CN1971156A - Output control method for compressor of ice storage unit - Google Patents
Output control method for compressor of ice storage unit Download PDFInfo
- Publication number
- CN1971156A CN1971156A CNA2006101239424A CN200610123942A CN1971156A CN 1971156 A CN1971156 A CN 1971156A CN A2006101239424 A CNA2006101239424 A CN A2006101239424A CN 200610123942 A CN200610123942 A CN 200610123942A CN 1971156 A CN1971156 A CN 1971156A
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- compressor
- low pressure
- saturation temperature
- capacity
- control method
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009825 accumulation Methods 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a control method for the output capacity of a compressor of an ice storage air conditioning unit. An output control method for a compressor of an ice cold storage machine set comprises the steps of setting at least three saturation temperature values corresponding to low pressure according to the requirement of a user on the capacity output of the compressor, wherein the saturation temperature values comprise two standard temperature values B, C and at least one auxiliary temperature value, and B is less than C; when the actual low pressure of the compressor corresponds to the saturation temperature less than B, the capacity of the compressor is reduced by more than 5%; when the actual low-pressure corresponding saturation temperature of the compressor is greater than B and less than or equal to C, the capacity of the compressor does not need to be adjusted; and when the actual low pressure of the compressor corresponds to the saturation temperature which is more than C, the capacity of the compressor is increased by more than 5%. On one hand, the ice storage time is shortened as much as possible, and the energy consumption is reduced; on the other hand, the system can not generate exhaust temperature protection, oil temperature protection and other factors which cause unstable operation of the system due to too low operation pressure.
Description
Technical field
The present invention relates to a kind of air-conditioning machine set compressor fan-out capability control method, particularly a kind of control method of ice-storage air-conditioning machine set compressor fan-out capability.
Background technology
Existing ice holds the cheap electric power of lotus phase, and as night electricity, the cold that refrigeration system is produced is stored in the water, water congeals into ice; And,, the cold in the ice is discharged, thereby reduce the electrical network high load capacity phase to the requirement of electric power, the air-conditioning system of realization power system " peak load shifting " as daytime in the electrical network high load capacity phase of electricity price costliness.In the area of power shortage, ice-storage system can be realized " load shift "---the refrigeration duty of supply of electric power peak period is transferred to the electric load low-valley interval, improve efficiency of energy utilization, solve electric power peak period supply of electric power problem.Therefore, this technology has been subjected to the support energetically of the electric power policy of user's welcome and power department, develops rapidly at home.Yet, if ice-storage air-conditioning machine set compressor fan-out capability immobilizes, may be too little owing to the compressor fan-out capability, and make the ice-reserving time oversize; Also may be too big owing to the compressor fan-out capability, and make system because operating pressure hangs down excessively and causes occurring the delivery temperature protection, the similar factors that cause system's irregular operation such as the warm protection of oil.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method that can control the air-conditioning machine set compressor according to ice cold-storage unit operation situation is provided.
Technical problem to be solved by this invention is achieved by the following technical solution: a kind of output control method for ice cold accumulation machine set compressor, according to the saturation temperature value of user at least three low pressure correspondences of requirements set of compressor capacity output, comprising two normal temperature value B, C and at least one auxiliary temperature value, wherein, B＜C; When the corresponding saturation temperature of the actual low pressure of compressor during less than B, compressor capacity is reduced more than 5%; When the corresponding saturation temperature of the actual low pressure of compressor during greater than B and smaller or equal to C, compressor capacity need not to adjust; When the corresponding saturation temperature of the actual low pressure of compressor during greater than C, compressor capacity raises more than 5%.
The present invention determines by the saturation temperature of monitoring compressor low pressure correspondence whether compressor capacity output needs to adjust, and adjusting range.Shorten the ice-reserving time on the one hand as far as possible, reduce energy consumption; System can not cause occurring the similar factors that cause system's irregular operation such as delivery temperature protection, the protection of oil temperature owing to operating pressure is low excessively on the other hand.
