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Multiport Energy Router

A router and multi-port technology, applied in the field of multi-port energy router product development, can solve the problems of current loss and heat generation, poor equipment compatibility, and increased manufacturing costs

Active Publication Date: 2020-02-21
上海大周能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that in the case of high power, if the distance between the source node and the load node is large, it will cause a large current loss, serious heat generation, and increase the manufacturing cost.
In addition, a single DC bus can only support equipment with the corresponding voltage level, and the compatibility of equipment is poor.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0066] A seven-port energy router product

[0067] The product includes six converters with different functions (the source of the converter can be purchased according to the functional needs, and the design of the converter itself is not the key to the realization of the technical solution of the present invention), an energy manager, and a positive and negative DC bus, forming a positive and negative double loop Network DC busbar system, the overall design of this product is integrated in the cabinet, which can provide DC busbars with two different voltage levels, namely 750V and 375V. Through six different converters and energy managers, the public grid, wind power generation, energy storage equipment, photovoltaic power generation, AC loads, and DC loads can be coordinated and controlled for operation.

[0068] Such as figure 1 As shown, the system of the present invention includes a first-port modular converter, a second-port modular off-grid inverter, a third-port modu...

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Abstract

The invention provides a multi-port energy router. The multi-port energy router is characterized in that a positive-negative ring network of double DC buses, that is, a positive-negative 375V DC bus ring network is proposed in order to construct a 375V / 750V double DC bus system; by means of coordinated operation of a fourth port-isolated DC converter and energy storage equipment, the function of stabilizing the two DC buses in the 375V / 750V double DC bus system is achieved, and the power supply quality of the system is improved; by means of power control over two ports of the fourth port-isolated DC converter, electric energy interaction of the two DC buses is achieved, and it is guaranteed that the two DC buses can still keep at 375V and 750V under different loads; and on the constructed375V / 750V double DC bus system, a plurality of different converters serve as ports to connect a public power grid, a wind power generator, energy storage equipment, a photovoltaic power generator, anAC load and a DC load, and then the various ports are controlled to operate coordinately by an energy manager.

Description

technical field [0001] The invention belongs to the field of DC microgrid and energy Internet, and relates to the development of multi-port energy router products. Background technique [0002] Drawing on the design concept of the data exchange device "router" in the Internet, the concept of "energy router" has also been proposed, and the research and development of energy Internet in energy access, energy control and energy transmission has become active, so as to realize energy network interconnection , scheduling and control. [0003] The energy router is the key technology of the Energy Internet. It is based on the existing power grid, based on advanced power electronics technology and information network technology, providing flexible and diverse electrical interfaces, and realizing a large number of distributed renewable energy generation equipment and energy storage equipment. 1. Various electric loads are connected to the grid, and have communication and intelligent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/10H02J1/14
CPCH02J1/082H02J1/10H02J1/14
Inventor 侯院军袁磊王涛
Owner 上海大周能源技术有限公司
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