AU2015360193B2 - Trouble-shooting and fault-locating method for four position sensors of four-phase switched reluctance motor - Google Patents

Trouble-shooting and fault-locating method for four position sensors of four-phase switched reluctance motor Download PDF

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AU2015360193B2
AU2015360193B2 AU2015360193A AU2015360193A AU2015360193B2 AU 2015360193 B2 AU2015360193 B2 AU 2015360193B2 AU 2015360193 A AU2015360193 A AU 2015360193A AU 2015360193 A AU2015360193 A AU 2015360193A AU 2015360193 B2 AU2015360193 B2 AU 2015360193B2
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position sensor
output signal
rising
fault
detected
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Hao Chen
He Cheng
Guoqiang HAN
Qianlong WANG
Qing Wang
Xing Wang
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Electric Motors In General (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

A trouble-shooting and fault-locating method for four position sensors of a four-phase switched reluctance motor, the method comprising: according to a sequence of two adjacent rising edge pulses of output signals of four position sensors, determining whether a position sensor fails; setting a trouble-shooting buffer zone to avoid a misdiagnosis; and identifying the output signal of the position sensor of the rising edge pulse source so as to locate the fault of the position sensor. The present invention is suitable for trouble-shooting and fault-locating for the four position sensors of a rotary or linear switched reluctance motor having four and multiple-of-four phases and a plurality of topology structures; the diagnosis and fault-locating result is not affected by speed changes such as constant speed, acceleration and deceleration of the motor; and the diagnosing method is reliable and practical and has extensive engineering application value.

