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Super capacitor-based aging state estimation detection system and method

A technology of supercapacitors and aging states, which is applied in the direction of instruments, measuring electronics, measuring devices, etc., to achieve the effects of improving detection accuracy, clear data directionality, and strong pertinence

Active Publication Date: 2015-01-21
智车上海实业有限公司
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Problems solved by technology

[0004] Within the scope of the published literature at home and abroad, although supercapacitors are current research hotspots, they mainly focus on the production process, preparation methods and material selection of supercapacitors themselves, involving the estimation of the aging state in large-scale energy storage systems. and its detection system are rarely reported in the literature

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  • Super capacitor-based aging state estimation detection system and method
  • Super capacitor-based aging state estimation detection system and method

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Embodiment

[0033] Such as figure 1 As shown, a supercapacitor-based aging state estimation and detection system includes a programmable power supply 10, a tested supercapacitor 20, a programmable load 30, a data storage unit 40, a data acquisition communication unit 41, a data operation processing unit 42 and an aging State estimation unit 43 .

[0034] Among them, the programmable power supply 10 includes a power network input, a power conversion device, and a power control unit, wherein the power network input provides the electric energy of the entire detection system, and the specific working condition parameters to be detected are input through the power control unit, and through the power conversion The device gives the desired current waveform. The output end of the power network is connected to the power conversion device; one end of the power conversion device is connected to the power supply network, and the other end is connected to the supercapacitor under test, and the prog...

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Abstract

The invention relates to a super capacitor-based aging state estimation detection system and method. The super capacitor-based aging state estimation detection system includes a programmable power source, a tested super capacitor, a programmable load, a data storage unit, a data acquisition communication unit, a data operating processing unit and an aging state estimation unit. The detection method includes the following steps that: a required condition is set, and test data are acquired and are subjected to frequency division and noise reduction pre-processing; model parameters are identified according to the model of the super capacitor, and characteristic parameters are calculated; and then, aging state evaluation is performed. Compared with the prior art, the super capacitor-based aging state estimation detection system and method of the invention can detect the aging state of the super capacitor in different stages, and has the advantages of high application universality, high condition targeted performance, accurate aging state judgment, short consumed time of aging detection, high reliability of results and the like.

Description

technical field [0001] The invention relates to a supercapacitor detection system, in particular to a supercapacitor-based aging state estimation and detection system and method. Background technique [0002] The development of renewable energy and energy-saving technologies are currently research hotspots around the world, and supercapacitors are one of the devices that have developed rapidly in recent years. Their energy density is higher than that of traditional capacitors, and their power density is much higher than that of fuel cells and batteries. High efficiency, wide operating temperature range, long cycle life and other advantages are suitable for high frequency, high current fast charging and discharging occasions. [0003] At present, the failure characteristics and aging state of batteries have been extensively studied at home and abroad, and the corresponding detection system is gradually adding monomer state detection, but the related aspects of supercapacitors...

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Application Information

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IPC IPC(8): G01R31/00
Inventor 张逸成顾帅韦莉姚勇涛沈玉琢肖海山李万欣姚飞张佳佳刘帅詹地夫叶尚斌
Owner 智车上海实业有限公司
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