CN109995305A - Torque input control method, device, equipment and the refrigerator of compressor - Google Patents
Torque input control method, device, equipment and the refrigerator of compressor Download PDFInfo
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- CN109995305A CN109995305A CN201910348240.3A CN201910348240A CN109995305A CN 109995305 A CN109995305 A CN 109995305A CN 201910348240 A CN201910348240 A CN 201910348240A CN 109995305 A CN109995305 A CN 109995305A
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- compressor
- torque input
- input signal
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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
- H02P27/12—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 pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct torque control
Abstract
The embodiment of the invention discloses torque input control method, device, equipment and the refrigerators of a kind of compressor, which comprises locking phase is carried out to the alternating current of access, to obtain the phase information of the alternating current；The speed ring output of the compressor control system is obtained, the phase information according to speed ring output in conjunction with the alternating current forms torque input signal；The output of the inverter is adjusted, in conjunction with speed ring output according to the torque input signal to control the operation of the compressor.By the above method, compressor can be made to be in reliable and stable high-speed state, and the cost of frequency conversion board can be greatlyd save, improve products application value.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of torque input control method of compressor, device, equipment
And refrigerator.
Background technique
Freezer compressor mostly uses greatly traditional method for controlling frequency conversion at present, and the electrolytic capacitor of big capacitance is needed after rectification
DC bus-bar voltage is supported, and provides sufficiently high chopping voltage for inverter, the method is although relatively stable, but electrolytic capacitor
The cost is relatively high, is unfavorable for cost declining.In recent years, because electroless capacitor technology reliability, in terms of it is superior
Property, no electrolytic capacitor driven compressor system has become the research hotspot of domestic and international expert.
No electrolytic capacitor freezer compressor control method at this stage, mainly addition output power adjusts strategy, using standard
Ratio resonance (Quasi Proportion Resonant, QPR) controller makes power output have pulsation effect, offsets indirectly
The fluctuation of DC bus, but the control of this method is complex, needs auxiliary circuit and acquires the accuracy requirement of signal
Height, controllability are poor.
Summary of the invention
The embodiment of the present invention provides torque input control method, device, equipment and the refrigerator of a kind of compressor, can be promoted
Stability of the compressor when running at high speed, and reduce cost.
A kind of torque input control method of compressor is applied to compressor control system, the system comprises inverter,
For exporting electric energy to compressor；The described method includes:
Locking phase is carried out to the alternating current of access, to obtain the phase information of the alternating current；
The speed ring output for obtaining the compressor control system, according to speed ring output in conjunction with the phase of the alternating current
Position information forms torque input signal；
The output for adjusting the inverter in conjunction with speed ring output according to the torque input signal, described in control
The operation of compressor.
Optionally, the phase according to speed ring output in conjunction with the alternating current is believed in one of the embodiments,
Breath forms torque input signal, comprising:
According to the sinusoidal proportion function that the phase information of speed ring output and the alternating current is constituted, the torque is determined
Input signal.
Optionally, described according to speed ring output and the phase information of the alternating current in one of the embodiments,
The sinusoidal proportion function of composition determines the torque input signal, comprising:
According to formula:
M=Asin2(ωint+γ)
Determine the torque input signal, wherein M is torque input signal, and A is speed ring output gain, ωinT+ γ is
The phase information of alternating current, ωinFor network voltage angular frequency, γ is first phase.
Optionally, the compressor control system further includes controller in one of the embodiments,；
The output for adjusting the inverter in conjunction with speed ring output according to the torque input signal, comprising:
The torque input signal is input to the controller, is exported the speed ring and institute based on the controller
Torque input signal is stated to be coupled, it is given using the torque as electric current loop, and successively pass through electric current loop operation, transform operation
And space vector pulse width modulation controls the output of inverter, to control the operation of the compressor.
Optionally, in one of the embodiments, the method also includes:
The alternating current is converted into DC voltage after rectification circuit；
Busbar voltage is formed in conjunction with load according to the DC voltage, the busbar voltage for the inverter for providing
Chopping voltage.
