CN108023528A - The dynamic energy-saving speed regulating method and system of permasyn morot - Google Patents

The dynamic energy-saving speed regulating method and system of permasyn morot Download PDF

Info

Publication number
CN108023528A
CN108023528A CN201610972573.XA CN201610972573A CN108023528A CN 108023528 A CN108023528 A CN 108023528A CN 201610972573 A CN201610972573 A CN 201610972573A CN 108023528 A CN108023528 A CN 108023528A
Authority
CN
China
Prior art keywords
frequency
output
voltage
module
desired output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610972573.XA
Other languages
Chinese (zh)
Other versions
CN108023528B (en
Inventor
雷淮刚
廖原
卢广震
邓智
王小兵
邓伟湧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Rujing Technology Co.,Ltd.
Original Assignee
Shanghai Ruking Electronic Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Ruking Electronic Science & Technology Co Ltd filed Critical Shanghai Ruking Electronic Science & Technology Co Ltd
Priority to CN201610972573.XA priority Critical patent/CN108023528B/en
Publication of CN108023528A publication Critical patent/CN108023528A/en
Application granted granted Critical
Publication of CN108023528B publication Critical patent/CN108023528B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H02P27/085—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 wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

The dynamic energy-saving speed regulating method and system of permasyn morot, including：Obtain the real-time desired output frequency of permanent magnet synchronous motor；Compare real-time desired output frequency and default reference frequency output；If desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；It is expectation output voltage by the output voltage setting of active power factor adjuster maximum if desired output frequency is higher than the reference frequency output of active power factor adjuster；It is expectation output voltage by the minimum output voltage setting of active power correction if desired output frequency is less than the reference frequency output of active power factor adjuster；The flex point information of the voltage frequency characteristics of permanent magnet synchronous motor is updated according to desired output voltage.