Description

The present invention is suitable for trouble-shooting and fault-locating for the four position sensors of a rotary or linear switched reluctance motor having four and multiple-of-four phases and a plurality of topology structures; the diagnosis and fault-locating result is not affected by speed changes such as constant speed, acceleration and deceleration of the motor; and the diagnosing method is reliable and practical and has ex tensive engineering application value.
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2015360193 10 Jan 2018
Description
TROUBLE-SHOOTING AND FAULT-LOCATING METHOD FOR FOUR POSITION SENSORS OF FOUR-PHASE SWITCHED RELUCTANCE MOTOR
Technical Field
The present invention relates to a fault diagnosis and fault locating method for position sensors of a four-phase switched reluctance motor, in particular to fault diagnosis and fault locating of four position sensors of rotary or linear switched reluctance motors with four phases or a multiple of four phases in different topological structures.
Background Art
In rotary or linear four-phase switched reluctance motor systems, the output signals of two position sensors are often used to provide a basis for velocity calculation and phase change of the motor, and these position sensors are of vital importance for reliable operation of rotary or linear switched reluctance motor systems. However, common photoelectric, magnetoelectric and electromagnetic position sensors may malfunction and result in loss of edge pulses in the output signals of the position sensors after malfunction occurs, owing to dust and collision, etc. If the position sensors have faults and lose efficacy, the phase change of the switched reluctance motor may fail, and the operation reliability of the switched reluctance motor may be affected adversely. Therefore, fault diagnosis and locating for position sensors is very important. Utilizing four position sensors to provide a basis for velocity calculation and phase change of the motor is highly beneficial for improving fault-tolerance and reliability of a four-phase switched reluctance motor system. The conventional interval time-based fault diagnosis method and edge capture-based fault diagnosis method are only applicable to switched reluctance motors that operate at a constant speed, but are inapplicable to switched reluctance motors that operate at varying speeds. At present, howto realize fault diagnosis and locating of four position sensors of a four-phase switched reluctance motor in constant speed, speeding up and slowing down states.
Summary of the Invention
An embodiment of the present invention provides a fault diagnosis and locating method for four position sensors of a four-phase switched reluctance motor.
The present invention provides a fault diagnosis and locating method for four position sensors of a four-phase switched reluctance motor, comprising the following steps:
1) setting the phase of output signal of a position sensor P of the switched reluctance motor to be earlier than the phase of output signal of a position sensor Q in time, the phase of output signal of the position sensor Q to be earlier than the phase of output signal of a position sensor R in time, the phase of output signal of the position sensor R to be earlier than the phase of output signal of a position sensor S in time, and the phase of output signal of the position sensor S to be earlier than the phase of output signal of the position sensor P in time, and detecting two adjacent rising-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor, wherein, the rising-edge
9851044_1 (GHMatters) P105533.AU 10/01/2018
2015360193 10 Jan 2018 pulse Pi is earlier than the rising-edge pulse P2 in time, and the spacing between two adjacent rising-edge pulses is taken as an interval;
2) judging that the position sensors have no fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, or the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2, or the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2, or the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2;
3) judging that the position sensors have faults in any other case except the cases enumerated in the step 2);
4) setting the interval from the rising edge of the output signal of the position sensor P to the rising edge of the output signal of the position sensor Q as interval (1), the interval from the rising edge of the output signal of the position sensor Q to the falling edge of the output signal of the position sensor R as interval (2), the interval from the falling edge of the output signal of the position sensor R to the falling edge of the output signal of the position sensor S as interval (3), and the interval from the falling edge of the output signal of the position sensor S to the rising edge of the output signal of the position sensor P as interval (4);
5) providing a fault buffer interval if a low-level fault occurs in the position sensors; providing a fault buffer interval if a high-level fault occurs in the position sensors in the interval (1), (2) or (4); providing two fault buffer intervals if a high-level fault occurs in the position sensors in the interval (3);
6) locating the fault in the position sensors after the fault buffer interval(s);
judging that the position sensor P has a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2; judging that the position sensor Q has a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2; judging that the position sensor R has a fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2; judging that the position sensor S has a fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2;
judging that both the position sensor P and the position sensor Q have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2; judging that
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2015360193 10 Jan 2018 both the position sensor Q and the position sensor R have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2; judging that both the position sensor R and the position sensor S have a fault, if the output signal of the position sensor
Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2; judging that both the position sensor S and the position sensor P have a fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2;
judging that both the position sensor P and the position sensor R have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, as well as the output signal of the position sensor Q is detected at another rising-edge pulse P-ι and the output signal of the position sensor S is detected at another rising-edge pulse P2;
judging that both the position sensor Q and the position sensor S have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2, as well as the output signal of the position sensor R is detected at another rising-edge pulse P-ι and the output signal of the position sensor P is detected at another rising-edge pulse P2;
judging that all of the position sensors P, Q and R have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is also detected at the rising-edge pulse P2; judging that all of the position sensors S, P and Q have a fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is also detected at the rising-edge pulse P2; judging that all of the position sensors R, S and P have a fault, if the output signal of the position sensor Q is detected at the rising-edge pulse Pi and the output signal of the position sensor Q is also detected at the rising-edge pulse P2; judging that all of the position sensors Q, R and S have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is also detected at the rising-edge pulse P2;
judging that all of the position sensors P, Q, R and S have a fault, if no edge pulse is detected all the time;
7) detecting two adjacent falling-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor, and repeating the above steps to diagnose faults in the four position sensors of the four-phase switched reluctance motor and locate the position sensors that have a fault.
Beneficial effects: With the technical scheme described above, an embodiment of the present invention is applicable to fault diagnosis and locating of four position sensors of a rotary or linear switched reluctance motor that has four phases or a multiple of four phases in different
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2015360193 10 Jan 2018 topological structures. Whether the position sensors have faults or not can be judged by detecting the sequence of rising-edge pulses in the output signals of the four position sensors; fault diagnosis buffering intervals are set to avoid misjudgment; and faults of position sensors can be located by identifying the output signals of position sensors that are the sources of the rising-edge pulses. The present invention is not only applicable to fault diagnosis and locating of four position sensors of a four-phase switched reluctance motor when the four-phase switched reluctance motor operates in a constant speed, but also applicable to fault diagnosis and locating of four position sensors of a four-phase switched reluctance motor when the four-phase switched reluctance motor operates in a speeding up or slowing down state, and can be used for fault diagnosis and locating of one, two, three or four position sensors; in addition, the fault diagnosis and locating result is insusceptible to the variations of motor speed (constant speed, speeding up, slowing down, etc.). The method is highly reliable, highly practical, and has a high value in extensive engineering applications.
Brief Description of the Drawings
