Fault positioning device and method for single capacitors in super-capacitor banks

A supercapacitor bank and fault location technology, which is applied in the direction of measuring devices, measuring resistance/reactance/impedance, measuring electricity, etc., can solve the problems of long test time and low efficiency, and achieve the effect of improving maintenance efficiency

Inactive Publication Date: 2015-02-04
SHAANXI QIANSHAN AVIONICS
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  • Abstract
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  • Application Information

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Problems solved by technology

Due to the large capacity of the supercapacitor, its capacity is generally charged and discharged by constant current, and calculated according to the chan

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  • Fault positioning device and method for single capacitors in super-capacitor banks
  • Fault positioning device and method for single capacitors in super-capacitor banks
  • Fault positioning device and method for single capacitors in super-capacitor banks

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[0029] The present invention controls the voltage monitoring and current monitoring circuits through a microcontroller, collects the current flowing through each group of supercapacitors and the voltage of each capacitor cell, and calculates the capacity of each supercapacitor by calculating the collected data. Calculate, and then compare the calculated value of each super capacitor with its rated capacity. If it exceeds the allowable range, it can be determined that the super capacitor is faulty.

[0030] An embodiment of the invention is described in further detail below in conjunction with the accompanying drawings, please refer to Figure 1 ~ Figure 3 .

[0031] The hardware implementation is as follows:

[0032] The series battery / capacitance monitoring chip LT6803 is used to form 13 voltage monitoring units, and the monitoring terminals are respectively connected to the two ends of each super capacitor. LT6104 is used to form the current monitoring unit 12, the output of the ...

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Abstract

The invention belongs to the technical field of aerial airborne electronics, is applied to independent power supplies of recorders, and particularly relates to a fault positioning device and method for single capacitors in super-capacitor banks. A microcontroller controls a voltage monitoring and current monitoring circuit and acquires current flowing through each super-capacitor bank and the voltage of each single capacitor, the capacity of each super-capacitor can be calculated by calculating acquired data, the calculated value of the capacity of each super-capacitor is compared with a rated value of the capacity, and the fault of the super-capacitor can be judged if the calculated value exceeds an allowable range. As a fault detection circuit of each super-capacitor and a positioning algorithm are embedded into aerial airborne electronic equipment, online detection and fault report for the super-capacitors are realized, compared with an existing method, faults of the super-capacitors can be recognized as early as possible, and the maintenance efficiency of the independent power supplies is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aviation airborne electronics, is applied to an independent power supply of a recorder, and in particular relates to a fault location device and method for a capacitor unit in a super capacitor bank. Background technique [0002] The domestic aviation cockpit audio recorder (commonly known as: black box) uses supercapacitors as the energy storage medium on the independent power supply. However, supercapacitors are mainly for industrial applications, such as electric energy storage in new energy (wind power, solar power, etc.) systems, and their reliability is not as good as military tantalum electrolytic capacitors. Moreover, since the supercapacitor is a liquid electrolytic capacitor, according to its sealing condition, its electrolyte will gradually volatilize after a certain period of time, resulting in a decrease in capacitor capacity or even failure. [0003] For the detection of supercapacitor fail...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R27/26
Inventor 田军
Owner SHAANXI QIANSHAN AVIONICS
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