A kind of torque input control device of compressor, comprising:
Phase obtains module, for carrying out locking phase to the alternating current of access, obtains the phase information of the alternating current；
Torque forms module, and the speed ring for obtaining compressor control system exports, and is exported and is tied according to the speed ring
The phase information for closing the alternating current forms torque input signal；
Adjustment module is exported, for exporting the output for adjusting inverter according to the torque input signal combination speed ring,
To control the operation of the compressor.
Optionally, the output adjustment module is specifically used in one of the embodiments:
The torque input signal is input to the controller, is exported the speed ring and institute based on the controller
Torque input signal is stated to be coupled, it is given using the torque as electric current loop, and successively pass through electric current loop operation, transform operation
And space vector pulse width modulation controls the output of inverter, to control the operation of the compressor.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of above-mentioned method is realized when computer program is executed by processor.
A kind of torque input control apparatus of compressor, including controller store computer program in the controller,
When the computer program is executed by the controller, so that the step of controller executes above-mentioned method.
A kind of refrigerator, the torque input control apparatus including above-mentioned compressor.
Implement the embodiment of the present invention, will have the following beneficial effects:
Torque input control method, device, equipment and the refrigerator of above-mentioned compressor, by being locked to the alternating current of access
Phase obtains the phase information of the alternating current；The speed ring output of the compressor control system is obtained, it is defeated according to the speed ring
Torque input signal is formed in conjunction with the phase information of the alternating current out；It is exported and is adjusted according to the torque input signal combination speed ring
The output of the inverter is saved, to control the operation of the compressor.The above method is by compressor control system input power
Square input signal makes power output have pulsation effect, can also make to compress in the case where the electrolytic capacitor of not big capacitance
Machine is in reliable and stable high-speed state, to guarantee the job stability of compressor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Wherein:
Fig. 1 is the flow chart of the torque input control method of compressor in one embodiment；
Fig. 2 is that one embodiment median generatrix capacitance size acts on big logotype to busbar voltage；
Fig. 3 is the structural schematic diagram of compressor control system in one embodiment；
Fig. 4 is that torque injects control block diagram in one embodiment；
Fig. 5 is the structural block diagram of the torque input control device of compressor in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that limitation the application.It is appreciated that term " first " used in this application, " second "
Etc. can be used to describe various elements herein, but these elements should not be limited by these terms.These terms are only used to by first
A element and another element are distinguished.For example, in the case where not departing from scope of the present application, journey can be applied by first
Sequence is known as the second application program, and similarly, can by second into application program be the first application program.First application program and
Two application programs both application program, but it is not same application.
Fig. 1 is the flow chart of the torque input control method of compressor in one embodiment, and this method is applied to compressor
Control system, more specifically, this method are applied to the compressor control system of no electrolytic capacitor.It such as can be the compression of refrigerator
Machine control system, it is to be understood that the compressor control system of other electric appliances can also be applied in some embodiments, such as
The compressor control system of air-conditioning.The system includes inverter, for exporting electric energy to the compressor, specifically, inverter
Direct current energy can be converted to AC energy, three-phase alternating current can be provided to compressor.Compressor provided in this embodiment
Torque input control method, stability of the compressor when running at high speed can be promoted, and reduce cost.As shown in Figure 1,
102~step 106 that this approach includes the following steps:
Step 102: locking phase being carried out to the alternating current of access, obtains the phase information of the alternating current.
, can commonly using three amounts and characterize with alternating current specifically, alternating current refers to industrial-frequency alternating current: voltage, electric current,
Frequency；The alternating current of this implementation refers to the alternating current of 220V/50Hz.Locking phase refers to that the phase for making controlled oscillator is believed by standard
Number or extraneous signal control a kind of technology, for realize with extraneous signal Phase synchronization, or tracking extraneous signal frequency or
Phase.The present embodiment obtains the information such as the frequency of alternating current, phase by Phase Lock Technique, by carrying out locking phase to alternating current, obtains
The useful phase information of alternating current, in order to carry out the construction of torque.