Description

The dynamic energy-saving speed regulating method and system of permasyn morot
Technical field
The present invention relates to one kind, more particularly to the dynamic energy-saving adjusting method and system of a kind of permanent magnet synchronous motor.
Background technology
Existing permanent magnet synchronous motor is the most important component of air-conditioning, and traditional constant speed permanent magnet synchronous motor electric energy loss, Indoor temperature fluctuation and noise are bigger, therefore permanent magnet synchronous motor gradually instead of tradition and determine frequency constant speed permanent magnet synchronous motor, it makes Compressor on-off frequency is reduced, comfort level increase, room temperature regulating effect and effects of energy saving and emission reduction, which have, largely to be lifted. Paper《SVPWM (Space Vector Pulse Width Modulation, space vector pulsewidth tune based on fuzzy control System) application of the technology in permanent magnet synchronous motor frequency control》Point out, advanced space vector modulation (SVPWM) mode can According to room temperature, the refrigerating capacity of permanent magnet synchronous motor is adjusted continuously, dynamically, in realtime, remains at rational operating shape Under state.But the frequency control that this article is carried only carries out on a voltage-frequency characteristic curve, and existing research channel syndrome Bright, at the flex point of permanent torque state and invariable power state, the efficiency of permanent magnet synchronous motor is highest, therefore the paper is carried SVPWM permanent magnet synchronous motor variable-frequency control techniques, still have much room for improvement.Found by the retrieval to the prior art, at present forever It is less using the research of VVVF speed regulation method in magnetic-synchro motor, the dynamic for the permanent magnet synchronous motor that patent of the present invention proposes Energy saving adjusting method compensate for this blank, takes full advantage of the output voltage regulating power of active power factor adjuster, makes Permanent magnet synchronous motor can realize efficiency operation in wide scope.
To sum up, the speed regulating method of the permanent magnet synchronous motor disclosed in the prior art does not have the technical characteristic of dynamic regulation, Can not effectively automatic adjusument permanent magnet synchronous motor power and the speed of service, do not utilize the defeated of active power factor adjuster Go out voltage regulation capability, the permanent magnet synchronous motor in conventional art can realize that the work efficiency in wide scope needs further to be carried It is high.
The content of the invention
In view of the shortcomings that above prior art, not solving in the prior art can not effectively automatic adjusument permanent magnet synchronous electric The power of machine and the technical problem of the speed of service, it is an object of the invention to provide a kind of dynamic energy-saving tune of permanent magnet synchronous motor Section method, including：S1, the real-time desired output frequency for obtaining permanent magnet synchronous motor；S2, the real-time desired output frequency of comparison with it is pre- If reference frequency output；If S3, desired output frequency are in active power factor adjuster reference frequency output, dynamic regulation Output voltage；If S4, desired output frequency be higher than active power factor adjuster reference frequency output, by active power because The output voltage setting of number adjuster maximum is expectation output voltage；If S5, desired output frequency are less than active power factor tune The reference frequency output of device is saved, then is expectation output voltage by the minimum output voltage setting of active power correction；S6, basis The flex point information of the voltage-frequency characteristic of desired output voltage renewal permanent magnet synchronous motor.
In one embodiment of the present invention, the endpoints thereof of active power factor adjuster reference frequency output is defeated for highest Go out fundamental frequency and minimum output fundamental frequency；S2, the real-time desired output frequency of comparison and active power factor adjuster reference frequency output, Including：S21, judge whether desired output frequency is more than highest output fundamental frequency；S22, if so, then draw judging result for it is expected Output frequency is higher than the reference frequency output of active power factor adjuster；S23, if it is not, whether then judging desired output frequency More than minimum output fundamental frequency；If S24, the desired output frequency are more than the minimum output fundamental frequency, show that judging result is Desired output frequency is in active power factor adjuster reference frequency output；If S25, the desired output frequency are not more than institute Minimum output fundamental frequency is stated, then draws judging result it is expected that output frequency is less than the output frequency model of active power factor adjuster Enclose.
In one embodiment of the present invention, if S3, the desired output frequency are in the active power factor tune Save in device reference frequency output, then dynamic regulation output voltage, including：S31, execution inverter output voltage and frequency relation are looked into List procedure, the output voltage for obtaining power factor correction circuit are tabled look-up value；S32, value of being tabled look-up according to the output voltage, working voltage phase Prestige value udc calculation procedures, it is defeated to obtain APFC (Active Power Factor Correction, active power correction parameter) Go out voltage desired value.
In one embodiment of the present invention, S6, determined according to desired output voltage the new voltage of permanent magnet synchronous motor- The flex point information of frequency characteristic, including：S61, call vector speed governing program, obtains desired output component of voltage；S62, call directly Voltage detecting program is flowed, obtains the instantaneous value of DC voltage；S63, the wink according to desired output component of voltage and DC voltage When be worth to flex point information.
In one embodiment of the present invention, further include：S71, according to flex point information calculate acquisition modulation degree in real time；S72、 Operated inverter SVPWM modulation algorithm executive programs, according to desired output voltage, the instantaneous value of DC voltage and modulation degree, into Row Frequency-variable Modulation.
