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New energy grid connection or local absorption system based on electric energy router

A router and new energy technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of low efficiency and high topology cost, achieve low harmonics, eliminate cycle energy, and reduce turn-off loss

Active Publication Date: 2019-10-15
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new energy grid-connected or on-site consumption system based on an electric energy router to solve the problems of high topology cost and low efficiency of new energy grid-connected or on-site consumption systems in the prior art

Method used

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  • New energy grid connection or local absorption system based on electric energy router
  • New energy grid connection or local absorption system based on electric energy router
  • New energy grid connection or local absorption system based on electric energy router

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] figure 1It is a structural schematic diagram of the new energy grid-connected or on-site consumption system based on the electric energy router of the present invention. Such as figure 1 As shown, the new...

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Abstract

The invention discloses a new energy grid connection or local absorption system based on an electric energy router. The system includes an AC power grid, an electric energy router and multiple piecesof power equipment. The electric energy router includes an inductor, a cascaded H-bridge bidirectional converter and multiple resonant isolated bidirectional DC / DC converters. The AC sides of multipleH-bridge topologies of the cascaded H-bridge bidirectional converter are cascaded, and are connected to the AC power grid through the inductor. The multiple H-bridge topologies and the multiple resonant isolated bidirectional DC / DC converters are connected in a one-to-one correspondence manner. The DC sides of the H-bridge topologies are connected with the primary DC sides of the resonant isolated bidirectional DC / DC converters. The secondary DC sides of the resonant isolated bidirectional DC / DC converters form a DC bus, and the power equipment is connected to the DC bus. The power equipmentincludes new energy equipment, energy storage battery equipment and load equipment. The new energy grid connection or local absorption system has the advantages of high efficiency, high reliability, wide gain, bidirectional energy transmission, dynamic adjustment of power quality, and the like.

Description

technical field [0001] The invention relates to the field of electrical automation equipment, in particular to a new energy grid-connected or on-site consumption system based on an electric energy router. Background technique [0002] With the gradual reduction of fossil energy, renewable energy such as wind power and photovoltaic power generation will be widely used in the future. In order to cope with the challenges brought by wind power and photovoltaics to the safe and stable operation of the power grid, a large-capacity battery energy storage system is also required to stabilize the power fluctuations of new energy sources, adjust peak frequency and improve power quality. [0003] First of all, due to the characteristics of high uncertainty, high uncontrollability, wide distribution, remote location, harsh operating environment, low equipment reliability, and heavy operation and maintenance workload of new energy power generation, with the increase in the number of new ...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCH02J3/38H02J3/388
Inventor 姚钢周荔丹
Owner SHANGHAI JIAO TONG UNIV
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