CN105333581A - Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner - Google Patents
Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner Download PDFInfo
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- CN105333581A CN105333581A CN201510887282.6A CN201510887282A CN105333581A CN 105333581 A CN105333581 A CN 105333581A CN 201510887282 A CN201510887282 A CN 201510887282A CN 105333581 A CN105333581 A CN 105333581A
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- Prior art keywords
- conditioner
- central air
- load
- air
- unit central
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
-
- 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
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a load-relation-based control method for orderly power utility of a multi-couple unit central air-conditioner. The method comprises the steps as follows: 1, the sampling frequency and the sampling time of the load of the air conditioner are determined; 2, if the current load exceeds the preset threshold value, protocol control is carried out, and the protocol control comprises two steps: A, the working mode of the air conditioner is read according to the protocol, and whether the working state of the air conditioner is refrigerating or heating is determined; B, the wind speed of indoor units is regulated to be in the lowest mode; C, in a refrigerating or heating mode, the preset temperatures of all indoor units are raised or lowered; and D, all the indoor units are shut; and 3, if the current load is lower than the preset threshold value, initial conditions of all the indoor units are recovered. The control method has the advantages as follows: by the aid of interaction with the communication protocol of the multi-couple unit central air-conditioner and by means of adjusting wind speeds, temperatures and on-off states of the indoor units, the overall load of the multi-couple unit central air-conditioner is reduced, so that precise control of the multi-couple unit central air-conditioner is achieved; and the multi-couple unit central air-conditioner is brought into orderly power utility management, and the application range is expanded.
Description
Technical field
The present invention is a kind of control method of the multiple central air-conditioning ordered electric based on load relation, belongs to distribution and control appliance technical field.
Background technology
For the ordered electric scheme at non-technical family, the power consumption of central air-conditioning occupies very large proportion in user's total electricity consumption in this section, when Utilities Electric Co. needs to use electricity in off-peak hours, often simply notifies that user is to reduce load in the mode of rationing the power supply.Be a kind of control of extensive style, can not accuracy be accomplished, bring puzzlement to user simultaneously.
Before, ordered electric control method for non-technical family central air-conditioning only considered for water chiller formula central air-conditioning, and use the number of users of VRV central air-conditioning and multiple central air-conditioning more in the market, reached over half through investigation accounting, and proportion about can come higher.Cause the central air-conditioning type and the limited amount that participate in demand response in summer.
Summary of the invention
What the present invention proposed is a kind of control method of the multiple central air-conditioning ordered electric based on load relation, the scope of application that its object is intended to overcome existing for the existing technology controlled for handpiece Water Chilling Units is narrow, the air-conditioning type supported is less, the problem that controlled air conditioner load amount is little.Realize the more general ordered electric fine-grained management of central air-conditioning.
Technical solution of the present invention: based on the control method of the multiple central air-conditioning ordered electric of load relation, comprise the steps:
1) sample frequency and the sampling time of air conditioner load is determined; Sample frequency 8khz, the sampling time is not less than 0.05ms;
(2) judge whether current loads exceedes and threshold value is set, threshold value is set if exceed, then multiple central air-conditioning is carried on an agreement control, comprise
A, reads air-conditioning work pattern by agreement, determines that air-conditioning work state is refrigeration or heats;
B, is adjusted to lowest mode by the wind speed of all indoor sets, judges whether air conditioner load drops in claimed range, if not, continues following steps;
C, under refrigeration mode, heightens the design temperature of each indoor set, gradually can approach maximum temperature limit value (32 DEG C); Under heating mode, turn down the design temperature of each indoor set, gradually can approach minimum temperature limit value 16 DEG C;
D, closes the operation of all indoor sets;
(3) if judge, current loads is lower than arranging threshold value and after control releasing, then recovering each indoor set reset condition.
Advantage of the present invention: first by and multiple central air-conditioning communications protocol mutual, to regulate the wind speed of each indoor set, temperature, on-off state for means are to reduce the integral load of multiple central air conditioner, the Precise control to multiple central air conditioner can be accomplished.Multiple central air-conditioning is brought into ordered electric management, expand the application category of central air-conditioning Flexible Control.
Accompanying drawing explanation
Accompanying drawing 1 is the multiple central air-conditioning ordered electric control flow chart based on load relation.
Detailed description of the invention
As shown in Figure 1, a kind of control method of the multiple central air-conditioning ordered electric based on load relation, comprises the steps:
1) sample frequency and the sampling time of air conditioner load is determined; Sample frequency 8khz, the sampling time is not less than 0.05ms;
(2) judge whether current loads exceedes and threshold value is set, threshold value is set if exceed, then multiple central air-conditioning is carried on an agreement control, comprise
A, reads air-conditioning work pattern by agreement, determines that air-conditioning work state is refrigeration or heats;
B, is adjusted to lowest mode by the wind speed of all indoor sets, judges whether air conditioner load drops in claimed range, if not, continues following steps.
C, under refrigeration mode, heightens the design temperature of each indoor set, gradually can approach maximum temperature limit value (32 DEG C); Under heating mode, turn down the design temperature of each indoor set, gradually can approach minimum temperature limit value (16 DEG C).
