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An electrical motor system and method of operating the electrical motor system

一种开关磁阻电机、电能的技术，应用在控制系统、交流电动机控制、用于单相电流的同步电动机等方向，能够解决昂贵机械、复杂等问题

Active Publication Date: 2017-05-24
ARM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such configurations are expensive and mechanically complex

Method used

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  • An electrical motor system and method of operating the electrical motor system
  • An electrical motor system and method of operating the electrical motor system
  • An electrical motor system and method of operating the electrical motor system

Examples

Experimental program
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Embodiment Construction

[0048] figure 1 A switched reluctance motor system 10 is schematically shown in one embodiment. The electric machine includes a rotor portion 12 configured to rotate within two stator portions 14 and 16 . The rotor section is configured with sixteen rotor teeth forming a longitudinal ridge extending radially outward and through the two stator sections 14 and 16 along the length of the rotor section. Each stator section is configured with twenty-four stator teeth forming longitudinal ridges extending inwardly and also penetrating along the length of each stator section. Each stator tooth is wound with a coil comprising a large number of turns - in this example there are approximately two hundred turns. exist figure 1 In the embodiment shown, there are no coils on the rotor teeth, as the magnetic fields generated by energizing the stator tooth coils cause the motor to rotate through the action of those fields on the rotor.

[0049] The electric machine system 10 also include...

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PUM

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Abstract

An electrical motor system comprises a switched reluctance electrical motor comprising a rotor section and a stator section, the rotor section comprising a plurality of rotor teeth and the stator section comprising a plurality of stator teeth, the stator teeth wound with respective coils. Coil driver circuitry is coupled to the coils of the stator teeth and controls an independent phase of electrical power to each coil of the plurality of stator teeth. The coils of the stator teeth each have an inductance which absorbs electrical energy provided to that coil by the coil driver circuitry and subsequently releases at least a portion of the electrical energy back to the coil driver circuitry when that coil is not being actively driven by the coil driver circuitry. The coil driver circuitry comprises an electrical energy store configured to store the portion of the electrical energy released back from the inductance of each coil and the electrical energy provided to each coil of the stator teeth by the coil driver circuitry is augmented by the electrical energy stored in the electrical energy store.

Description

technical field [0001] The present disclosure relates to electric machine systems. More specifically, the present disclosure relates to electric machine systems including switched reluctance machines. Background technique [0002] In electric machines having coil windings as part of the stator of the electric machine, for example in switched reluctance electric machines, the electric machine is typically powered by a three-phase power supply and an AC waveform is applied to the coil windings to control the operation of the electric machine. Some motors have been created with more phases, but an important factor in creating such multiphase motors is the cost of the phase driver electronics. In conventional motors, a pulse width modulated (PWM) voltage controller (usually arranged with an H-bridge topology to drive the motor coils bidirectionally) is coupled to a large power supply, and the large voltage and current required to drive the motor coils can increase significantly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/14H02K19/10H02K11/22H02P25/092H02K3/18H02K16/00
CPCH02K3/18H02K11/22H02K16/00H02K19/103H02K2213/03H02K2213/12H02P6/14H02P25/092
Inventor 大卫·派特罗莫纳克
Owner ARM LTD