CN106208898B - A kind of load motor circuit based on high-pressure frequency-conversion - Google Patents
A kind of load motor circuit based on high-pressure frequency-conversion Download PDFInfo
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- CN106208898B CN106208898B CN201610553971.8A CN201610553971A CN106208898B CN 106208898 B CN106208898 B CN 106208898B CN 201610553971 A CN201610553971 A CN 201610553971A CN 106208898 B CN106208898 B CN 106208898B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 10
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- 239000003990 capacitor Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
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- 238000013475 authorization Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
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- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000012937 correction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
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- 239000003381 stabilizer Substances 0.000 description 1
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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
-
- 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
- H02P25/04—Single phase motors, e.g. capacitor motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of one-way communication motor circuit based on high-pressure frequency-conversion, including zero passage monitor 1, control power supply 2, controlled rectifier unit 3, commissioning disconnect dot element 4, two-way commutation half-bridge cells 5, main line SPWM modulator 6, counter electromotive force zero passage monitor 7, dynamicer 8, high pressure monitor 9, overcurrent sampling unit 10, single-chip microcontroller 11, monophase machine 12 and prompt unit 13.This motor circuit uses transformerless no inductor design, modulates SPWM, lag closed loop adjustment on main line；Over-voltage, the monitoring of overcurrent two-phase, Dynamic Execution, numerous audible and visual alarms, ensure very high motor drive efficiency, component all uses natural heat dissipation, without heavy, thick big, valuableness, the transformer and inductance that cannot be integrated, the existing very high reliability of this motor circuit and safety, conversion efficiency have very high.
Description
Technical field
The invention belongs to the technical fields of power driven equipment, specifically, being related to a kind of based on the single-phase of high-pressure frequency-conversion
Alternating current generator circuit.
Background technique
Load motor driving force is big, at low cost, driving is simple, thus is widely used in coiled strip correction that do actuator dynamic
Power.But monophase machine needs resistance capacitance phase shift motor could be allowed to turn over to form rotating excitation field, this is for needing motor frequency
For the coiled strip correction of numerous commutation, this shifting resistance temperature can be extremely high, is placed in cross-ventilated free space,
Temperature rise, which is enough the pitch-dark whole of insulation of fin surface to scald, to be split, while there are security risks to operator.Secondly, different function
Rate motor needs to match different resistance capacitances, and the motor phase-shift network with the production of power motor different manufacturers cannot all be used with,
And ac synchronous motor response speed is slow, and correction precision is not high.
Summary of the invention
For deficiency above-mentioned in the prior art, it is electromechanical that the present invention provides a kind of single-phase alternating current based on high-pressure frequency-conversion
Road, this load motor realize high-voltage high-speed driving circuit, eliminate the power frequency step-down transformer of heavy thick big front end
With the high-frequency step-up transformer of rear end, reduces volume and weight and reduce costs and use delay closed-loop control, dynamically hold
Row, over-voltage, overcurrent complete monitoring have higher reliability and safety.