In one embodiment of the present invention, a kind of dynamic energy-saving regulating system of permanent magnet synchronous motor, it is characterised in that For improving work efficiency of the permanent magnet synchronous motor in permanent torque partial routine and invariable power partial routine, including：It is expected frequency Rate acquisition module, frequency comparison module, the first adjustment module, the second adjustment module, the 3rd adjustment module, flex point acquisition of information mould Block；Expected frequency acquisition module, for obtaining the real-time desired output frequency of permanent magnet synchronous motor；Frequency comparison module, is used for Judge more real-time desired output frequency and active power factor adjuster reference frequency output；First adjustment module, for When desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；Second adjusts mould Block, for desired output frequency be higher than active power factor adjuster reference frequency output when, by active power factor tune The output voltage setting for saving device maximum is expectation output voltage；3rd adjustment module, it is active for being less than in desired output frequency It is desired output electricity by output voltage setting minimum in default correction factor during the reference frequency output of power-factor regulator Pressure；Flex point data obtaining module, for determining according to desired output voltage the new voltage-frequency characteristic of permanent magnet synchronous motor Flex point information.
In one embodiment of the present invention, frequency comparison module, including：Upper limit judgment module, the first judging result are defeated Go out module, lower limit judgment module, the second judging result output module and the 3rd judging result output module；Upper limit judgment module, For judging whether desired output frequency is more than highest output fundamental frequency；First judging result output module, in desired output When frequency is more than highest output fundamental frequency, judging result is drawn it is expected that output frequency is higher than the output of active power factor adjuster Frequency range；Lower limit judgment module, for when desired output frequency is less than highest output fundamental frequency, judging that desired output frequency is It is no to be more than minimum output fundamental frequency；Second judging result output module, it is described minimum defeated for being more than in the desired output frequency Go out fundamental frequency and when the lower limit judgment module judges that the desired output frequency is less than highest output fundamental frequency, draw judgement knot Fruit is expectation output frequency in active power factor adjuster reference frequency output；3rd judging result output module, is used for When desired output frequency is less than minimum output fundamental frequency, judging result is drawn it is expected that output frequency is less than active power factor tune Save the reference frequency output of device.
In one embodiment of the present invention, the first adjustment module, including：Voltage table look-up module, voltage desired value module； Voltage table look-up module, for performing inverter output voltage and frequency relation look-up routine, obtains the output of power factor correction circuit Voltage is tabled look-up value；Voltage desired value module, for being tabled look-up value according to output voltage, working voltage desired value udc calculation procedures, obtain To the output voltage desired value of power factor correction circuit.
In one embodiment of the present invention, flex point data obtaining module, including：Vector speed adjusting module, DC voltage inspection Survey module,；Vector speed adjusting module, for calling vector speed governing program, obtains desired output component of voltage；DC voltage detects mould Block, for calling DC voltage to detect program, obtains the instantaneous value of DC voltage；Flex point acquisition module, for according to expectation Output voltage component and the instantaneous of DC voltage are worth to flex point information.
In one embodiment of the present invention, make-and-break time acquisition module, the make-and-break time acquisition module includes：Modulation Spend computing module and modulation algorithm execution module；Modulation degree computing module, is modulated for being calculated in real time according to flex point information Degree；Modulation algorithm execution module, for operated inverter SVPWM modulation algorithm executive programs, according to the desired output voltage, The instantaneous value of the DC voltage and the modulation degree, carry out Frequency-variable Modulation.
As described above, the dynamic energy-saving adjusting method and system of a kind of permanent magnet synchronous motor provided by the invention, have with Lower beneficial effect：
The present invention discloses a kind of dynamic energy-saving adjusting method of permanent magnet synchronous motor, and this method is electromechanical with permanent magnet synchronous electric Based on pressure-frequency characteristic, desired output frequency is calculated in real time, when expectation output voltage is in active power factor adjuster When in (APFC) output voltage range, dynamic regulation output voltage udc, permanent magnet synchronous motor is always worked in permanent torque state At the flex point of invariable power state, ensure the efficient energy conversion of permanent magnet synchronous motor.The speed regulating method of the present invention can fill Divide the output voltage using APFC, permanent magnet synchronous motor can realize the efficiency operation in wide frequency ranges, solve permanent magnetism Low efficiency problem of the synchronous motor in permanent torque partial routine and invariable power partial routine；This method clear logic, control letter The application that list is it in Permanent-magnet Synchronous-motor Speed Servo System provides guarantee, and solving in the prior art can not effectively certainly Adapt to adjust the power of permanent magnet synchronous motor and the technical problem of the speed of service.
Brief description of the drawings
Fig. 1 is shown as a kind of dynamic energy-saving adjusting method step schematic diagram of permanent magnet synchronous motor of the present invention.
Fig. 2 is shown as the desired output frequency of the present invention and default reference frequency output comparison step schematic diagram.
Fig. 3 is shown as the dynamic regulation output voltage step schematic diagram of the present invention.
Fig. 4 is shown as the flex point information updating step schematic diagram of the present invention.
Fig. 5 is shown as the Frequency-variable Modulation step schematic diagram of the present invention.
Fig. 6 is shown as a kind of dynamic energy-saving governing system module diagram of permanent magnet synchronous motor of the present invention.
Fig. 7 is shown as the frequency comparison module schematic diagram of the present invention.
Fig. 8 is shown as the first adjustment module schematic diagram of the present invention.
Fig. 9 is shown as the flex point data obtaining module schematic diagram of the present invention.
