CN108286779A - A method of it adjusting air conditioner load variation based on duty cycle signals and reduces air-conditioning system power consumption - Google Patents
A method of it adjusting air conditioner load variation based on duty cycle signals and reduces air-conditioning system power consumption Download PDFInfo
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- CN108286779A CN108286779A CN201810080040.XA CN201810080040A CN108286779A CN 108286779 A CN108286779 A CN 108286779A CN 201810080040 A CN201810080040 A CN 201810080040A CN 108286779 A CN108286779 A CN 108286779A
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Abstract
The method that air conditioner load variation reduces air-conditioning system power consumption is adjusted based on duty cycle signals the invention discloses a kind of,Signal is controlled using duty cycle type,Control air-conditioning system works under duty ratio state,It is controlled under signal in duty cycle type,The working method of air-conditioning system is controlled the driving of signal,Also with the work status of duty ratio,The load limitation of air-conditioning system is changed in a certain range,Compressor is worked with nominal load always in the period of work,Export cold or heat,Relative to low-load operating condition,Compressor works the cold of output or heat at rated loads will be more,Using the method for the present invention,It can be designed to an energy-saving controller of air-conditioner,The controller detects temperature controller control signal condition in real time,Energy saving in running algorithm,It exports Energy Saving Algorithm and controls signal,The temperature controller of original system is replaced to control signal,Control air-conditioning system is run in the power save mode.
Description
Technical field
The present invention is a kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals, is belonged to
Heating ventilation and air conditioning industry (HVAC) technical field.
Background technology
In the annual energy consumption of public building, about 50% one 60% are consumed in Heating,Ventilating and Air Conditioning (containing Cooling and Heat Source) system,
And its energy-saving potential is very big, therefore saving idea should be established, new power-saving technology is constantly sought, heating ventilation and air tune are promoted
Industry (HVAC) the energy-saving application technology of saving development and realization, have a wide range of applications.
In HVAC industries, air-conditioning is the product for accounting for significant proportion.The core component of air-conditioning system is compressor, compressor
The proportion that the electric power that work is consumed in the case where making state accounts for entire air-conditioning system power consumption is quite big.It is close in the proportion of large-size air conditioning
50%, the proportion of minitype air conditioner is between 60%-90%.So any power-saving technology development for consuming electric power to compressor is more real
It is existing, more seem important and direct.
In the course of work of air-conditioning system, when system is just switched on, air-conditioning can be worked with full load condition, quickly be exported cold
(refrigeration) or heat (heating) are measured, to allow indoor temperature to be rapidly achieved desired temperature, improves comfort level.Air-conditioning is at full capacity
When working under state, compressor is also to operate at full capacity, and to export specified cold or heat, the electric power of compressor consumption is just
It is rated consumption electric power.With the increase of air-conditioner operation time, indoor temperature is gradually close to or up to desired temperature, cold or
Heat demand reduces, and air-conditioning system load is corresponding to be reduced.When air-conditioning system load be further decreased to setting value (such as 50% or
Person is lower, depends on the parameter setting of system), air-conditioning system can carry out compressor unloading action, allow compressor compared with low-load
Lower work, exports less cold or heat, to meet the needs of space temperature.Compressor works under unloaded state, that is, works
Compared under low-load, certain electric power can be also consumed.It is also work in relatively low compress under load machine even frequency-conversion air-conditioning system
Under slow-speed of revolution pattern, reduce power consumption.
Invention content
In view of the deficienciess of the prior art, one kind of the present invention, which being based on duty cycle signals, adjusts air conditioner load variation reduction
The method of air-conditioning system power consumption, it is characterised in that：Signal is controlled using duty cycle type, control air-conditioning system is in duty ratio state
Under work, duty cycle type control signal under, the working method of air-conditioning system is controlled the driving of signal, also to account for
The work status of empty ratio in a certain range changes the load of air-conditioning system limitation, compressor work period always
It is worked with nominal load, exports cold or heat, relative to low-load operating condition, compressor works defeated at rated loads
The cold or heat gone out is more, and the cold or under conditions of certain heat demand in room, this control mode makes the work of compressor
Time reduces.
Further, the duty ratio of Energy Saving Algorithm output signal and frequency can flexibly change, according to the need of air-conditioning system
It wants, the dutyfactor value and frequency of output signal can be fixed, and can also change, for realizing the effective of use space temperature change
Control.
Further, the enabling signal period of signal is controlled in temperature controller, applies control signal, substitution temperature controller control letter
Number, to control air-conditioning system, to realize the compatibility to air-conditioning original control system, the enabling signal period of signal is controlled in temperature controller
Interior, Energy Saving Algorithm operation generates Energy Saving Algorithm and controls signal, which controls the enabling signal of signal substitution temperature controller,
Control air-conditioning system works under Energy Saving Algorithm.
Further, a kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals
It can be adapted for single-stage or multistage cooling or pump type heat central air-conditioning/domestic air conditioning, be equally applicable to gas heating system, electric heating
Heating system and boiler system.
A kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals of the present invention is beneficial
Effect is as follows：
A kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals, using the present invention
Method can be designed to that an energy-saving controller of air-conditioner, the controller detect temperature controller control signal condition, energy saving in running in real time
Algorithm, output Energy Saving Algorithm control signal, replace the temperature controller of original system to control signal, control air-conditioning system is in the power save mode
Operation.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1, which is that the present invention is a kind of, to be adjusted based on duty cycle signals in the method that air conditioner load variation reduces air-conditioning system power consumption
Conventional air conditioning system operation load and power consumption relational graph.
Fig. 2, which is that the present invention is a kind of, to be adjusted based on duty cycle signals in the method that air conditioner load variation reduces air-conditioning system power consumption
Energy Saving Algorithm controls air-conditioning system operation load and power consumption relational graph under signal.
Fig. 3, which is that the present invention is a kind of, to be adjusted based on duty cycle signals in the method that air conditioner load variation reduces air-conditioning system power consumption
The air-conditioning system block diagram of Energy Saving Algorithm is added.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to
Specific implementation mode, the present invention is further explained.
- Fig. 3 is please referred to Fig.1, the present invention is provided a kind of changed based on duty cycle signals adjusting air conditioner load and reduces air-conditioning system
The method of system power consumption, it is characterised in that：Signal is controlled using duty cycle type, control air-conditioning system carries out under duty ratio state
Work, in the case where duty cycle type controls signal, the working method of air-conditioning system is controlled the driving of signal, also with duty ratio
Work status in a certain range changes the load of air-conditioning system limitation, compressor work period always with specified
Loaded work piece exports cold or heat, and relative to low-load operating condition, compressor works the cold of output at rated loads
Amount or heat are more, and the cold or under conditions of certain heat demand in room, this control mode makes the working time of compressor subtract
It is small.
Further, the duty ratio of Energy Saving Algorithm output signal and frequency can flexibly change, according to the need of air-conditioning system
It wants, the dutyfactor value and frequency of output signal can be fixed, and can also change, for realizing the effective of use space temperature change
Control.
Further, the enabling signal period of signal is controlled in temperature controller, applies control signal, substitution temperature controller control letter
Number, to control air-conditioning system, to realize the compatibility to air-conditioning original control system, the enabling signal period of signal is controlled in temperature controller
Interior, Energy Saving Algorithm operation generates Energy Saving Algorithm and controls signal, which controls the enabling signal of signal substitution temperature controller,
Control air-conditioning system works under Energy Saving Algorithm.
Further, a kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals
It can be adapted for single-stage or multistage cooling or pump type heat central air-conditioning/domestic air conditioning, be equally applicable to gas heating system, electric heating
Heating system and boiler system.
Fig. 1：Conventional air conditioning system operation load and power consumption relational graph, wherein：
Temperature controller controls signal：The output signal of temperature controller, the signal are applied to the compressor control unit of air-conditioning system,
Compressor control signal is exported by compressor control unit, controls the working condition of compressor (work stops).
Enabling signal：Temperature controller controls a kind of state of signal, and in this state, compressor is in running order, usually
Signal level under this state is high level.
Stop signal：Temperature controller controls a kind of state of signal, and in this state, compressor is in halted state, usually
Signal level under this state is low level.
System load：The workload of air-conditioning system depends on the temperature difference and pressure difference of compressor inlet and outlet, just starts
When booting, system can be run under full load；With the increase of running time, under compressor inlet and the temperature difference of outlet are continuous
Drop, system load gradually reduce.
System uninstallation point：With the increase of air-conditioner operation time, air-conditioning system load gradually reduces, when system load is dropped
As low as certain value (such as 50%, which depends on the setting of air-conditioning system), air-conditioning system can carry out unloading operation, into unloading
Working condition, after unloading the power consumption of air-conditioning system can also be reduced.
Compressor power consumption：Air-conditioning at runtime, if compressor is in running order, will consume electric power.
Full load condition power consumption：Air-conditioning system loads full load, the electric power of compressor operating consumption.
Unloaded state power consumption：Air-conditioning system is under unloaded state, the electric power of compressor operating consumption
Shutdown status：Air-conditioning using area temperature reaches setting value, and air-conditioning system can allow compressor to stop.Fig. 2:Energy saving calculation
Method controls air-conditioning system operation load and power consumption relational graph under signal, wherein：
Energy Saving Algorithm controls signal：Energy Saving Algorithm output signal, the signal are applied to the compressor control list of air-conditioning system
Member exports compressor control signal by compressor control unit, controls the working condition of compressor (work stops).
Enabling signal：Temperature controller controls a kind of state of signal, and in this state, compressor is in running order, usually
Signal level under the state is high level.
Stop signal：Temperature controller controls a kind of state of signal, and in this state, compressor is in halted state, usually
Signal level under the state is low level.