In order to achieve the above object, the solution that the present invention uses is: a kind of single-phase alternating current based on high-pressure frequency-conversion
Electromechanical road, including zero passage monitor, control power supply, controlled rectifier unit, commissioning disconnect dot element, two-way commutation half-bridge cells,
Main line SPWM modulator, counter electromotive force zero passage monitor, dynamicer, high pressure monitor, overcurrent sampling unit, single-chip microcontroller and
Monophase machine；
Zero passage monitor instructs single-chip microcontroller by alternating current cycle mistake for extracting the zero passage information of power frequency alternating current twice weekly
Zero moment opens controlled rectifier unit to eliminate rectification surge, prevents genotron impaired, and as forward-type power-fail interrupt,
Notice single-chip microcontroller utilizes remaining electricity parameter unloading in memory RAM into FLASH ROM in time；
Power supply is controlled, for generating the monolithic of control gate drive voltage and+5.6V that+Vp+18V and-Vp+18V floats
Machine operating voltage；
Controlled rectifier unit, for being switched on or off just by single-chip microcontroller authorization in the case where alternating current zero passage monitors and interrupts control
The halfwave rectifier of negative power power supply+Vp and-Vp；
Two-way commutation half-bridge cells, under dynamicer control, single-phase DC electricity to be converted to two-way bipolarity
Alternating current；
Main line SPWM modulator connects between monophase machine and two-way commutation half-bridge cells, in dynamicer
Under control, SPWM modulation is implemented to two-way exchange electricity, the ambipolar pulse ac electricity of two-way is converted into sinusoidal ac；
The monitoring of counter electromotive force zero passage, for acquiring and monitoring counter electromotive force of motor zero-acrross ing moment, it is defeated that closed loop adjusts single-chip microcontroller
SPWM pulse out realizes that motor is synchronous gradually；
Dynamicer include one with self-oscillatory timeout mechanism, dynamicer be connected to two-way commutation half-bridge and
Between single-chip microcontroller, two-way commutation half-bridge and main line SPWM modulator are played the role of time-out and be forced shutdown, electricity is played to single-chip microcontroller
Source boot strap；
High pressure monitor, for carrying out A/D monitoring to power voltage+VP and-VP, to over-voltage or it is under-voltage warn, have and become
Frequency and pressure regulation effect；
Overcurrent sampling unit, overcurrent when monitoring motor is because of stuck or overload；
It further include prompt unit, prompt unit includes buzzer and light emitting diode, for prompting the operation of whole device
Situation.
Preferably, control power supply is that capacitor limits energy power supply, utilizes the capacitive reactance compression power consumption of capacitor.
The invention has the advantages that this motor circuit uses transformerless no inductor design, SPWM is modulated on main line,
Lag closed loop adjustment；Over-voltage, the monitoring of overcurrent two-phase, Dynamic Execution, numerous audible and visual alarms, it is ensured that very high motor driven effect
Rate, component all use natural heat dissipation, without heavy, thick big, valuableness, the transformer and inductance that cannot be integrated, this motor electricity
The existing very high reliability in road and safety, conversion efficiency are again very high.
Detailed description of the invention
Fig. 1 is motor circuit figure of the invention.
Fig. 2 is that mains, positively and negatively halfwave rectifier obtains the circuit diagram of detection peak value to the present invention.
Fig. 3 is practical circuit diagram of the invention.
Fig. 4 is the driving circuit figure of two-way commutation half-bridge cells.
In attached drawing:
1, zero passage monitor；2, power supply is controlled；3, controlled rectifier unit；4, commissioning disconnects dot element；5, two-way changes
To half-bridge cells；6, main line SPWM modulator；7, counter electromotive force zero passage monitor；8, dynamicer；9, high pressure monitors
Device；10, overcurrent sampling unit；11, single-chip microcontroller；12, monophase machine；13, prompt unit.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described:
Referring to Fig.1, the present invention provides a kind of load motor circuit based on high-pressure frequency-conversion, including zero passage monitor 1,
It controls power supply 2, controlled rectifier unit 3, commissioning and disconnects dot element 4, two-way commutation half-bridge cells 5, main line SPWM modulator 6, anti-
Electromotive force zero passage monitor 7, dynamicer 8, high pressure monitor 9, overcurrent sampling unit 10, single-chip microcontroller 11, monophase machine 12
With prompt unit 13.
Zero passage monitor 1 instructs single-chip microcontroller 11 by alternating current cycle for extracting the zero passage information of power frequency alternating current twice weekly
Zero-acrross ing moment opens controlled rectifier unit 3 to eliminate rectification surge, it is impaired to prevent genotron, and as in forward-type power down
It is disconnected, notify single-chip microcontroller 11 to utilize remaining electricity parameter unloading in memory RAM into FLASH ROM in time.
Power supply 2 is controlled, for generating the monolithic of control gate drive voltage and+5.6V that+Vp+18V and-Vp+18V floats
11 operating voltage of machine.Controlling power supply 2 is that capacitor limits energy power supply, utilizes the capacitive reactance compression power consumption of capacitor.
