CN113890426A - Intelligent IPM module and operation method thereof - Google Patents
Intelligent IPM module and operation method thereof Download PDFInfo
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- CN113890426A CN113890426A CN202111054078.8A CN202111054078A CN113890426A CN 113890426 A CN113890426 A CN 113890426A CN 202111054078 A CN202111054078 A CN 202111054078A CN 113890426 A CN113890426 A CN 113890426A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 8
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
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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
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
- H02P25/026—Synchronous motors controlled by supply frequency thereby detecting the rotor position
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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
- 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
- H02P27/06—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 using dc to ac converters or inverters
- H02P27/08—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 using dc to ac converters or inverters with pulse width modulation
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
- H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
-
- 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
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/03—Determination of the rotor position, e.g. initial rotor position, during standstill or low speed operation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to the technical field of electric automobiles, in particular to an intelligent IPM module and an operation method thereof, and the intelligent IPM module comprises a power supply module, a permanent magnet motor and a control module, wherein the control module is integrated with a single chip microcomputer, a decoder with a signal language conversion function, a sawtooth wave generator, a PWM (pulse-width modulation) driving module, a counter potential detection module, a driving circuit for controlling the rotating speed of the permanent magnet motor by controlling the conduction time of a power tube through square waves and an input/output port, and a three-phase full bridge circuit synthesized by MOS (metal oxide semiconductor) tubes is arranged in the PWM driving module. The controller structure of the invention adopts the mode that the power module is arranged in the control module, thereby improving the heat dissipation capability of the controller, increasing the integral reliability of the controller and optimizing the power consumption generated by the integral power part; the volume of the controller is reduced, so that the controller is compact and miniaturized; simple structure and improved product consistency.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to an intelligent IPM module and an operation method thereof.
Background
A packaging form of a control chip and a power MOS composite module replaces a discrete device product on the market. The electric automobile consists of an automobile body, a motor, a storage battery and a controller. The controller is a driving control center of an electric automobile, and a power switch driving circuit in the current market mainly comprises discrete devices, so that the overcurrent capacity of a product is poor, and the product is poor in consistency and reliability when used as a parallel tube; because the chip is limited by the package, the chip cannot work in the SOA working area safely and reliably.
In chinese patent No. CN200810234868.2, an electric vehicle controller is disclosed, which comprises a central control unit, a driving circuit connected to a motor control output terminal of the central control unit for controlling a brushless motor, a rotating handle control input circuit connected to a rotational speed control input terminal of the central control unit, and a cruise switch connected to a cruise control input terminal of the central control unit; the handle control input circuit is used for being connected with a handle for controlling the rotating speed of the motor; when the central control unit detects that the voltage of the handle control input end of the central control unit is not in a preset range, namely the central control unit judges that the handle control input circuit or the handle has a fault, the central control unit enters a cruise control mode, namely: and only when the cruise switch is closed, the central control unit controls the brushless motor to rotate at a preset rotating speed through the driving circuit, wherein the preset rotating speed is generally half of the highest speed of the electric vehicle during normal running.
The patent is used for solving the problems that if the rotating handle or the brake lever of the electric bicycle breaks down, the motor cannot be started, and a common user does not know the fault, so that inconvenience is brought to use, but the prior art has poor current capability, and poor consistency and reliability when the electric bicycle is used and managed; because the chip is limited by packaging, the chip cannot work in the SOA working area safely and reliably; the problems of load overcurrent, overvoltage and overtemperature protection cannot be detected, and an intelligent IPM module and an operation method thereof are provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses an intelligent IPM module and an operation method thereof, which are used for solving the problems.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides an intelligent IPM module, which comprises a power module and a permanent magnet motor, and comprises a control module, wherein the control module is integrated with a single chip microcomputer, a decoder with a converted signal language, a sawtooth wave generator, a PWM (pulse-width modulation) driving module, a counter potential detection module, a driving circuit for controlling the on-time of a power tube through square waves so as to control the rotating speed of the permanent magnet motor, and an input/output port, wherein a three-phase full bridge circuit composed of MOS (metal oxide semiconductor) tubes is arranged in the PWM driving module.
