CN103856141A - Adjusting device reducing output of motor during breakdown of temperature sensor, and method - Google Patents
Adjusting device reducing output of motor during breakdown of temperature sensor, and method Download PDFInfo
- Publication number
- CN103856141A CN103856141A CN201310451507.4A CN201310451507A CN103856141A CN 103856141 A CN103856141 A CN 103856141A CN 201310451507 A CN201310451507 A CN 201310451507A CN 103856141 A CN103856141 A CN 103856141A
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- China
- Prior art keywords
- motor
- temperature
- described motor
- temperature sensor
- magnet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
Abstract
The invention provides an adjusting device reducing output of a motor during breakdown of a temperature sensor, and a method. The adjusting device is characterized in that when a temperature sensor of a motor breaks down, by calculating the temperature of a magnet of the motor and maximizing a torque output limit value of the motor according to the temperature of the magnet of the motor, the torque output of the motor is precisely controlled. According to the invention, even if the temperature sensor of the motor breaks down, the torque output limit value of the motor can be maximized, and the control degree of the torque output can be constantly kept.
Description
Technical field
While the present invention relates to motor temperature sensor fault, reduce adjusting device and the method thereof of motor output, relate in particular to a kind of device and method of the reduction of minimum motor output in the time of motor temperature sensor fault.
Background technology
Prior art, its formation comprises: whether the temperature sensor of fault detecting part motor sensor breaks down; Calculating part, in the time that fault detecting part senses the temperature sensor fault of motor, calculates and reduces output torque value.
Fault detecting part is for the fault (broken string or short circuit) of motor sensor temperature sensor.
For example, when the temperature value that fault detecting part transmits at the temperature sensor from motor is broken string or the corresponding magnitude of voltage of short circuit, sensing is motor temperature sensor fault.
Calculating part, in the time that fault detecting part senses motor temperature sensor fault, according to torque instruction boundary (limit) value by test determines before, is defined as 0～40% by the output torque value of motor.
But, prior art is in the time that the temperature sensor that senses motor is fault, owing to obtaining the temperature information about motor from motor temperature transducer, therefore when to motor access electric current, in order to prevent overheated magnet demagnetize and the coil burnout that causes motor due to motor under the state of not knowing motor temperature, the output torque value of motor can only be defined as to 0～40%.
Therefore, due to the restriction of this torque output, even if the temperature of actual motor is 80 DEG C (maximum outputs can trip temperature), also the torque output of motor cannot be adjusted to maximum output, cannot control along with the variations in temperature of motor magnet the torque output of motor, there is the problem that torque departure increases.
Summary of the invention
Technical problem
The present invention is for solving described problem, when being to provide a kind of motor temperature sensor fault, its object reduces adjusting device and the method for the output of (derating) motor, with in the time that motor temperature transducer breaks down, calculate the magnet temperature of motor, according to the motor magnet temperature of extrapolating, the torque output limit value of minimum motor, accurately controls the torque output of motor.
Technical scheme
In order to reach described object, during according to the motor temperature sensor fault of one aspect of the invention, reduce the adjusting device of motor output, comprising: detecting part, whether the temperature sensor of its motor sensor breaks down; Calculating part, it according to the torque output maximum of the described motor of having set, calculates output torque value in the time of the temperature sensor fault of described motor; Magnet temperature reckoning portion, it is according to the counter electromotive force value of described motor, calculates the temperature of the magnet that is positioned at the rotor that the resolver of described motor comprises; Current-order calculating part, the current-order that its calculating should apply to described motor, so that the described motor output torque corresponding with the torque instruction receiving; And inverter current control part, it makes the electric current corresponding with described current-order connect described motor, wherein, this current-order is that the phase current values by motor described in sensing and the position angle that is contained in the rotor of described motor resolver calculate.