Controlled rectifier unit 3, for being switched on or off pair by the authorization of single-chip microcontroller 11 in the case where alternating current zero passage monitors and interrupts control
The halfwave rectifier of positive and negative power power-supply+Vp and-Vp.
Two-way commutation half-bridge cells 5, for it is bipolar that single-phase DC electricity to be converted to two-way under the control of dynamicer 8
Sexual intercourse galvanic electricity.
Main line SPWM modulator 6 connects between monophase machine 12 and two-way commutation half-bridge cells 5, in Dynamic Execution
Under the control of device 8, SPWM modulation is implemented to two-way exchange electricity, the ambipolar pulse ac electricity of two-way is converted into simple alternating current
Electricity.
The monitoring of counter electromotive force zero passage, for acquiring and monitoring counter electromotive force of motor zero-acrross ing moment, closed loop adjusts single-chip microcontroller 11
SPWM pulse is exported, realizes that motor is synchronous gradually.
Dynamicer 8 is one with self-oscillatory timeout mechanism, which is bridged to two-way commutation half-bridge cells 5
Between single-chip microcontroller 11, bear to two-way commutation half-bridge cells 5 and main line SPWM modulator 6, once the duty that time-out is forced shutdown
Can, and to single-chip microcontroller 11, which acts also as more reliable power down formula " house dog ".
High pressure monitor 9, for carrying out A/D monitoring to power voltage+VP and-VP, to over-voltage or it is under-voltage warn, and directly
Instruct frequency conversion and pressure regulation.
Overcurrent sampling unit 10, overcurrent when monitoring motor is because of stuck or overload.
Prompt unit 13, including buzzer and light emitting diode, when for prompting the operating condition and exception of whole device
Acousto-optic warn.
This motor circuit uses transformerless no inductor design, modulates SPWM, lag closed loop adjustment on main line；Over-voltage,
The monitoring of overcurrent two-phase, Dynamic Execution, numerous audible and visual alarms, it is ensured that very high motor drive efficiency, component all use
Natural heat dissipation, without heavy, thick big, expensive, the transformer and inductance that cannot integrate, the existing very high reliability of this motor circuit and
Safety, conversion efficiency are again very high.
Workflow: after alternating current powers on, control power supply 2 generates the+5.6V operating voltage of single-chip microcontroller 11, piggybacking Dynamic Execution
The load of device 8 is to single-chip microcontroller 11, and after 11 electrification reset of single-chip microcontroller, power supply bootstrapping is completed in 8 enable end of timing scan dynamic driver；It crosses
Zero monitor 1 alternating current twice a week zero-acrross ing moment generate interruption, no-voltage open controlled rectifier unit 3 without surge generate ±
Power power-supply+the Vp and-Vp of 310V or so；Dot element 4 is disconnected when being shorted commissioning, forceful electric power+Vp and-Vp will be loaded into two-way commutation
On half-bridge cells 5, and by dynamicer 8 in accordance with the order of single-chip microcontroller 11, down tube on half-bridge is alternately opened, DC voltage
It is transformed into bipolarity alternating-current pulse, then the main line the SPWM modulator 6 through rear end is modulated into the sinusoidal ac that two-way differs 90 °,
Through simple smooth, load forms the rotation of rotating excitation field driving motor to monophase machine 12.
Referring to Fig. 2, ± 310V high pressure in figure is that positively and negatively halfwave rectifier obtains detection peak to alternating current 220V exchange
Value, either Q1 or Q2 conducting, another is not turned on pipe will all withstand up to the pressure drop lied prostrate 600 more, in order to prevent two pipes
Punch-through failure, control power supply 2 are that capacitor limits energy power supply, utilize the capacitive reactance compression power consumption of capacitor.