Furthermore, the control module is also provided with a fault indicator, and the fault indicator is used for indicating undervoltage, overcurrent, overtemperature or short-circuit information in the starting and normal running processes of the permanent magnet motor.
Furthermore, the single chip microcomputer is used for detecting the bus voltage, the bus current or the temperature information of the aluminum substrate in the starting and normal operation processes of the permanent magnet motor.
Furthermore, the single chip microcomputer outputs PWM waves, and corresponding MOS (metal oxide semiconductor) tubes in the three-phase full-bridge circuit are opened through the PWM driving module, so that the phase lines of the permanent magnet motor have the same current, and the position of the motor rotor is determined.
Furthermore, the back electromotive force detection module is used for detecting a position signal generated by the rising of the rotating speed of the permanent magnet motor according to the slope.
Furthermore, the back electromotive force detection module is connected to at least one of the three phases of the permanent magnet motor, and the rotation angle of the permanent magnet motor is judged according to the feedback value of the back electromotive force detection module, so that the initial position of the permanent magnet motor is identified.
Furthermore, the PWM driving module includes an input module, a high-pass filtering module, a dc converting module, a coupling module and an output module, and is configured to receive the PWM wave signal from the single chip, and accordingly open the corresponding MOS transistor in the three-phase full-bridge circuit, so that the phases of the permanent magnet motor have the same current.
In a second aspect, the present invention provides an operation method of an intelligent IPM module, including the following steps:
the S1 single chip microcomputer outputs PWM waves to the PWM driving module according to the set false position state;
s2, corresponding MOS (metal oxide semiconductor) tubes in the three-phase full-bridge circuit are opened through the PWM driving module, so that the phases of the permanent magnet motor have the same current;
s3, determining the initial position of the rotor of the permanent magnet motor, and repeating the operation S2 to accurately position the rotor of the motor;
s4, outputting PWM wave according to the set false position signal, making the permanent magnet motor speed rise according to the slope until the counter potential detection module can correctly detect the position signal;
and S5, driving the permanent magnet motor to rotate to the set rotating speed according to the position signal output by the counter electromotive force detection module.
S6, detecting information such as bus voltage, bus current and aluminum substrate temperature in the starting and normal running processes of the permanent magnet motor, and entering a corresponding protection state after being indicated by the fault indicator.
The invention has the beneficial effects that:
the invention reduces the power loss generated by the product and increases the load carrying capacity of the product; the volume of the product is reduced, the product is compact, miniaturized and intelligently developed, the problems of over-current, over-voltage and over-temperature of the load can be automatically detected, the reliability of the product is improved, the production cost is reduced, and the consistency of the product is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an intelligent IPM module architecture;
FIG. 2 is a schematic circuit diagram of an intelligent IPM module;
FIG. 3 is a schematic step diagram of a method for operating an intelligent IPM module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This embodiment provides an intelligent IPM module, including power module and permanent-magnet machine, including control module, control module integration has singlechip, has decoder, sawtooth wave generator, PWM drive module, back emf detection module of transform signal language, through the conduction time of square wave control power tube in order to control the drive circuit and the input/output port of permanent-magnet machine rotational speed, wherein PWM drive module inside is equipped with the three-phase full-bridge circuit of being constituteed by the MOS nest of tubes.
The control module of the embodiment is also provided with a fault indicator, and the fault indicator is used for indicating undervoltage, overcurrent, overtemperature or short-circuit information in the starting and normal running processes of the permanent magnet motor.
The single chip microcomputer is used for detecting the bus voltage, the bus current or the temperature information of the aluminum substrate in the starting and normal operation processes of the permanent magnet motor.
The single chip microcomputer outputs PWM waves, corresponding MOS (metal oxide semiconductor) tubes in the three-phase full-bridge circuit are opened through the PWM driving module, so that phase lines of the permanent magnet motor have the same current, and the position of a motor rotor is determined.
The back electromotive force detection module is used for detecting a position signal generated by the rising of the rotating speed of the permanent magnet motor according to the slope.
