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Power management device and method

A power management and power technology, applied in circuit devices, AC/DC network circuit layout, photovoltaic power generation, etc., can solve the problems of heavy weight, large volume of low-frequency transformers, and uneconomical benefits.

Active Publication Date: 2022-04-19
NANYANG TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While such voltage differences can be compensated by low frequency transformers, low frequency transformers are bulky, heavy and uneconomical

Method used

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  • Power management device and method
  • Power management device and method
  • Power management device and method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0043] image 3 Shown is a power management system according to an embodiment of the invention. The energy management system forms an AC-DC hybrid microgrid that can be electronically reconfigured.

[0044] like image 3 As shown, the power management system includes: a highly applicable plug-and-play integrated AC-DC hybrid micro-grid module 300 connected to a variety of electric energy sources (both AC and DC); multiple energy storage devices; and multiple Load (both AC and DC).

[0045] like image 3 As shown, a wind turbine (or a plurality of wind turbines) 310 is connected to an AC / DC microgrid module 300 through a smart interface 312 . Smart interface 312 includes: local controller 312a; local communication bus interface 312b, which may be implemented as a controller area network (CAN) bus interface; memory 312c, which may be implemented as flash memory; power interface 312d; A communication device may be implemented as a wireless antenna. The communication device ...

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PUM

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Abstract

A power management device is disclosed. The device includes: a plurality of interface ports for establishing electrical connection with an electric energy source and / or an electric energy load and / or an electric energy storage device; a plurality of power converters, each power converter having an input end and an output end; a relay array of relay units configured to be switchable between connections to the input terminals of the plurality of power converters and connections to the output terminals of the plurality of power converters; a controller for Control signals for the relay units in the relay array are generated and thereby set the connections between the inputs and outputs of the combinations formed by the power converters.

Description

technical field [0001] The embodiments of the present invention relate to electric energy management, in particular to the management of electric energy conversion between different electric energy sources and loads in microgrid applications. Background technique [0002] Today, renewable energy sources (RES), such as solar photovoltaics (PV) and wind turbines, are becoming more and more popular. This is due in part to growing concerns over the depletion of non-renewable energy sources based on fossil fuels and the carbon emissions associated with the use of non-renewable energy sources. The generation of renewable energy depends on actual weather conditions such as wind speed, solar radiation and temperature. Such conditions can undergo drastic and rapid changes over time. In order to ensure the stable energy supply of renewable energy, direct current (DC) energy storage devices such as battery packs and supercapacitors are usually used to compensate for the output power ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J4/00H02J3/02H02J3/38
CPCH02J3/02H02J3/38H02J4/00H02J2310/10H02J2300/10H02J2300/20H02J3/381Y04S20/222Y02B70/3225H02J2300/24H02J2300/28Y02E10/56
Inventor 潘学伟王鹏肖建芳朱福鸿
Owner NANYANG TECH UNIV
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