Step 104: obtaining the speed ring output of the compressor control system, exported according to the speed ring in conjunction with described
The phase information of alternating current forms torque input signal.
Wherein, compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is transported by motor
Turn after being compressed with piston to it, to the refrigerant gas of exhaust pipe discharge high temperature and pressure, provides power for refrigeration cycle.
Speed ring refers to a ring of the servo motor motion control in compressor machine control system, and speed ring is by by input value and speed
Difference after degree ring value of feedback is compared is proportional integral derivative (Proportion Integration in speed ring
Differentiation, PID) adjust after be output to the electric current loop of compressor control system.
The present embodiment exports the phase information formation torque input signal in conjunction with the alternating current according to the speed ring.Specifically
, the sinusoidal proportion function constituted with the phase information of the alternating current can be exported according to speed ring, determine the torque input
Signal.For example, the gain by speed ring output as sinusoidal proportion function, using the phase information of alternating current as sinusoidal proportion function
Phase, torque input signal is calculated by the sine proportion function.
Step 106: adjusting the output of the inverter, according to torque input signal combination speed ring output with control
The operation of the compressor.
Specifically, since speed ring is exported after PID is adjusted to electric current loop, the input value of electric current loop and the feedback of electric current loop
Difference after value is compared does PID adjusting output to motor in electric current loop, and the present embodiment is by increasing torque input signal
It adds among speed ring and electric current loop, the error of given speed and feedback speed passes through speed ring, and speed ring output is infused with torque
Enter signal be coupled as electric current loop torque it is given, successively pass through electric current loop operation, transform operation and space vector pulse width
(Space Vector Pulse Width Modulation, SVPWM) is modulated to control the output of inverter, described in control
The operation of compressor.
The torque input control method of above-mentioned compressor obtains the alternating current by carrying out locking phase to the alternating current of access
Phase information；The speed ring output for obtaining the compressor control system, exports according to the speed ring in conjunction with the alternating current
Phase information forms torque input signal；The defeated of the inverter is adjusted according to torque input signal combination speed ring output
Out, to control the operation of the compressor.The above method is defeated by the compressor control system input torque to no electrolytic capacitor
Enter signal, makes power output that there is pulsation effect, can also make at compressor in the case where the electrolytic capacitor of not big capacitance
In reliable and stable high-speed state, to guarantee the job stability of compressor.
In one embodiment, the torque input control method of the compressor further include: the alternating current is passed through into rectified current
DC voltage is converted to behind road；Busbar voltage is formed in conjunction with load according to the DC voltage, the busbar voltage is for providing
Copped wave is carried out to the inverter.
Wherein copped wave refers to the process that direct current is become to the direct current of another fixed voltage or adjustable voltage.Specifically
, alternating current converts alternating current to direct current by rectification circuit, and forms busbar voltage after band carries, the busbar voltage
For providing chopping voltage to inverter.
Due to not big electrolytic capacitor, so there are pulsatile characteristics with busbar voltage is formed after load, as shown in Fig. 2, when electricity
After machine operating, the not support of big capacity electrolyte capacitor, busbar voltage can be fluctuated with the work frequency of 2 frequencys multiplication, with bus electricity
The capacitance of appearance becomes smaller, and this ripple amplitude of bus will be more obvious.The present embodiment is by increasing torque input signal to defeated
It being adjusted out, control motor output torque pulses to compensate the pulsation of busbar voltage, and make power output that there is pulsation effect,
Connect the fluctuation for offsetting DC bus.
In one embodiment, the speed ring output for obtaining compressor control system, exports according to the speed ring
Phase information in conjunction with the alternating current forms torque input signal namely step 104 includes: according to speed ring output and the city
The sinusoidal proportion function that the phase information of electricity is constituted, determines the torque input signal.
Specifically, since busbar voltage has pulsatile characteristics, it is assumed that, can be to input work under conditions of power factor is 1
Rate, dc-link capacitance power, output power inverter are derived.
