Energy storage system and control method thereof

A technology of energy storage system and energy storage device, which can be applied to systems that store electrical energy, electric vehicles, electrical components, etc., can solve problems such as low electrical energy conversion efficiency, achieve no high-frequency electromagnetic radiation, improve electrical energy conversion efficiency, and adjust output. The effect of voltage/power convenience

Inactive Publication Date: 2018-11-30
刘粤荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A regressive idea is to use a motor to drive a generator to replace the high-frequency switching circuit, but the power conversion efficiency of this conventional technology is low. For this reason, the industry has proposed a variety of ideas for auxiliary mechanical energy devices, such as in the shaft of the generator Add flywheel

Method used

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  • Energy storage system and control method thereof
  • Energy storage system and control method thereof
  • Energy storage system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057]An energy storage system including an energy storage device and a charging system. The energy storage device uses a lead-acid battery pack with a nominal 200V10KAh internal pole group as a bipolar structure. The charging system includes an exciter 1, an electric device 2, and a magnetic moment wheel 3 , generator 4 and rectifier; generator 4 is a conventional rotary generator, and its power output is connected to the power input of the rectifier; The power supply end of the energy device is connected; the center of the magnetic moment wheel 3 has a hole, and the hole passes through the rotating shaft 4a of the generator 4 and is mechanically connected to it, so that the rotating shaft 3a of the magnetic moment wheel 3 coincides with the axis of the rotating shaft 4a of the generator 4 Installation effect; the outer edge of the rim 3b of the magnetic moment wheel 3 is provided with 4 rotating magnets 3c, the S pole faces the rotating shaft 3a, and the N pole faces the oute...

Embodiment 2

[0062] Carry out technical improvement on the basis of embodiment 1, two magnetic moment wheels 3 are set at the rotating shaft 4a of generator 4, and the rotating shaft 3a of two magnetic moment wheels 3 is installed on the rotating shaft 4a of generator 4 respectively; Two magnetic moment wheels 3 The distribution of the rotating magnets 3c on the rim 3b is the same, so that it can be regarded as a magnetic moment wheel 3 with respect to the longitudinal reference of the rotating shaft 4a of the generator 4; at the same time, two exciters 1 are respectively arranged corresponding to the two magnetic moment wheels 3, and the two Each exciter 1 is respectively fixedly installed on the reciprocating electric device; in the electric device 2, on the bracket corresponding to the rim 3b close to the two magnetic moment wheels 3, two position sensors are fixedly installed respectively (in order to improve the reliability of the sensor signal source sex). During installation, the N-...

Embodiment 3

[0065] The rotating shaft 3a of the magnetic moment wheel 3 of embodiment 1 is arranged coaxially with the rotating shaft 4a of the generator 4. In this embodiment, the shaft of the magnetic moment wheel 3 is set on a speed change mechanism, and the speed change mechanism is fixedly set on the generator. On the rotating shaft 4a of 4, the axle center of magnetic moment wheel 3, the axle center of speed change mechanical device, the axle center of generator 4 rotating shaft 4a coincide. In addition, the disk-shaped magnetic moment wheel 3 is composed of two rings of different materials, wherein the material of the ring 3b2 is ABS, and the material of the ring 3b1 is a non-magnetic alloy.

[0066] The configuration of other components and the working logic control method of this embodiment are the same as those described in Embodiment 1.

[0067] The rotation speed of the generator 4 in this embodiment is not limited to be the same as the rotation speed of the magnetic moment wh...

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Abstract

The invention discloses an energy storage system and a control method thereof. The energy storage system comprises an energy storage device and a charging system. The energy storage device comprises asecondary battery and / or a mechanical energy storage device driven by electric power; the charging system comprises an excitation body, an electric device, a magnetic moment wheel, a generator and arectifying device. The electric device is fixedly connected with the excitation body and is arranged adjacent to the magnetic moment wheel, and the power control end of the electric device is connected with an external power supply device. At least four rotating magnets are arranged at intervals around the rim, with the same N / S polarity, of the magnetic moment wheel, and the magnetic moment wheelis in transmission with the generator. The relative magnetic polarity of the excitation body and the rotating magnet are the same. The rectifying device is connected with the generator and the energystorage device. When the magnetic moment wheel rotates, the electric device controls the excitation body to locate at the minimum gap or be away from the magnetic moment wheel according to the relative rotation position of the rotating magnet, so as to enable the magnetic moment wheel to drive the generator to rotate and generate electric power through like poles repel effect and to charge the energy storage device through the rectifying device, thereby achieving the energy storage.

Description

technical field [0001] The invention relates to the field of application design of energy storage systems, in particular to an energy storage system designed based on the mutual repulsion between permanent magnets with the same magnetic poles and a control method thereof. Background technique [0002] Energy storage systems generally refer to devices used to store electrical energy, usually referring to chemical power sources and mechanical energy storage devices; chemical power sources are generally divided into primary batteries and secondary batteries, and primary batteries are disposable batteries, including but not limited to zinc-manganese batteries, Aluminum-air film batteries; secondary batteries are batteries that can be repeatedly charged and discharged, including but not limited to lead-acid batteries, lithium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and zinc-air secondary batteries. [0003] The early application of energy storage devices...

Claims

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Application Information

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IPC IPC(8): H02J15/00H02J7/14
CPCH02J15/00H02J7/14
Inventor 刘粤荣刘曦
Owner 刘粤荣
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