Integrated starter and generator double-winding permanent magnet motor for micro turbine

A technology of micro gas turbines and permanent magnet motors, applied to synchronous motors with stationary armatures and rotating magnets, windings, electromechanical devices, etc., can solve problems such as long downtime, high starting voltage requirements, and low efficiency, and achieve The effect of reducing high-order harmonic loss, reducing high-order harmonic magnetic potential, and small excitation current

Pending Publication Date: 2019-12-20
江苏恒军动力科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the inspiration integrated motor used in the micro gas turbine is a single-winding motor. It is started to the ignition speed through complex power electronic control, and then the gas is replaced to drive power generation. The start-up power supply of the high-voltage platform supplies power to it, resulting in problems such as high cost of start-up power supply and large volume and weight, or it must be connected to the grid, making the micro gas turbine inconvenient to move
At the same time, when stopping and braking, the energy is consumed on the power resistor, which leads to long stopping time and low efficiency

Method used

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  • Integrated starter and generator double-winding permanent magnet motor for micro turbine
  • Integrated starter and generator double-winding permanent magnet motor for micro turbine
  • Integrated starter and generator double-winding permanent magnet motor for micro turbine

Examples

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Embodiment 1

[0020] like Figure 1 to Figure 3 As shown, a kind of inspired integrated double-winding permanent magnet motor used by a micro gas turbine is characterized in that it includes: the stator main winding 3 embedded in the stator slot of the motor is isolated from the stator auxiliary winding 4, and the stator auxiliary winding 4 is also embedded in the stator slot of the motor, the spatial distribution and current time phase of the stator main winding 3 and the stator auxiliary winding 4 are different; the stator main winding 3 or the stator auxiliary winding 4 is connected in series with the capacitor, so Both the stator main winding 3 and the stator secondary winding 4 are three-phase windings, and the three-phase windings include a U-phase coil 7, a V-phase coil 8, and a W-phase coil 9, wherein the U-phase coil 7 and the V-phase coil 8 , W-phase coils 9 are all wound in the stator slot of the motor; the double-winding permanent magnet motor also includes a permanent magnet 3,...

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Abstract

The invention discloses an integrated starter and generator double-winding permanent magnet motor for a micro turbine, which comprises a stator main winding embedded in a motor stator groove and mutually isolated from a stator auxiliary winding. The stator auxiliary winding is also embedded in a motor stator groove. The space distribution and the current time phase of the stator main winding and the stator auxiliary winding are different. The stator main winding or the stator auxiliary winding is connected with a capacitor in series. A simple and reliable inverter control circuit topology canbe matched, a starting power supply and a control system are lowly required, and the downtime can be greatly shortened.

Description

technical field [0001] The invention relates to an inspiration-integrated double-winding permanent magnet motor used in a micro gas turbine. Background technique [0002] Microturbine (Microturbine or Micro-turbines) is a newly developed small-scale heat engine with a stand-alone power range of 25-300kW. The basic technical feature is the use of radial impeller machinery (central turbine and centrifugal compressor) reheat cycle. It is believed that micro gas turbine power generation technology may set off a technological innovation wave of "small power supply decentralization", thus becoming the mainstream of energy technology in the 21st century. [0003] At present, the inspiration integrated motor used in the micro gas turbine is a single-winding motor. It is started to the ignition speed through complex power electronic control, and then the gas is replaced to drive power generation. The starting power of the high-voltage platform supplies power to it, which causes pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/00H02K3/12H02K21/14
CPCH02K3/00H02K3/12H02K21/14
Inventor 姜鑫平
Owner 江苏恒军动力科技有限公司
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