Wherein, input power can indicate are as follows:
Pin=uin*iin=Uinsinωint*Iin sinωinT=UinIin sin2ωint
Wherein, PinIndicate input power, uinIndicate input voltage, UinIndicate input voltage amplitude, iinIndicate input electricity
Stream, IinIndicate input current amplitude, ωinIndicate network voltage angular frequency.
Dc-link capacitance power can indicate are as follows:
Pdc=udc*idc=Uinsinωint*ωinCdcUincosωinT=0.5 ωinCdcUin 2sin2ωint
Wherein, PdcIndicate dc-link capacitance power, udcIndicate DC bus-bar voltage, idcIndicate DC bus current, Uin
Indicate input voltage amplitude, ωinIndicate network voltage angular frequency, CdcIndicate bus capacitor capacitance.
Output power inverter can indicate are as follows:
Pinv=Pin-Pdc=(UinIin-0.5ωinCdcUin 2)sin2ωint
Wherein, PinvIndicate output power inverter, PinIndicate input power, PdcIndicate dc-link capacitance power, UinTable
Show input voltage amplitude, IinIndicate input current amplitude, ωinIndicate network voltage angular frequency, CdcIndicate bus capacitor capacitance.
As shown from the above formula, output power inverter is the frequency fluctuation of 2 double frequency powers, in order to reduce auxiliary circuit, letter
Change software flow and products application is facilitated to develop, torque can be constructed according to above-mentioned rule, it specifically can be according to the following formula
Construct torque:
M=Asin2(ωint+γ)
Wherein, M is torque input signal, and A is speed ring output gain, ωinT+ γ is the phase information of alternating current, ωinFor
Network voltage angular frequency, γ are first phase.
In one embodiment, described that the inverter is adjusted according to torque input signal combination speed ring output
Output namely step 106 further include: the torque input signal is input to controller, is based on the controller for the speed
The output of degree ring and the torque that the torque input signal be coupled as electric current loop are given, and control after electric current loop operation
The operation of the compressor.
Specifically, as shown in figure 3, being the structural schematic diagram of compressor control system in one embodiment, compressor control
System further includes noninductive Field orientable control (Field-Oriented Control, FOC) controller, also referred to as vector converter, can
For controlling brshless DC motor (BLDC) and permanent magnet synchronous motor (PMSM), FOC can accurately control magnetic field size and side
To so that motor torque is steady, noise is small, high-efficient, and the dynamic response with high speed.The present embodiment is by by the power
Square input signal is input to the noninductive FOC controller, based on the noninductive FOC controller by the speed ring export with it is described
The torque that torque input signal be coupled as electric current loop is given, and the fortune of the compressor is controlled after electric current loop operation
Row.
Further, controller by being sampled to three-phase current, speed ring, electric current loop, torque injection comprehensively control output
Pwm signal controls the on-off of inverter switching device pipe and then controls the operation of compressor.
Wherein, electric current loop refers to current feedback system, is that will export electric current to connect by the way of positive feedback or negative-feedback
The method for entering processing links, for improving the performance of system by the stability for improving electric current.Inverse transformation refers to passing through
Image point is become primary image point, the process of another special relevant transformation therewith is converted to relative to a transformation.What SVPWM referred to
It is with three-phase symmetrical motor stator sub-ideal magnetic linkage circle when the power supply of three-phase symmetrical sine voltage for reference standard, with three-phase inversion
Device difference switching mode makees switching appropriate, to form PWM wave, tracks its accurate magnetic to be formed by practical flux linkage vector
Chain circle.
For example, as shown in figure 4, injecting control block diagram, bicyclic use in the present embodiment for torque in one embodiment
The position of PI controller, torque injection is among speed ring and electric current loop, and the error of given speed and feedback speed is through overrunning
Spend ring, speed ring output and the torque that torque Injection Signal is coupled as electric current loop are given, successively by electric current loop, inverse transformation,
The several links of SVPWM control the output of inverter.