The specific embodiment
A kind of output control method for ice cold accumulation machine set compressor, according to saturation temperature value A, B, the C of user to three low pressure correspondences of requirements set of compressor capacity output, wherein, B, C, be the normal temperature value, be that the user wishes that compressor exports pairing saturation temperature value, when temperature is that compressor capacity need not be adjusted between B and C.Existing: A＜B＜C; Ice cold accumulation machine set compressor output can be adjusted according to the corresponding resize ratio of following table.
| Ice-reserving mode compression machine fan-out capability is adjusted form | |
| The saturation temperature of low pressure correspondence (℃) | Compressor capacity is adjusted |
| ≤A | -10％ |
| ＞A&＜B | -5％ |
| ≥B&≤C | 0 |
| ＞C | +5％ |
The pressure sensor of system configuration detects the low pressure size in real time, by looking into the saturation temperature T that hot rerum natura table obtains this low voltage value correspondence, in master controller, temperature T and A, B, C are compared, according to last table compressor capacity is adjusted again, the saturation temperature of moving the low pressure correspondence is controlled between B and the C effectively.
Ability adjusting range and revocable can be revised the requirement difference of cold-storage unit according to the user in the last table, and the value of same A, B and C also can be revised; Such as, above-mentioned compressor ability adjusting range can change into more than-10% successively respectively, more than-5%, more than 0 and 5%.In addition,, adjust to optimum value faster, can set up temperature spot in order to make system response speed faster.Describe for example below:
Give an example one: on the multi-joint unit of certain 30kW ice cold-storage, ability control wishes to make the corresponding saturation temperature of low pressure to be not less than-10 ℃ ∽-12 ℃, if in a single day low pressure be lower than-12 ℃, or above-10 ℃, then ability output is adjusted immediately, until low voltage control between-10 ℃ of ∽-12 ℃.
| Ice-reserving mode compression machine fan-out capability is adjusted form | |
| The corresponding saturation temperature of low pressure (℃) | Ability is adjusted |
| ≤-15 | -10％ |
| ＞-15&≤-12 | -5％ |
| ＞-12&≤-10 | 0 |
| ＞-10 | +5％ |
-15 ℃ is the auxiliary temperature value in the table, and it is set according to the actual conditions of system by the designer, and whether desirable ratio-12 ℃ little a certain value, value rationally will influence the speed that compressor is adjusted.
Give an example two: the control point that can increase temperature range reaches better control effect, the also corresponding increase of the complexity of controller.On the multi-joint unit of another 30kW ice cold-storage, also done following test:
| Ice-reserving mode compression machine fan-out capability is adjusted form | |
| The corresponding saturation temperature of low pressure (℃) | Ability is adjusted |
| ≤-15 | -10％ |
| ＞-15&≤-12 | -5％ |
| ＞-12&≤-10 | 0 |
| ＞-10&≤-5 | +5％ |
| ＞-5 | +10％ |
Test result shows that system response speed is faster.
Increased by 5 ℃ of auxiliary temperature values in this example, it is also set according to the compression type by the user, and whether desirable ratio-10 ℃ big a certain value, value rationally will influence the speed that compressor is adjusted.
Illustrate by these two examples: the present invention can have some other distortion or improvement, for example controls the interval or division of increase (minimizing) temperature range of different saturation temperatures.Equally, the saturation temperature of above-mentioned low pressure correspondence also can low voltage value replace, and can reach control compressor output effect of the present invention equally by a transfer process.If those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present invention makes, all belong to the protection domain of claims of the present invention.
Claims (3)
1, a kind of output control method for ice cold accumulation machine set compressor, it is characterized in that, according to the saturation temperature value of user, comprising two normal temperature value B, C and at least one auxiliary temperature value at least three low pressure correspondences of requirements set of compressor capacity output, wherein, B＜C; When the corresponding saturation temperature of the actual low pressure of compressor during less than B, compressor capacity is reduced more than 5%; When the corresponding saturation temperature of the actual low pressure of compressor during greater than B and smaller or equal to C, compressor capacity need not to adjust; When the corresponding saturation temperature of the actual low pressure of compressor during greater than C, compressor capacity raises more than 5%.
