied in the direction of power network operating system integration, system integration technology, information technology support system, etc., can solve problems such as easy collapse and unstable supply and demand, and achieve the effect of avoiding collapse and solving supply and demand balance.

Inactive Publication Date: 2016-07-20
CHUNGHWA TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems in the prior art, one of the purposes of the present invention is to provide a multi-microgrid power supply system and its control method to solve the problem of unstable supply and demand and easy collapse in the prior art

Method used

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  • Multi-microgrid power supply system and control method

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Embodiment Construction

[0031] Embodiments of the multi-microgrid power supply system and its control method according to the present invention will be described below with reference to the relevant drawings. For ease of understanding, the same components in the following embodiments are described with the same symbols.

[0032] see image 3 , which is a block diagram of the multi-microgrid power supply system of the present invention. As shown in the figure, the multi-micro-grid power supply system can include a plurality of micro-grids 31 and at least one micro-grid 35, and the mains 30 can be connected to each micro-grid through a mains switch. Each micro-grid 31 to micro-grid 35 can include at least One renewable energy device, at least one energy storage device, at least one power generation device and at least one load. The renewable energy device may be a solar power generation device, a wind power generation device, or a hydroelectric power generation device. The energy storage device can b...

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Abstract

The invention discloses a multi-microgrid power supply system and control method. The system comprises a plurality of microgrids, mains supply can be in connection with each microgrid through mains switches, and each microgrid can comprises at least one renewable energy device, at least one energy storing device, at least one generating set and at least one load. The energy storing device can utilize renewable energy to generate electricity; the energy storing device can store power; the generating set can generate electricity; the load can consume power. Each renewable energy device, energy storing device, generating set and load can be in direct connection with the mains switches through microgrid switches.

Description

technical field [0001] The invention relates to a power supply system, in particular to a multi-microgrid power supply system and a control method. Background technique [0002] The present invention can realize independent operation of each micro-grid when the distributed energy generation of all micro-grids is greater than the load demand. A single microgrid (MicroGrid) is composed of several distributed power generation devices and loads. The distributed power generation devices include renewable energy devices (solar photovoltaic and wind power generation devices), energy storage devices, power generation devices (fuel cells, micro turbines, diesel power generation devices) machine) etc. When the mains power grid fails or the power quality does not meet the system standards, the microgrid switches to island operation, and each microgrid can operate independently in an independent mode or in an interconnected mode to form a large microgrid operation, ensuring the microgr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/32
CPCH02J3/0073H02J3/32H02J3/38H02J3/388Y02B10/70Y02B70/30Y02B90/20Y02E40/70Y02E70/30Y02P80/14Y04S10/12Y04S20/12Y04S20/248
Inventor 薛清益黄伟吴武杰吕光钦廖仁忠林亦欣
Owner CHUNGHWA TELECOM CO LTD
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