Modularized electric energy router combination circuit

A combined circuit and router technology, which is applied in the direction of instruments, electrical components, and adjustment of electrical variables, can solve the problems of low utilization rate of device current capacity and low matching degree, and achieve serial design and industrial production with a high degree of modularization , the effect of improving the overall efficiency

Inactive Publication Date: 2017-09-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a modular power router combination circuit to solve the problems of low matching degree of power router combination and low utilization rate of current capacity of some devices in the prior art

Method used

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  • Modularized electric energy router combination circuit
  • Modularized electric energy router combination circuit
  • Modularized electric energy router combination circuit

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] The present invention aims to propose a modular electric energy router combined circuit. figure 1 It is the topological structure diagram of the main circuit of the power router of the present invention, such as figure 1 As shown, the main circuit topology of the power router adopts three-phase power supply. Specifically, the main circuit topology of the power router includes a modular rectification-isolation-level converter and an inverter-level converter. The three phases of the rectification-isolation-level converter are connected in parallel through a high-voltage DC bus. The stage converters are connected through a low-voltage DC bus.

[0024] The rectification isolation stage converter includes three phases, and each phase includes n converter sub-modules of the upper bridge arm, n converter sub-modules of the lower bridge arm, and two bridge a...

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Abstract

The invention discloses a modularized electric energy router combination circuit which comprises a high voltage there-phase AC port, a high voltage DC port, a low voltage DC port and a low voltage three-phase AC port and internally comprises a high voltage DC bus and a low voltage DC bus and an electric energy router main circuit topology. The electric energy router main circuit topology comprises a modularized rectification and isolation level converter and an inversion level converter. The rectification and isolation level converter and the inversion level converter are connected through the low voltage DC bus. The rectification and isolation level converter submodule uses an H-bridge-based three-level resonant high-frequency double active bridge isolation converter structure. With application of the modularized electric energy router combination circuit, the problem of low degree of electric energy router combination matching in the prior art can be solved, and the device current capacity utilization rate of the electric energy router can be partially enhanced from the topology structure.

Description

technical field [0001] The invention belongs to the technical field of power electronic converters, and in particular relates to a modular electric energy router combined circuit. Background technique [0002] As the energy crisis and environmental issues become increasingly prominent, more and more renewable energy is connected to the grid, which poses many challenges to the traditional grid. Energy Internet has emerged under the background of this application. At the same time, with the development of power electronics technology, information technology, and control science, the power router, as a key device in the Energy Internet, plays an important role in power conversion, energy interconnection, power routing and autonomous management. Among them, the main circuit topology based on power electronic transformers is currently the most widely used power router topology, and due to the limitation of current device withstand voltage levels, power routers mostly adopt multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M7/217H02M7/219H02M7/5387
CPCH02M3/33576H02M7/2173H02M7/219H02M7/5387H02M1/007
Inventor 翁幸袁立强李婧孙建宁赵争鸣
Owner TSINGHUA UNIV
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