Figure 10 is shown as the logical section time-obtaining module schematic diagram of the present invention.
Component label instructions
A kind of dynamic energy-saving regulating system of 1 permanent magnet synchronous motor
11 expected frequency acquisition modules
12 frequency comparison modules
Adjustment module in 13 frequency ranges
14 are higher than scope adjustment module
15 are less than scope adjustment module
16 flex point data obtaining modules
17 make-and-break time acquisition modules
121 limit judgment modules
122 are more than upper limit module
123 lower limit judgment modules
124 scope internal modules
125 are less than lower limit module
131 voltage table look-up modules
132 voltage desired value modules
161 vector speed adjusting modules
162 DC voltage detection modules
163 flex point acquisition modules
171 modulation degree computing modules
172 modulation algorithm execution modules
Step numbers explanation
Fig. 1 S1~S6
Fig. 2 S21~S25
Fig. 3 S31~S32
Fig. 4 S61~S63
Fig. 5 S71~S72
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book understands other advantages and effect of the present invention easily.
Please refer to Fig.1 to Figure 10, it should however be clear that the structure depicted in this specification institute accompanying drawings, only coordinating specification Revealed content, so that those skilled in the art understands and reads, is not limited to the enforceable restriction bar of the present invention Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, are not influencing Under the effect of present invention can be generated and the purpose that can reach, should all still fall can contain in disclosed technology contents In the range of lid.Meanwhile in this specification it is cited such as " on ", " under ", " left side ", " right side ", " centre " and " one " term, Understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the present invention, its relativeness is altered or modified, Changed without essence under technology contents, when being also considered as the enforceable category of the present invention.
Referring to Fig. 1, it is shown as a kind of dynamic energy-saving speed regulating method step signal of frequency converting air-conditioner compressor of the present invention Figure, as shown in Figure 1, it is an object of the invention to provide a kind of dynamic energy-saving adjusting method of permanent magnet synchronous motor, including：S1、 Obtain the real-time desired output frequency of permanent magnet synchronous motor, it is preferred that after program starts execution, calculated into desired output frequency Program, obtains desired output frequency fo；S2, the real-time desired output frequency of comparison and default reference frequency output, it is preferred that it is expected The output terminal of output frequency calculation procedure is connected with desired output upper frequency limit determining program；If S3, desired output frequency are having In active power factor adjuster reference frequency output, then dynamic regulation output voltage；If S4, desired output frequency are higher than active work( The reference frequency output of rate factor adjuster, then be desired output by the output voltage setting of active power factor adjuster maximum Voltage, it is preferred that if it is desire to output frequency foMore than highest output fundamental frequency fbmax, then into APFC (Active Power Factor Correction, active power correction parameter) maximum output voltage set program, set APFC output voltages be Highest Udcmax；If S5, desired output frequency are less than the reference frequency output of active power factor adjuster, by active power The minimum output voltage setting of correction is expectation output voltage, it is preferred that into APFC minimum output voltages, program is set, if It is minimum U to put APFC output voltagesdcmin；S6, APFC output voltage desired value udcThe output terminal of operation program and vector speed governing Program is connected, and the execution of the program can obtain desired output component of voltage VαWith Vβ, it is same that permanent magnetism is updated according to desired output voltage Walk the flex point information of the voltage-frequency characteristic of motor.
Referring to Fig. 2, the desired output frequency of the present invention and default reference frequency output comparison step schematic diagram are shown as, As shown in Fig. 2, the endpoints thereof of active power factor adjuster reference frequency output exports fundamental frequency and minimum output base for highest Frequently；S2, the real-time desired output frequency of comparison and active power factor adjuster reference frequency output, including：S21, judge it is expected Whether output frequency is more than highest output fundamental frequency；S22, if so, then draw judging result for it is expected output frequency be higher than active work( The reference frequency output of rate factor adjuster, it is preferred that if it is desire to output frequency foMore than highest output fundamental frequency fbmax, then into Enter APFC maximum output voltages and program is set, it is highest U to set APFC output voltagesdcmax；S23, if it is not, then judging desired output Whether frequency is more than minimum output fundamental frequency, it is preferred that desired output frequency foMore than highest output fundamental frequency fbmaxBe judged as NO, Into desired output lower-frequency limit determining program, if it is desired to output frequency foLess than minimum output fundamental frequency fbmin, then into APFC Minimum output voltage sets program, and it is minimum U to set APFC output voltagesdcmin；If S24, the desired output frequency are more than The minimum output fundamental frequency, then draw judging result it is expected output frequency in active power factor adjuster reference frequency output It is interior, it is preferred that desired output frequency foLess than minimum output fundamental frequency fbmaxBe judged as NO, perform inverter output voltage with frequency Rate relation look-up routine, obtains APFC output voltages and tables look-up value udc；If S25, the desired output frequency are no more than described minimum Fundamental frequency is exported, then draws judging result it is expected that output frequency is less than the reference frequency output of active power factor adjuster, it is excellent Choosing, if it is desired to output frequency foLess than minimum output fundamental frequency fbmin, then program is set into APFC minimum output voltages, if It is minimum U to put APFC output voltagesdcmin。
