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Method for connecting an inverter to a reluctance machine, control device and drive assembly

A reluctance motor and control device technology, which is applied in the direction of AC motor control, electromechanical transmission control, motor control, etc., can solve the problem of not configuring the sensor of speed and/or commutation position, etc., and achieve the effect of simple cost

Active Publication Date: 2016-05-11
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such reluctance motors are in most cases not equipped with sensors capable of measuring rotational speed and / or commutation position for cost reasons

Method used

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  • Method for connecting an inverter to a reluctance machine, control device and drive assembly
  • Method for connecting an inverter to a reluctance machine, control device and drive assembly
  • Method for connecting an inverter to a reluctance machine, control device and drive assembly

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Embodiment Construction

[0032] The current converter 6 should now be connected to the rotating reluctance machine 2 with the correct speed and phase. The reluctance motor 2 is designed in particular as a synchronous reluctance motor 2 without a damper cage. The reluctance machine 2 has a stator (not shown here) with a corresponding stator winding 11 . Furthermore, the reluctance machine 2 has a rotor, not shown here, which has a laminated rotor core which is designed to be magnetically anisotropic. The rotor lamination stack can be formed from laminated cores and have corresponding flux locks, ie air-filled regions or openings, whereby a magnetically anisotropic design is achieved.

[0033] figure 1 The space vector diagram of the reluctance machine 2 is shown. In this space vector diagram, the physical variables of the reluctance machine 2 are shown as vectors in the complex plane. exist figure 1 The stator coordinate system is shown in , which has axis α and axis β. Axis α shows the real part...

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Abstract

The invention relates to a method for connecting an inverter (6) to a reluctance machine (2), a control device and a drive assembly. The reluctance machine (2) is provided with a stator and a rotor. The stator is provided with a stator winding (11), and the rotor is provided with a rotor plate assembly having magnetic anisotropy. The method, therefore includes the following steps: inputting a direct current (I) into the stator winding (11); determining a voltage applied to the stator winding (11) in which the voltage is induced inside the stator winding (11) through variations of a magnetic flux ([phi]) caused by rotation of the rotor, and the rotor frequency (f) and / or rotor angle ([o]) of the rotor is determined based on the determined induced voltage (U) by means of the control device (3).

Description

technical field [0001] The invention relates to a method for connecting a converter to a rotating reluctance electric machine. Furthermore, the invention relates to a control device for a converter of a reluctance machine. Finally, the invention relates to a drive device. Background technique [0002] Of current interest are reluctance machines, especially synchronous reluctance machines without a damping cage. Synchronous reluctance motors of this type without a damping cage, as long as they are operated field-directed at the frequency converter, offer very high dynamics and at the same time very good efficiency especially in the partial load range . Unlike asynchronous motors, there are no rotor time constants that "disturb" the dynamic flux build-up, so synchronous reluctance motors offer the advantage of excellent energy efficiency in the partial load region when the flux drops, but at the same time due to High load moments require rapid magnetization. A reluctance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/24H02P21/18H02P21/14H02P25/092H02P25/024
CPCH02P25/024H02P21/14H02P2207/05H02P1/465H02P6/182H02P6/185H02P25/08
Inventor 蒂洛·威格尔
Owner SIEMENS AG
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