The control method that reduces motor output when motor temperature sensor fault according to a further aspect of the present invention, comprising: the step whether temperature sensor of motor sensor breaks down; In the time sensing the temperature sensor fault of described motor, according to the torque output maximum of the described motor of having set, calculate the step that reduces output torque value; According to the counter electromotive force value of described motor, calculate the step of the temperature of the magnet that is positioned at the rotor that the resolver of described motor comprises; According to the described magnet temperature of extrapolating, the current-order that calculating should apply to described motor, so that described motor is exported the step of the torque corresponding with the torque instruction receiving; And make to connect corresponding to the electric current of described current-order the step of described motor, wherein, this current-order is to calculate by the phase current values of motor described in sensing and the position angle that is contained in the rotor of described motor resolver.
Technique effect
According to the present invention, even in the situation that motor temperature transducer breaks down, torque output limit value that also can minimum motor, can the control degree of constant maintenance to torque output.
Brief description of the drawings
Fig. 1 is the block diagram of the adjusting device of the reduction motor output of explanation one embodiment of the invention;
Fig. 2 is the explanation motor magnet temperature of one embodiment of the invention and the schematic diagram of counter electromotive force relation;
Fig. 3 is the flow chart of the control method of the reduction motor output of explanation one embodiment of the invention.
Description of reference numerals
110: detecting part 120: calculating part
130: magnet temperature reckoning portion 140: current-order calculating part
150: inverter current control part 200: motor
Embodiment
With reference to accompanying drawing and the embodiment following with its aftermentioned together describing in detail, advantage of the present invention and feature, and reach its method will be clear and definite.But, the present invention is not defined in the embodiment of following discloses, but embody with mutually different variform, the present embodiment only makes of the present invention open more complete, for the category that makes general technical staff of the technical field of the invention can easily understand invention provides, the present invention is defined by the category of claims.
In addition, the term using in this specification, for embodiment is described, does not really want to limit the present invention.In this manual, as long as do not mention especially in sentence, odd number type also comprises complex number type." the comprising (comprises) " using in specification and/or " (comprising) that comprise ", refer to that the inscape, step, action and/or the element that mention are not got rid of exist or append more than one other inscapes, step, action and/or element.With reference to the accompanying drawings, describe embodiments of the invention in detail.
Below with reference to Fig. 1 and Fig. 2, the adjusting device of the reduction motor output of one embodiment of the invention is described.Fig. 1 is the block diagram of the adjusting device of reduction (derating) the motor output of explanation one embodiment of the invention, and Fig. 2 is the explanation motor magnet temperature of one embodiment of the invention and the schematic diagram of counter electromotive force (counter electromotive force) relation.
As shown in Figure 1, the adjusting device of reduction motor output of the present invention, comprises detecting part 110, calculating part 120, magnet temperature reckoning portion 130 and current-order calculating part 140 and inverter (invertor) current control division 150.
Whether the temperature sensor of detecting part 110 motor sensors 200 breaks down.
For example, detecting part 110 receives the temperature value sending from the temperature sensor of motor 200, if the temperature value sending is the line broken string that is connected with temperature sensor or the corresponding magnitude of voltage of situation of short circuit, sensing is the temperature sensor fault of motor 200.
Calculating part 120, in the time that sensed portion 110 sensings are the temperature sensor fault of motor 200, is defined as 80% by the torque output maximum (Max Torque) of the motor of having set 200.
For example, calculating part 120, according to the torque output maximum of the motor 200 of having set, following calculating reduced output torque value.
Reduce the torque output maximum (Max Torque) × 0.8 of output torque value=set
Magnet temperature reckoning portion 130, it is according to the counter electromotive force value of motor 200 (counter electromotive force value), calculates the temperature of the magnet that is positioned at the rotor that motor 200 resolvers comprise.
For example, magnet temperature reckoning portion 130, when the counter electromotive force value of measuring under 3000rpm is 110V, with 110V*1000/3000 (=36.7V), calculate the counter electromotive force value (emf1) of 1000rpm benchmark, the magnet temperature that can extrapolate motor 200 by the counter electromotive force value (36.7V) of the motor 200 calculating is 80 DEG C.
