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Double-shaft compensation air-cored pulse generator and pulse molding system and pulse molding method of double-shaft compensation air-cored pulse generator

A dual-axis compensation and pulse forming technology, applied in electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., to achieve miniaturization, increase energy density and power density, and resolve conflicts

Inactive Publication Date: 2012-08-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a dual-axis compensation air-core pulse generator and its pulse shaping in view of the contradiction between the ideal pulse current waveform and the self-excitation efficiency required by the existing passive compensation air-core pulse generator output railgun method

Method used

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  • Double-shaft compensation air-cored pulse generator and pulse molding system and pulse molding method of double-shaft compensation air-cored pulse generator
  • Double-shaft compensation air-cored pulse generator and pulse molding system and pulse molding method of double-shaft compensation air-cored pulse generator
  • Double-shaft compensation air-cored pulse generator and pulse molding system and pulse molding method of double-shaft compensation air-cored pulse generator

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specific Embodiment approach 1

[0018] Specific implementation mode one. The following combination figure 2 Describe this embodiment, a dual-axis compensation air-core pulse generator, which includes an air-core rotor and an air-core stator, and the air-core rotor includes an excitation winding 3 and a quadrature-axis compensation winding 2, which is characterized in that: the quadrature-axis compensation winding 2 has four coils, and each coil is self-short-circuited. The axes of the two adjacent coils in the quadrature-axis compensation winding 2 and the excitation winding 3 are 45° apart in space, and the two adjacent coils The electrical angles of the two coils are arranged orthogonally by 90°.

[0019] The motor has a four-pole symmetrical structure. Under each pole, the axis 21 of the exciting winding 3 and the axis 22 of the quadrature axis compensation winding 2 have a mechanical angle difference of 45 degrees in space, and a difference of 90 degrees in electrical angle, so that the quadrature axis ...

specific Embodiment approach 2

[0021] Specific implementation mode two. The following combination figure 1 and figure 2 Describe this embodiment, this embodiment is a further description of Embodiment 1, a dual-axis compensation air-core pulse generator, the motor adopts a four-pole structure, and the air-core stator is composed of an armature winding 1, an air-core The stator yoke 9 and the casing 5 are composed, and the inside of the hollow stator is a cylindrical cavity, and the hollow rotor is arranged in the cylindrical cavity;

[0022] The outer wall of the hollow stator yoke 9 is fixed on the inner wall of the casing 5; the armature winding 1 is fixed on the inner wall of the hollow stator yoke 9;

[0023] The air-core rotor includes the air-core rotor yoke 12 , the excitation winding 3 , the excitation winding bandage 11 , the quadrature axis compensation winding 2 and the compensation winding bandage 10 from the inside to the outside.

[0024] The motor described in this embodiment is a selectiv...

specific Embodiment approach 3

[0026] Specific implementation mode three. The following combination figure 1 and figure 2 This embodiment is described. This embodiment is a further description of the second embodiment. The armature winding 1 has four coils, and the four coils are connected in parallel.

[0027] The design speed and air gap flux density of the motor are relatively high, so the output voltage can easily meet the load demand. In order to reduce the internal inductance of the motor and output a larger current pulse, the armature winding 1 of this embodiment adopts a parallel connection method

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Abstract

The invention provides a double-shaft compensation air-cored pulse generator and a pulse molding system and a pulse molding method of the double-shaft compensation air-cored pulse generator, relates to a pulse generator and a pulse molding method of the pulse generator, and belongs to the field of electrical machines. The aim provided by the invention is to solve the problem that an ideal pulse current wave shape required by the existing selectable passive compensation air-cored pulse generator for outputting a railgun contradicts self-excitation efficiency. The double-shaft compensation air-cored pulse generator comprises a compensation winding and a magnet winding which are in orthogonal distribution and respectively provide quadrature axis compensation and straight axis compensation. The pulse molding system of the double-shaft compensation air-cored pulse generator comprises a main discharge thyristor, a rectifier, a fly-wheel diode, an excitation capacitor and an excitation thyristor. The pulse molding method of the double-shaft compensation air-cored pulse generator comprises the following steps: a prime motor drags a rotor to reach rated speed, the rotor is separated from a generator the main discharge thyristor is closed after excitation current reaches rated vale through positive feedback self-excitation process; an armature winding discharges to load; and the quadrature axis compensation winding short circuited with the rotor and the freewheeling excitation winding induce current to compensate so as to output required pulse current waveform. According to the invention, the miniaturization of a generator pulse power supply can be realized.

Description

technical field [0001] The invention relates to a pulse generator and a pulse forming method thereof, belonging to the field of motors. Background technique [0002] The high-power pulse power supply is an important part of the electromagnetic launch system, which provides the electromagnetic gun with the energy and pulse power required for launch. In 1978, W.F. Weldon and others at the Electromechanical Research Center of the University of Texas in the United States invented the compensated pulse generator, and obtained a US patent in 1980, see Weldon et al. Compensated Pulsed Alternator, U.S. Patent 4200831 Apr.29, 1980. This kind of motor uses the compensation winding or compensation cylinder placed between the armature and the excitation coil to compensate the armature winding during discharge, which effectively reduces the internal inductance of the motor, so that it can output extremely large current pulses instantaneously. Considered as an ideal pulse power source. ...

Claims

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Application Information

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IPC IPC(8): H02K39/00H02K1/12H02K1/22H02K3/28H02K1/28
Inventor 赵伟铎崔淑梅吴绍朋王少飞
Owner HARBIN INST OF TECH
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