CN110277953A - Active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method - Google Patents
Active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method Download PDFInfo
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- CN110277953A CN110277953A CN201910532961.XA CN201910532961A CN110277953A CN 110277953 A CN110277953 A CN 110277953A CN 201910532961 A CN201910532961 A CN 201910532961A CN 110277953 A CN110277953 A CN 110277953A
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- China
- Prior art keywords
- permanent magnet
- magnet synchronous
- synchronous motor
- voltage source
- pwm frequency
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
Abstract
It is described to include the following steps: one, respectively place a temperature sensor on the radiator of each voltage source inverter of permanent magnet synchronous motor the invention discloses a kind of active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method；Two, each three-phase voltage source inverter for detecting permanent magnet synchronous motor, obtains temperature sampling value；Three, by active heat management algorithm, the driver given frequency high according to temperature should lower principle, obtain the given PWM frequency for driving each three-phase voltage source inverter；Four, the reference voltage vector and PWM frequency Setting signal of each driver are obtained according to power of motor and given PWM frequency；Five, the pwm signal that driving three-phase voltage source inverter is generated by space vector pulse width modulation, to realize the active heat management of modular event driven device.The present invention extends the modular event driven device service life of multiple-unit permanent magnet synchronous motor, improves the reliability of electric machine control system.
Description
Technical field
The invention belongs to motor driven and field of power electronics, are related to a kind of using the PWM frequency for changing modular event driven device
Rate is come the method for realizing control system for permanent-magnet synchronous motor active heat management.
Background technique
Permanent magnet synchronous motor (PMSM) has high reliability, high power density, high control precision etc. excellent compared to other motors
Point, therefore it is in numerically-controlled machine tool, robot servo control, electric car, military issue weapons, deep water servo-system and aerospace etc.
Field has obtained development at full speed.For the reliability for improving electric machine control system, torque pulsation is reduced, permanent magnet synchronous motor can be adopted
With the winding construction of multiple unit motors, wherein each unit motor is made of a set of three-phase windings.
When driving has the permanent magnet synchronous motor of multiple unit winding constructions, multiple three-phase voltage source inverters are needed,
Since each three-phase voltage source inverter constitutes a power module, so foring the motor driver of modular construction.
When driving this motor, theoretically the output power of each modularized motor driver should be identical, to protect
Motor is demonstrate,proved for electrical equalization.Power switch device but in actual condition, since winding parameter certainly exists difference, and in driver
Part has differences, and the power that will lead in each unit motor is unbalanced.If power there are unbalanced, will lead to flow through it is each
The electric current of driver is different.The service life of power electronic devices is heavily dependent on the size of its switching loss, and electric current
Difference directly affects its switching loss, to influence the junction temperature (junction temperature) of power electronic devices, in turn
Influence the service life of device.
Summary of the invention
The present invention improves motor control system to extend the modular event driven device service life of multiple-unit permanent magnet synchronous motor
The reliability of system provides a kind of active heat management side based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method
Method.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method, including such as
Lower step:
Step 1: each unit motor driver of permanent magnet synchronous motor modular event driven device is inverse by a three-phase voltage source
Become device to constitute, a temperature sensor is respectively placed on the radiator of each voltage source inverter of permanent magnet synchronous motor；
Step 2: each three-phase voltage source inverter of detection permanent magnet synchronous motor, obtains each three-phase voltage source inversion
The temperature sampling value T of devicecon1、Tcon2......Tconn, n is positive integer；
Step 3: the temperature sampling value obtained according to step 2, by active heat management algorithm, the driving high according to temperature
Device given frequency should lower principle, obtain the given PWM frequency f* for driving each three-phase voltage source inverters1、f
*s2......f*sn, in which: the principle of active heat management algorithm are as follows: calculate temperature averages Tconav, it is assumed that inverter temperature value
Size order is Tcon1> Tcon2> ... > Tconn, then the given PWM frequency of inverter should be f*s1< f*s2< ...
< f*sn；
Step 4: the motor operation operating condition moment is changing, so given general power p*dcAlso with operating condition variation and become
Change, obtains the reference voltage vector and PWM frequency Setting signal of each driver according to power of motor and given PWM frequency；
Step 5: the pwm signal of driving three-phase voltage source inverter is generated by space vector pulse width modulation, thus
Realize the active heat management of the modular event driven device of multiple-unit permanent magnet synchronous motor.
In the present invention, each unit motor driver is made of a three-phase voltage source inverter, when some inverter temperature
When spending high, so as to reduce the unit service life, the PWM frequency for driving the inverter is reduced, to reduce power device
The switching loss of part reduces the temperature of the inverter, realizes the permanent magnet synchronous motor modular event driven device master based on temperature detection
Dynamic heat management.
Compared with the prior art, the present invention has the advantage that
The present invention, by active heat management technology, reduces the service life minimum driving in multiple modular event driven devices
Energy and switching loss in device, to improve the service life of entire motor driver and the reliability of entire electric system.
Detailed description of the invention
Fig. 1 is the electrical connection diagram of nine phase permanent magnet synchronous motors；
Fig. 2 is based on the active heat management technical principle block diagram for becoming PWM frequency method；
Fig. 3 is the inverter temperature curve for not using proposition method of the present invention；
Fig. 4 is the inverter temperature curve using method proposed by the present invention.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawing, and however, it is not limited to this, all to this
Inventive technique scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
Within the protection scope of the present invention.
For having the nine phase permanent magnet synchronous motors there are three unit motor, the motor is driven to need three three-phase voltage sources
Inverter constitutes electrical connection diagram as shown in Figure 1.VdcIt is DC bus power supply, load motor has nine exits, constitutes tool
There are three the permanent magnet synchronous motors of unit electric machine structure, which is independently driven by three three-phase voltage source inverters, each inverse
Change device drives a unit of permanent magnet synchronous motor, three-phase output end A, B, C of inverter into a modularized motor driver
It connects on the three-phase windings of motor.
