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Synchronizer with angular position sensor

A technology of synchronous machine and angular position, which is applied in the field of angular position sensor, this type of position sensor, and position sensor, which can solve the problem of torque drop and so on

Inactive Publication Date: 2019-10-11
LOHR ELECTROMECANIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the calibration operation is particularly important because the angular offset between the measured angular position of the rotor and its true position causes a significant drop in torque
For example, a 1° mechanical angle offset will result in about a 5% drop, while a 2° mechanical angle offset will result in a 20% torque drop

Method used

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  • Synchronizer with angular position sensor
  • Synchronizer with angular position sensor
  • Synchronizer with angular position sensor

Examples

Experimental program
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Embodiment Construction

[0046] figure 1 An example of an embodiment of a synchronous machine 1 is shown, comprising installation in a Figure 4 Angular position sensor on stator 2 shown schematically. figure 1 A part of the end 2 a is shown, for example in the form of a flange mechanically integrated with the stator 2 . The synchronous machine 1 also includes a rotor 3 provided with permanent magnets 4 .

[0047] The end 2 a at least partially covers the shaft end 3 a of the rotor 3 without contact. An example of the arrangement between the shaft end 3a and the end 2a is described in more detail in figure 2 middle.

[0048] The stator 2 comprises windings (not shown) designed to be supplied with multiphase current by electronic power devices, also called converters or inverters. Preferably, the latter is supplied with voltage and current.

[0049] The rotor 3 is preferably substantially cylindrical 3b, the inner surface of which is covered with permanent magnets 4 . The rotor 3 is designed to...

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Abstract

The invention relates to a synchronous machine (1) comprising a stator (2) and a rotor (3). The synchronous machine is equipped with at least one angular position sensor module (1a) of the rotor (3) and is characterized in that the stator (2) has windings for feeding multiphase alternating current by electronic power devices current. The rotor (3) includes permanent magnets (4) and is intended to rotate around the stator (2). The angular position sensor (1a) extends away from the rotor (3) and is aligned with the latter at the permanent magnet (4). The angular position sensor (1a) includes at least two magnetic induction measuring sensors (6), and is used to detect the change of the axial magnetic field generated by the magnetic induction generating device in the form of voltage, and the angular position sensor (1a) is also including at least one electronic unit for receiving various voltages supplied by the magnetic induction measuring sensor (6), thereby obtaining the angular position of the rotor (3) in absolute form, and transmitting relevant information to the Electronic power devices.

Description

technical field [0001] The invention relates to the general technical field of angular position sensors and of synchronous machines including magnetic induction generating means, and to a position sensor of this type. [0002] More specifically, the invention relates to a synchronous machine using a sinusoidal electromotive force, including a position sensor for controlling the power supply of said machine. Essentially, the invention applies to the field of synchronous machines powered by polyphase alternating voltage. Background technique [0003] The invention will be described in more detail below, but in a non-limiting manner, by way of example of a device comprising, for example, the use of permanent magnets to generate magnetic induction. [0004] A synchronous machine employing permanent magnets consists of a wound stator and a rotor supporting the permanent magnets. This type of machine is powered and driven by an electric power unit. [0005] Synchronous machines...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/08G01D5/20
CPCG01D5/2013H02K29/08H02K11/215H02K11/25H02K11/33H02K1/26H02K1/27H02P27/08
Inventor 皮埃尔·杜马斯
Owner LOHR ELECTROMECANIQUE