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Digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system

A low-voltage direct current, energy feedback technology, applied in the direction of control/regulation system, adjustment of electrical variables, conversion of DC power input to DC power output, etc., can solve problems such as not suitable for low-voltage and high-current DC power supply aging tests, and achieve aging test problems, increased device efficiency, and the effects of easy programming control

Inactive Publication Date: 2012-12-19
SOUTH CHINA UNIV OF TECH
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  • Description
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AI Technical Summary

Problems solved by technology

However, this electronic load is designed for the aging test of the traditional 48V DC communication power supply, and it is also not suitable for the aging test of the low-voltage and high-current DC power supply.

Method used

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  • Digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system
  • Digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system
  • Digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system

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Embodiment

[0036] Such as figure 1 As shown, a digitally controlled low-voltage DC power supply energy feedback electronic load boosting system according to the present invention, the system includes a main circuit and a control circuit. The main circuit is composed of a Boost step-up module 102 and a DC-DC step-up conversion module 103 connected in sequence, the Boost step-up module 102 is connected with a parallel low-voltage DC power supply 101, and the DC-DC step-up conversion module 103 is connected with The energy feedback type electronic load is connected to the grid-connected inverter system; the control circuit includes a fault protection circuit module, a current and voltage sampling and signal processing module 108, a DSP embedded system module 104 and a high-frequency drive module 109 connected to each other.

[0037] The fault protection circuit module includes an overvoltage and undervoltage fault protection circuit 105, an overcurrent fault protection circuit 106, and an o...

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Abstract

The invention discloses a digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system comprising a main circuit and a control circuit. The main circuit comprises a Boost module and a DC (direct current)-DC boosting conversion module which are sequentially connected, the Boost module is connected with a parallel low-voltage direct-current power source, and the DC-DC boosting conversion module is connected with a grid-connected inverter system. The control circuit comprises a fault protection circuit module, a current and voltage sampling and signal processing module, a DSP (digital signal processor) embedded type system module and a high-frequency driving module. The digitalized-control low-voltage direct-current power source energy feedback type electronic loading boosting system thoroughly solves the problems that energy feedback is hard to realize during ageing of the low-voltage direct-current power source and a conventional static loading is energy-consuming, heating and large in size, and is energy-saving, efficient, environment-friendly, reliable in performance, high in automation degree and stable in power source ageing quality, and is particularly applicable to reliability test, on-load test and output characteristic test of the low-voltage direct-current power source.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a digitally controlled low-voltage DC power supply energy feedback type electronic load step-up system. Background technique [0002] With the development of power electronics technology and the improvement of industrialization level, various power supplies are widely used in various links of social production such as metallurgy, energy, and chemical industry. Whether the power supply is reliable or not is directly related to the safety and accuracy of the system operation, affects the safety of people's lives, and is even more related to the stable development of the national economy in terms of production. [0003] In order to ensure the quality of power supply products and meet the performance indicators in line with the factory requirements, the power supply must be tested for 24 to 72 hours or even longer before leaving the factory, including: power supply reliabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02J3/38
Inventor 吴开源赵卓立王小珺恒功淳章涛
Owner SOUTH CHINA UNIV OF TECH
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