2, a kind of according to the described output control method for ice cold accumulation machine set compressor of claim 1, it is characterized in that, according to the saturation temperature value of user to three low pressure correspondences of requirements set of compressor capacity output, comprising two normal temperature value B, C and an auxiliary temperature value A, wherein, A＜B＜C; When the corresponding saturation temperature of the actual low pressure of compressor is less than or equal to A, compressor capacity downward modulation 10%; When the corresponding saturation temperature of the actual low pressure of compressor during greater than A and less than B, compressor capacity downward modulation 5%; When the corresponding saturation temperature of the actual low pressure of compressor during greater than B and smaller or equal to C, compressor capacity need not to adjust; When the corresponding saturation temperature of the actual low pressure of compressor during greater than C, compressor capacity raises 5%.
3, a kind of according to the described output control method for ice cold accumulation machine set compressor of claim 2, it is characterized in that, the pressure sensor of system configuration detects the low pressure size in real time, by looking into the saturation temperature T that hot rerum natura table obtains this low voltage value correspondence, in master controller, this temperature T and A, B, C are compared, according to hot rerum natura table compressor capacity is adjusted again, the saturation temperature of moving the low pressure correspondence is controlled between B and the C effectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101239424A CN100458294C (en) | 2006-12-01 | 2006-12-01 | Output control method for compressor of ice storage unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101239424A CN100458294C (en) | 2006-12-01 | 2006-12-01 | Output control method for compressor of ice storage unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1971156A true CN1971156A (en) | 2007-05-30 |
| CN100458294C CN100458294C (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101239424A Active CN100458294C (en) | 2006-12-01 | 2006-12-01 | Output control method for compressor of ice storage unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042787A (en) * | 2015-08-06 | 2015-11-11 | 广东美的暖通设备有限公司 | Method and system for controlling compressor in air-cooled heat pump water chilling and heating machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311585A (en) * | 1997-05-12 | 1998-11-24 | Chubu Electric Power Co Inc | Demand controller for hat storage type air conditioner |
| JPH11223360A (en) * | 1998-02-10 | 1999-08-17 | Mitsubishi Electric Corp | Air-conditioning system and its operation control method |
| CN1284609A (en) * | 1999-08-11 | 2001-02-21 | 霍斯特公司 | Speed changeable compressor drive |
| JP2001227793A (en) * | 2000-02-14 | 2001-08-24 | Hitachi Ltd | Ice storage type heat source unit |
| JP3954781B2 (en) * | 2000-08-03 | 2007-08-08 | 三洋電機株式会社 | Operation method of ice heat storage air conditioner and ice heat storage air conditioner |
| CN1259536C (en) * | 2004-02-26 | 2006-06-14 | 上海交通大学 | Carbon dioxide refrigerator |
| JP2005282993A (en) * | 2004-03-30 | 2005-10-13 | Mitsubishi Heavy Ind Ltd | Ice heat storage type air conditioner, and heat storage control method for ice heat storage type air conditioner |
| CN100356113C (en) * | 2005-12-16 | 2007-12-19 | 珠海慧生能源技术发展有限公司 | Dynamic ice-storage energy saving unit |
| CN1825011A (en) * | 2006-04-04 | 2006-08-30 | 珠海格力电器股份有限公司 | Ice storage unit, air conditioning system using same and control method thereof |
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2006
- 2006-12-01 CN CNB2006101239424A patent/CN100458294C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042787A (en) * | 2015-08-06 | 2015-11-11 | 广东美的暖通设备有限公司 | Method and system for controlling compressor in air-cooled heat pump water chilling and heating machine |
| CN105042787B (en) * | 2015-08-06 | 2018-06-05 | 广东美的暖通设备有限公司 | The control method and control system of compressor in air-cooled heat pump cold-hot water machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100458294C (en) | 2009-02-04 |
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