CN104949363B - Photovoltaic direct-drive compressor unit and control method thereof - Google Patents
Photovoltaic direct-drive compressor unit and control method thereof Download PDFInfo
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- CN104949363B CN104949363B CN201410112200.6A CN201410112200A CN104949363B CN 104949363 B CN104949363 B CN 104949363B CN 201410112200 A CN201410112200 A CN 201410112200A CN 104949363 B CN104949363 B CN 104949363B
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- compressor
- power
- photovoltaic
- air
- conditioning
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004378 air conditioning Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 5
- 235000013399 edible fruits Nutrition 0.000 claims 3
- 238000012806 monitoring device Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000005611 electricity Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
- F24F2005/0067—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a photovoltaic direct-drive compressor unit and a control method thereof. The photovoltaic direct-drive compressor unit comprises: the compressor is electrically connected with the photovoltaic cell and the alternating current power supply respectively; the inverter unit is arranged between the compressor and the photovoltaic cell and between the compressor and the alternating current power supply; the power monitoring device is further included, and the output power of the compressor is controlled based on the generated power and trend of the photovoltaic cell and the current load and trend of the compressor. According to the invention, the output power of the compressor unit of the air conditioner is controlled by the power monitoring device, so that the purpose of reducing the power consumption of the unit is achieved, and the photovoltaic direct-drive utilization rate of the photovoltaic cell direct-drive variable-frequency centrifugal unit is improved.
Description
Technical field
The present invention relates to field of air conditioning, especially, it is related to a kind of photovoltaic direct-drive compressor group and its control method.
Background technology
Photovoltaic directly drives centrifugation of the frequency conversion centrifugal compressor system using photovoltaic DC electricity direct drive frequency conversion centrifugal compressor
Compressor assembly.Taking the lead in have developed a set of photovoltaic for the system, directly to drive the electrical integrated management of centrifugal compressor system hair flat
Platform, has started the new model of the hair management of power use of photovoltaic generation and HVAC system electricity consumption.But, the deficiency of scheme before：
Although conventional photovoltaic power generation monitoring system and group control system have developed quite ripe, also there are many offices
Limit：
Traditional photovoltaic generating system only provides the solution of photo-voltaic power generation station, although scheme is quite ripe,
But it has lacked the concentrated controling management to electrical equipment, more the electrical equipment to HVAC system is not controlled.
Traditional HVAC group control system supplies the parameters such as the temperature or pressure difference of return main typically by detection freezing,
Load Regulation is carried out to HVAC system, the change of outdoor environment is not considered substantially；
Control of traditional HVAC group control system to handpiece Water Chilling Units is only limitted to start-up and shut-down control and freezing leaving water temperature control
System, the control mode of this degree can only realize unit fast-refrigerating or quick standby, can not combine system currently negative
Lotus and its variation tendency, the load output of control handpiece Water Chilling Units, utilization rate are low.Except DC frequency-changing centrifugal compressor and photovoltaic are straight
Drive outside frequency conversion centrifugal compressor, determine frequency handpiece Water Chilling Units when adjusting leaving water temperature, pressure can be caused due to being rapidly reached temperature spot
Contracting machine frequent start-stop, is unfavorable for stable operation of unit.
The content of the invention
Present invention aims at a kind of photovoltaic direct-drive compressor group and its control method is provided, profit can be directly driven to solve photovoltaic
With the low technical problem of rate.
To achieve the above object, the invention provides a kind of photovoltaic direct-drive compressor group, including：Compressor, respectively with light
Lie prostrate battery and AC power electrical connection；Inversion unit, is arranged between compressor and photovoltaic cell and compressor and alternating current
Between source；Also include power monitor device, generated output and trend and compressor current loads based on photovoltaic cell and become
Gesture controls the power output of compressor.
Further, joining unit is provided between photovoltaic cell and inversion unit.
Further, power supply unit is provided between joining unit and inversion unit.
Further, convertor unit is provided between AC power and inversion unit.
Further, transformer is provided between convertor unit and AC power.
Compressor is detected present invention also offers a kind of control method power monitor device of photovoltaic direct-drive compressor group
Load variations trend；Output power is carried out to compressor according to testing result.
Further, carrying out output power to compressor according to testing result includes：Limit the output work of compressor
Rate, reduces the power consumption of unit, makes the power consumption of compressor equal with the value of photovoltaic cell capable of generating power amount.
Further, carrying out output power to compressor according to testing result includes：When the power consumption of air-conditioning is big
When photovoltaic generation power：When the load of air-conditioning system is in the trend risen, the output power limit value of air-conditioning keeps constant.
Further, carrying out output power to compressor according to testing result includes：When the power consumption of air-conditioning is big
When photovoltaic generation power：When the load of air-conditioning system is in downward trend, the output power limit value of air-conditioning reduces 5%.
Further, carrying out output power to compressor according to testing result includes：When the power consumption of air-conditioning is small
When photovoltaic generation power：When the load of air-conditioning system is in the trend risen, the output power limit value increase 5% of air-conditioning.
Further, it is characterised in that carrying out output power to compressor according to testing result includes：When air-conditioning
When power consumption is less than photovoltaic generation power：When the load of air-conditioning system is in downward trend, the output power limit value of air-conditioning
Keep constant.
The invention has the advantages that：
The present invention controls the power output of the compressor set of air conditioner by power monitor device, reaches the consumption for reducing unit
The purpose of electricity, improves photovoltaic cell and directly drives the photovoltaic of variable frequency centrifuge group and directly drive utilization rate.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the photovoltaic direct-drive compressor group according to the present invention；And
Fig. 2 is the schematic diagram of the photovoltaic direct-drive compressor group control method according to the present invention.
Reference in accompanying drawing is as follows：10th, compressor；20th, photovoltaic cell；30th, AC power；40th, inversion unit；
50th, joining unit；60th, power supply unit；70th, convertor unit；80th, transformer；90th, power monitor device.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Referring to Fig. 1, according to the photovoltaic direct-drive compressor group of the present invention, including：Compressor 10, respectively with photovoltaic cell 20 and
AC power 30 is electrically connected；Inversion unit 40 is respectively provided between compressor 10 and photovoltaic cell 20 and AC power 30 also includes work(
Rate supervising device, detects the generated output and trend and compressor current loads and trend of photovoltaic cell 20.The present invention passes through work(
The power output of the compressor set of rate supervising device control air conditioner, reaches the purpose for the power consumption for reducing unit, improves light
The photovoltaic that volt battery directly drives variable frequency centrifuge group directly drives utilization rate.
Referring to Fig. 1, joining unit 50 is provided between photovoltaic cell 20 and inversion unit 40.Joining unit 50 and inversion list
Power supply unit 60 is provided between member 40.Convertor unit 70 is provided between AC power 30 and inversion unit 40.Convertor unit
Transformer 80 is provided between 70 and AC power 30.Power monitor device 90 controls compressor by compressor control mainboard
Power output.
Photovoltaic, which directly drives the applicable air conditioner type of the electrical integrated management platform of air-conditioner set system hair, to be had：Centrifuge, water cooling spiral shell
Bar machine, air-cooled screw machine, module machine, water source heat pump units, multi-joint unit.
Photovoltaic energy utilization rate refers to the efficiency of the compressor of photovoltaic energy DC powered frequency conversion centrifugation systems.
Referring to Fig. 2, air-conditioner set is entered according to the parameter such as the real-time generated output of photovoltaic and trend, air conditioner load variation tendency
Row power output is adjusted.The purpose of this adjusting method reaches the power consumption that reduces unit by limiting the power output of unit
Purpose, ensures that freezing leaving water temperature is stable in arranges value within the time of one section of permission, at the same make the power consumption of air-conditioner set with
The value of photovoltaic power generation quantity is equal.Control principle is as follows：
Referring to Fig. 2, according to the control method of the photovoltaic direct-drive compressor group of the present invention, power monitor device is according to photovoltaic electric
The real-time generated output in pond 20 and trend, the load variations trend of compressor 10 carry out power output regulation, limitation to compressor 10
The power output of compressor 10, reduces the power consumption of unit, makes the power consumption of compressor 10 and the value of the generated energy of photovoltaic cell 20
It is equal.
The purpose of this adjusting method reaches the purpose for the power consumption for reducing unit by limiting the power output of unit, protects
Barrier freezing leaving water temperature is stable in arranges value within the time of one section of permission, while making the power consumption of air-conditioner set be slightly larger than light
Lie prostrate generated output.Control method is as follows：
During 10 unit starting of compressor, the initial power of unit limitation setting P1, acquiescence 50%, setting range is 50%~
100%.Output power limit value regulating cycle is t1（Acquiescence 60 seconds）.
（1）When the power consumption of compressor 10 is more than photovoltaic generation power：
If photovoltaic generation power is in the trend risen, when the load of the system of compressor 10 is in the trend risen, compressor 10
Output power limit value keep it is constant；
If photovoltaic generation power is in the trend risen, when the load of the system of compressor 10 is in downward trend, compressor 10
Output power limit value reduce 5%；
If photovoltaic generation power is in downward trend, when the load of the system of compressor 10 is in the trend risen, compressor 10
Output power limit value keep it is constant；
If photovoltaic generation power is in downward trend, when the load of the system of compressor 10 is in downward trend, compressor 10
Output power limit value reduce 5%；
（2）When the power consumption of compressor 10 is less than photovoltaic generation power：
If photovoltaic generation power is in the trend risen, when the load of the system of compressor 10 is in the trend risen, compressor 10
Output power limit value increase 5%；
If photovoltaic generation power is in the trend risen, when the load of the system of compressor 10 is in downward trend, compressor 10
Output power limit value keep it is constant；
If photovoltaic generation power is in downward trend, when the load of the system of compressor 10 is in the trend risen, compressor 10
Output power limit value increase 5%；
If photovoltaic generation power is in downward trend, when the load of the system of compressor 10 is in downward trend, compressor 10
Output power limit value keep it is constant.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
The present invention controls the power output of the compressor set of air conditioner by power monitor device, reaches the consumption for reducing unit
The purpose of electricity, improves photovoltaic cell and directly drives the photovoltaic of variable frequency centrifuge group and directly drive utilization rate；The present invention makes light as much as possible
The generated energy of volt is equal in the power consumption of unit, i.e. photovoltaic electricity is used directly to compressor set, without convertor unit
Powered to power network, reduce the loss powered and brought to power network.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (4)
1. a kind of control method of photovoltaic direct-drive compressor group, it is characterised in that
The load variations trend of power monitor device (90) detection compressor (10)；
Output power is carried out to the compressor (10) according to testing result,
It is described that the compressor (10) progress output power is included according to testing result：
When the power consumption of air-conditioning is more than photovoltaic generation power：The load of air-conditioning system in rise trend when, air-conditioning it is defeated
Go out power limit and keep constant；
It is described that the compressor (10) progress output power is also included according to testing result：Limit the compressor (10)
Power output, reduce the power consumption of unit, make the power consumption of the compressor (10) and the photovoltaic cell (20) generated energy
Value it is equal.
2. the control method of photovoltaic direct-drive compressor group according to claim 1, it is characterised in that described to be tied according to detection
Fruit carries out output power to the compressor (10) to be included：
When the power consumption of air-conditioning is more than photovoltaic generation power：The load of air-conditioning system be in downward trend when, air-conditioning it is defeated
Go out power limit and reduce 5%.
3. the control method of photovoltaic direct-drive compressor group according to claim 1, it is characterised in that described to be tied according to detection
Fruit carries out output power to the compressor (10) to be included：
When the power consumption of air-conditioning is less than photovoltaic generation power：The load of air-conditioning system in rise trend when, air-conditioning it is defeated
Go out power limit increase 5%.
4. the control method of photovoltaic direct-drive compressor group according to claim 1, it is characterised in that described to be tied according to detection
Fruit carries out output power to the compressor (10) to be included：
When the power consumption of air-conditioning is less than photovoltaic generation power：The load of air-conditioning system be in downward trend when, air-conditioning it is defeated
Go out power limit and keep constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112200.6A CN104949363B (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112200.6A CN104949363B (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949363A CN104949363A (en) | 2015-09-30 |
| CN104949363B true CN104949363B (en) | 2017-10-27 |
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| CN201410112200.6A Active CN104949363B (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit and control method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108076616B (en) * | 2017-12-27 | 2023-09-08 | 珠海格力电器股份有限公司 | Photovoltaic centrifuge system |
| CN114413322A (en) * | 2021-12-25 | 2022-04-29 | 万江新能源集团有限公司 | Utilize geothermal heating system of photoelectric coupling hydrothermal type |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106523A (en) * | 1993-10-19 | 1995-08-09 | 三星电子株式会社 | A control apparatus and method for an air conditioner |
| JPH089684A (en) * | 1994-06-16 | 1996-01-12 | Sanyo Electric Co Ltd | Inverter control apparatus |
| DE102009010117A1 (en) * | 2009-02-24 | 2010-09-02 | Peter Breuning | Electricity reference output standardizing method for energy consumer in household application, involves switching electricity consuming devices according to priority for supplying output of electricity without exceeding reference value |
| CN102374689A (en) * | 2011-09-30 | 2012-03-14 | 广州西河冷热设备工程有限公司 | Solar photovoltaic cold-heat set of air conditioner |
| CN103597690A (en) * | 2011-04-08 | 2014-02-19 | 艾思玛太阳能技术股份公司 | Optimized load management |
| CN203798002U (en) * | 2014-03-24 | 2014-08-27 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit |
-
2014
- 2014-03-24 CN CN201410112200.6A patent/CN104949363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106523A (en) * | 1993-10-19 | 1995-08-09 | 三星电子株式会社 | A control apparatus and method for an air conditioner |
| JPH089684A (en) * | 1994-06-16 | 1996-01-12 | Sanyo Electric Co Ltd | Inverter control apparatus |
| DE102009010117A1 (en) * | 2009-02-24 | 2010-09-02 | Peter Breuning | Electricity reference output standardizing method for energy consumer in household application, involves switching electricity consuming devices according to priority for supplying output of electricity without exceeding reference value |
| CN103597690A (en) * | 2011-04-08 | 2014-02-19 | 艾思玛太阳能技术股份公司 | Optimized load management |
| CN102374689A (en) * | 2011-09-30 | 2012-03-14 | 广州西河冷热设备工程有限公司 | Solar photovoltaic cold-heat set of air conditioner |
| CN203798002U (en) * | 2014-03-24 | 2014-08-27 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit |
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| CN104949363A (en) | 2015-09-30 |
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