CN205356211U - Current sensor failure reconfiguration device - Google Patents
Current sensor failure reconfiguration device Download PDFInfo
- Publication number
- CN205356211U CN205356211U CN201620049121.XU CN201620049121U CN205356211U CN 205356211 U CN205356211 U CN 205356211U CN 201620049121 U CN201620049121 U CN 201620049121U CN 205356211 U CN205356211 U CN 205356211U
- Authority
- CN
- China
- Prior art keywords
- current
- axle
- current sensor
- module
- synchronous motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a current sensor failure reconfiguration device, the device is based on PMSM control system, include: data conversion functional module, data conversion functional module include that first -order low pass filter submodule piece, stator current survey submodule piece, amplitude limiting submodule piece and clarke inverse transformation submodule piece, stator current surveys the submodule piece be connected with first -order low pass filter submodule piece, amplitude limiting submodule piece respectively, and amplitude limiting submodule piece still is connected with clarke inverse transformation submodule piece. The current sensor failure reconfiguration device that this embodiment provided not only can differentiate the position that the trouble takes place, but also can effective accurate acquisition mix with the fault -signal in feedback current to obtain more accurate failure diagnosis information, realize the current sensor failure reconfiguration function.
Description
Technical field
This utility model relates to permagnetic synchronous motor technical field, particularly relates to a kind of current sensor faults reconstruct device.
Background technology
Control system for permanent-magnet synchronous motor has that high efficiency, high control precision, torque be steady and the advantage such as vibration noise is low, there is good application prospect in a lot of fields, the application scenario such as Digit Control Machine Tool and robot of being widely used in electric automobile, industrial sewing machine, air-conditioning, elevator and higher precision.
In order to ensure the safety and reliability of permagnetic synchronous motor, in the process of permagnetic synchronous motor work, need in real time its running status to be monitored, and when each component failure of control system for permanent-magnet synchronous motor, fault type can be judged timely and make corresponding process, power model within permagnetic synchronous motor, the key componentses such as current sensor are as occurred extremely still and being not detected by, in such cases, being likely to result in permagnetic synchronous motor if worked on cannot normal operation, device damage is caused time serious, make failure propagation further.
But the control system for permanent-magnet synchronous motor that presently, there are is for the diagnosis of current sensor faults, poor real, not accurately, and can only the position that occurs of Judging fault, and more fault message cannot be provided, correct with the current error that fault is caused.
Utility model content
This utility model provides a kind of current sensor faults reconstruct device, in order to solve the technical problem that control system for permanent-magnet synchronous motor of the prior art cannot reconstruct for current sensor faults.
This utility model provides a kind of current sensor faults reconstruct device, device is based on control system for permanent-magnet synchronous motor, it is characterized in that, including: data converting function module, data converting function module includes first-order low-pass marble module, stator current observation submodule, amplitude limit submodule and Clarke inverse transformation submodule；
Stator current observation submodule is connected with first-order low-pass marble module, amplitude limit submodule respectively, and amplitude limit submodule is also connected with Clarke inverse transformation submodule；
Wherein, first-order low-pass marble module, for the α axle reference feedback electric current i according to the permagnetic synchronous motor obtainedαWith β axle reference feedback electric current iβObtain the first state value z1With the second state value z2；
Stator current observation submodule, for according to the first state value z1, the second state value z2, permagnetic synchronous motor α axle with reference to control voltage uαref, β axle with reference to control voltage uβref, anglec of rotation θ and rotational speed omega, it is thus achieved that the α shaft current failure reconfiguration value f of permagnetic synchronous motorα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observation
Amplitude limit submodule is for α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationCarry out amplitude limit；
Clarke inverse transformation submodule, for according to α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationObtain the A phase source current sensor fault reconstruction approach base value f of permagnetic synchronous motorA, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationObservation with B phase power supply normal current
