Flywheel energy storing device

A flywheel energy storage and flywheel technology, which is applied in hybrid vehicles, electric energy storage, and aerospace fields, can solve the problems of low investment scale and failure to achieve replacement, and achieve the effects of increasing energy storage capacity, eliminating losses, and compact structure

Active Publication Date: 2015-11-04
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with developed countries, my country's current technical level and investment scale are relatively low, and research on flywheel batteries is still in its infancy.
In particular, how to develop a flywheel battery that can be applied to aerospace has not been involved in China.
Although the research on foreign flywheel batter

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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descrip...

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Abstract

The invention discloses a flywheel energy storing device. The device includes a vacuum container arranged on the outer layer. A rotary shaft is arranged in the center of the vacuum container. A radial-axial permanent magnetic bearing is nested in the upper end of the rotary shaft. The lower end of the rotary shaft is sleeved with a flywheel, a single-winding outer rotor magnetic suspension switch reluctance motor, and a permanent magnetic bias radial-axial magnetic bearing successively from top down. The rotary shaft penetrates through the center of the flywheel and is connected with the flywheel. The flywheel is nested in an outer rotor of the single-winding outer rotor magnetic suspension switch reluctance motor. According to the invention, by combining that the single-winding outer rotor magnetic suspension switch reluctance motor can drive the flywheel directly and has a high-speed suspension function with that the radial-axial magnetic bearing and a hybrid magnetic shaft have characteristics of controllable suspension in forced uninstallation, five degree of freedom and high-reliability suspension of the flywheel are realized. Besides, operation speed of the flywheel is increased and system power consumption and size are reduced.

Description

technical field [0001] The invention belongs to the technical field of electric energy storage, and in particular relates to a novel flywheel energy storage, which is especially suitable for uninterruptible power supply, new energy power generation, distributed power supply system, hybrid vehicle, aerospace and other fields. Background technique [0002] With the development of new energy power generation, distributed power systems, hybrid vehicles, aerospace and other fields, energy storage technology has become a worldwide research topic. Among many energy storage technologies, flywheel batteries are highly valued at home and abroad for their advantages of high power, high efficiency, long life, high energy storage density, and cleanliness. As a new type of energy storage equipment integrating mechanical, control, and electronic technologies, flywheel batteries still have many technical problems that restrict their engineering applications, mainly in the performance of sus...

Claims

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Application Information

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IPC IPC(8): H02K7/02H02K7/09H02N15/00F16C32/04
CPCY02E60/16
Inventor 孙玉坤刘良田
Owner JIANGSU UNIV
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