A highly integrated flywheel energy storage device in a horizontal self-pumping vacuum chamber
A highly integrated flywheel energy storage technology, applied in the field of flywheel energy storage, can solve the problems of complex control, low integration, and low energy storage density
Active Publication Date: 2021-04-20
JIANGSU UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to overcome the shortcomings of traditional flywheel energy storage devices such as low integration, complicated control and low energy storage density, and propose a flywheel energy storage device with a three-degree-of-freedom magnetic bearing and a single-winding outer rotor bearingless motor. The structure and control method of the flywheel energy storage device are simplified, while the integration and energy storage density of the flywheel energy storage system are improved, and the cost and loss are reduced
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with examples. It should be understood that the specific implementation described here is only suitable for explaining the present invention, and is not intended to limit the present invention.
[0036] like figure 1 As shown, the exterior of the energy storage device of the present invention is a cavity formed by the casing 1. The casing is composed of an upper end cover 11, a casing body 12 and a lower end cover 13. The upper end of the casing body 12 is tightly and fixedly connected with the upper end cover 11. The casing body 12 The lower end is tightly and fixedly connected with the lower end cover 13 . A central hole 111 is opened in the center of the upper end cover 11, through which the molecular pump sucks the air in the cavity to form a vacuum environment in the cavity. The shell 1 ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-integrated flywheel energy storage device for a horizontal self-pumping vacuum chamber. A vacuum chamber is formed by a casing. The upper end of the vacuum chamber is a three-degree-of-freedom magnetic bearing fixedly connected to the casing through a bracket, which includes Bearings, axial magnetic bearings and permanent magnets; the lower end of the three-degree-of-freedom magnetic bearing is the flywheel rotor, and the single-winding outer rotor bearingless motor is located at the lower end of the flywheel rotor, and its rotor is embedded in the annular groove on the lower surface of the flywheel rotor. The bracket is fixed at the lower end of the shell, so the five-degree-of-freedom balance of the flywheel rotor is realized through the three-degree-of-freedom magnetic bearing and the single-winding outer rotor bearingless motor, which simplifies the control method and improves the integration; the upper end of the shell is equipped with a horizontal composite vacuum pump , The vacuum pump is a double-rotor structure with left and right mirror symmetry, which improves the vacuum degree and pumping speed.
Description
technical field [0001] The invention relates to the technical field of flywheel energy storage, and specifically refers to a flywheel energy storage device in which a three-degree-of-freedom magnetic bearing cooperates with a single-winding outer rotor bearingless motor to achieve five-degree-of-freedom balance, and adopts a horizontal vacuum pump to self-evacuate. Background technique [0002] With the rapid development of the global economy, the consumption of natural resources is increasing day by day. Human beings are facing the major problems of depletion of natural resources and environmental pollution. Utilize existing energy efficiently and actively develop advanced energy storage technologies. The traditional chemical storage battery has high energy storage density and low price, and is widely used, but it needs regular maintenance, short life, large energy loss, long charging time, and brings pollution to the environment. Because the flywheel energy storage system...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02H02K7/09
CPCH02K7/025H02K7/09Y02E60/16
Inventor 张维煜杨启富程烨东朱熀秋
Owner JIANGSU UNIV