System load：The workload of air-conditioning system depends on the temperature difference and pressure difference of compressor inlet and outlet, just starts
When booting, system can be run under full load；With the increase of running time, under compressor inlet and the temperature difference of outlet are continuous
Drop, system load gradually reduce.
Compressor power consumption：Air-conditioning at runtime, if compressor is in running order, will consume electric power.
Full load condition power consumption：Air-conditioning system loads full load, the electric power of compressor operating consumption.
Shutdown status：Air-conditioning using area temperature reaches setting value, and air-conditioning system can allow compressor to stop.Fig. 3：Section is added
The air-conditioning system block diagram of energy algorithm, wherein：
Temperature controller：It is used for setting and monitoring the functional unit of indoor temperature in air-conditioning system.It can be set by temperature controller
The temperature of use space, while the temperature of use space can also be monitored.Temperature controller exports temperature signal control air-conditioning system
Working condition.
Temperature controller controls signal：The output signal of temperature controller, the signal are applied to the compressor control unit of air-conditioning system.
Compressor control signal is exported by compressor control unit, controls the working condition of compressor (work stops).
Energy-saving controller：Refer to the corresponding control unit of the patent, for detecting temperature controller and air-conditioning system state, applies special
Sharp Energy Saving Control signal.
Energy Saving Algorithm controls signal：After Energy Saving Control unit, the control signal of output.For replacing temperature controller to control
Signal is output to compressor control unit.
Compressor control unit:Compressor start or the control circuit for stopping function, generally in the low electricity of air-conditioning system
Intermediate pressure section.
Compressor control signal：The output signal of compressor control unit, startup or stopping for controlling compressor
Function.
Heat exchange：Two media carries out heat exchange region, is often referred to compressor refrigerant and carries out hot friendship with air or water
It changes.
Air feed/water pipe：Air feed/water lines between air-conditioning system and air-conditioning using area.
Return air/water pipe：Return air/water lines between air-conditioning system and air-conditioning using area.
Air-conditioning using area：Refer to the space that air-conditioning is used in building.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that come within the meaning and range of equivalency of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (4)
1. a kind of adjusting the method that air conditioner load variation reduces air-conditioning system power consumption based on duty cycle signals, it is characterised in that：It adopts
Signal is controlled with duty cycle type, control air-conditioning system works under duty ratio state, and signal is controlled in duty cycle type
Under, the working method of air-conditioning system is controlled the driving of signal, also with the work status of duty ratio, the load of air-conditioning system
Limitation changes in a certain range, and compressor is worked with nominal load always in the period of work, exports cold or heat,
Relative to low-load operating condition, compressor work at rated loads output cold or heat will it is more, in room cold or
Under conditions of heat demand is certain, this control mode makes the working time of compressor reduce.
2. a kind of changed based on duty cycle signals adjusting air conditioner load according to claim 1 reduces air-conditioning system power consumption
Method, it is characterised in that：The duty ratio and frequency of Energy Saving Algorithm output signal can flexibly change, according to the need of air-conditioning system
It wants, the dutyfactor value and frequency of output signal can be fixed, and can also change, for realizing the effective of use space temperature change
Control.
3. a kind of changed based on duty cycle signals adjusting air conditioner load according to claim 1 reduces air-conditioning system power consumption
Method, it is characterised in that：The enabling signal period of signal is controlled in temperature controller, applies control signal, substitution temperature controller control letter
Number, to control air-conditioning system, to realize the compatibility to air-conditioning original control system, the enabling signal period of signal is controlled in temperature controller
Interior, Energy Saving Algorithm operation generates Energy Saving Algorithm and controls signal, which controls the enabling signal of signal substitution temperature controller,
Control air-conditioning system works under Energy Saving Algorithm.
4. a kind of changed based on duty cycle signals adjusting air conditioner load according to claim 1 reduces air-conditioning system power consumption
Method, it is characterised in that：A kind of method adjusting air conditioner load variation reduction air-conditioning system power consumption based on duty cycle signals
It can be adapted for single-stage or multistage cooling or pump type heat central air-conditioning/domestic air conditioning, be equally applicable to gas heating system, electric heating
Heating system and boiler system.
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| CN201810080040.XA CN108286779A (en) | 2018-01-27 | 2018-01-27 | A method of it adjusting air conditioner load variation based on duty cycle signals and reduces air-conditioning system power consumption |
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| CN201810080040.XA CN108286779A (en) | 2018-01-27 | 2018-01-27 | A method of it adjusting air conditioner load variation based on duty cycle signals and reduces air-conditioning system power consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12020811B2 (en) | 2016-11-09 | 2024-06-25 | Dexcom, Inc. | Systems and methods for technical support of continuous analyte monitoring and sensor systems |
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| CN1924470A (en) * | 2005-09-02 | 2007-03-07 | 浙江工业大学 | Air conditioner controller with comfortable, energy-saving and healthy functions |
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| US20140229016A1 (en) * | 2013-02-12 | 2014-08-14 | Tendril Networks, Inc. | Setpoint adjustment-based duty cycling |
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