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Three-port electric energy router device

A router and three-port technology, which is applied in the field of three-port power router devices, can solve problems such as load damage and port voltage rise, and achieve the effects of increasing speed, reducing quantity, and improving anti-interference ability

Pending Publication Date: 2022-03-15
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The improvement of power density will inevitably drive the power electronic power conversion technology to develop in the direction of high-frequency power conversion. The resulting high-frequency oscillation problem is becoming more and more apparent. Oscillating overvoltage will cause the port voltage to rise, which will easily trigger the protection action of the port load, and even cause load damage

Method used

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Embodiment Construction

[0046] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0047] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0048] In the case of no conflict, the embodiments in the present application and the features i...

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Abstract

The invention provides a three-port electric energy router device, and belongs to the technical field of alternating current and direct current power distribution systems. According to the specific scheme, the device comprises a high-frequency alternating-current bus, a low-voltage direct-current port, a high-voltage direct-current port and a low-voltage alternating-current port. The low-voltage direct-current port is provided with a first power module and is connected with the high-frequency alternating-current bus; and the high-voltage direct-current port is provided with a second power module and is connected with the high-frequency alternating-current bus. Power conversion links can be effectively reduced, the number of power semiconductor devices is reduced, and the cost is reduced.

Description

technical field [0001] The present application relates to the technical field of AC and DC power distribution systems, in particular to a three-port power router device. Background technique [0002] A large number of distributed renewable energy generation devices, energy storage devices and DC loads are connected to the grid. However, new energy power generation, energy storage and other equipment have problems such as dispersion, intermittency, randomness and uncontrollability, and new DC loads represented by new energy vehicles have problems such as uncertainty. The impact of these problems on the power grid system is: the power generation method has changed from single and centralized to centralized and distributed coexistence; the flow of electric energy has changed from one-way flow to multi-directional flow, which increases the complexity of power flow and management of the power grid system. However, the operation mode of the traditional power grid system cannot ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/44H02M1/36H02M3/335H02M1/00
CPCH02M1/44H02M1/36H02M3/3353H02M1/00
Inventor 刘洋李立生张世栋于海东黄敏李明洋刘文彬孙勇张林利王峰刘合金张鹏平苏国强李帅由新红
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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