The torque input control method of above-mentioned compressor passes through the compressor control system input torque to no electrolytic capacitor
Input signal makes power output have pulsation effect, compressor can be made to be in reliable and stable high-speed state, and pass through
Using the control mode of no electrolytic capacitor, the cost of frequency conversion board can be greatlyd save, improves products application value.
As shown in figure 5, in one embodiment, a kind of torque input control device of compressor is provided, the device packet
It includes phase and obtains module 510, torque formation module 520, output adjustment module 530.
Phase obtains module 510, for carrying out locking phase to the alternating current of access, obtains the phase information of the alternating current.
Torque forms module 520, and the speed ring for obtaining compressor control system exports, and is exported according to the speed ring
Torque input signal is formed in conjunction with the phase information of the alternating current.
Adjustment module 530 is exported, adjusts the defeated of inverter for exporting according to the torque input signal combination speed ring
Out, to control the operation of the compressor.
The torque input control device of above-mentioned compressor obtains the alternating current by carrying out locking phase to the alternating current of access
Phase information；The speed ring output for obtaining the compressor control system, exports according to the speed ring in conjunction with the alternating current
Phase information forms torque input signal；The defeated of the inverter is adjusted according to torque input signal combination speed ring output
Out, to control the operation of the compressor.By above-mentioned apparatus, the compressor control system input torque to no electrolytic capacitor is defeated
Enter signal, makes power output that there is pulsation effect, can also make at compressor in the case where the electrolytic capacitor of not big capacitance
In reliable and stable high-speed state, to guarantee the job stability of compressor.
Specific restriction about the torque input control device based on compressor may refer to above for compressor
The restriction of torque input control method, details are not described herein.It is each in the above-mentioned torque input control device based on compressor
Module can be realized fully or partially through software, hardware and combinations thereof.Above-mentioned each module can be embedded in or solely in the form of hardware
It stands in the processor in computer equipment, can also be stored in a software form in the memory in computer equipment, so as to
It is called in processor and executes the corresponding operation of the above modules.
The realization of the modules in the torque input control device based on compressor provided in the embodiment of the present application can
For the form of computer program.The computer program can be run in terminal or server.The program that the computer program is constituted
Module is storable on the memory of terminal or server.When the computer program is executed by processor, realize that the application is implemented
The step of torque input control method of compressor described in example.
The embodiment of the present application also provides a kind of computer readable storage mediums.One or more is executable comprising computer
The non-volatile computer readable storage medium storing program for executing of instruction, when the computer executable instructions are executed by one or more processors
When, so that the processor executes the torque input control method of the compressor as described in the various embodiments described above.
The embodiment of the present application also provides a kind of computer program products.A kind of computer program product comprising instruction,
When run on a computer, so that computer executes the torque input control of compressor described in the various embodiments described above
Method.
The embodiment of the present application also provides a kind of torque input control apparatus of compressor, which includes controller, institute
It states and stores computer program in controller, when the computer program is executed by the controller, so that the controller is held
The torque input control method of row compressor as described in the various embodiments described above.
The embodiment of the present application also provides a kind of refrigerator, which includes the torque input control apparatus of compressor, the ice
The torque input control apparatus that case passes through the compressor at runtime executes the compressor as described in the various embodiments described above
Torque input control method.
In the above-described embodiments, can it is all or part of by software, hardware, firmware or any combination thereof come real
It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer
Program product includes one or more computer instructions.When loading on computers and executing the computer program instructions, entirely
Portion is partly generated according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, specially
With computer, computer network or other programmable devices.The computer instruction can store in computer-readable storage
In medium, or from a computer readable storage medium to another computer readable storage medium transmit.The computer
Readable storage medium storing program for executing can be any usable medium or include one or more usable medium collection that computer can access
At the data storage devices such as server, data center.The usable medium can be magnetic medium, (for example, floppy disk, hard disk,
Tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD)) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of torque input control method of compressor is applied to compressor control system, the system comprises inverters, use
In to compressor export electric energy；It is characterized in that, which comprises
Locking phase is carried out to the alternating current of access, to obtain the phase information of the alternating current；
The speed ring output of the compressor control system is obtained, the phase according to speed ring output in conjunction with the alternating current is believed
Breath forms torque input signal；
The output of the inverter is adjusted, in conjunction with speed ring output according to the torque input signal to control the compression
The operation of machine.