Referring to Fig. 3, the dynamic regulation output voltage step schematic diagram of the present invention is shown as, as shown in figure 3, S3, described If the desired output frequency is in the active power factor adjuster reference frequency output, dynamic regulation output voltage, Including：S31, execution inverter output voltage and frequency relation look-up routine, the output voltage for obtaining power factor correction circuit are tabled look-up Value, it is preferred that the output terminal and APFC output voltage desired values u of inverter output voltage and frequency relation look-up routinedcCalculate Program is connected, and obtains APFC output voltage desired values udc；S32, value of being tabled look-up according to the output voltage, working voltage desired value Udc calculation procedures, obtain APFC output voltage desired values, APFC output voltage desired values udcThe output terminal of calculation procedure with APFC output voltage desired values udcOperation program is connected so that the output voltage stabilization of APFC is in desired value.
Referring to Fig. 4, be shown as the present invention flex point information updating step schematic diagram, as shown in figure 4, S6, according to expectation Output voltage determines the flex point information of the new voltage-frequency characteristic of permanent magnet synchronous motor, including：S61, call vector speed governing journey Sequence, obtains desired output component of voltage, it is preferred that APFC output voltage desired values udcThe output terminal of operation program and vector speed governing Program is connected, and the execution of the program can obtain desired output component of voltage VαWith Vβ；S62, call DC voltage detection program, Preferably, the output terminal of vector speed governing program is connected with DC voltage detection program, obtains the instantaneous value of DC voltage；S63、 Flex point information is worth to according to desired output component of voltage and the instantaneous of DC voltage, it is preferred that inverter SVPWM (Space Vector Pulse Width Modulation, space vector pulse width modulation) modulation degree m calculation procedures output terminal with it is inverse Become device SVPWM modulation algorithm executive programs to be connected, according to the desired output voltage, DC voltage instantaneous value and tune being calculated System m, carries out Frequency-variable Modulation, and a cycle period terminates, and return starts, and carries out the calculating of next cycle.
Referring to Fig. 5, Frequency-variable Modulation step schematic diagram, as shown in figure 5, further including：S71, count according to flex point information in real time Calculate and obtain modulation degree, preferential, the modulation degree m calculation procedure phases of the output terminal and inverter SVPWM of DC voltage detection program Even, acquisition modulation degree is calculated according to the expectation voltage of the instantaneous value of DC voltage and permanent magnet synchronous motor in real time；S72, operation are inverse Become device SVPWM modulation algorithm executive programs, according to desired output voltage, the instantaneous value of DC voltage and modulation degree, carry out frequency conversion Modulation.
Referring to Fig. 6, a kind of dynamic energy-saving governing system module diagram of frequency converting air-conditioner compressor, as shown in fig. 6, one The dynamic energy-saving regulating system 1 of kind permanent magnet synchronous motor, it is characterised in that for improving permanent magnet synchronous motor in permanent torque part Work efficiency in process and invariable power partial routine, including：Expected frequency acquisition module 11, frequency comparison module 12, frequency In the range of adjustment module 13, higher than scope adjustment module 14, less than scope adjustment module 15, flex point data obtaining module 16；Phase Frequency acquisition module 11 is hoped, for obtaining the real-time desired output frequency of permanent magnet synchronous motor, after program starts execution, into the phase Hope output frequency calculation procedure, obtain desired output frequency fo；Frequency comparison module 12 is connected with expected frequency acquisition module 11, For judging more real-time desired output frequency and active power factor adjuster reference frequency output, desired output frequency calculates The output terminal of program is connected with desired output upper frequency limit determining program；First adjustment module 13 connects with frequency comparison module 12 Connect, for when desired output frequency is in active power factor adjuster reference frequency output, dynamic regulation output voltage；The Two adjustment modules 14 are connected with frequency comparison module 12, for defeated higher than active power factor adjuster in desired output frequency It is expectation output voltage by the output voltage setting of active power factor adjuster maximum, if it is desired to defeated when going out frequency range Go out frequency fo more than highest output fundamental frequency fbmax, then program is set into APFC maximum output voltages, sets APFC to export electricity Press as highest Udcmax；3rd adjustment module 15 is connected with frequency comparison module 12, active for being less than in desired output frequency It is desired output electricity by output voltage setting minimum in default correction factor during the reference frequency output of power-factor regulator Pressure, sets program, it is minimum Udcmin to set APFC output voltages into APFC minimum output voltages；Flex point acquisition of information mould Block 16 is connected with the first adjustment module 13, the second adjustment module 14 and the 3rd adjustment module 15 at the same time, for according to desired output Voltage determines the flex point information of the new voltage-frequency characteristic of permanent magnet synchronous motor, APFC output voltage desired values udc operation journeys The output terminal of sequence is connected with vector speed governing program, and the execution of the program can obtain desired output component of voltage V α and V β, according to The flex point information of the voltage-frequency characteristic of desired output voltage renewal permanent magnet synchronous motor.
