Intelligent equalization device for super-capacitor

A technology of equalization device and super capacitor, which is applied in the direction of circuit device, charge equalization circuit, battery circuit device, etc., can solve the problem of unbalanced voltage of single capacitor, and achieve the effect of large balanced current, small loss and high efficiency

Pending Publication Date: 2019-08-13
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a supercapacitor intelligent equa

Method used

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  • Intelligent equalization device for super-capacitor
  • Intelligent equalization device for super-capacitor
  • Intelligent equalization device for super-capacitor

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Embodiment Construction

[0029] Such as figure 1 As shown, the supercapacitor intelligent equalization device is composed of a sampling module 1, an intelligent control module 2, a driving module 3, and an equalization module 4.

[0030] The sampling module 1 is connected to the capacitor bank, and collects information such as voltage, temperature, connection state and capacitor bank current of each single capacitor in the capacitor bank.

[0031] The intelligent control module 2 is composed of a microcontroller, an input circuit and an output circuit. The input circuit is connected to the acquisition module, and the collected data is transmitted to the microcontroller. The output circuit is connected to the drive module, and the control signal of the microcontroller is transmitted to the drive. module, the microcontroller judges whether the state of charge of each single capacitor is within the specified range when the capacitor bank is charging or discharging according to the sampling value of the a...

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Abstract

The invention discloses an intelligent equalization device for a super-capacitor, and the device comprises a driving module and an equalization module, and is characterized in that the driving moduleisolates and amplifies a high-frequency PWM control signal outputted by an intelligent control module and then applies the high-frequency PWM control signal to a power switch tube of the equalizationmodule; the equalization module is connected with a capacitor bank; the equalization module consists of a plurality of same equalization units, and each single capacitor is corresponding to one equalization unit; each equalization unit comprises an electronic transformer and two power switch tubes; according to the electromagnetic isolation effect of the transformer, the equalization units are divided into a transformer primary side circuit and a transformer secondary side circuit; the transformer primary side is connected with one power switch tube and one single capacitor in series to form the transformer primary side circuit, and the transformer secondary side is connected with the other power switch tube and the capacitor bank in series to form the transformer secondary side circuit. According to the invention, the device can quickly and effectively enable the capacitor bank with the unbalanced state of a single capacitor to reach in a relatively balanced state, and enlarges the actual use capacity of the capacitor bank.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a supercapacitor intelligent equalization technology. Background technique [0002] Compared with batteries and traditional physical capacitors, supercapacitors have the characteristics of high power density, long cycle life, wide operating temperature range, maintenance-free, and environmental protection, so their applications are becoming more and more extensive. In the fields of auxiliary peak power, backup power supply, storage of regenerative energy, and alternative power supply, supercapacitors are considered to be one of the most promising energy storage methods due to their excellent performance. Currently, the single voltage of supercapacitors is not high (generally 1-4V), so in practical applications, supercapacitors are generally used in series or in parallel to provide more energy and greater power. Due to the inconsistency of parameters in the man...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0019
Inventor 杨才明梁一桥祁炜雯孙维真张静罗刚沈祥吴跨宇朱峰韩其国
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO
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