Referring to Fig. 3, this figure is present invention control power supply 2, controlled rectifier 3 and the integration of overcurrent sampling unit Unit 10 3
Actual circuit, circuit left end are control power supply 2, limit energy, resistance R4 peak clipping, voltage-stabiliser tube clamper, diode rectification by capacitor C6
The control gate drive voltage that 11 operating voltage of generation+5.6V single-chip microcontroller and+Vp+18V and-Vp+18V float, wherein upper end+
Vp+18V flash driving voltage is also wanted boosted and is generated；Bidirectional triode thyristor Q4 cooperates D10 and D11 half-wave whole by zero cross fired
Stream constitutes controlled rectifier 3, generation+Vp and-Vp power voltage on C11 and C12；Overcurrent sampling unit 11 is completed electric current by R9 and is adopted
Sample, R12 and R11 divide padded decision threshold and improve current sample sensitivity, and R13 and C13 releive electric current moment surge, when because of mistake
Stream R9 is burnt, and red light emitting diodes D17 will light directly to indicate fault point, and D52 plays reverse protection to D17, there is R14
High resistant blocking prevents the high-pressure energy on C13 from directly leaking into inside single-chip microcontroller 11.
Referring to Fig. 4, this figure is the driving simplification figure of two-way half-bridge reversing unit, because two-way circuit is just the same,
Only need to independent analysis all the way.The grid source control voltage U2 of the down tube Q13 of half-bridge is directly driven by-VP+18V in figure, but right
The driving needs of upper tube convert, because it is-Vp that upper tube, which goes Q12 source potential, and driving circuit must be this after Q13 conducting
A negative high voltage obstruction falls.When D53 just blocks Q13 to be connected-Vp high pressure on draw, D52 is then repositioned onto VP+18V on+Vp,
90 ° of phase angles are just differed between two-way half-bridge on-off, the respective charging time to storage capacitor C25 is opened in D51 barrier.Upper tube Q12
The left side a pair of high pressure PNP pipe Q10 and Q11 pipe left floating flash driving voltage for converting, it should be noted that although total system
Altogether, but still high-speed photoelectric coupler is needed to configure to match the huge drop between strong and weak electricity.
Claims (3)
1. a kind of load motor circuit based on high-pressure frequency-conversion, it is characterized in that: including zero passage monitor (1), control power supply
(2), controlled rectifier unit (3), commissioning disconnect dot element (4), two-way commutation half-bridge cells (5), main line SPWM modulator (6),
Counter electromotive force zero passage monitor (7), dynamicer (8), high pressure monitor (9), overcurrent sampling unit (10), single-chip microcontroller (11)
With monophase machine (12)；
Zero passage monitor (1) instructs single-chip microcontroller (11) by alternating current cycle for extracting the zero passage information of power frequency alternating current twice weekly
Zero-acrross ing moment opens controlled rectifier unit (3) to eliminate rectification surge, it is impaired to prevent genotron, and as forward-type power down
It interrupts, single-chip microcontroller (11) is notified to utilize remaining electricity parameter unloading in memory RAM into FLASH ROM in time；
It controls power supply (2), for generating the single-chip microcontroller of control gate drive voltage and+5.6V that+Vp+18V and-Vp+18V floats
(11) operating voltage；
Controlled rectifier unit (3), for being switched on or off by single-chip microcontroller (11) authorization in the case where alternating current zero passage monitors and interrupts control
The halfwave rectifier of positive and negative power power-supply+Vp and-Vp；
Two-way commutates half-bridge cells (5), for it is bipolar that single-phase DC electricity to be converted to two-way under dynamicer (8) control
Sexual intercourse galvanic electricity；
Main line SPWM modulator (6) connects between monophase machine (12) and two-way commutation half-bridge cells (5), for dynamically holding
Under the control of row device (8), SPWM modulation is implemented to two-way exchange electricity, the ambipolar pulse ac electricity of two-way is converted into sinusoidal friendship
Galvanic electricity；
The monitoring of counter electromotive force zero passage, for acquiring and monitoring counter electromotive force of motor zero-acrross ing moment, it is defeated that closed loop adjusts single-chip microcontroller (11)
SPWM pulse out realizes that motor is synchronous gradually；
Dynamicer (8) includes one with self-oscillatory timeout mechanism, and dynamicer (8) is connected to two-way commutation half-bridge
Between single-chip microcontroller (11), two-way commutation half-bridge and main line SPWM modulator (6) are played the role of time-out and be forced shutdown, to monolithic
Machine (11) plays power supply boot strap；
High pressure monitor (9), for carrying out A/D monitoring to power voltage+VP and-VP, to over-voltage or it is under-voltage warn, there is frequency conversion
It is acted on pressure regulation；
Overcurrent sampling unit (10), overcurrent when monitoring motor is because of stuck or overload.
2. the load motor circuit according to claim 1 based on high-pressure frequency-conversion, it is characterized in that: further including that prompt is single
First (13), prompt unit (13) includes buzzer and light emitting diode, for prompting the operating condition of whole device.
3. the load motor circuit according to claim 1 based on high-pressure frequency-conversion, it is characterized in that: the control electricity
Source (2) is that capacitor limits energy power supply, utilizes the capacitive reactance compression power consumption of capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553971.8A CN106208898B (en) | 2016-07-14 | 2016-07-14 | A kind of load motor circuit based on high-pressure frequency-conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610553971.8A CN106208898B (en) | 2016-07-14 | 2016-07-14 | A kind of load motor circuit based on high-pressure frequency-conversion |
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| Publication Number | Publication Date |
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| CN106208898A CN106208898A (en) | 2016-12-07 |
| CN106208898B true CN106208898B (en) | 2019-09-10 |
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| CN201610553971.8A Active CN106208898B (en) | 2016-07-14 | 2016-07-14 | A kind of load motor circuit based on high-pressure frequency-conversion |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113783476B (en) * | 2021-09-16 | 2024-04-05 | 深圳市海浦蒙特科技有限公司 | Single-phase motor control method, device and system |
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| KR20050104148A (en) * | 2004-04-28 | 2005-11-02 | 엘에스산전 주식회사 | Control device of inverter |
| CN102647146A (en) * | 2012-05-15 | 2012-08-22 | 厦门精研自动化元件有限公司 | Digital controller of single-phase alternating current motor |
| CN102707121A (en) * | 2012-06-14 | 2012-10-03 | 美的集团有限公司 | Voltage surge detection circuit |
| JP2013258826A (en) * | 2012-06-12 | 2013-12-26 | Jscc Automation (Xiamen) Co Ltd | Digital controller of single-phase ac motor |
| CN203387422U (en) * | 2013-08-12 | 2014-01-08 | 浙江工商职业技术学院 | High-efficiency numerical-control voltage-stabilized power supply |
| CN105680739A (en) * | 2016-04-01 | 2016-06-15 | 武汉工程大学 | High-rotation speed brushless DC motor position-sensorless controller |
-
2016
- 2016-07-14 CN CN201610553971.8A patent/CN106208898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050104148A (en) * | 2004-04-28 | 2005-11-02 | 엘에스산전 주식회사 | Control device of inverter |
| CN102647146A (en) * | 2012-05-15 | 2012-08-22 | 厦门精研自动化元件有限公司 | Digital controller of single-phase alternating current motor |
| JP2013258826A (en) * | 2012-06-12 | 2013-12-26 | Jscc Automation (Xiamen) Co Ltd | Digital controller of single-phase ac motor |
| CN102707121A (en) * | 2012-06-14 | 2012-10-03 | 美的集团有限公司 | Voltage surge detection circuit |
| CN203387422U (en) * | 2013-08-12 | 2014-01-08 | 浙江工商职业技术学院 | High-efficiency numerical-control voltage-stabilized power supply |
| CN105680739A (en) * | 2016-04-01 | 2016-06-15 | 武汉工程大学 | High-rotation speed brushless DC motor position-sensorless controller |
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Address after: No. 12 Gangqiao Branch Road, Jiangbei District, Chongqing, 400020, China, 3-2 Patentee after: Chongqing Bianfu Technology Co.,Ltd. Country or region after: China Address before: No. 12 Gangqiao Branch Road, Jiangbei District, Chongqing, 400020, China, 3-2 Patentee before: CHONGQING BIAN FU TECHNOLOGY CO.,LTD. Country or region before: China |