Referring to Fig. 7, the frequency comparison module schematic diagram of the present invention is shown as, as shown in fig. 7, frequency comparison module 12, Including：Upper limit judgment module 121, the first judging result output module 122, lower limit judgment module 123, the output of the second judging result 124 and the 3rd judging result output module 125 of module；Upper limit judgment module 121, for judging whether desired output frequency is more than Highest exports fundamental frequency；First judging result output module 122 is connected with upper limit judgment module 121, in desired output frequency When exporting fundamental frequency more than highest, judging result is drawn it is expected that output frequency is higher than the output frequency of active power factor adjuster Scope, if it is desired to output frequency fo is more than highest output fundamental frequency fbmax, then sets program into APFC maximum output voltages, It is highest Udcmax to set APFC output voltages；Lower limit judgment module 123 is connected with the first judging result output module 122, is used In when desired output frequency is less than highest output fundamental frequency, judges whether desired output frequency is more than minimum output fundamental frequency, it is expected Output frequency fo is more than being judged as NO for highest output fundamental frequency fbmax, into desired output lower-frequency limit determining program, such as fruiting period Hope output frequency fo be less than minimum output fundamental frequency fbmin, then program is set into APFC minimum output voltages, set APFC defeated It is minimum Udcmin to go out voltage；Second judging result output module 124 is connected with lower limit judgment module 123, for described Desired output frequency is more than the minimum output fundamental frequency and the lower limit judgment module judges that the desired output frequency is less than institute When stating highest output fundamental frequency, judging result is drawn it is expected output frequency in active power factor adjuster reference frequency output Interior, desired output frequency fo is judged as NO less than minimum output fundamental frequency fbmax's, performs inverter output voltage and frequency relation Look-up routine, obtains APFC output voltages and tables look-up value udc；3rd judging result output module 125 connects with lower limit judgment module 123 Connect, for when desired output frequency is less than minimum output fundamental frequency, drawing judging result it is expected that output frequency is less than active work( The reference frequency output of rate factor adjuster, if it is desired to which output frequency fo is less than minimum output fundamental frequency fbmin, then into APFC Minimum output voltage sets program, and it is minimum Udcmin to set APFC output voltages.
Referring to Fig. 8, the first adjustment module schematic diagram of the present invention is shown as, as shown in figure 8, the first adjustment module 13, Including：Voltage table look-up module 131, voltage desired value module 132；Voltage table look-up module 131, for performing inverter output voltage With frequency relation look-up routine, the output voltage for obtaining power factor correction circuit is tabled look-up value, inverter output voltage and frequency relation The output terminal of look-up routine is connected with APFC output voltage desired value udc calculation procedures, obtains APFC output voltage desired values udc；Voltage desired value module 132 is connected with voltage table look-up module 131, for being tabled look-up value according to the output voltage, operation electricity Press desired value udc calculation procedures, obtain APFC output voltage desired values, APFC output voltage desired value udc calculation procedures it is defeated Outlet is connected with APFC output voltage desired value udc operation programs so that the output voltage stabilization of APFC is in desired value.So that Output voltage stabilization is at 7 points
Referring to Fig. 9, the flex point data obtaining module schematic diagram of the present invention is shown as, as shown in figure 9, flex point acquisition of information Module 16, including：Vector speed adjusting module 161, DC voltage detection module 162, flex point acquisition module 163；Vector speed adjusting module 161, for calling vector speed governing program, desired output component of voltage is obtained, APFC output voltage desired value udc operation programs Output terminal is connected with vector speed governing program, and the execution of the program can obtain desired output component of voltage V α and V β；DC voltage Detection module 162, for calling DC voltage to detect program, obtains the instantaneous value of DC voltage, vector speed governing program it is defeated Outlet is connected with DC voltage detection program, obtains the instantaneous value of DC voltage；Flex point acquisition module 163 at the same time with vector tune Fast module 161 and DC voltage detection module 162 connect, for the instantaneous value according to desired output component of voltage and DC voltage Flex point information is obtained, output terminal and the inverter SVPWM modulation algorithms of the modulation degree m calculation procedures of inverter SVPWM perform journey Sequence is connected, and according to the desired output voltage, DC voltage instantaneous value and modulation degree m being calculated, carries out Frequency-variable Modulation, one is followed Ring end cycle, return start, and carry out the calculating of next cycle.
Referring to Fig. 10, being shown as the make-and-break time acquisition module schematic diagram of the present invention, as shown in Figure 10, make-and-break time obtains Modulus block 17, the make-and-break time acquisition module 17 include：Modulation degree computing module 171 and modulation algorithm execution module 172；Adjust System computing module 171, for calculating acquisition modulation degree in real time according to flex point information, the output terminal of DC voltage detection program with The modulation degree m calculation procedures of inverter SVPWM are connected, according to the instantaneous value of DC voltage and the expectation voltage of permanent magnet synchronous motor Calculate in real time and obtain modulation degree；Modulation algorithm execution module 172 is connected with modulation degree computing module 171, for operated inverter SVPWM modulation algorithm executive programs, according to the desired output voltage, the instantaneous value of the DC voltage and the modulation degree, Carry out Frequency-variable Modulation.
To sum up, a kind of present invention provided by the invention discloses a kind of dynamic energy-saving adjusting method of permanent magnet synchronous motor, should Method calculates desired output frequency in real time based on permanent magnet synchronous motor voltage-frequency characteristic, when expectation output voltage is having When in active power factor adjuster (APFC) output voltage range, dynamic regulation output voltage udc, make permanent magnet synchronous motor all the time It is operated at the flex point of permanent torque state and invariable power state, ensures the efficient energy conversion of permanent magnet synchronous motor.The present invention Speed regulating method can make full use of the output voltage of APFC, permanent magnet synchronous motor can realize the high efficiency in wide frequency ranges Work, solves low efficiency problem of the permanent magnet synchronous motor in permanent torque partial routine and invariable power partial routine；This method Clear logic, control is simple, and the application for being it in Permanent-magnet Synchronous-motor Speed Servo System provides guarantee, solves the prior art In can not the effectively technical problem of the power of automatic adjusument permanent magnet synchronous motor and the speed of service, there is very high business Value and practicality.