In this embodiment, the back electromotive force detection module is connected to at least one of the three phases of the permanent magnet motor, and the rotation angle of the permanent magnet motor is determined by the feedback value of the back electromotive force detection module, so as to identify the initial position of the permanent magnet motor.
The PWM driving module comprises an input module, a high-pass filtering module, a direct current conversion module, a coupling module and an output module, and is used for receiving PWM wave signals of the single chip microcomputer and opening corresponding MOS (metal oxide semiconductor) transistors in the three-phase full-bridge circuit so that phase lines of the permanent magnet motor have the same current.
Electric vehicle controllers in the prior art are all installed in a single-tube mode, the installation process is complex, the product consistency is poor, the installation structure of the controller integrated full-bridge module is simple, and the product consistency is improved.
Example 2
At a specific implementation level, this embodiment discloses as shown in fig. 1 and fig. 2 an intelligent IPM module, its integrated full-bridge module, including power module 1, control module 2 and permanent-magnet machine 3 that connect gradually, wherein control module 2 includes back electromotive force detection module 4, singlechip 5, fault indicator 6, PWM drive module 7, back electromotive force detection module 4, fault indicator 6 and PWM drive module 7 all are connected with singlechip 5, be equipped with three-phase full-bridge circuit 4 that six MOS transistors constitute in the PWM drive module 7.
The power module 1 of the embodiment is a 48V battery or a 60V battery. And starting the power supply in a three-section starting mode after the power supply is normally switched on.
The single chip microcomputer 5 of the embodiment outputs a PWM wave according to a set pseudo position state, turns on a corresponding MOS transistor through the PWM driving module 7, makes the phase lines of the permanent magnet motor 3 have the same current, determines the initial position of the motor rotor, and repeats the operation twice to accurately position the motor rotor.
In the embodiment, the PWM wave is output according to the set false position signal, so that the rotating speed of the permanent magnet motor 3 rises according to the slope until the counter potential detection module 4 can correctly detect the position signal.
The permanent magnet motor 3 is driven to rotate to the set rotating speed according to the position signal output by the counter potential detection module 4.
During the starting and normal operation of the permanent magnet motor 3, the singlechip 5 continuously detects information such as bus voltage, bus current, aluminum substrate temperature and the like, and if the information such as undervoltage, overcurrent, overtemperature, short circuit and the like is detected, the fault indicator 6 indicates and enters a corresponding protection state.
In the prior art, because the low-voltage MOSFET adopted by the controller has lower voltage and larger current, the adoption of the existing TO-50\ TO-77\ TO-263 is limited by the overcurrent of product pins. The controller integrated full-bridge module of the embodiment solves the packaging limitation and greatly increases the over-current capability of the product; meanwhile, the reliability of the product is improved, the production cost is reduced, and the consistency of the product can be effectively improved.
Example 3
Referring to fig. 3, the present embodiment provides an operation method of an intelligent IPM module, including the following steps:
the S1 single chip microcomputer outputs PWM waves to the PWM driving module according to the set false position state;
s2, corresponding MOS (metal oxide semiconductor) tubes in the three-phase full-bridge circuit are opened through the PWM driving module, so that the phases of the permanent magnet motor have the same current;
s3, determining the initial position of the rotor of the permanent magnet motor, and repeating the operation S2 to accurately position the rotor of the motor;
s4, outputting PWM wave according to the set false position signal, making the permanent magnet motor speed rise according to the slope until the counter potential detection module can correctly detect the position signal;
and S5, driving the permanent magnet motor to rotate to the set rotating speed according to the position signal output by the counter electromotive force detection module.
S6, detecting information such as bus voltage, bus current and aluminum substrate temperature in the starting and normal running processes of the permanent magnet motor, and entering a corresponding protection state after being indicated by the fault indicator.