Further, said apparatus also includes: the control unit being connected with data converting function module and the main circuit being connected with control unit；
Wherein, control unit for providing the α axle reference feedback electric current i of permagnetic synchronous motor for data converting function moduleα, β axle reference feedback electric current iβ, α axle with reference to control voltage uαref, β axle with reference to control voltage uβrefAnd rotational speed omega；
Main circuit for providing the anglec of rotation θ of permagnetic synchronous motor for data converting function module, and provides A cross streams power supply feedback current i for control unitAWith B cross streams power supply feedback current iB。
Further, control unit includes PI adjustment module, Park conversion module, Park inverse transform module and Clarke conversion module；Wherein, PI adjustment module is connected with Park conversion module, Park inverse transform module respectively, and Park conversion module is also connected with Clarke conversion module；
Park conversion module, for according to α axle reference feedback electric current iαWith β axle reference feedback electric current iβ, obtain d axle reference feedback electric current idWith q axle reference feedback electric current；
PI adjustment module, for according to d axle reference feedback electric current idWith q axle reference feedback electric current, acquisition q axle reference voltage uqrefWith d axle reference voltage udref；
Park inverse transform module, for according to q axle reference voltage uqrefWith d axle reference voltage udref, obtain α axle with reference to controlling voltage uαrefWith β axle with reference to controlling voltage uβref；
Clarke conversion module, for according to A cross streams power supply feedback current iAWith B cross streams power supply feedback current iB, obtain α axle reference feedback electric current iαWith β axle reference feedback electric current iβ。
Further, said apparatus also includes current sensor, and current sensor is connected with main circuit and Clarke conversion module respectively；
Wherein, current sensor is for obtaining A cross streams power supply feedback current i according to A cross streams power supply and B cross streams power supplyAWith B cross streams power supply feedback current iB。
Further, said apparatus also includes speed detection unit, and speed detection unit is observed submodule with main circuit, Park conversion module and stator current respectively and is connected；
Wherein, speed detection unit, for obtaining permagnetic synchronous motor anglec of rotation θ from permagnetic synchronous motor.
Further, main circuit includes three-phase inverter and permagnetic synchronous motor, and wherein, three-phase inverter is connected with Park inverse transform module, current sensor respectively, and permagnetic synchronous motor is connected with speed detection unit；
Three-phase inverter, for providing power supply for permagnetic synchronous motor.
Further, PI adjustment module includes pi regulator.
Further, said apparatus also includes the host computer that is connected with Clarke inverse transformation submodule.
The current sensor faults reconstruct device that this utility model provides, is not only able to the position that Judging fault occurs, and can also obtain the fault-signal (f being mixed in feedback current effectively accuratelyAAnd fB), thus obtaining more accurate failure diagnosis information, it is achieved current sensor faults recombination function.
Accompanying drawing explanation
Based on embodiment reference accompanying drawing, this utility model will be described in more detail hereinafter.Wherein:
Fig. 1 is the structural representation of the current sensor faults reconstruct device according to this utility model embodiment one；
Fig. 2 is the structural representation of the current sensor faults reconstruct device according to this utility model embodiment two.
In the accompanying drawings, identical parts use identical accompanying drawing labelling.Accompanying drawing is not drawn according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment one
Fig. 1 is the structural representation of the current sensor faults reconstruct device according to this utility model embodiment one, as shown in Figure 1, the present embodiment provides a kind of current sensor faults reconstruct device, described device is based on control system for permanent-magnet synchronous motor, including: data converting function module 2, data converting function module 2 includes first-order low-pass marble module 21, stator current observation submodule 22, amplitude limit submodule 23 and Clarke inverse transformation submodule 24；Stator current observation submodule 22 is connected with first-order low-pass marble module 21, amplitude limit submodule 23 respectively, and amplitude limit submodule 23 is also connected with Clarke inverse transformation submodule 24.