Current-order calculating part 140, the current-order that its calculating should apply to motor 200, so that motor 200 can be realized the output corresponding to the torque of the torque instruction receiving.
For example, current-order calculating part 140, receive DC terminal voltage, the speed of motor 200 and the temperature of motor 200 etc., the current-order that calculating should apply to motor 200, so that motor 200 can be realized the output corresponding to the torque of the torque instruction receiving.
At this, the temperature of motor 200 adopts the temperature of the magnet that is positioned at motor 200 rotors of being calculated by magnet temperature reckoning portion 130.
Inverter current control part 150 control inverters, so that described in sensing the phase current values of motor 200 and be contained in described motor 200 resolvers rotor position angle and the corresponding electric current of described current-order that calculates is connected described motor 200.
As mentioned above, according to the present invention, even in the situation that motor temperature transducer breaks down, torque output limit value that also can minimum motor, can the control degree of constant maintenance to torque output.
With reference to Fig. 1 and Fig. 2, the adjusting device that the reduction motor of one embodiment of the invention is exported is described above, the control method of the reduction motor output of one embodiment of the invention has been described below with reference to Fig. 3.
As shown in Figure 3, in step S300, whether the temperature sensor fault of motor sensor 200.
For example, judge that whether the temperature value transmitting from motor 200 temperature sensors is that the line that is connected with temperature sensor breaks or corresponding magnitude of voltage when short circuit, through judgement, the temperature value transmitting is that the line that is connected with temperature sensor breaks or when short circuit when corresponding magnitude of voltage, sensing is the temperature sensor fault of motor 200.
Through sensing, when the temperature sensor of motor 200 is sensed to be fault, calculates the torque output maximum (Max Torque) of having set is defined as to 80%, reduce output torque value.
Reduce output torque value=Max Torque × 0.8
In step S301, whether the torque value that the torque instruction that judgement receives comprises is greater than the reduction output torque value calculating; In step S302, through judgement, if be contained in the torque value of torque instruction while being greater than the reduction output torque value calculating, the reduction output torque value that the torque value that is contained in torque instruction is set as calculating.
In step S303, confirm whether the current value that is contained in current-order is roughly 0, through confirming, the current value that is contained in current-order is roughly at 0 o'clock, according to the counter electromotive force value of motor 200, calculate the temperature of the magnet that is positioned at the rotor that motor 200 resolvers comprise.
For example, when the counter electromotive force value of motor 200 equals to apply zero (Zero) electric current to motor 200, the magnitude of voltage (Vqe:Q shaft voltage command value) being applied by inverter; Be positioned at motor 200 rotors magnet temperature as described in Figure 2, utilize counter electromotive force-magnet temperature map under 1000rpm to calculate.That is, utilize the counter electromotive force value of the motor 200 going out by 1000rpm basis conversion in arbitrary speed, calculate the temperature of the magnet that is positioned at rotor.
In step S304, be the temperature of motor 200 by the Temperature Setting of the magnet that is positioned at rotor of extrapolating.
The current value that is contained in current-order that calculating should apply to motor 200, so that motor 200 can be realized the output corresponding to the torque of the torque instruction receiving.
For example, at step S305, receive DC terminal voltage, the speed of motor 200 and the temperature of motor 200 etc., the current value that is contained in current-order (Id, Iq) that calculating should apply to motor 200, so that motor 200 can be realized the output corresponding to the torque of the torque instruction receiving.
But through step S300 sensing, when the temperature sensor of motor 200 is not sensed to be fault, in step S306, the coil temperature of motor 200 can be set as to the temperature of motor 200; And, to confirm through step S303, the current value that is contained in current-order is not roughly at 0 o'clock, in step S307, can be the temperature of current motor 200 by the Temperature Setting of last stage motor 200.
Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an adjusting device that reduces motor output when motor temperature sensor fault, is characterized in that, comprising:
Detecting part, whether the temperature sensor of its motor sensor breaks down;
Calculating part, it according to the torque output maximum of the described motor of having set, calculates and reduces output torque value in the time sensing the temperature sensor fault of described motor by described detecting part;
Magnet temperature reckoning portion, it is according to the counter electromotive force value of described motor, calculates the temperature of the magnet that is positioned at the rotor that the resolver of described motor comprises;
Current-order calculating part, the current-order that its calculating should apply to described motor, so that the described motor output torque corresponding with the torque instruction receiving; And
Inverter current control part, it makes the electric current corresponding with described current-order connect described motor, wherein, this current-order is that the phase current values by motor described in sensing and the position angle that is contained in the rotor of described motor resolver calculate.
2. the adjusting device that reduces motor output when motor temperature sensor fault according to claim 1, is characterized in that:
When the counter electromotive force value of described motor equals to apply zero (Zero) electric current to described motor, the magnitude of voltage (Vqe:Q shaft voltage command value) being applied by inverter;
Described magnet temperature reckoning portion, it utilizes the counter electromotive force-magnet temperature map under the 1000rmp having set, and calculates the temperature of the magnet that is positioned at described motor rotor, and the temperature that is described motor by the Temperature Setting of the described magnet of extrapolating.
3. the adjusting device that reduces motor output when motor temperature sensor fault according to claim 1, is characterized in that:
Described current-order calculating part, the current-order that its calculating should apply to described motor, so that described motor output is corresponding to the torque of the torque instruction receiving, wherein, this torque instruction is to calculate according to the input message that comprises the speed of DC terminal voltage, described motor and be positioned at the temperature of the magnet of the rotor that described motor resolver comprises.
4. the adjusting device that reduces motor output when motor temperature sensor fault according to claim 1, is characterized in that:
The temperature of described motor is the temperature of the magnet that is positioned at described motor rotor extrapolated by described magnet temperature reckoning portion.
5. the adjusting device that reduces motor output when motor temperature sensor fault according to claim 1, is characterized in that:
Described detecting part, it receives the temperature value sending from the temperature sensor of described motor, in the time that the temperature value sending is the magnitude of voltage during corresponding to the line broken string being connected with described temperature sensor or short circuit, the temperature sensor fault that sensing is described motor.
6. a control method that reduces motor output when motor temperature sensor fault, is characterized in that, comprising:
The step whether temperature sensor of motor sensor breaks down;
In the time sensing the temperature sensor fault of described motor, according to the torque output maximum of the described motor of having set, calculate the step that reduces output torque value;
According to the counter electromotive force value of described motor, calculate the step of the temperature of the magnet that is positioned at the rotor that the resolver of described motor comprises;
According to the described magnet temperature of extrapolating, the current-order that calculating should apply to described motor, so that described motor is exported the step of the torque corresponding with the torque instruction receiving; And
Make to connect corresponding to the electric current of described current-order the step of described motor, wherein, this current-order is to calculate by the phase current values of motor described in sensing and the position angle that is contained in the rotor of described motor resolver.
7. the control method that reduces motor output when motor temperature sensor fault according to claim 6, is characterized in that:
When the counter electromotive force value of described motor equals to apply zero (Zero) electric current to described motor, the magnitude of voltage (Vqe:Q shaft voltage command value) being applied by inverter;
Calculate the step of described temperature, comprise the counter electromotive force-magnet temperature map under the 1000rmp that utilization set, reckoning is positioned at the temperature of the magnet of described motor rotor, and the step of the temperature that is described motor by the Temperature Setting of the described magnet of extrapolating.
8. the control method that reduces motor output when motor temperature sensor fault according to claim 6, is characterized in that:
Calculate the step of described current-order, to calculate the current-order that should apply to described motor, so that described motor output is corresponding to the torque of the torque instruction receiving, wherein, this torque instruction is to calculate according to the input message that comprises the speed of DC terminal voltage, described motor and be positioned at the temperature of the magnet of the rotor that described motor resolver comprises.