In order that the invention may be more clearly ascertained, embodiments will now be described, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a schematic installation diagram of four position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 2 is a schematic diagram of interval division for fault diagnosis of the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Figs. 3a, 3b, 3c and 3d are schematic diagrams of fault diagnosis buffering in the case of a low-level fault in the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 4 is a schematic diagram of fault diagnosis buffering in the case of a high-level fault in interval (1) in the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 5 is a schematic diagram of fault diagnosis buffering in the case of a high-level fault in interval (2) in the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 6 is a schematic diagram of fault diagnosis buffering in the case of a high-level fault in interval (4) in the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 7 is a schematic diagram of fault diagnosis buffering in the case of a high-level fault in interval (3) in the position sensors of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 8 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensor P of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 9 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensor Q of a four-phase switched reluctance motor in an 8/6 structure;
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Fig. 10 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensor R of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 11 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensor S of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 12 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors P and Q of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 13 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors Q and R of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 14 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors R and S of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 15 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors S and P of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 16 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors P and R of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 17 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors Q and S of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 18 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors P, Q and R of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 19 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors S, P and Q of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 20 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors R, S and P of a four-phase switched reluctance motor in an 8/6 structure;
Fig. 21 shows the fault diagnosis and locating result in the case of a low-level fault in the position sensors Q, R and S of a four-phase switched reluctance motor in an 8/6 structure.
Detailed Description of Embodiments of the Invention
Hereunder one example of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a schematic installation diagram of four position sensors P, Q, R and S of a four-phase switched reluctance motor in an 8/6 structure, wherein, the four position sensors P, Q, R and S are installed at an interval angle β15°; the output si gnals generated from the position sensors are shown in Fig. 2; the phase of output signal of the position sensor P of the switched reluctance motor is set to be earlier than the phase of output signal of the position sensor Q in time, the phase of output signal of the position sensor Q is set to be earlier than the phase of output signal of the position sensor R in time, the phase of output signal of the position sensor
R is set to be earlier than the phase of output signal of the position sensor S in time, and the phase of output signal of the position sensor S is set to be earlier than the phase of output signal of the position sensor P in time; the interval from the rising edge of the output signal of the position sensor P to the rising edge of the output signal of the position sensor Q is set as interval (1), the interval from the rising edge of the output signal of the position sensor Q to the
9851044_1 (GHMatters) P105533.AU 10/01/2018
2015360193 10 Jan 2018 falling edge of the output signal of the position sensor R is set as interval (2), the interval from the falling edge of the output signal of the position sensor R to the falling edge of the output signal of the position sensor S is set as interval (3), and the interval from the falling edge of the output signal of the position sensor S to the rising edge of the output signal of the position sensor P is set as interval (4).
Adjacent two rising-edge pulses P-ι and P2 of the output signals from the position sensors of the switched reluctance motor are detected, wherein, the rising-edge pulse P-ι is earlier than the rising-edge pulse P2 in time, and the spacing between adjacent two rising-edge pulses is taken as an interval.
As shown in Fig. 2, the position sensors are judged as having no fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, or the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2, or the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2, or the output signal of the position sensor S is detected at the rising-edge pulse P! and the output signal of the position sensor P is detected at the rising-edge pulse P2; the position sensors are judged as having faults in any other case except the cases enumerated above.
The fault diagnosis is buffered for one interval if the position sensor P has a low-level fault in the interval (1), (2), (3) or (4), as shown in Figs. 3a, 3b, 3c and 3d; the fault diagnosis is buffered for one interval if the position sensor P has a high-level fault in the interval (1), (2) or (4), as shown in Figs. 4, 5 and 6; the fault diagnosis is buffered for two intervals if a high-level fault occurs in the position sensors in the interval (3), as shown in Fig. 7.
The fault is located among the position sensors after the fault buffer interval(s); the position sensor P is judged as having a low-level fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, as shown in Fig. 8. The position sensor Q is judged as having a low-level fault, if the output signal of the position sensor P is detected at the rising-edge pulse
Pi and the output signal of the position sensor R is detected at the rising-edge pulse P2, as shown in Fig. 9. The position sensor R is judged as having a low-level fault if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2, as shown in Fig. 10. The position sensor S is judged as having a low-level fault if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2, as shown in Fig. 11.
Both the position sensors P and Q are judged as having a low-level fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2 as shown in Fig. 12; both the position
9851044_1 (GHMatters) P105533.AU 10/01/2018
2015360193 10 Jan 2018 sensors Q and R are judged as having a low-level fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2, as shown in Fig. 13; both the position sensors R and S are judged as having a low-level fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2, as shown in Fig. 14; both the position sensors S and P are judged as having a low-level fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, as shown in Fig. 15;
The position sensors P and R are judged as having a low-level fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, as well as the output signal of the position sensor Q is detected at another rising-edge pulse P-ι and the output signal of the position sensor S is detected at another rising-edge pulse P2, as shown in Fig. 16. The position sensors
S and Q are judged as having a low-level fault if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2, as well as the output signal of the position sensor P is detected at another rising-edge pulse P-ι and the output signal of the position sensor R is detected at another rising-edge pulse P2, as shown in Fig. 17.
The position sensors P, Q and R are judged as having a low-level fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is also detected at the rising-edge pulse P2, as shown in Fig. 18. All of the position sensors S, P and Q are judged as having a low-level fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is also detected at the rising-edge pulse P2, as shown in Fig. 19. All of the position sensors R, S and P are judged as having a low-level fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is also detected at the rising-edge pulse P2, as shown in Fig. 20. All of the position sensors Q, R and S are judged as having a low-level fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is also detected at the rising-edge pulse P2, as shown in Fig. 21.
All of the position sensors P, Q, R and S are judged as having a low-level fault, if no rising-edge pulse is detected all the time.
Adjacent two rising-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor are detected, and the above steps are repeated to diagnose high-level faults in the four position sensors of the four-phase switched reluctance motor and locate the position sensors that have a fault.
Adjacent two falling-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor are detected, and the above steps are repeated to diagnose
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2015360193 10 Jan 2018 low-level faults or high-level faults in the four position sensors of the four-phase switched reluctance motor and locate the position sensors that have a fault.
The method described above are also applicable to fault diagnosis and locating of the position sensors of a four-phase switched reluctance motor with four position sensors in a 16/12 structure or 32/24 structure.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
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Claims (10)