Wherein, first-order low-pass marble module 21, for the α axle reference feedback electric current i according to the permagnetic synchronous motor obtainedαWith β axle reference feedback electric current iβObtain the first state value z1With the second state value z2；Stator current observation submodule 22, for according to the first state value z1, the second state value z2, permagnetic synchronous motor α axle with reference to control voltage uαref, β axle with reference to control voltage uβref, anglec of rotation θ and rotational speed omega, it is thus achieved that the α shaft current failure reconfiguration value f of permagnetic synchronous motorα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationAmplitude limit submodule 23 is for α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationCarry out amplitude limit；Clarke inverse transformation submodule 24, for according to α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationObtain the A phase source current sensor fault reconstruction approach base value f of permagnetic synchronous motorA, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationObservation with B phase power supply normal current
Concrete, A phase source current sensor fault reconstruction approach base value fAWith B phase source current sensor fault reconstruction approach base value fBNamely being current failure reconstruction value, such as normal electrical flow valuve should be 3A, but that at this time detect from current sensor is 5A, the current failure reconstruction value of this moment current sensor is exactly 2A, i.e. A phase source current sensor fault reconstruction approach base value fAWith B phase source current sensor fault reconstruction approach base value fBIt is exactly 2A, and the observation of A phase power supply normal currentObservation with B phase power supply normal currentValue should be just normal electrical flow valuve 3A, the A phase source current sensor fault reconstruction approach base value f of permagnetic synchronous motor can be obtained in this way in real timeAWith B phase source current sensor fault reconstruction approach base value fB.It addition, by the observation of A phase power supply normal currentObservation with B phase power supply normal currentWhole control system for permanent-magnet synchronous motor can be carried out faults-tolerant control, it is to avoid have an accident.
The current sensor faults reconstruct device that the present embodiment provides, is not only able to the position that Judging fault occurs, and can also obtain the fault-signal (f being mixed in feedback current effectively accuratelyAAnd fB), thus obtaining more accurate failure diagnosis information, it is achieved current sensor faults recombination function, pass through f simultaneouslyAAnd fBIt can also be appreciated that the damaged condition of current sensor.
Embodiment two
The present embodiment is the supplementary notes carried out on the basis of embodiment one.
Fig. 2 is the structural representation of the current sensor faults reconstruct device according to this utility model embodiment two, as shown in Figure 2.The present embodiment provides a kind of current sensor faults reconstruct device, also includes: the control unit 3 being connected with data converting function module 2 and the main circuit 4 being connected with control unit 3.
Wherein, control unit 3 for providing the α axle reference feedback electric current i of permagnetic synchronous motor for data converting function module 2α, β axle reference feedback electric current iβ, α axle with reference to control voltage uαref, β axle with reference to control voltage uβrefAnd rotational speed omega；Main circuit 4 for providing the anglec of rotation θ of permagnetic synchronous motor for data converting function module 2, and provides A cross streams power supply feedback current i for control unit 3AWith B cross streams power supply feedback current iB。
Further, control unit 3 includes PI adjustment module 31, Park conversion module 32, Park inverse transform module 33 and Clarke conversion module 34；Wherein, PI adjustment module 31 is connected with Park conversion module 32, Park inverse transform module 33 respectively, and Park conversion module 32 is also connected with Clarke conversion module 34；
Park conversion module 32, for according to α axle reference feedback electric current iαWith β axle reference feedback electric current iβ, obtain d axle reference feedback electric current idWith q axle reference feedback electric current；
PI adjustment module 31, for according to d axle reference feedback electric current idWith q axle reference feedback electric current, acquisition q axle reference voltage uqrefWith d axle reference voltage udref；
Park inverse transform module 33, for according to q axle reference voltage uqrefWith d axle reference voltage udref, obtain α axle with reference to controlling voltage uαrefWith β axle with reference to controlling voltage uβref；
Clarke conversion module 34, for according to A cross streams power supply feedback current iAWith B cross streams power supply feedback current iB, obtain α axle reference feedback electric current iαWith β axle reference feedback electric current iβ。
Concrete, Park Transformation (Parktransformation is called for short Park conversion) be exactly by voltage or electric current from three phase static abc Coordinate Conversion to two cordic phase rotator dq.Clarke transform (Clarketransformation, be called for short Clarke conversion) is each physical quantity based on 3 axles, the stator stationary coordinate systems of 2 dimensions to be transformed in the stator stationary coordinate system of 2 axles, otherwise, then it is Park inverse transformation.
Further, PI adjustment module includes pi regulator.Pi regulator is a kind of linear controller, and it constitutes control deviation according to set-point with real output value, by linear combination, the ratio (P) of deviation and integration (I) is constituted controlled quentity controlled variable, controlled device is controlled.