In conclusion, the controller structure of the invention adopts the mode that the power module is arranged in the control module, thereby improving the heat dissipation capability of the controller, increasing the integral reliability of the controller and optimizing the power consumption generated by the integral power part; the volume of the controller is reduced, so that the controller is compact and miniaturized; simple structure and improved product consistency.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an intelligent IPM module, includes power module and permanent-magnet machine, its characterized in that, including control module, control module integration has singlechip, has decoder, sawtooth generator, PWM drive module, the back emf detection module of transform signal language, through the conduction time of square wave control power tube in order to control the drive circuit and the input/output port of permanent-magnet machine rotational speed, wherein PWM drive module inside is equipped with the three-phase full bridge circuit of being constituteed by the MOS nest of tubes.
2. The intelligent IPM module of claim 1, wherein the control module is further configured with a fault indicator for indicating undervoltage, overcurrent, overtemperature, or short circuit information during start-up and normal operation of the PM motor.
3. The intelligent IPM module of claim 1, wherein the single chip microcomputer is configured to detect bus voltage, bus current or aluminum substrate temperature information during startup and normal operation of the PM.
4. The intelligent IPM module of claim 3, wherein the single chip microcomputer outputs PWM waves, and the PWM driving module turns on corresponding MOS transistors in the three-phase full-bridge circuit to enable the phases of the permanent magnet motor to have the same current, so as to determine the position of the rotor of the motor.
5. The intelligent IPM module of claim 1, wherein the back emf detection module is configured to detect a position signal generated by a slope increase in the speed of the PM motor.
6. An intelligent IPM module as claimed in claim 1, wherein said back electromotive force detection module is connected to at least one of three phases of said PM motor, and the rotation angle of said PM motor is judged by the feedback value of said back electromotive force detection module, so as to identify the initial position thereof.
7. The intelligent IPM module of claim 1, wherein the PWM driving module comprises an input module, a high-pass filter module, a DC conversion module, a coupling module and an output module, and is configured to receive the PWM wave signal from the single chip microcomputer and accordingly turn on the corresponding MOS transistor in the three-phase full-bridge circuit, so that the phases of the permanent magnet motor have the same current.
8. An operation method of an intelligent IPM module, which is characterized by comprising the following steps:
the S1 single chip microcomputer outputs PWM waves to the PWM driving module according to the set false position state;
s2, corresponding MOS (metal oxide semiconductor) tubes in the three-phase full-bridge circuit are opened through the PWM driving module, so that the phases of the permanent magnet motor have the same current;
s3, determining the initial position of the rotor of the permanent magnet motor, and repeating the operation S2 to accurately position the rotor of the motor;
s4, outputting PWM wave according to the set false position signal, making the permanent magnet motor speed rise according to the slope until the counter potential detection module can correctly detect the position signal;
and S5, driving the permanent magnet motor to rotate to the set rotating speed according to the position signal output by the counter electromotive force detection module.
S6, detecting information such as bus voltage, bus current and aluminum substrate temperature in the starting and normal running processes of the permanent magnet motor, and entering a corresponding protection state after being indicated by the fault indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054078.8A CN113890426A (en) | 2021-09-09 | 2021-09-09 | Intelligent IPM module and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054078.8A CN113890426A (en) | 2021-09-09 | 2021-09-09 | Intelligent IPM module and operation method thereof |
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| CN113890426A true CN113890426A (en) | 2022-01-04 |
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| CN202111054078.8A Pending CN113890426A (en) | 2021-09-09 | 2021-09-09 | Intelligent IPM module and operation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659228A (en) * | 2017-10-27 | 2018-02-02 | 无锡工赢智能科技有限公司 | A kind of controller integrates full-bridge modules |
| CN213783267U (en) * | 2020-10-14 | 2021-07-23 | 华帝股份有限公司 | PWM drive control circuit |
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2021
- 2021-09-09 CN CN202111054078.8A patent/CN113890426A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659228A (en) * | 2017-10-27 | 2018-02-02 | 无锡工赢智能科技有限公司 | A kind of controller integrates full-bridge modules |
| CN213783267U (en) * | 2020-10-14 | 2021-07-23 | 华帝股份有限公司 | PWM drive control circuit |
Non-Patent Citations (1)
| Title |
|---|
| 李博;邓晓燕;: "基于STC12C5410AD的电动车无刷电机控制器检测", 现代电子技术, no. 07, pages 208 * |
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