CN108489038A - A kind of air-conditioning pfc circuit control method - Google Patents
A kind of air-conditioning pfc circuit control method Download PDFInfo
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- CN108489038A CN108489038A CN201810266845.3A CN201810266845A CN108489038A CN 108489038 A CN108489038 A CN 108489038A CN 201810266845 A CN201810266845 A CN 201810266845A CN 108489038 A CN108489038 A CN 108489038A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
Disclosed by the invention to belong to air-conditioning frequency conversion control technique field, specially a kind of air-conditioning pfc circuit control method, the specific rate-determining steps of the air-conditioning pfc circuit control method are as follows：S1：Input control instructs：Integrated processor is programmed, so that integrated processor meets the data receiver to sensing detection unit and the control to output end, the input of data parameters is carried out to integrated processor by input module, the parameter of input includes the temperature range value T of effective object, the normal current value value range I of operating circuit, the normal voltage range value U of operating circuit, the air-conditioning pfc circuit control method passes through the real time monitoring to operating circuit, it is higher to the Grasping level of information, start-up operation then intervenes monitoring, by way of feedback regulation, it can be by way of adjusting repeatedly, improve the monitoring degree to operating circuit.
Description
Technical field
The present invention relates to air-conditioning frequency conversion control technique field, specially a kind of air-conditioning pfc circuit control method.
Background technology
Domestic variable frequency air-conditioning reaches inhibition using PFC (Power Factor Correction, PFC) circuit
Supply harmonic improves the purpose of air-conditioning power factor, to reduce harmonic wave interference of the air conditioner electric control to external electrical network.
The control mode of current domestic air conditioning pfc circuit is, after household starting of air conditioner, will be collected after actual motion
Current value be compared with pre-set current value, the opening and closing of pfc circuit are determined according to comparison result.
But the control mode that existing pfc circuit opens and closes, it is all lower in booting initial stage input voltage and electric current
In the case of, compressor of air conditioner operating voltage is low, and running frequency is promoted also just relatively slow, and it reduce the stability of complete machine operation.
Invention content
The purpose of the present invention is to provide a kind of air-conditioning pfc circuit control methods, to solve to propose in above-mentioned background technology
The control mode that opens and closes of existing pfc circuit, it is all lower in booting initial stage input voltage and electric current, it is empty
The problem of tune compressor operating voltage is low, and running frequency is promoted also just relatively slow, and it reduce the stability of complete machine operation.
To achieve the above object, the present invention provides the following technical solutions：A kind of air-conditioning pfc circuit control method, the air-conditioning
The specific rate-determining steps of pfc circuit control method are as follows：
S1：Input control instructs：Integrated processor is programmed so that integrated processor meets to sensing detection unit
Data receiver and control to output end, the input of data parameters is carried out to integrated processor by input module, input
Parameter includes the normal voltage of the temperature range value T of effective object, the normal current value value range I of operating circuit, operating circuit
Value range U, the temperature range value T of the effective object, the normal current value value range I of operating circuit, operating circuit it is normal
Voltage range values U is stored in the memory in integrated processor；
S2：Parameter real time monitoring：Temperature sensor is mounted on air-conditioning equipment and the indoor place being in direct contact, and passes through temperature
The temperature information of land used is made in sensor detection in real time, and temperature sensor transmits the temperature information of measurement by way of electric signal
To integrated processor, current detecting equipment is connected on operating circuit, and voltage detection device is connected in parallel on operating circuit, electric current
Detection device and voltage detection device are respectively detected the electric current of operating circuit and voltage, and the measured value of detection passes through telecommunications
Number mode export to integrated processor, until integrated processor obtains the measured temperature of reception and voltage, current measurement value
The temperature range value T of effective object, the normal current value value range I of operating circuit, the operating circuit for taking and prestoring with inside
Normal voltage range value U is compared, and whether measurement of comparison value is beyond the value range inputted；
S3：To regulating and controlling beyond presetting part：The result compared in step S2 is obtained, if measured value is inputting
Value range in, then it is working properly, if measured value is greater than the value range of input according to measured value not in the value range of input
The value range for being also less than input is determined the adjusting of high frequency, low frequency, and integrated processor passes through frequency conversion according to the result of comparison
Circuit carries out corresponding regulation and control frequency, changes frequency to change the rotary state of control motor, to reduce to temperature tune
The power of control reduces electric current or reduces voltage；
S4：Comparison, feedback regulation：Revolution detector is detected the rotating speed for controlling motor after regulation and control, and measurement turns
Fast value is temporarily stored in as the control foundation regulated and controled next time, and by rotating speed measured value in the memory in integrated processor,
And the voltage value of the temperature value of temperature sensor measurement, the current value that current detecting equipment measures and voltage detection device is continued
It measures, if measured value stops frequency modulation within the scope of preset input value, if still exceeding preset input value range, root
Continue frequency modulation process according to the control methods of step S3, until meeting the standard of setting.
Preferably, the input module is touch display or IR remote controller.
Preferably, the current detecting equipment and voltage detection device difference ammeter and voltmeter, the ammeter and
Voltmeter is connect by analog-digital converter with integrated processor.
Preferably, the frequency modification scope of the frequency changer circuit is 10Hz-100Hz.
Preferably, it is in series with alarm on the operating circuit in the step S2, when measured value exceeds default input value,
Alarm is triggered and warns prompting.
Preferably, the detected value of revolution detector is described next as the control value regulated and controled next time in the step S4
Secondary regulation and control carry out improving rotating speed or reduce rotating speed with control value.
Compared with prior art, the beneficial effects of the invention are as follows：The air-conditioning pfc circuit control method passes through to operating circuit
Real time monitoring, it is higher to the Grasping level of information, start-up operation then intervene monitoring, by way of feedback regulation, Neng Goutong
The mode adjusted repeatedly is crossed, the monitoring degree to operating circuit is improved.
Description of the drawings
Fig. 1 is circuit control flow chart of the present invention；
Fig. 2 is present system functional block diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of air-conditioning pfc circuit control method, air-conditioning PFC
The specific rate-determining steps of circuit control method are as follows：
S1：Input control instructs：Integrated processor is programmed so that integrated processor meets to sensing detection unit
Data receiver and control to output end, the input of data parameters is carried out to integrated processor by input module, input
Parameter includes the normal voltage of the temperature range value T of effective object, the normal current value value range I of operating circuit, operating circuit
Value range U, the temperature range value T of the effective object, the normal current value value range I of operating circuit, operating circuit it is normal
Voltage range values U is stored in the memory in integrated processor；
S2：Parameter real time monitoring：Temperature sensor is mounted on air-conditioning equipment and the indoor place being in direct contact, and passes through temperature
The temperature information of land used is made in sensor detection in real time, and temperature sensor transmits the temperature information of measurement by way of electric signal
To integrated processor, current detecting equipment is connected on operating circuit, and voltage detection device is connected in parallel on operating circuit, electric current
Detection device and voltage detection device are respectively detected the electric current of operating circuit and voltage, and the measured value of detection passes through telecommunications
Number mode export to integrated processor, until integrated processor obtains the measured temperature of reception and voltage, current measurement value
The temperature range value T of effective object, the normal current value value range I of operating circuit, the operating circuit for taking and prestoring with inside
Normal voltage range value U is compared, and whether measurement of comparison value is beyond the value range inputted；
S3：To regulating and controlling beyond presetting part：The result compared in step S2 is obtained, if measured value is inputting
Value range in, then it is working properly, if measured value is greater than the value range of input according to measured value not in the value range of input
The value range for being also less than input is determined the adjusting of high frequency, low frequency, and integrated processor passes through frequency conversion according to the result of comparison
Circuit carries out corresponding regulation and control frequency, changes frequency to change the rotary state of control motor, to reduce to temperature tune
The power of control reduces electric current or reduces voltage；
S4：Comparison, feedback regulation：Revolution detector is detected the rotating speed for controlling motor after regulation and control, and measurement turns
Fast value is temporarily stored in as the control foundation regulated and controled next time, and by rotating speed measured value in the memory in integrated processor,
And the voltage value of the temperature value of temperature sensor measurement, the current value that current detecting equipment measures and voltage detection device is continued
It measures, if measured value stops frequency modulation within the scope of preset input value, if still exceeding preset input value range, root
Continue frequency modulation process according to the control methods of step S3, until meeting the standard of setting.
Wherein, the input module is touch display or IR remote controller, and the current detecting equipment and voltage are examined
Measurement equipment distinguishes ammeter and voltmeter, the ammeter and voltmeter are connect by analog-digital converter with integrated processor,
The frequency modification scope of the frequency changer circuit is 10Hz-100Hz, and alarm is in series on the operating circuit in the step S2,
When measured value exceeds default input value, alarm is triggered and warns prompting, the detection of revolution detector in the step S4
Value is described to regulate and control to carry out improving rotating speed with control value or reduce rotating speed next time as the control value regulated and controled next time.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of air-conditioning pfc circuit control method, it is characterised in that：The specific rate-determining steps of the air-conditioning pfc circuit control method
It is as follows：
S1：Input control instructs：Integrated processor is programmed so that integrated processor meets the number to sensing detection unit
Control according to receiving and to output end carries out integrated processor by input module the input of data parameters, the parameter of input
The normal current value value range I of temperature range value T, operating circuit including effective object, the normal voltage range of operating circuit
The normal voltage of value U, the temperature range value T of the effective object, the normal current value value range I of operating circuit, operating circuit
Value range U is stored in the memory in integrated processor；
S2：Parameter real time monitoring：Temperature sensor is mounted on air-conditioning equipment and the indoor place being in direct contact, and passes through temperature sensing
The temperature information of land used is made in device detection in real time, and the temperature information of measurement is transmitted to collection by temperature sensor by way of electric signal
At in processor, current detecting equipment is connected on operating circuit, and voltage detection device is connected in parallel on operating circuit, current detecting
Equipment and voltage detection device are respectively detected the electric current of operating circuit and voltage, and the measured value of detection passes through electric signal
Mode is exported to integrated processor, until integrated processor obtains the measured temperature of reception and voltage, current measurement value simultaneously
With inside prestore the temperature range value T of effective object, the normal current value value range I of operating circuit, operating circuit it is normal
Voltage range values U is compared, and whether measurement of comparison value is beyond the value range inputted；
S3：To regulating and controlling beyond presetting part：The result compared in step S2 is obtained, if measured value is in the model of input
It encloses in value, then it is working properly, if measured value is greater than the value range of input still not in the value range of input, according to measured value
Less than the adjusting that the value range of input is determined high frequency, low frequency, integrated processor passes through frequency changer circuit according to the result of comparison
Corresponding regulation and control frequency is carried out, changes frequency to change the rotary state of control motor, temperature is regulated and controled to reduction
Power reduces electric current or reduces voltage；
S4：Comparison, feedback regulation：Revolution detector is detected the rotating speed for controlling motor after regulation and control, the tachometer value of measurement
It is temporarily stored in the memory in integrated processor as the control foundation regulated and controled next time, and by rotating speed measured value, and right
Temperature value, the current value of current detecting equipment measurement and the voltage value of voltage detection device of temperature sensor measurement continue to survey
Amount, if measured value stops frequency modulation within the scope of preset input value, if still exceeding preset input value range, basis
The control methods of step S3 continue frequency modulation process, until meeting the standard of setting.
2. a kind of air-conditioning pfc circuit control method according to claim 1, it is characterised in that：The input module is tactile
Touch display or IR remote controller.
3. a kind of air-conditioning pfc circuit control method according to claim 1, it is characterised in that：The current detecting equipment
Distinguish ammeter and voltmeter with voltage detection device, the ammeter and voltmeter pass through analog-digital converter and integrated processing
Device connects.
4. a kind of air-conditioning pfc circuit control method according to claim 1, it is characterised in that：The frequency of the frequency changer circuit
Rate modification scope is 10Hz-100Hz.
5. a kind of air-conditioning pfc circuit control method according to claim 1, it is characterised in that：Work in the step S2
Make to be in series with alarm on circuit, when measured value exceeds default input value, alarm is triggered and warns prompting.
6. a kind of air-conditioning pfc circuit control method according to claim 1, it is characterised in that：Rotating speed in the step S4
The detected value of detector is described to regulate and control to carry out improving rotating speed or drop with control value next time as the control value regulated and controled next time
The slow-speed of revolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810266845.3A CN108489038A (en) | 2018-03-28 | 2018-03-28 | A kind of air-conditioning pfc circuit control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810266845.3A CN108489038A (en) | 2018-03-28 | 2018-03-28 | A kind of air-conditioning pfc circuit control method |
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| Publication Number | Publication Date |
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| CN108489038A true CN108489038A (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810266845.3A Pending CN108489038A (en) | 2018-03-28 | 2018-03-28 | A kind of air-conditioning pfc circuit control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665028A (en) * | 2020-12-25 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Outdoor machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101070989A (en) * | 2006-05-11 | 2007-11-14 | 傅孔阳 | Air conditioner control system |
| KR20100033803A (en) * | 2008-09-22 | 2010-03-31 | 엘지전자 주식회사 | Air conditioner and controling method thereof |
| JP2015080317A (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power conversion device and air conditioner |
| CN106288192A (en) * | 2016-08-17 | 2017-01-04 | 青岛海尔空调器有限总公司 | Air-conditioning pfc circuit control method and air-conditioning |
| CN107425770A (en) * | 2017-08-17 | 2017-12-01 | 贵州电网有限责任公司贵阳供电局 | AC variable-frequency speed regulation system and speed regulating method based on ARM microprocessor |
-
2018
- 2018-03-28 CN CN201810266845.3A patent/CN108489038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070989A (en) * | 2006-05-11 | 2007-11-14 | 傅孔阳 | Air conditioner control system |
| KR20100033803A (en) * | 2008-09-22 | 2010-03-31 | 엘지전자 주식회사 | Air conditioner and controling method thereof |
| JP2015080317A (en) * | 2013-10-16 | 2015-04-23 | ダイキン工業株式会社 | Power conversion device and air conditioner |
| CN106288192A (en) * | 2016-08-17 | 2017-01-04 | 青岛海尔空调器有限总公司 | Air-conditioning pfc circuit control method and air-conditioning |
| CN107425770A (en) * | 2017-08-17 | 2017-12-01 | 贵州电网有限责任公司贵阳供电局 | AC variable-frequency speed regulation system and speed regulating method based on ARM microprocessor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665028A (en) * | 2020-12-25 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Outdoor machine |
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Application publication date: 20180904 |