Further, current sensor faults reconstruct device also includes current sensor 5, and current sensor 5 is connected with main circuit 4 and Clarke conversion module 34 respectively.
Wherein, current sensor 5 is for obtaining A cross streams power supply feedback current i according to A cross streams power supply and B cross streams power supplyAWith B cross streams power supply feedback current iB。
Further, current sensor faults reconstruct device also includes speed detection unit 6, and speed detection unit 6 is observed submodule 22 with main circuit 4, Park conversion module 32 and stator current respectively and is connected；
Wherein, speed detection unit 6, for obtaining the feedback anglec of rotation that permagnetic synchronous motor 42 anglec of rotation θ, anglec of rotation θ are permagnetic synchronous motor from permagnetic synchronous motor 42.
Further, main circuit 4 includes three-phase inverter 41 and permagnetic synchronous motor 42, and wherein, three-phase inverter 41 is connected with Park inverse transform module 33, current sensor 5 respectively, and permagnetic synchronous motor 42 is connected with current sensor 5, speed detection unit 6 respectively；
Three-phase inverter 41, for providing A cross streams power supply and B cross streams power supply for current sensor 5.
Concrete, the A cross streams power supply obtained from three-phase inverter 41 and B cross streams power supply, after over-current sensor 5, obtain A cross streams power supply feedback current iAWith B cross streams power supply feedback current iB, A cross streams power supply feedback current iAWith B cross streams power supply feedback current iBThrough Clarke conversion module 34, it is thus achieved that α axle reference feedback electric current iαWith β axle reference feedback electric current iβ, Park conversion module 32 receives the anglec of rotation θ, the α axle reference feedback electric current i that obtain from speed detection unit 6αWith β axle reference feedback electric current iβ, export d axle reference feedback electric current idWith q axle reference feedback electric current iq, PI adjustment module 31 receives the given rotating speed ω of extraneous inputrefElectric current i given with d axledref, receive d axle reference feedback electric current i simultaneouslydWith q axle reference feedback electric current iq, output obtains q axle reference voltage uqrefWith d axle reference voltage udref, q axle reference voltage uqrefWith d axle reference voltage udrefAfter Park inverse transform module 33 processes, output α axle is with reference to controlling voltage uαrefWith β axle with reference to controlling voltage uβref。
From the α axle reference feedback electric current i that Clarke conversion module 34 obtainsαWith β axle reference feedback electric current iβAfter first-order low-pass marble module 21 processes, it is thus achieved that the first state value z1With the second state value z2, to anglec of rotation θ derivation, it is thus achieved that the rotational speed omega of permagnetic synchronous motor, by the first state value z1, the second state value z2, rotational speed omega, anglec of rotation θ, α axle with reference to control voltage uαrefWith β axle with reference to controlling voltage uβrefInput and observe submodule 22 to stator current, observe submodule 22 through stator current and process, it is thus achieved that the α shaft current failure reconfiguration value f of permagnetic synchronous motorα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationWherein, stator current observation submodule 22 adopts the mode that sliding formwork is observed, α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationAfter amplitude limit submodule 23 processes with Clarke inverse transformation submodule 24, it is thus achieved that A phase source current sensor fault reconstruction approach base value fA, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationWith B phase power supply normal current observation
Further, said apparatus also includes the host computer 1 that is connected with Clarke inverse transformation submodule 24.Host computer 1 is for by A phase source current sensor fault reconstruction approach base value fA, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationObservation with B phase power supply normal currentData display, it is simple to user checks and analyzes.
The current sensor faults reconstruct device that the present embodiment provides, is not only able to the position that Judging fault occurs, and can also obtain the fault-signal (f being mixed in feedback current effectively accuratelyAAnd fB), thus obtaining more accurate failure diagnosis information, it is achieved current sensor faults recombination function, pass through f simultaneouslyAAnd fBIt can also be appreciated that the damaged condition of current sensor, and come A phase source current sensor fault reconstruction approach base value f by host computer 1A, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationObservation with B phase power supply normal currentData display, facilitate user to check and analyze.