Claims (10)

  1. A kind of 1. dynamic energy-saving speed regulating method of permasyn morot, it is characterised in that the described method includes：
    Obtain the real-time desired output frequency of permanent magnet synchronous motor；
    Compare the desired output frequency in real time and default reference frequency output；
    If the desired output frequency is in the active power factor adjuster reference frequency output, dynamic regulation output electricity Pressure；
    If the desired output frequency be higher than the active power factor adjuster reference frequency output, by active power because The output voltage setting of number adjuster maximum is expectation output voltage；
    If the desired output frequency is less than the reference frequency output of the active power factor adjuster, by active power school Positive minimum output voltage setting is expectation output voltage；
    The flex point information of the voltage-frequency characteristic of permanent magnet synchronous motor is updated according to the desired output voltage.
  2. 2. according to the method described in claim 1, it is characterized in that：The active power factor adjuster reference frequency output Endpoints thereof exports fundamental frequency and minimum output fundamental frequency for highest；Desired output frequency and the active power factor in real time Adjuster reference frequency output, including：
    Judge whether the desired output frequency is more than highest output fundamental frequency；
    If so, then show that judging result is higher than the output frequency of the active power factor adjuster for the desired output frequency Scope；
    If it is not, then judging whether the desired output frequency is more than the minimum output fundamental frequency；
    If the desired output frequency is more than the minimum output fundamental frequency, show that judging result exists for the desired output frequency In the active power factor adjuster reference frequency output；
    If the desired output frequency is not more than the minimum output fundamental frequency, it is the desired output frequency to draw judging result Less than the reference frequency output of the active power factor adjuster.
  3. 3. if according to the method described in claim 1, it is characterized in that, the desired output frequency is in the active power In factor adjuster reference frequency output, then dynamic regulation output voltage, including：
    Inverter output voltage and frequency relation look-up routine are performed, the output voltage for obtaining power factor correction circuit is tabled look-up value；
    Tabled look-up value according to the output voltage, working voltage desired value udc calculation procedures, obtain APFC output voltage desired values.
  4. 4. according to the method described in claim 1, it is characterized in that, described determine permanent-magnet synchronous according to the desired output voltage The flex point information of the new voltage-frequency characteristic of motor, including：
    Vector speed governing program is called, obtains desired output component of voltage；
    DC voltage detection program is called, obtains the instantaneous value of DC voltage；
    The flex point information is instantaneously worth to according to the desired output component of voltage and the DC voltage.
  5. 5. the method according to claim 1 or 4, it is characterised in that including：
    Acquisition modulation degree is calculated according to flex point information in real time；
    Operated inverter SVPWM modulation algorithm executive programs, according to the desired output voltage, the instantaneous value of the DC voltage With the modulation degree, Frequency-variable Modulation is carried out.
  6. 6. the dynamic energy-saving governing system of a kind of permasyn morot, it is characterised in that exist for improving permanent magnet synchronous motor Work efficiency in permanent torque partial routine and invariable power partial routine, including：Expected frequency acquisition module, frequency compare mould Block, the first adjustment module, the second adjustment module, the 3rd adjustment module, flex point data obtaining module, logical section time-obtaining module；
    Expected frequency acquisition module, for obtaining the real-time desired output frequency of permanent magnet synchronous motor；
    Frequency comparison module, for judging the desired output frequency in real time and active power factor adjuster output frequency Scope；
    First adjustment module, in the desired output frequency in the active power factor adjuster reference frequency output When, dynamic regulation output voltage；
    Second adjustment module, for being higher than the output frequency model of the active power factor adjuster in the desired output frequency It is expectation output voltage by the output voltage setting of active power factor adjuster maximum when enclosing；
    3rd adjustment module, for being less than the output frequency model of the active power factor adjuster in the desired output frequency It is expectation output voltage by the output voltage setting minimum in default correction factor when enclosing；
    Flex point data obtaining module, for determining the new voltage-frequency of permanent magnet synchronous motor according to the desired output voltage The flex point information of characteristic.
  7. 7. system according to claim 6, it is characterised in that the frequency comparison module, including：Upper limit judgment module, More than upper limit module, lower limit judgment module, scope internal module and less than lower limit module；
    Upper limit judgment module, for judging whether the desired output frequency is more than highest output fundamental frequency；
    First judging result output module, for when the desired output frequency is more than highest output fundamental frequency, drawing and sentencing Disconnected result is higher than the reference frequency output of the active power factor adjuster for the desired output frequency；
    Lower limit judgment module, for when the desired output frequency is less than highest output fundamental frequency, judging that the expectation is defeated Go out whether frequency is more than the minimum output fundamental frequency；
    Second judging result output module, for being more than the minimum output fundamental frequency and the lower limit in the desired output frequency When judgment module judges that the desired output frequency is less than highest output fundamental frequency, it is the desired output to draw judging result Frequency is in the active power factor adjuster reference frequency output；
    3rd judging result output module, for when the desired output frequency is less than the minimum output fundamental frequency, drawing and sentencing Disconnected result is less than the reference frequency output of the active power factor adjuster for the desired output frequency.
  8. 8. system according to claim 6, it is characterised in that first adjustment module, including：Voltage table look-up module, Voltage desired value module；
    Voltage table look-up module, for performing inverter output voltage and frequency relation look-up routine, obtains power factor correction circuit Output voltage is tabled look-up value；
    Voltage desired value module, for being tabled look-up value according to the output voltage, working voltage desired value udc calculation procedures, obtain The output voltage desired value of power factor correction circuit.
  9. 9. system according to claim 6, it is characterised in that the flex point data obtaining module, including：Vector speed governing mould Block, DC voltage detection module, flex point acquisition module；
    Vector speed adjusting module, obtains desired output component of voltage；
    DC voltage detection module, for calling DC voltage to detect program, obtains the instantaneous value of DC voltage；
    Flex point acquisition module, for according to the desired output component of voltage and the DC voltage it is instantaneous be worth to described in turn Point information.
  10. 10. the system according to claim 6 or 9, it is characterised in that further include make-and-break time acquisition module, the break-make Time-obtaining module includes：Modulation degree computing module and modulation algorithm execution module；
    Modulation degree computing module, for running modulation degree calculation procedure, acquisition modulation degree is calculated according to flex point information in real time；
    Modulation algorithm execution module, for operated inverter SVPWM modulation algorithm executive programs, according to desired output electricity Pressure, the instantaneous value of the DC voltage and the modulation degree, carry out Frequency-variable Modulation.
CN201610972573.XA 2016-11-04 2016-11-04 The dynamic energy-saving speed regulating method and system of permasyn morot Active CN108023528B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610972573.XA CN108023528B (en) 2016-11-04 2016-11-04 The dynamic energy-saving speed regulating method and system of permasyn morot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610972573.XA CN108023528B (en) 2016-11-04 2016-11-04 The dynamic energy-saving speed regulating method and system of permasyn morot