A temperature sensor is respectively placed on the radiator of three voltage source inverters, is driven for detecting each modularization
The temperature of dynamic device.Using temperature control driving inverter PWM signal frequency, when some driver when the temperature is excessively high, reduce should
Driver PWM signal frequency reduces its switching loss, to realize the active heat management of modular event driven device.
The present invention is based on the functional block diagram for the active heat management method for becoming PWM frequency method is as shown in Figure 2.Three are detected first
Three-phase voltage source inverter obtains sampled value Tcon1、Tcon2、Tcon3.Using active heat management algorithm, the drive high according to temperature
Dynamic device given frequency should lower principle, obtain the given PWM frequency f of three inverters of driving* s1、f* s2、f* s3.Motor fortune
The row operating condition moment is changing, so given general power p*dcAlso with operating condition variation and change, according to power of motor and given
PWM frequency obtains the reference voltage vector and PWM frequency Setting signal of each driver.Finally using space vector pulse width tune
Technology processed generates the pwm signal of driving three-phase voltage source inverter, to realize that the modularization of multiple-unit permanent magnet synchronous motor is driven
The active heat management of dynamic device.
As can be seen from figs. 3 and 4 the temperature using inverter 1 after method proposed by the present invention reduces.
Claims (2)
1. a kind of active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method, feature exist
In described method includes following steps:
Step 1: each unit motor driver of permanent magnet synchronous motor modular event driven device is by a three-phase voltage source inverter
It constitutes, a temperature sensor is respectively placed on the radiator of each voltage source inverter of permanent magnet synchronous motor；
Step 2: each three-phase voltage source inverter of detection permanent magnet synchronous motor, obtains each three-phase voltage source inverter
Temperature sampling value Tcon1、Tcon2......Tconn, n is positive integer；
Step 3: the temperature sampling value obtained according to step 2, by active heat management algorithm, the driver high according to temperature is given
Determine frequency should lower principle, obtain the given PWM frequency f* for driving each three-phase voltage source inverters1、f*s2......f*sn；
Step 4: according to power of motor and given PWM frequency obtain each driver reference voltage vector and PWM frequency it is given
Signal；
Step 5: the pwm signal of driving three-phase voltage source inverter is generated by space vector pulse width modulation, to realize
The active heat management of the modular event driven device of multiple-unit permanent magnet synchronous motor.
2. the active heat pipe according to claim 1 based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method
Reason method, it is characterised in that the principle of the active heat management algorithm are as follows: calculate temperature averages Tconav, it is assumed that inverter temperature
Value size order is Tcon1> Tcon2> ... > Tconn, then the given PWM frequency of inverter should be f*s1< f*s2
< ... < f*sn。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532961.XA CN110277953A (en) | 2019-06-19 | 2019-06-19 | Active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532961.XA CN110277953A (en) | 2019-06-19 | 2019-06-19 | Active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method |
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| Publication Number | Publication Date |
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| CN110277953A true CN110277953A (en) | 2019-09-24 |
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| CN201910532961.XA Pending CN110277953A (en) | 2019-06-19 | 2019-06-19 | Active heat management method based on the permanent magnet synchronous motor modular event driven device for becoming PWM frequency method |
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Citations (8)
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| JP2017060310A (en) * | 2015-09-16 | 2017-03-23 | 株式会社日本製鋼所 | Motor control method characterized by inverter protection method |
| CN206725112U (en) * | 2017-05-31 | 2017-12-08 | 成都亿伏科技有限公司 | The intelligent monitoring and controlling device of the shunt chopper of photovoltaic plant |
| CN107534393A (en) * | 2015-04-16 | 2018-01-02 | 维斯塔斯风力系统集团公司 | Wind turbine converter controls |
| US20180254734A1 (en) * | 2017-03-06 | 2018-09-06 | Denso Corporation | Rotary electric machine controller and electric power steering device using the same |
| CN109412497A (en) * | 2017-08-16 | 2019-03-01 | 福特全球技术公司 | Variable inverter output |
| CN109818367A (en) * | 2017-11-20 | 2019-05-28 | 太阳能安吉科技有限公司 | Location-aware is provided and improves the power quality of shunt chopper |
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2019
- 2019-06-19 CN CN201910532961.XA patent/CN110277953A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789707A (en) * | 2009-01-27 | 2010-07-28 | Abb公司 | The load balance of the inverter module that is connected in parallel |
| CN102710158A (en) * | 2010-12-21 | 2012-10-03 | 住友重机械工业株式会社 | Inverter device |
| CN107534393A (en) * | 2015-04-16 | 2018-01-02 | 维斯塔斯风力系统集团公司 | Wind turbine converter controls |
| JP2017060310A (en) * | 2015-09-16 | 2017-03-23 | 株式会社日本製鋼所 | Motor control method characterized by inverter protection method |
| US20180254734A1 (en) * | 2017-03-06 | 2018-09-06 | Denso Corporation | Rotary electric machine controller and electric power steering device using the same |
| CN206725112U (en) * | 2017-05-31 | 2017-12-08 | 成都亿伏科技有限公司 | The intelligent monitoring and controlling device of the shunt chopper of photovoltaic plant |
| CN109412497A (en) * | 2017-08-16 | 2019-03-01 | 福特全球技术公司 | Variable inverter output |
| CN109818367A (en) * | 2017-11-20 | 2019-05-28 | 太阳能安吉科技有限公司 | Location-aware is provided and improves the power quality of shunt chopper |
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