D, closes the operation of all indoor sets.
(3) if judge, current loads is lower than arranging threshold value and after control releasing, then recovering each indoor set reset condition.
Example, certain corporate office buildings is equipped with the off-premises station of 70 great Jin VRV air-conditionings, and indoor set quantity is 186, carries out agreement Flexible Control by control software design to it.
9: 58 on the 19th August in 2015 carries out protocol integrated test system (Flexible Control) to air-conditioner host, and figure below is No. 1 main frame curent change curve.The air-out wind speed of all indoor sets, for refrigeration mode, is now adjusted to minimum by air-conditioning.After wind speed is adjusted to low speed, electric current during 10:00 drops to about 210.5A by 249.7A, and load declines about 10%.10: 5 timesharing, be set as 28 degree by unified for the temperature of indoor set, within 10: 8, electric current drops to about 130A by 200.5A, and load declines about 30%.10: 10 timesharing, all shut down all indoor sets, and within 10: 13, electric current drops to 0.5A by 130A.10: 1, control to remove, recover the front state of regulation and control, when 10: 30, electric current gets back to 240A again.
Claims (1)
1., based on a control method for the multiple central air-conditioning ordered electric of load relation, it is characterized in that comprising the steps:
(1) sample frequency and the sampling time of air conditioner load is determined; Sample frequency 8khz, the sampling time is not less than 0.05ms;
(2) judge whether current loads exceedes and arrange threshold value, arrange threshold value if exceed, then carry on an agreement control, comprises
A, reads air-conditioning work pattern by agreement, determines that air-conditioning work state is refrigeration or heats;
B, is adjusted to lowest mode by the wind speed of indoor set;
C, under refrigeration mode, heightens the design temperature of each indoor set; Under heating mode, turn down the design temperature of each indoor set;
D, closes the operation of each indoor set;
(3) if judge, current loads is lower than arranging threshold value and after control releasing, then recovering each indoor set reset condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887282.6A CN105333581A (en) | 2015-12-07 | 2015-12-07 | Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887282.6A CN105333581A (en) | 2015-12-07 | 2015-12-07 | Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105333581A true CN105333581A (en) | 2016-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510887282.6A Pending CN105333581A (en) | 2015-12-07 | 2015-12-07 | Load-relation-based control method for orderly power utility of multi-couple unit central air-conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN105333581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253589A (en) * | 2018-01-03 | 2018-07-06 | 广东美的暖通设备有限公司 | Energy-saving control method, device and the storage medium of multi-online air-conditioning system |
| CN110940060A (en) * | 2019-12-16 | 2020-03-31 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit and power-limiting operation control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090069021A (en) * | 2007-12-24 | 2009-06-29 | 엘지전자 주식회사 | A central controller of multi air-conditioning system and a power control method thereof |
| CN103257571A (en) * | 2013-04-22 | 2013-08-21 | 东南大学 | Air conditioning load control strategy making method based on direct load control |
| CN104158289A (en) * | 2014-07-24 | 2014-11-19 | 许昌学院 | System and method for intelligent and progressive electricity utilization management based on intelligent and progressive utilization management device |
| CN204156608U (en) * | 2014-11-04 | 2015-02-11 | 江苏省电力公司 | Non-work user central air-conditioning ordered electric office terminal |
| CN204166332U (en) * | 2014-11-04 | 2015-02-18 | 江苏省电力公司 | Based on the central air conditioner TT&C system of load relation |
| CN104456836A (en) * | 2014-11-04 | 2015-03-25 | 江苏省电力公司 | Method for controlling orderly power utilization of central air conditioner based on load relation |
-
2015
- 2015-12-07 CN CN201510887282.6A patent/CN105333581A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090069021A (en) * | 2007-12-24 | 2009-06-29 | 엘지전자 주식회사 | A central controller of multi air-conditioning system and a power control method thereof |
| CN103257571A (en) * | 2013-04-22 | 2013-08-21 | 东南大学 | Air conditioning load control strategy making method based on direct load control |
| CN104158289A (en) * | 2014-07-24 | 2014-11-19 | 许昌学院 | System and method for intelligent and progressive electricity utilization management based on intelligent and progressive utilization management device |
| CN204156608U (en) * | 2014-11-04 | 2015-02-11 | 江苏省电力公司 | Non-work user central air-conditioning ordered electric office terminal |
| CN204166332U (en) * | 2014-11-04 | 2015-02-18 | 江苏省电力公司 | Based on the central air conditioner TT&C system of load relation |
| CN104456836A (en) * | 2014-11-04 | 2015-03-25 | 江苏省电力公司 | Method for controlling orderly power utilization of central air conditioner based on load relation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253589A (en) * | 2018-01-03 | 2018-07-06 | 广东美的暖通设备有限公司 | Energy-saving control method, device and the storage medium of multi-online air-conditioning system |
| CN108253589B (en) * | 2018-01-03 | 2020-11-06 | 广东美的暖通设备有限公司 | Energy-saving control method and device for multi-split air conditioning system and storage medium |
| CN110940060A (en) * | 2019-12-16 | 2020-03-31 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit and power-limiting operation control method thereof |
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Application publication date: 20160217 |