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Modular flywheel pulse generator system

A generator and modularization technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of low power density, large volume and weight, low energy density, etc., and achieve high power density and energy density, low electromagnetic interference , high-strength effect

Active Publication Date: 2022-03-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of low power density, low energy density, and large volume weight of the system caused by the long shafting and low speed of the existing flywheel pulse generator set; and the problems of low reliability and high cost, and provide A Modular Flywheel Impulse Generator System

Method used

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  • Modular flywheel pulse generator system
  • Modular flywheel pulse generator system
  • Modular flywheel pulse generator system

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specific Embodiment approach 1

[0038] Specific implementation mode one: the following combination Figure 2 ~ Figure 11 To illustrate this embodiment, the modular flywheel pulse generator system described in this embodiment includes an input inverter, an axial magnetic field structure multi-air-gap embedded permanent magnet rotor synchronous motor, an output rectifier, and an excitation current adjustment unit;

[0039]Motor status: Axial magnetic field structure multi-air-gap embedded permanent magnet rotor synchronous motor absorbs energy from the grid through the input inverter, converts electrical energy into mechanical energy and stores it;

[0040] Generator status: Axial magnetic field structure multi-air-gap embedded permanent magnet rotor synchronous motor converts mechanical energy into electrical energy, and supplies power to the load through the output rectifier;

[0041] The excitation current regulating unit is used to control the air-gap magnetic field of the synchronous motor in the generato...

Embodiment 1

[0064] Example 1: see figure 2 and image 3 As shown, the synchronous motor is mainly composed of 1 stator, 2 rotors and 2 air gaps. The stator casing frame is set outside the stator, the stator and two rotors are arranged coaxially and alternately along the axial direction, and the two rotors are set outside the rotating shaft and connected together through the rotating shaft. Each stator consists of 3 stator modules. The three stator modules of each stator are arranged and fixed in the casing frame sequentially along the circumferential direction. Each stator module is mainly composed of a stator base plate and three stator coils. The three stator coils are evenly arranged and fixed on the stator base plate along the circumferential direction.

[0065] Each rotor at both axial ends is mainly composed of a rotor base plate and permanent magnets. The rotor base plate is disc-shaped and made of magnetic material. 6 sets of axial blind holes are opened on the air gap side...

Embodiment 2

[0066] Example 2: see Figure 6 and Figure 7 As shown, the synchronous motor is mainly composed of 2 stator units, 3 rotor units and 4 air gaps. The stator casing frame is set outside the stator unit, 2 stator units and 3 rotor units are arranged coaxially and alternately along the axial direction, and the 3 rotor units are set outside the rotating shaft and connected together through the rotating shaft. Each stator unit consists of 3 stator modules. The three stator modules of each stator unit are arranged and fixed in the casing frame in sequence along the circumferential direction. Each stator module is mainly composed of a stator base plate and three stator coils. The three stator coils are evenly arranged and fixed on the stator base plate along the circumferential direction.

[0067] Each rotor at both axial ends is mainly composed of a rotor base plate and permanent magnets. The rotor base plate is disc-shaped and made of magnetic material. 6 sets of axial blind ...

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Abstract

A modular flywheel pulse generator system belongs to the technical field of motors and power electronics. The present invention solves the problems of low power density, low energy density, and large volume and weight caused by long shafting and low speed of the existing flywheel pulse generator set; And low reliability, high cost problems. The invention includes an input inverter, an axial magnetic field structure multi-air-gap embedded permanent magnet rotor synchronous motor, an output rectifier and an excitation current adjustment unit; the state of the motor: the axial magnetic field structure multi-air-gap embedded permanent magnet rotor synchronous motor passes the input The inverter absorbs energy from the power grid, converts electrical energy into mechanical energy and stores it; generator status: the axial magnetic field structure multi-air gap embedded permanent magnet rotor synchronous motor converts mechanical energy into electrical energy, and supplies power to the load through the output rectifier; excitation current The regulating unit is used to control the air-gap magnetic field of the synchronous motor in the generator state, so as to ensure that the output voltage of the synchronous motor remains constant under the state of load and speed changes.

Description

technical field [0001] The invention belongs to the technical field of motors and power electronics, and relates to a flywheel generator structure. Background technique [0002] The flywheel pulse generator is a flywheel energy storage device that uses the large inertia of the shaft system to store energy, and coaxial motor / generator to realize electromechanical energy conversion. There are two types of flywheel energy storage devices currently in use or under development: the first type is that the power levels of energy storage and energy release are equivalent, and one motor can be used to alternately realize the functions of electric power generation and power generation. The small and medium-capacity magnetic levitation flywheel energy storage system is for this The first type has the characteristics of compact structure and high efficiency, and is generally used as a flywheel battery; the second type is that the energy storage power is more than an order of magnitude s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02H02J3/30
CPCH02K7/025H02J3/30Y02E60/16
Inventor 寇宝泉张浩泉张艳清
Owner HARBIN INST OF TECH
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