US 10,381,962 B2 · Method, apparatus and system for operating a rotating electric machine

Abstract

The invention provides a method, an apparatus and a system 1 for operating a rotating electric machine. The method has the following steps: defining (S01) a rotor position angle reference value of a rotor of the rotating electric machine (REM); determining (S02) a first rotor position angle measured value of the rotor during operation in the case of essentially a first speed of the rotor by means of a rotor position detection device (REE) of the rotating electric machine (REM); determining (S03) a second rotor position angle measured value of the rotor during operation in the case of essentially a second speed of the rotor by means of the rotor position detection device (REE) of the rotating electric machine (REM), wherein the second speed of the rotor differs from the first speed of the rotor; defining (S04) a first angular offset as the difference between the first rotor position angle measured value and the rotor position angle reference value; defining (S05) a second angular offset as the difference between the second rotor position angle measured value and the rotor position angle reference value; and calculating (S06) a signal delay of the rotor position detection device (REE) on the basis of the defined first angular offset, the defined second angular offset, the first speed of the rotor and the second speed of the rotor.

Claims15

Dependent claims

A method for operating a rotating electric machine (REM) the method comprising:

defining (S01) a rotor position angle reference value of a rotor of the rotating electric machine (REM);
determining (S02) a first rotor position angle measured value of the rotor during operation in the case of essentially a first rotational speed of the rotor by a rotor position detection device (REE) of the rotating electric machine (REM);
determining (S03) a second rotor position angle measured value of the rotor during operation in the case of essentially a second rotational speed of the rotor by the rotor position detection device (REE) of the rotating electric machine (REM), wherein the second rotational speed of the rotor differs from the first rotational speed of the rotor;
defining (S04), by a computing device (CAL), a first angular offset as the difference between the first rotor position angle measured value and the rotor position angle reference value;
defining (S05), by the computing device (CAL), a second angular offset as the difference between the second rotor position angle measured value and the rotor position angle reference value;
calculating, by the computing device (CAL), (S06) a signal delay of the rotor position detection device (REE) on the basis of the defined first angular offset, the defined second angular offset, the first rotational speed of the rotor, and the second rotational speed of the rotor;
and
operating the rotating electric machine (REM) taking into account the calculated signal delay of the rotor position detection device (REE).

5 more elements

An apparatus for operating a rotating electric machine (REM), comprising:

a rotor position detection device (REE) which is configured to determine (S02) a first rotor position angle measured value during operation in the case of essentially a first rotational speed of a rotor of the rotating electric machine (REM) and to determine (S03) a second rotor position angle measured value during operation in the case of essentially a second rotational speed of the rotor of the rotating electric machine (REM);
and
a computing device (CAL) which is designed to:
define (S04) a first angular offset as the difference between the first rotor position angle measured value and a rotor position angle reference value,
define (S05) a second angular offset as the difference between the second rotor position angle measured value and the rotor position angle reference value and
calculate (S06) a signal delay of the rotor position detection device (REE) on the basis of the defined first angular offset, the defined second angular offset, the first rotational speed of the rotor and the second rotational speed of the rotor.

3 more elements

Dependencies are inferred from the claim text.

Method, apparatus and system for operating a rotating electric machine

Life of this patent

Method, apparatus and system for operating a rotating electric machine

Life of this patent

Abstract

Claims15