9. the control method that reduces motor output when motor temperature sensor fault according to claim 6, is characterized in that:
The temperature of described motor is the temperature of the magnet that is positioned at described motor rotor extrapolated by described magnet temperature reckoning portion.
10. the control method that reduces motor output when motor temperature sensor fault according to claim 6, is characterized in that, the step whether temperature sensor of described motor sensor breaks down, comprising:
Receive the step of the temperature value sending from the temperature sensor of described motor; And
In the time that the temperature value sending is the magnitude of voltage during corresponding to the line broken string being connected with described temperature sensor or short circuit, the step of the temperature sensor fault that sensing is described motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120141189A KR20140073209A (en) | 2012-12-06 | 2012-12-06 | Apparatus and Method Adjusting Derating Torque Output of Motor when Temperature Sensor of Motor has broken |
| KR10-2012-0141189 | 2012-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103856141A true CN103856141A (en) | 2014-06-11 |
| CN103856141B CN103856141B (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310451507.4A Active CN103856141B (en) | 2012-12-06 | 2013-09-27 | Adjusting means and the method for motor output is reduced during temperature sensor fault |
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| Country | Link |
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| KR (1) | KR20140073209A (en) |
| CN (1) | CN103856141B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017195720A (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Controller of rotary electric machine |
| WO2017183698A1 (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Control device for dynamoelectric machine |
| CN107315433A (en) * | 2017-06-23 | 2017-11-03 | 北京新能源汽车股份有限公司 | The method for acquiring temperature and device of motor |
| CN112874318A (en) * | 2021-01-28 | 2021-06-01 | 奇瑞新能源汽车股份有限公司 | Control method and device of driving motor and vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138312A (en) * | 2019-05-13 | 2019-08-16 | 浙江吉利控股集团有限公司 | A kind of motor rotor temperature estimation method, device and controller |
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| CN101026298A (en) * | 2006-02-23 | 2007-08-29 | 松下电工株式会社 | Electric power tool |
| US20090168832A1 (en) * | 2008-01-02 | 2009-07-02 | Gm Global Technology Operations, Inc. | Temperature sensor diagnostics |
| CN101516714A (en) * | 2006-09-15 | 2009-08-26 | 丰田自动车株式会社 | Vehicle steering control system and control method therefor |
| CN102135453A (en) * | 2010-12-10 | 2011-07-27 | 奇瑞汽车股份有限公司 | Method and system for monitoring motor temperature as well as method and system for controlling motor power |
-
2012
- 2012-12-06 KR KR1020120141189A patent/KR20140073209A/en not_active Application Discontinuation
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2013
- 2013-09-27 CN CN201310451507.4A patent/CN103856141B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101026298A (en) * | 2006-02-23 | 2007-08-29 | 松下电工株式会社 | Electric power tool |
| CN101516714A (en) * | 2006-09-15 | 2009-08-26 | 丰田自动车株式会社 | Vehicle steering control system and control method therefor |
| US20090168832A1 (en) * | 2008-01-02 | 2009-07-02 | Gm Global Technology Operations, Inc. | Temperature sensor diagnostics |
| CN102135453A (en) * | 2010-12-10 | 2011-07-27 | 奇瑞汽车股份有限公司 | Method and system for monitoring motor temperature as well as method and system for controlling motor power |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017195720A (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Controller of rotary electric machine |
| WO2017183699A1 (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Control device for dynamoelectric machine |
| WO2017183698A1 (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Control device for dynamoelectric machine |
| JP2017195719A (en) * | 2016-04-21 | 2017-10-26 | 株式会社デンソー | Controller of rotary electric machine |
| CN107315433A (en) * | 2017-06-23 | 2017-11-03 | 北京新能源汽车股份有限公司 | The method for acquiring temperature and device of motor |
| CN112874318A (en) * | 2021-01-28 | 2021-06-01 | 奇瑞新能源汽车股份有限公司 | Control method and device of driving motor and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103856141B (en) | 2016-09-21 |
| KR20140073209A (en) | 2014-06-16 |
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