Rotor rotating speed/position detecting method of aero-switch reluctance starting/power generator

Abstract

The invention discloses a rotor rotating speed / position detecting method of an aero-switch reluctance starting / power generator. Through coaxially mounting a switched reluctance motor of which the number of teeth is same with that of one selected from a stator and a rotor on the aero-switch reluctance starting / power generator as a position detector, namely a switched reluctance type position detector is coaxially mounted. The position detector realizes estimation for per-unit value of each phase of inductance, thereby acquiring a rotor position signal by means of a correspondence between a phase inductance and a rotor position angle, and supplying accurate and reliable position and rotating speed information for the aero-switch reluctance starting / power generator. The rotor rotating speed / position detecting method of the aero-switch reluctance starting / power generator is suitable for adverse operation environments of high-temperature operation environment, high-speed operation environment, smeary environment, etc. Furthermore the rotor rotating speed / position detecting method of the aero-switch reluctance starting / power generator has advantages of high detecting precision, high reliability, simple structure, high firmness, high stability and relatively low cost of a detecting system, high sensitivity and high efficiency in detecting an output response, and high suitability for position detection in high-temperature and high-speed operation of the aero-switch reluctance starting / power generator.

Description

technical field [0001] The invention relates to a detection method, in particular to a rotor speed / position detection method of an aviation switch reluctance starter / generator, belonging to the technical field of motor signal detection. Background technique [0002] Speed ​​detection is a necessary link to realize the closed-loop control of the speed of the rotating electrical machine. For the control of modern speed-regulating motors such as switched reluctance motors and brushless DC motors, it is not only necessary to detect real-time speed information, but also to detect real-time rotor position information. [0003] For the aviation switched reluctance starter / generator system, real-time and accurate acquisition of rotor speed or position information is a necessary prerequisite to ensure reliable operation and high-performance control of the motor. The position detection of the motor generally detects the rotor position signal by installing a position sensor in the mot...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a detection system that can adapt to harsh operating environments such as high temperature, high speed and oil pollution, has extremely high detection accuracy and reliability, has a simple structure, is strong and safe, and has low cost, and has a sensitive and efficient detection output response. The rotor speed / position detection method of the aviation switch reluctance starter / generator can be used for the normal position detection of the aviation switch reluctance starter / generator at high temperature and high speed, and solve the problem that the existing sensors cannot adapt to harsh working conditions such as ultra-high temperature, and also It can be applied to the rotor position and speed detection of other rotating electrical machines such as brushless DC motors, etc., which has great industrial application value

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