Hybrid energy storage converter device and operation control method thereof

A converter device and operation control technology, applied in circuit devices, battery circuit devices, output power conversion devices, etc., can solve the problem that energy storage devices cannot meet the needs of large-scale energy storage systems, and achieve the benefits of design and reduce insulation. Requirements and high reliability

Active Publication Date: 2013-07-24
XUJI GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a hybrid energy storage converter device and its operation control method to solve the problem that existing energy storage devices cannot meet the needs of large-scale energy storage systems

Method used

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  • Hybrid energy storage converter device and operation control method thereof

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Device embodiment of the present invention:

[0026] Such as figure 1 , KM3 and KM4 are the supercapacitor circuit switch and the lead-acid battery circuit switch respectively, which are respectively used to connect the supercapacitor bank and the lead-acid battery bank, and KM3 and KM4 are connected to a DC bus, which is connected to the bidirectional DC / DC module One side of the bidirectional AC / DC module is connected to the DC side of the bidirectional AC / DC module, and the other side of the bidirectional AC / DC module is connected through a step-down isolation transformer To the power grid, the DC side of the bidirectional AC / DC module is also equipped with an energy storage capacitor, and the AC side of the bidirectional AC / DC module is connected to an LC filter circuit. KM1 is the contactor switch of the AC main circuit, and KM2 is the charging c...

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Abstract

The invention relates to a hybrid energy storage converter device and an operation control method thereof. According to the hybrid energy storage converter device, two independent energy storage media, i.e. a lead-acid storage battery and a super capacitor, are connected into a circuit to guarantee the independencies of the lead-acid storage battery and the super capacitor; the main circuit of the energy storage converter device adopts a two-stage conversion topological structure of AC(alternating current)/DC(direct current)+DC/DC, and the operation reliability is higher; when the energy storage device is started to operate, the lead-acid storage battery and the super capacitor enter a hybrid working mode to realize the advantage complementation of electric energy; when a certain energy storage medium fails, a loop in which the energy storage medium is positioned is cut off so as to realize the coordination control of the lead-acid storage battery and the super capacitor; and the technical problem that the traditional energy storage device can not satisfy the requirement of a large-scale energy storage system is solved.

Description

technical field [0001] The invention relates to a hybrid energy storage converter device and an operation control method thereof. Background technique [0002] The application of large-scale energy storage devices in new energy power generation energy storage stations, electric vehicle charging and discharging storage stations, distributed power supply / micro-grid energy storage stations, urban centralized and distributed energy storage stations, etc., requires frequent charging and discharging, fast Fast charge and discharge response speed, continuous energy access. The circuit topology and control logic of energy storage converter devices are mostly aimed at a single energy storage medium. The single use of lead-acid batteries and super capacitors cannot meet the needs of large-scale energy storage systems. The parallel use of the two can achieve complementary advantages. The design of the circuit topology and control logic of this hybrid energy storage medium is not yet m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H02J7/34H02M1/36
Inventor 陈常曦曹智慧陈世锋张冲王翼胡丽明柳劲松时珊珊张宇陈斌郑高
Owner XUJI GRP
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