2. the method according to claim 1, wherein described export according to the speed ring in conjunction with the alternating current
Phase information forms torque input signal, comprising:
According to the sinusoidal proportion function that the phase information of speed ring output and the alternating current is constituted, the torque input is determined
Signal.
3. according to the method described in claim 2, it is characterized in that, the phase according to speed ring output and the alternating current
The sinusoidal proportion function that position information is constituted, determines the torque input signal, comprising:
According to formula:
M=Asin2(ωint+γ)
Determine the torque input signal, wherein M is torque input signal, and A is speed ring output gain, ωinT+ γ is alternating current
Phase information, ωinFor network voltage angular frequency, γ is first phase.
4. the method according to claim 1, wherein the compressor control system further includes controller；
The output for adjusting the inverter in conjunction with speed ring output according to the torque input signal, comprising:
The torque input signal is input to the controller, is exported the speed ring and the power based on the controller
Square input signal is coupled, given using the torque as electric current loop, and successively by electric current loop operation, transform operation and
Space vector pulse width modulation controls the output of inverter, to control the operation of the compressor.
5. the method according to claim 1, wherein the method also includes:
The alternating current is converted into DC voltage after rectification circuit；
Busbar voltage is formed in conjunction with load according to the DC voltage, the busbar voltage is used to provide copped wave for the inverter
Voltage.
6. a kind of torque input control device of compressor characterized by comprising
Phase obtains module, for carrying out locking phase to the alternating current of access, obtains the phase information of the alternating current；
Torque forms module, and the speed ring for obtaining compressor control system exports, and combines institute according to speed ring output
The phase information for stating alternating current forms torque input signal；
Adjustment module is exported, for exporting the output for adjusting inverter according to the torque input signal combination speed ring, with control
Make the operation of the compressor.
7. device according to claim 6, which is characterized in that the output adjustment module is specifically used for:
The torque input signal is input to the controller, is exported the speed ring and the power based on the controller
Square input signal is coupled, given using the torque as electric current loop, and successively by electric current loop operation, transform operation and
Space vector pulse width modulation controls the output of inverter, to control the operation of the compressor.
8. a kind of computer readable storage medium, computer program, feature are stored on the computer readable storage medium
The step of being, the method as described in any one of claims 1 to 5 realized when the computer program is executed by processor.
9. a kind of torque input control apparatus of compressor, which is characterized in that including controller, meter is stored in the controller
Calculation machine program, when the computer program is executed by the controller, so that the controller is executed as in claim 1 to 5
The step of described in any item methods.
10. a kind of refrigerator, which is characterized in that the torque input control apparatus including compressor as claimed in claim 9.
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| CN103314513A (en) * | 2011-01-18 | 2013-09-18 | 大金工业株式会社 | Power conversion device |
| US20140028237A1 (en) * | 2012-07-25 | 2014-01-30 | Snu R&Db Foundation | Inverter control apparatus and control method thereof |
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| CN105577060A (en) * | 2016-01-08 | 2016-05-11 | 清华大学 | Alternating current motor driving control system and control method capable of lowering direct current side capacitance |
| CN106208868A (en) * | 2016-07-13 | 2016-12-07 | 广东美的制冷设备有限公司 | No electrolytic capacitor motor driven systems and control method, device |
| WO2019039168A1 (en) * | 2017-08-24 | 2019-02-28 | サンデンホールディングス株式会社 | Power conversion device |
| CN109004883A (en) * | 2018-09-04 | 2018-12-14 | 深圳市锐钜科技有限公司 | A kind of busbar voltage low-pressure area control method of small capacitances motor driven systems |
| CN109546913A (en) * | 2018-12-24 | 2019-03-29 | 哈尔滨工业大学 | A kind of capacitor miniaturization motor driver |
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