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An energy router with electromagnetic stress softening characteristics and its control method

A technology of electromagnetic stress and control method, which is applied in the field of power electronics and can solve problems such as damage and uneven electromagnetic stress

Active Publication Date: 2021-11-30
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that the traditional energy router is damaged due to uneven electromagnetic stress and improve the reliability of the energy router, the present invention proposes an energy router with electromagnetic stress softening characteristics and its control method

Method used

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  • An energy router with electromagnetic stress softening characteristics and its control method
  • An energy router with electromagnetic stress softening characteristics and its control method
  • An energy router with electromagnetic stress softening characteristics and its control method

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Embodiment 1

[0063] refer to Figure 7a with Figure 7b It is a structural schematic diagram of an energy router with electromagnetic stress softening properties. Figure 7a with Figure 7b In , ports with the same symbol represent the same port. A three-phase full-bridge unit is composed of three single-phase units connected in parallel, and adopts an inverter control method with a phase angle difference of 120° to make the output line voltage symmetrical. The three-phase inverter output is symmetrical, because the three-phase power output is as symmetrical as possible, and harmonics will appear if it is asymmetrical.

[0064] The dynamic silicon core planning strategy energy router with electromagnetic stress softening with 4 full-bridge units is used for representative illustration. One inverter unit has three half-bridge inverter branches, and each half-bridge inverter branch contains two upper and lower There are two switching tubes in the bridge arm, so a three-phase inverter uni...

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Abstract

The invention discloses an energy router with electromagnetic stress softening characteristics and a control method thereof. The electromagnetic stress softening mechanism of power electronic devices is based on a dynamic silicon core planning strategy. In the dynamic silicon core planning strategy, four 3-phase and a half The bridge converter is designed as an all-in-one device, where all the IGBTs are combined into a dynamic silicon matrix through a bidirectional switch array. The energy router contains an integrated IGBT dynamic silicon core matrix responsible for the energy transmission and control of the four ports. The initial state of the IGBT matrix does not determine the port to which the silicon core belongs. When working, the core controller judges the electromagnetic stress distribution status of the four output ports, and dynamically distributes the energy to the ports of the router IGBT chip through the bidirectional switch array. Allocate more IGBT chips to these two ports, so as to achieve the effect of softening the electromagnetic stress of power electronic devices.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to an energy router with electromagnetic stress softening characteristics and a control method thereof. Background technique [0002] In response to the sustainable development theme of "low carbon and environmental protection", the society is paying more and more attention to worldwide issues such as environmental pollution and the depletion of non-renewable energy. The Energy Internet has emerged as a solution to realize the access and management of renewable energy. The intelligence of the power system makes devices and equipment tend to be digital, that is, the power system is developing in the direction of power electronics. [0003] Although renewable energy has the advantages of being clean and inexhaustible, it also has disadvantages: it cannot provide sustainable energy. The use of renewable energy for power generation will cause instability and unce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/06H02J3/46
CPCH02J3/06H02J3/46
Inventor 石勇黄潮金徐卓异户毅仁张驰
Owner SHAANXI UNIV OF SCI & TECH
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