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Energy management system for power station transformer vibration energy collector

An energy management system, energy harvester technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of large volume and mass, limited battery life, It can improve the efficiency of energy storage, overcome the problems of load matching and circuit loss, and solve problems such as difficulty in replacement.

Inactive Publication Date: 2017-06-20
李福来
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Power line power supply is costly, large in size and mass, and difficult to maintain; while battery power supply has limited life and is difficult to replace in specific applications

Method used

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  • Energy management system for power station transformer vibration energy collector
  • Energy management system for power station transformer vibration energy collector
  • Energy management system for power station transformer vibration energy collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] exist figure 1 Among them, a bridge rectifier circuit is prepared for the vibration application environment with a frequency of 100 Hz.

[0016] exist figure 2 Among them, the optimized voltage doubler rectifier circuit uses the unidirectional conduction of the diode and the charge and discharge characteristics of the capacitor to realize charge accumulation and high voltage output. The advantages of the voltage doubler rectifier circuit are: ①Even if the AC voltage is low, a higher DC voltage can be obtained by using a rectifier diode and capacitor with a lower withstand voltage, which is convenient for the output of electric energy; ②The output voltage of the voltage doubler rectifier is the same as the input voltage It is several times higher than the bridge rectifier circuit, which greatly improves the output efficiency of the piezoelectric material.

[0017] exist image 3 Among them, the charging characteristics of the battery in the vibration energy harvestin...

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Abstract

The energy management system used for the vibration energy harvester of the power station transformer, P consists of a voltage doubler rectifier circuit, a vibration energy harvester and a power management circuit of the vibration energy harvester. The voltage doubler rectifier circuit utilizes the unidirectional conduction of the diode and the charging and discharging characteristics of the capacitor to realize charge accumulation and high voltage output. The vibration-type energy harvester is inseparable from the power management circuit at the back end. The power management circuit is usually a DC-DC type, and its performance is not only related to the output performance of the piezoelectric energy harvester, but also affects its performance. Applications of backends in electronic systems. The energy management system for power station transformer vibration energy harvester provided by the present invention overcomes the problems of load matching and circuit loss in the interface circuit of the piezoelectric energy harvester, and optimizes the circuit of the piezoelectric energy harvester to fully collect the output of the energy converter. energy, improving energy storage efficiency.

Description

technical field [0001] The present invention relates to an energy management system for a power station transformer vibration energy harvester. Background technique [0002] Among various environmental energies, vibration energy has become a hotspot in the field of IoT node self-supply research due to its wide existence in recent years, and is widely used in industries, agriculture, communications, national defense, aerospace, and medicine. According to different energy conversion principles, vibration power generation technology can be divided into three types: electrostatic, electromagnetic and piezoelectric. Among them, the piezoelectric power generation device has the fastest development, and has the advantages of high electromechanical energy conversion efficiency, easy integration with microelectromechanical systems, low cost, no electromagnetic interference, and simple structure. [0003] At present, local electronic systems in substations mainly use traditional powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02M7/10
CPCH02N2/186H02M7/103
Inventor 李福来
Owner 李福来
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