CN104456836B - Method for controlling orderly power utilization of central air conditioner based on load relation - Google Patents
Method for controlling orderly power utilization of central air conditioner based on load relation Download PDFInfo
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- CN104456836B CN104456836B CN201410608540.8A CN201410608540A CN104456836B CN 104456836 B CN104456836 B CN 104456836B CN 201410608540 A CN201410608540 A CN 201410608540A CN 104456836 B CN104456836 B CN 104456836B
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- control
- air
- air conditioner
- temperature
- load
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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
- F24F11/30—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
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a method for controlling the orderly power utilization of a central air conditioner based on a load relation. The method comprises the following steps that (1) the sampling frequency and sampling time of an air conditioner load are determined, the sampling frequency is 8 K, and the sampling time is not smaller than 0.05 ms; (2) whether the current load exceeds a set threshold value or not is judged, wherein A, if the current load exceeds the set threshold value, a control mode is determined and comprises flexible control and rigid control, tripping operation is directly carried out if rigid control is adopted, and whether the work state of the air conditioner is cooling or heating is determined if flexible control is adopted; B, if the current load does not exceed the set threshold value, whether the air conditioner is in the load control process or not is judged, and if the air conditioner is in the load control process, switching on is carried out, and the air conditioner is under flexible control to restore the state. The method has the advantages that management and control over the orderly power utilization are achieved on the premise of not influencing the use effect of the air conditioner to the greatest extent, and the method is easier for non-industrial users to accept; meanwhile, in an emergency, when the load needs to be reduced quickly, the mode of carrying out direct tripping operation through rigid control can be adopted.
Description
Technical field
The present invention is a kind of control method of the central air-conditioning ordered electric based on load relation, belongs to distribution and control sets
Standby technical field.
Background technology
Before, for non-technical family also without effective ordered electric scheme.And the power consumption of central air-conditioning is in this portion
Occupy very big proportion in point user's total electricity consumption, when Utilities Electric Co. needs to use electricity in off-peak hours, the often side simply to ration the power supply
Formula notifies user to reduce load.Real-time and accuracy can not be accomplished, while bringing puzzlement to user.
The content of the invention
Proposed by the present invention is a kind of control method of the central air-conditioning ordered electric based on load relation, and its purpose is intended to
Overcome the drawbacks described above existing for prior art, realize ordered electric fine-grained management.
The technical solution of the present invention：Based on the control method of the central air-conditioning ordered electric of load relation, including such as
Lower step：
（1）Determine sample frequency and the sampling time of air conditioner load；Sample frequency 8K, the sampling time is not less than 0.05ms；
（2）Judge whether current loads exceed and threshold value be set,
A, if exceed arranging threshold value, it is determined that control mode, the control mode includes Flexible Control or rigidity control；If
Then directly tripped using rigidity control；
Then should determine that air-conditioning work state is freezed or heated according to Flexible Control,
1）Determine that air-conditioning work state is refrigeration, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference（Return
Coolant-temperature gage-leaving water temperature）If the temperature difference is not more than 0, and Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet that will be arranged
Temperature rises 2 degree, requires until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, flexibility
Control terminates；Conversely, Flexible Control Period Process is performed repeatedly,
2）Determine that air-conditioning work state is to heat, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference（Go out
Coolant-temperature gage-return water temperature）If the temperature difference is not more than 0, and Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet that will be arranged
Temperature lowers 2 degree, requires until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, flexibility
Control terminates；Conversely, Flexible Control Period Process is performed repeatedly；
B, not less than threshold value is arranged, then should judge whether during spatial load forecasting, if during spatial load forecasting,
Then close a floodgate, juxtaposition Flexible Control recovers state.
Advantages of the present invention：First by the interaction with central air-conditioning communications protocol, to adjust air-conditioner water outlet temperature and return
The coolant-temperature gage temperature difference reduces the load of central air conditioner main machine for means, can accomplish the Precise control to central air-conditioning, there is provided
A kind of that the control method that ordered electric is managed is realized on the premise of air-conditioning using effect is not affected as far as possible, non-technical family is more
It is acceptant；Meanwhile, when in case of emergency, the side that rigidity control directly trip can be passed through when needing quick reduction load
Formula.
Description of the drawings
Accompanying drawing 1 is based on the central air-conditioning ordered electric control flow chart of load relation.
Specific embodiment
As shown in Figure 1, a kind of control method of the central air-conditioning ordered electric based on load relation, including following step
Suddenly：
（1）Determine sample frequency and the sampling time of air conditioner load；Sample frequency 8K, the sampling time is not less than 0.05ms；
（2）Judge whether current loads exceed and threshold value be set,
A, if exceed arranging threshold value, it is determined that control mode, the control mode includes Flexible Control or rigidity control；If
Then directly tripped using rigidity control；
Then should determine that air-conditioning work state is freezed or heated according to Flexible Control,
1）Determine that air-conditioning work state is refrigeration, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference（Return
Coolant-temperature gage-leaving water temperature）If the temperature difference is not more than 0, and Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet that will be arranged
Temperature rises 2 degree.Require until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, it is flexible
Control terminates；Conversely, Flexible Control Period Process is performed repeatedly；
2）Determine that air-conditioning work state is to heat, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference（Go out
Coolant-temperature gage-return water temperature）If the temperature difference is not more than 0, and Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet that will be arranged
Temperature lowers 1 degree.Require until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, it is flexible
Control terminates；Conversely, Flexible Control Period Process is performed repeatedly；
B, not less than threshold value is arranged, then should judge whether during spatial load forecasting, if during spatial load forecasting,
Then close a floodgate, juxtaposition Flexible Control recovers state.