Publications (2)

Publication Number Publication Date
CN108023528A true CN108023528A (en) 2018-05-11
CN108023528B CN108023528B (en) 2019-11-12

Family

ID=62084770

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610972573.XA Active CN108023528B (en) 2016-11-04 2016-11-04 The dynamic energy-saving speed regulating method and system of permasyn morot

Country Status (1)

Country Link
CN (1) CN108023528B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075384A (en) * 1992-02-10 1993-08-18 阿莱克斯电子工业株式会社 Be used for Power saving control of induction motor device and control method thereof
CN101378245A (en) * 2007-08-28 2009-03-04 张国辉 Control method and device for induction machine
CN201416980Y (en) * 2009-03-16 2010-03-03 宁波德斯科电子科技有限公司 Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same
CN102549901A (en) * 2009-08-10 2012-07-04 艾默生环境优化技术有限公司 Power factor correction with variable bus voltage
CN104079230A (en) * 2014-07-07 2014-10-01 神王伟国 Asynchronous motor efficiency optimizing control method, device and system and electric car

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075384A (en) * 1992-02-10 1993-08-18 阿莱克斯电子工业株式会社 Be used for Power saving control of induction motor device and control method thereof
CN101378245A (en) * 2007-08-28 2009-03-04 张国辉 Control method and device for induction machine
CN201416980Y (en) * 2009-03-16 2010-03-03 宁波德斯科电子科技有限公司 Direct-current frequency-varying air-conditioning compressor intelligent controller and air-conditioner controlled by same
CN102549901A (en) * 2009-08-10 2012-07-04 艾默生环境优化技术有限公司 Power factor correction with variable bus voltage
CN104079230A (en) * 2014-07-07 2014-10-01 神王伟国 Asynchronous motor efficiency optimizing control method, device and system and electric car

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
林竹: "有源PFC方案对提升空调制冷制热性能的实验研究", 《家电科技》 *

Also Published As

Publication number Publication date
CN108023528B (en) 2019-11-12

Similar Documents

Publication Publication Date Title
CN106627251B (en) A kind of motor control method and device
CN106787888B (en) A kind of three level ANPC converter neutral-point voltage balance methods
CN104508967B (en) Converter control device, method, program and air regulator
US20100315033A1 (en) System and method of dynamic regulation of real power to a load
CN112524854B (en) Control method of compressor in variable frequency air conditioner and variable frequency air conditioner
CN113098365B (en) Method and system for suppressing network side current harmonic of motor driving system without electrolytic capacitor
CN106452127B (en) Voltage adjusting method, device and double IPM module drivers
CN108880371B (en) Transient equivalence method for load model of variable-frequency motor group
CN101345484B (en) Input current low frequency fluctuation controller of low frequency dynamic power supply
CN103580469B (en) A kind of power factor correcting method for permagnetic synchronous motor
CN110289792A (en) Scaling method, control method and the bench test control system of permanent magnet synchronous motor
CN110149067B (en) PI partition control method of inverter system
CN102013824A (en) Controller for inhibiting neutral point potential drift in three-level inverter
CN103378719B (en) Method for running current transformer
CN102315819B (en) Torque motor driving device for wire cut electrical discharge machines
CN103004075B (en) Rectifier circuit device
CN103684174B (en) A kind of method of asynchronous machine automatic energy saving
CN105846728B (en) A kind of intelligent AC regulating fan method for controlling number of revolution
CN106899223A (en) A kind of neutral-point-clamped type three-level inverter bus capacitor neutral-point potential balance method
CN108023528A (en) The dynamic energy-saving speed regulating method and system of permasyn morot
CN105406796B (en) A kind of frequency-changeable compressor control method for frequency, system and convertible frequency air-conditioner
CN111934533A (en) Voltage-multiplying rectification PFC circuit, control method thereof, storage medium and variable-frequency air conditioner
CN104734575B (en) The control method and device of motor
CN104410347B (en) A kind of method for driving compressor and the device for driving compressor
CN112524853B (en) Control method of compressor in variable frequency air conditioner and variable frequency air conditioner

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 200433 No. 1803, 1805, 1806, 335 and 1807, building 2, National Road, Yangpu District, Shanghai

Patentee after: Shanghai Rujing Technology Co.,Ltd.

Address before: 200433 No. 1803, 1805, 1806, 335 and 1807, building 2, National Road, Yangpu District, Shanghai

Patentee before: SHANGHAI RUKING ELECTRONICS Co.,Ltd.

CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 200438 room 1204a, 75 Lane 1688, Guoquan North Road, Yangpu District, Shanghai

Patentee after: Shanghai Rujing Technology Co.,Ltd.

Address before: 200433 rooms 1803, 1805, 1806, 1807, building 2, 335 Guoding Road, Yangpu District, Shanghai

Patentee before: Shanghai Rujing Technology Co.,Ltd.