Although this utility model being described by reference to preferred embodiment, but when without departing from scope of the present utility model, it is possible to it is carried out various improvement and parts therein can be replaced with equivalent.Especially, as long as being absent from structural hazard, the every technical characteristic being previously mentioned in each embodiment all can combine in any way.This utility model is not limited to the specific embodiment disclosed in literary composition, but includes all technical schemes falling in scope of the claims.
Claims (8)
1. a current sensor faults reconstruct device, described device is based on control system for permanent-magnet synchronous motor, it is characterized in that, including: data converting function module, described data converting function module includes first-order low-pass marble module, stator current observation submodule, amplitude limit submodule and Clarke inverse transformation submodule；
Stator current observation submodule is connected with first-order low-pass marble module, amplitude limit submodule respectively, and amplitude limit submodule is also connected with Clarke inverse transformation submodule；
Wherein, first-order low-pass marble module, for the α axle reference feedback electric current i according to the permagnetic synchronous motor obtainedαWith β axle reference feedback electric current iβObtain the first state value z1With the second state value z2；
Stator current observation submodule, for according to the first state value z1, the second state value z2, permagnetic synchronous motor α axle with reference to control voltage uαref, β axle with reference to control voltage uβref, anglec of rotation θ and rotational speed omega, it is thus achieved that the α shaft current failure reconfiguration value f of permagnetic synchronous motorα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observation
Amplitude limit submodule is for α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationCarry out amplitude limit；
Clarke inverse transformation submodule, for according to α shaft current failure reconfiguration value fα, β shaft current failure reconfiguration value fβ, α axle normal current observationWith β axle normal current observationObtain the A phase source current sensor fault reconstruction approach base value f of permagnetic synchronous motorA, B phase source current sensor fault reconstruction approach base value fB, A phase power supply normal current observationObservation with B phase power supply normal current
2. current sensor faults according to claim 1 reconstruct device, it is characterised in that also include: the control unit being connected with data converting function module and the main circuit being connected with control unit；
Wherein, control unit for providing the α axle reference feedback electric current i of permagnetic synchronous motor for data converting function moduleα, β axle reference feedback electric current iβ, α axle with reference to control voltage uαref, β axle with reference to control voltage uβrefAnd rotational speed omega；
Main circuit for providing the anglec of rotation θ of permagnetic synchronous motor for data converting function module, and provides A cross streams power supply feedback current i for control unitAWith B cross streams power supply feedback current iB。
3. current sensor faults according to claim 2 reconstruct device, it is characterised in that control unit includes PI adjustment module, Park conversion module, Park inverse transform module and Clarke conversion module；Wherein, PI adjustment module is connected with Park conversion module, Park inverse transform module respectively, and Park conversion module is also connected with Clarke conversion module；
Park conversion module, for according to α axle reference feedback electric current iαWith β axle reference feedback electric current iβ, obtain d axle reference feedback electric current idWith q axle reference feedback electric current；
PI adjustment module, for according to d axle reference feedback electric current idWith q axle reference feedback electric current, acquisition q axle reference voltage uqrefWith d axle reference voltage udref；
Park inverse transform module, for according to q axle reference voltage uqrefWith d axle reference voltage udref, obtain α axle with reference to controlling voltage uαrefWith β axle with reference to controlling voltage uβref；
Clarke conversion module, for according to A cross streams power supply feedback current iAWith B cross streams power supply feedback current iB, obtain α axle reference feedback electric current iαWith β axle reference feedback electric current iβ。
4. current sensor faults according to claim 3 reconstruct device, it is characterised in that described device also includes current sensor, and described current sensor is connected with main circuit and Clarke conversion module respectively；
Wherein, current sensor is for obtaining A cross streams power supply feedback current i according to A cross streams power supply and B cross streams power supplyAWith B cross streams power supply feedback current iB。
5. current sensor faults according to claim 4 reconstruct device, it is characterised in that described device also includes speed detection unit, speed detection unit is observed submodule with main circuit, Park conversion module and stator current respectively and is connected；
Wherein, speed detection unit, for obtaining permagnetic synchronous motor anglec of rotation θ from permagnetic synchronous motor.
6. current sensor faults according to claim 5 reconstruct device, it is characterized in that, main circuit includes three-phase inverter and permagnetic synchronous motor, wherein, three-phase inverter is connected with Park inverse transform module, current sensor respectively, and permagnetic synchronous motor is connected with speed detection unit；
Three-phase inverter, for providing power supply for permagnetic synchronous motor.