The rigidity control refers to the method that directly control air conditioner load is realized in tripping operation, Flexible Control refer to by and air-conditioning
Communications protocol interaction, realize air-conditioning homoiothermic, reach control air conditioner load method.
Example
Certain corporate office buildings is respectively 1#, 2# equipped with two central air conditioner main machines, and two central air-conditioning are housed accordingly
Intelligent monitoring terminal, to 1# Flexible Control is carried out.
August 19 day 9 point carries out protocol integrated test system in 51 minutes to No. 1 air-conditioner host within 2014（Flexible Control）, air-conditioning is for refrigeration
Pattern, now leaving water temperature is 7 degree, improves 2 degree of leaving water temperature, after control input, 10:Electric current when 00 is via 249.7A
Drop to 130A or so, load declines 47% or so.11: 13 timesharing, by leaving water temperature return to it is unmodified before；11 points of 30 minutes electricity
Stream is returned to 245A or so.
August 19 days 16 in 2014：32 points carry out protocol integrated test system to No. 1 air-conditioner host（Flexible Control）, air-conditioning is for refrigeration
Pattern, now leaving water temperature be 7 degree, return water temperature be 12 degree, by water outlet temperature setting be 12 degree, 16:41 timesharing current values connect
Closely it is 0A, now air-conditioner host is stopped transport；16:46 points are recovered leaving water temperature for 7 degree, 16：55 points of current values return to 210A or so.
Reached a conclusion by above example, by reconciling the temperature difference of air-conditioner water outlet temperature and return water temperature control is realized
The method of central air-conditioning load is practicable.
Claims (1)
1. a kind of control method of the central air-conditioning ordered electric based on load relation, is characterized in that comprising the steps：
（1）Determine sample frequency and the sampling time of air conditioner load；Sample frequency 8K, the sampling time is not less than 0.05ms；
（2）Judge whether current loads exceed and threshold value be set,
A, if exceed arranging threshold value, it is determined that control mode, the control mode includes Flexible Control or rigidity control；According to
Rigidity control then directly trips；
Then should determine that air-conditioning work state is freezed or heated according to Flexible Control,
1）Determine that air-conditioning work state is refrigeration, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference, i.e. backwater
Temperature-leaving water temperature, if the temperature difference is not more than 0, Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet temperature that will be arranged
Degree rises 2 degree, requires until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, flexible to control
System terminates；Conversely, Flexible Control Period Process is performed repeatedly；
2）Determine that air-conditioning work state is to heat, then first determine whether current air-conditioner water outlet temperature and the return water temperature temperature difference, i.e. water outlet
Temperature-return water temperature, if the temperature difference is not more than 0, Flexible Control terminates；If the temperature difference is more than zero, the air-conditioner water outlet temperature that will be arranged
Degree lowers 2 degree, requires until air conditioner load reaches restriction, or leaving water temperature is when heightening consistent with return water temperature, flexible to control
System terminates；Conversely, Flexible Control Period Process is performed repeatedly；
B, not less than threshold value is arranged, then should judge whether during spatial load forecasting, if during spatial load forecasting, closing
Lock, juxtaposition Flexible Control recovers state；
The rigidity control refers to the method that directly control air conditioner load is realized in tripping operation, and Flexible Control is referred to by logical with air-conditioning
News protocol interaction, realizes air-conditioning homoiothermic, the method for reaching control air conditioner load.
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| CN201410608540.8A CN104456836B (en) | 2014-11-04 | 2014-11-04 | Method for controlling orderly power utilization of central air conditioner based on load relation |
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| CN104456836B true CN104456836B (en) | 2017-04-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105020859B (en) * | 2015-08-04 | 2017-11-17 | 深圳供电局有限公司 | It is a kind of based on etc. comfort level loss principle central air-conditioning load cut down method for regulating temperature |
| CN105135623B (en) * | 2015-09-17 | 2018-03-30 | 国网天津节能服务有限公司 | A kind of central air-conditioning Control of decreasing load method for meeting peak load regulation network and users'comfort |
| CN105352108B (en) * | 2015-09-29 | 2019-03-08 | 中国电力科学研究院 | A kind of load optimal control method based on air conditioning electricity mode |
| CN105333581A (en) * | 2015-12-07 | 2016-02-17 | 江苏省电力公司 | Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner |
| CN114811878B (en) * | 2022-04-08 | 2023-12-26 | 珠海东之尼电子科技有限公司 | Air conditioner temperature control method, air conditioner remote controller and air conditioner |
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| CN102410680A (en) * | 2011-10-30 | 2012-04-11 | 合肥天鹅制冷科技有限公司 | Method for controlling thermal load response of water chilling unit |
| CN102927657A (en) * | 2012-11-28 | 2013-02-13 | 机械工业第三设计研究院 | Water temperature change control method by air-conditioner temperature change speed method |
| CN103375878A (en) * | 2012-04-26 | 2013-10-30 | 上海宝信软件股份有限公司 | Group control method for central air conditioning refrigerating unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4142182B2 (en) * | 1998-11-26 | 2008-08-27 | 株式会社不二工機 | Temperature control device |
| US20050155369A1 (en) * | 2004-01-15 | 2005-07-21 | Toshiba Carrier Corporation | Air conditioner |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410680A (en) * | 2011-10-30 | 2012-04-11 | 合肥天鹅制冷科技有限公司 | Method for controlling thermal load response of water chilling unit |
| CN103375878A (en) * | 2012-04-26 | 2013-10-30 | 上海宝信软件股份有限公司 | Group control method for central air conditioning refrigerating unit |
| CN102927657A (en) * | 2012-11-28 | 2013-02-13 | 机械工业第三设计研究院 | Water temperature change control method by air-conditioner temperature change speed method |
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