Bidirectional electric energy metering device for DAB converter

An electric energy metering device and electric energy metering chip technology, which are applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of inability to adapt to the requirements of bidirectional measurement of DAB converters, inability to monitor the conversion efficiency of DAB converters, etc.

Inactive Publication Date: 2021-04-23
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the inability of the traditional AC power metering device in the prior art to meet the requirements of the DAB converter for bidirectional metering and the inability to monitor the conversion efficiency of the DAB converter under different operating conditions, the present invention provides a bidirectional power meter for the DAB converter. Metering device, the purpose is to solve the power metering of DAB converter for power output and feedback in different scenarios

Method used

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  • Bidirectional electric energy metering device for DAB converter
  • Bidirectional electric energy metering device for DAB converter
  • Bidirectional electric energy metering device for DAB converter

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Embodiment Construction

[0035] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0036] see figure 1 with figure 2 , a bidirectional electric energy metering device for a DAB converter, comprising a voltage acquisition module 1, a current acquisition module 2, a signal conditioning module 3, an isolation module 4, a bidirectional electric energy metering chip 5, a microprocessor 6, a storage module 7, buttons Module 8, communication module 9, power supply module 10, display module 11, the output end of described voltage acquisition module 1 and current acquisition module 2 are all connected to the input end of signal conditioning module 3; The output end of described signal conditioning module 3 is connected To the input end of the isolat...

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Abstract

The invention discloses a bidirectional electric energy metering device for a DAB converter. The bidirectional electric energy metering device comprises a voltage acquisition module, a current acquisition module, a signal conditioning module, an isolation module, a bidirectional electric energy metering chip, a microprocessor, a storage module, a key module, a communication module, a power supply module and a display module. The voltage sampling module and the current sampling module acquire voltage and current signals of the primary side and the secondary side of a DAB converter and transmit the signals to the bidirectional electric energy metering chip through the signal conditioning module and the isolation module for metering analysis. Data transmission is performed through the communication module, so that remote query is facilitated. According to the invention, the voltage, current, power and electric energy of the primary side and the secondary side of the DAB converter can be monitored in real time; and the measured data can be analyzed, so that the operation state and the conversion efficiency of the DAB converter can be obtained.

Description

technical field [0001] The invention belongs to the technical field of electric power measurement, and in particular relates to a bidirectional electric energy metering device for a DAB converter. Background technique [0002] In recent years, power electronics technology has played a huge role in energy saving and emission reduction. Important applications such as new energy grid connection, electric vehicles, aviation power systems, and ship power systems have brought new challenges to the energy recovery and utilization of power electronic converters. Therefore, the corresponding converter is required to have the characteristics of bidirectional flow of power. At present, bidirectional DC / DC converters are widely used in occasions requiring bidirectional flow of energy. The circuit usually adopts a dual active bridge (Dual Active Bridge, DAB) topology. The DAB converter can realize the zero-voltage switching technology of the switching tube, and it has the advantages of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/10
CPCG01R22/10
Inventor 林梦宇张珺谢岳
Owner CHINA JILIANG UNIV
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