7. according to the arbitrary described current sensor faults reconstruct device of claim 1-6, it is characterised in that PI adjustment module includes pi regulator.
8. current sensor faults according to claim 7 reconstruct device, it is characterised in that also include the host computer being connected with Clarke inverse transformation submodule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049121.XU CN205356211U (en) | 2016-01-19 | 2016-01-19 | Current sensor failure reconfiguration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049121.XU CN205356211U (en) | 2016-01-19 | 2016-01-19 | Current sensor failure reconfiguration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205356211U true CN205356211U (en) | 2016-06-29 |
Family
ID=56177486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620049121.XU Active CN205356211U (en) | 2016-01-19 | 2016-01-19 | Current sensor failure reconfiguration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205356211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634360A (en) * | 2016-01-19 | 2016-06-01 | 湖南工业大学 | Current sensor fault reconstruction method and device |
| CN114337413A (en) * | 2021-07-28 | 2022-04-12 | 褚启平 | Self-adaptive alternating current servo motor current control method and system |
-
2016
- 2016-01-19 CN CN201620049121.XU patent/CN205356211U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634360A (en) * | 2016-01-19 | 2016-06-01 | 湖南工业大学 | Current sensor fault reconstruction method and device |
| CN105634360B (en) * | 2016-01-19 | 2018-06-12 | 湖南工业大学 | Current sensor faults reconstructing method |
| CN114337413A (en) * | 2021-07-28 | 2022-04-12 | 褚启平 | Self-adaptive alternating current servo motor current control method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Estima et al. | A new approach for real-time multiple open-circuit fault diagnosis in voltage-source inverters | |
| CN104597368B (en) | A kind of three-phase inverter open fault detection method based on electric current | |
| US6989641B2 (en) | Methods and apparatus for fault-tolerant control of electric machines | |
| CN109742989B (en) | Fault diagnosis and processing method for current sensor of permanent magnet synchronous motor control system | |
| CN105048921A (en) | Phase current measurement diagnostic | |
| CN102611368A (en) | Fractional order based control system and control method for direct torque of permanent-magnet synchronous motor for electric vehicle | |
| CN104079215A (en) | Precise detection and adjustment method for initial position of permanent-magnet synchronous motor rotor for vehicle | |
| Huang et al. | An open-circuit fault diagnosis method for PMSM drives using symmetrical and DC components | |
| CN205356211U (en) | Current sensor failure reconfiguration device | |
| Dan et al. | Open-switch and current sensor fault diagnosis strategy for matrix converter-based PMSM drive system | |
| CN107819418A (en) | One kind rotation becomes initial angle rationality checking method and device | |
| CN106817064A (en) | The driving method of alternating current generator and apply its motor driver | |
| Estima et al. | Single power switch open-circuit fault diagnosis in voltage-fed PWM motor drives by the reference current errors | |
| Al-Abbas | Reduced order models of a current source inverter induction motor drive | |
| Vu et al. | A current sensor fault diagnosis method based on phase angle shift technique applying to induction motor drive | |
| CN102735381A (en) | Locked-rotor torque detection device and method for three-phase permanent magnet synchronous motor | |
| Abassi et al. | PMSM DTC drive system fed by fault-tolerant inverter connected to a photovoltaic source | |
| CN105634360B (en) | Current sensor faults reconstructing method | |
| CN209342878U (en) | A kind of permanent magnet synchronous motor MTPA parameter automatic calibration system | |
| JPWO2019155585A1 (en) | Motor control device and cable disconnection detection method | |
| CN104158460B (en) | A kind of motor control semi-physical simulation method and system | |
| CN106712602B (en) | Control device and control method based on position-sensor-free permanent magnet synchronous motor | |
| CN105429519B (en) | A kind of detection device and detection method of permanent-magnetism synchronous motor permanent magnetic magnetic linkage | |
| RincyRaphael | Fault detection of induction motor using envelope analysis | |
| CN103346720A (en) | Self-diagnosis method and device for detecting wiring of servo controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |