CN203798002U - Photovoltaic direct-drive compressor unit - Google Patents
Photovoltaic direct-drive compressor unit Download PDFInfo
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- CN203798002U CN203798002U CN201420135781.0U CN201420135781U CN203798002U CN 203798002 U CN203798002 U CN 203798002U CN 201420135781 U CN201420135781 U CN 201420135781U CN 203798002 U CN203798002 U CN 203798002U
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- 230000036316 preload Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000012806 monitoring device Methods 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a photovoltaic directly drives compressor unit, include: 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. The utility model discloses a power monitoring device controls the output of the compressor unit of air conditioner, reaches the purpose that reduces the power consumption of unit, has improved photovoltaic cell and has directly driven the photovoltaic of frequency conversion centrifugal unit and directly drive the utilization ratio.
Description
Technical field
The utility model relates to field of air conditioning, especially, relates to a kind of photovoltaic direct-drive compressor group.
Background technology
Photovoltaic directly drives frequency conversion centrifugal compressor system and uses photovoltaic DC electricity directly to drive the centrifugal compressor system of frequency conversion centrifugal compressor.For this system, take the lead in having researched and developed a set of photovoltaic and directly drive the electrical integrated management platform of centrifugal compressor system hair, started the new model of sending out the management of power use of photovoltaic generation and the electricity consumption of HVAC system.But, the deficiency of scheme before:
Although conventional photovoltaic power generation monitoring system and group control system have developed quite ripely, also have many limitations:
Traditional photovoltaic generating system only provides the solution of photo-voltaic power generation station, although scheme is quite ripe, it has lacked the concentrated controling management to consumer, more the consumer of HVAC system is not controlled.
Traditional HVAC group control system normally, by detecting the freezing parameters such as temperature differential pressure for return main, is carried out Load Regulation to HVAC system, does not substantially consider the variation of outdoor environment;
The control of handpiece Water Chilling Units is only limited to on off control to traditional HVAC group control system and freezing leaving water temperature is controlled, the control mode of this degree can only realize unit fast-refrigerating or standby fast, can not current load and the variation tendency thereof of coupling system, control the load output of handpiece Water Chilling Units, utilization rate is low.Except DC frequency-changing centrifugal compressor and photovoltaic directly drive frequency conversion centrifugal compressor, fixed handpiece Water Chilling Units frequently, when adjusting coolant-temperature gage, can cause high frequent start and stop owing to reaching rapidly temperature spot, is unfavorable for stable operation of unit.
Utility model content
The utility model object is to provide a kind of photovoltaic direct-drive compressor group, to solve photovoltaic, can directly drive the technical problem that utilization rate is low.
For achieving the above object, the utility model provides a kind of photovoltaic direct-drive compressor group, comprising: compressor, is electrically connected to photovoltaic cell and AC power respectively; Inversion unit, is arranged between compressor and photovoltaic cell and between compressor and AC power; Also comprise power monitor device, the generated output based on photovoltaic cell and trend and compressor are controlled the power output of compressor when preload and trend.
Further, between photovoltaic cell and inversion unit, be provided with the unit that confluxes.
Further, conflux and be provided with power supply unit between unit and inversion unit.
Further, between AC power and inversion unit, be provided with convertor unit.
Further, between convertor unit and AC power, be provided with transformer.
The utlity model has following beneficial effect:
The utility model is controlled the power output of the compressor bank of air-conditioner by power monitor device, reach the object of the power consumption that reduces unit, has improved the photovoltaic that photovoltaic cell directly drives variable frequency centrifuge group and has directly driven utilization rate.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of photovoltaic direct-drive compressor group of the present utility model; And
Fig. 2 is according to the schematic diagram of photovoltaic direct-drive compressor group control method of the present utility model.
Reference numeral in accompanying drawing is as follows: 10, compressor; 20, photovoltaic cell; 30, AC power; 40, inversion unit; 50, the unit that confluxes; 60, power supply unit; 70, convertor unit; 80, transformer; 90, power monitor device.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, according to photovoltaic direct-drive compressor group of the present utility model, comprising: compressor 10, is electrically connected to photovoltaic cell 20 and AC power 30 respectively; Between compressor 10 and photovoltaic cell 20 and AC power 30, inversion unit 40 is all set and also comprises power monitor device, the generated output of detection photovoltaic cell 20 and trend and compressor are when preload and trend.The utility model is controlled the power output of the compressor bank of air-conditioner by power monitor device, reach the object of the power consumption that reduces unit, has improved the photovoltaic that photovoltaic cell directly drives variable frequency centrifuge group and has directly driven utilization rate.
Referring to Fig. 1, between photovoltaic cell 20 and inversion unit 40, be provided with the unit 50 that confluxes.Conflux and be provided with power supply unit 60 between unit 50 and inversion unit 40.Between AC power 30 and inversion unit 40, be provided with convertor unit 70.Between convertor unit 70 and AC power 30, be provided with transformer 80.Power monitor device 90 is controlled the power output of compressor by compressor control mainboard.
Photovoltaic directly drives the applicable air-conditioning type of the electrical integrated management platform of air conditioner group system hair to be had: centrifuge, water-cooling screw rod 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, when according to parameters such as the real-time generated output of photovoltaic and trend, air conditioner load variation tendencies, air-conditioning unit being carried out to power output adjusting.The object of this control method, by the power output of restriction unit, reaches the object of the power consumption that reduces unit, ensures that freezing leaving water temperature is stabilized in settings within the time of one section of permission, makes the power consumption of air-conditioning unit and the value of photovoltaic power generation quantity equate simultaneously.Control principle is as follows:
Referring to Fig. 2, according to the control method of photovoltaic direct-drive compressor group of the present utility model, power monitor device is carried out power output adjusting according to the load variations trend of the real-time generated output of photovoltaic cell 20 and trend, compressor 10 to compressor 10, the power output of limit compression machine 10, the power consumption that reduces unit, makes the power consumption of compressor 10 equate with the value of photovoltaic cell 20 generated energy.
The object of this control method, by the power output of restriction unit, reaches the object of the power consumption that reduces unit, ensures that freezing leaving water temperature is stabilized in settings within the time of one section of permission, makes the power consumption of air-conditioning unit be slightly larger than photovoltaic generation power simultaneously.Control method is as follows:
During compressor 10 unit starting, the initial power limit setting P1 of unit, 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 greater than photovoltaic generation power:
If photovoltaic generation power is the trend of rising, when the load of compressor 10 systems is the trend of rising, the output power limit value of compressor 10 remains unchanged;
If photovoltaic generation power is the trend of rising, when the load of compressor 10 systems is downward trend, the output power limit value of compressor 10 reduces 5%;
If photovoltaic generation power is downward trend, when the load of compressor 10 systems is the trend of rising, the output power limit value of compressor 10 remains unchanged;
If photovoltaic generation power is downward trend, when the load of compressor 10 systems is downward trend, the output power limit value of compressor 10 reduces 5%;
(2) when the power consumption of compressor 10 is less than photovoltaic generation power:
If photovoltaic generation power is the trend of rising, when the load of compressor 10 systems is the trend of rising, the output power limit value of compressor 10 increases 5%;
If photovoltaic generation power is the trend of rising, when the load of compressor 10 systems is downward trend, the output power limit value of compressor 10 remains unchanged;
If photovoltaic generation power is downward trend, when the load of compressor 10 systems is the trend of rising, the output power limit value of compressor 10 increases 5%;
If photovoltaic generation power is downward trend, when the load of compressor 10 systems is downward trend, the output power limit value of compressor 10 remains unchanged.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
The utility model is controlled the power output of the compressor bank of air-conditioner by power monitor device, reach the object of the power consumption that reduces unit, has improved the photovoltaic that photovoltaic cell directly drives variable frequency centrifuge group and has directly driven utilization rate; The utility model makes the generated energy of photovoltaic equate in the power consumption of unit as much as possible, and photovoltaic electricity is directly used to compressor bank, without convertor unit, to mains supply, reduces the loss bringing to mains supply.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a photovoltaic direct-drive compressor group, is characterized in that, comprising:
Compressor (10), is electrically connected to photovoltaic cell (20) and AC power (30) respectively;
Inversion unit (40), is arranged between described compressor (10) and described photovoltaic cell (20) and between described compressor (10) and described AC power (30);
Also comprise power monitor device (90), the generated output based on described photovoltaic cell (20) and trend and compressor are controlled the power output of described compressor (10) when preload and trend.
2. photovoltaic direct-drive compressor group according to claim 1, is characterized in that,
Between described photovoltaic cell (20) and described inversion unit (40), be provided with the unit that confluxes (50).
3. photovoltaic direct-drive compressor group according to claim 2, is characterized in that,
Between the described unit that confluxes (50) and described inversion unit (40), be provided with power supply unit (60).
4. photovoltaic direct-drive compressor group according to claim 1, is characterized in that,
Between described AC power (30) and described inversion unit (40), be provided with convertor unit (70).
5. photovoltaic direct-drive compressor group according to claim 4, is characterized in that,
Between described convertor unit (70) and described AC power (30), be provided with transformer (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135781.0U CN203798002U (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420135781.0U CN203798002U (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit |
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| Publication Number | Publication Date |
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| CN203798002U true CN203798002U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420135781.0U Expired - Lifetime CN203798002U (en) | 2014-03-24 | 2014-03-24 | Photovoltaic direct-drive compressor unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949363A (en) * | 2014-03-24 | 2015-09-30 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| WO2017097049A1 (en) * | 2015-12-08 | 2017-06-15 | 珠海格力电器股份有限公司 | Method and apparatus for inputting current into air conditioning unit |
| US20230147460A1 (en) * | 2016-01-25 | 2023-05-11 | Smardt Chiller Group Inc. | Solar integrated chiller method and system |
-
2014
- 2014-03-24 CN CN201420135781.0U patent/CN203798002U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949363A (en) * | 2014-03-24 | 2015-09-30 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| CN104949363B (en) * | 2014-03-24 | 2017-10-27 | 珠海格力电器股份有限公司 | Photovoltaic direct-drive compressor unit and control method thereof |
| WO2017097049A1 (en) * | 2015-12-08 | 2017-06-15 | 珠海格力电器股份有限公司 | Method and apparatus for inputting current into air conditioning unit |
| US20230147460A1 (en) * | 2016-01-25 | 2023-05-11 | Smardt Chiller Group Inc. | Solar integrated chiller method and system |
| US11761688B2 (en) * | 2016-01-25 | 2023-09-19 | Tica-Smardt Chiller Group Inc. | Solar integrated chiller method and system |
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Granted publication date: 20140827 |
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| CX01 | Expiry of patent term |