  1. Claims
    1. A fault diagnosis and locating method for four position sensors of a four-phase switched reluctance motor, comprising the following steps:
    5 1) setting the phase of output signal of a position sensor P of the switched reluctance motor to be earlier than the phase of output signal of a position sensor Q in time, the phase of output signal of the position sensor Q to be earlier than the phase of output signal of a position sensor R in time, the phase of output signal of the position sensor R to be earlier than the phase of output signal of a position sensor S in time, and the phase of output
    10 signal of the position sensor S to be earlier than the phase of output signal of the position sensor P in time, and detecting two adjacent rising-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor, wherein, the rising-edge pulse P-ι is earlier than the rising-edge pulse P2 in time, and the spacing between two adjacent rising-edge pulses is taken as an interval;
    15 2) judging that the position sensors have no fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, or the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2, or the output signal of the position sensor R is
    20 detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2, or the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2;
    3) judging that the position sensors have faults in any other case except the cases
    25 enumerated in the step 2);
    4) setting the interval from the rising edge of the output signal of the position sensor P to the rising edge of the output signal of the position sensor Q as interval (1), the interval from the rising edge of the output signal of the position sensor Q to the falling edge of the output signal of the position sensor R as interval (2), the interval from the falling edge of
    30 the output signal of the position sensor R to the falling edge of the output signal of the position sensor S as interval (3), and the interval from the falling edge of the output signal of the position sensor S to the rising edge of the output signal of the position sensor P as interval (4);
    5) providing a fault buffer interval if a low-level fault occurs in the position sensors; providing
    35 a fault buffer interval if a high-level fault occurs in the position sensors in the interval (1), (2) or (4); providing two fault buffer intervals if a high-level fault occurs in the position sensors in the interval (3);
    6) locating the fault in the position sensors after the fault buffer interval(s);
    judging that the position sensor P has a fault, if the output signal of the position sensor S
    9851044_1 (GHMatters) P105533.AU 10/01/2018
    2015360193 10 Jan 2018 is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2; judging that the position sensor Q has a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2; judging that
    5 the position sensor R has a fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is detected at the rising-edge pulse P2; judging that the position sensor S has a fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2;
    10 judging that both the position sensor P and the position sensor Q have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2; judging that both the position sensor Q and the position sensor R have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the
    15 position sensor S is detected at the rising-edge pulse P2; judging that both the position sensor R and the position sensor S have a fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is detected at the rising-edge pulse P2; judging that both the position sensor S and the position sensor P have a fault, if the output signal of the position sensor R is detected at
    20 the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2;
    judging that both the position sensor P and the position sensor R have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is detected at the rising-edge pulse P2, as well as
    25 the output signal of the position sensor Q is detected at another rising-edge pulse P-ι and the output signal of the position sensor S is detected at another rising-edge pulse P2; judging that both the position sensor Q and the position sensor S have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is detected at the rising-edge pulse P2, as well as
    30 the output signal of the position sensor R is detected at another rising-edge pulse P-ι and the output signal of the position sensor P is detected at another rising-edge pulse P2; judging that all of the position sensors P, Q and R have a fault, if the output signal of the position sensor S is detected at the rising-edge pulse P-ι and the output signal of the position sensor S is also detected at the rising-edge pulse P2; judging that all of the
    35 position sensors S, P and Q have a fault, if the output signal of the position sensor R is detected at the rising-edge pulse P-ι and the output signal of the position sensor R is also detected at the rising-edge pulse P2; judging that all of the position sensors R, S and P have a fault, if the output signal of the position sensor Q is detected at the rising-edge pulse P-ι and the output signal of the position sensor Q is also detected at the rising-edge
    9851044_1 (GHMatters) P105533.AU 10/01/2018
    2015360193 10 Jan 2018 pulse P2; judging that all of the position sensors Q, R and S have a fault, if the output signal of the position sensor P is detected at the rising-edge pulse P-ι and the output signal of the position sensor P is also detected at the rising-edge pulse P2;
    judging that all of the position sensors P, Q, R and S have a fault, if no edge pulse is 5 detected all the time;
    7) detecting two adjacent falling-edge pulses P-ι and P2 in the output signals of the position sensors of the switched reluctance motor, and repeating the above steps to diagnose faults in the four position sensors of the four-phase switched reluctance motor and locate the position sensors that have a fault.
    9851044_1 (GHMatters) P105533.AU 10/01/2018
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    Fig. 16
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    Fig. 18
    .......|........
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    I P fault flag bit j.—[—|—j.—|—|
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AU2015360193A 2014-12-08 2015-11-30 Trouble-shooting and fault-locating method for four position sensors of four-phase switched reluctance motor Ceased AU2015360193B2 (en)

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CN104333276B (en) 2014-08-27 2017-02-15 中国矿业大学 Torque ripple two-level inhibition method of three-phase switched reluctance motor
CN104457647B (en) * 2014-12-08 2017-04-19 中国矿业大学 Fault diagnosing and positioning method for four position sensors of four-phase switch reluctance motor
CN106338264B (en) * 2016-08-19 2018-08-21 江苏大学 The method for diagnosing faults of hybrid vehicle switching magnetic-resistance BSG position sensors
CN106301136B (en) * 2016-09-06 2019-05-31 中国矿业大学 A kind of switched reluctance machines method for reconstructing phase current with fault tolerance
CN111272104B (en) * 2019-11-21 2021-09-14 中国科学院国家天文台南京天文光学技术研究所 Method suitable for automatically shielding position sensor fault reading head in extreme environment
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1972113A (en) * 2006-11-10 2007-05-30 南京航空航天大学 Fault diagnosis and fault-tolerant control method for brushless motor position signal
CN103439655A (en) * 2013-06-19 2013-12-11 南京航空航天大学 Fault diagnosis method with fault-tolerant control of switch reluctance motor position sensors

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866808A (en) * 1981-10-17 1983-04-21 Kobe Steel Ltd Positioning method for origin of robot
CN1156244A (en) * 1995-03-28 1997-08-06 开关磁阻驱动有限公司 Position coder with defect indicator
KR20010076914A (en) * 2000-01-28 2001-08-17 구자홍 Apparatus and method for driving single phase switched reluctance motor
US7312595B2 (en) * 2002-07-09 2007-12-25 Denso Corporation Motor control apparatus
CN101697469B (en) * 2009-10-28 2011-08-24 南京航空航天大学 Method for controlling position-less sensor of bearing-less switched reluctance motor
CN102386820B (en) * 2011-11-22 2013-06-26 陕西航空电气有限责任公司 Motor rotor position measuring method with compensation capability and device employing same
CN103414408B (en) * 2013-08-12 2016-01-20 太原理工大学 A kind of switched reluctance machines position signalling on-line fault diagnosis and fault tolerant control method
CN103472263A (en) * 2013-09-03 2013-12-25 清华大学 Fault diagnosing method for hall sensor of permanent magnet synchronous motor
CN104457647B (en) * 2014-12-08 2017-04-19 中国矿业大学 Fault diagnosing and positioning method for four position sensors of four-phase switch reluctance motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1972113A (en) * 2006-11-10 2007-05-30 南京航空航天大学 Fault diagnosis and fault-tolerant control method for brushless motor position signal
CN103439655A (en) * 2013-06-19 2013-12-11 南京航空航天大学 Fault diagnosis method with fault-tolerant control of switch reluctance motor position sensors

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