CN1449480A - Method and apparatus for controlling temperature and humidity, or temperature - Google Patents
Method and apparatus for controlling temperature and humidity, or temperature Download PDFInfo
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- CN1449480A CN1449480A CN01805270A CN01805270A CN1449480A CN 1449480 A CN1449480 A CN 1449480A CN 01805270 A CN01805270 A CN 01805270A CN 01805270 A CN01805270 A CN 01805270A CN 1449480 A CN1449480 A CN 1449480A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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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
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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
- F24F11/0008—Control or safety arrangements for air-humidification
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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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Abstract
A temperature control output branch unit D_MV_Temp outputs a controlled variable to a heating actuator Act1 when the controlled variable output MVT of a temperature controller PID_Temp is in a heating mode, and outputs it to a cooling actuator Act2 when the output MVT is in a cooling mode. A humidity control output branch unit D_MV_Hum outputs a controlled variable to a humidifying actuator Act3 when the controlled variable output MVH of a humidity controller PID_Hum is in a humidifying mode, and outputs it to the actuator Act2 when the output MVH is in a dehumidifying mode. A cooling output maximum value operation unit C_MAX gives whichever is larger of respective controlled variable outputs from the branch units D_MV_Temp and D_MV_Hum to the actuator Act2.
Description
Technical field
The present invention relates to a kind of device of controlling temperature/humidity or method of temperature and being used to control temperature/humidity or temperature, it utilizes in the temperature/humidity control system and adds thermal actuator, cooling actuator or humidification actuator, or in temperature control system, utilize add thermal actuator as main actuator and cooling actuator as secondary actuator, can realize the saving of energy.
Background technology
Air-conditioner control system in building and resemble construction thing thereof comprises cooler that is used to cool off and the heater that is used for heating.In order to increase comfort level, also humidity is controlled in many cases.In order to reach this purpose, described system also has the humidifier trip temperature/humidity control of going forward side by side, and can control temperature and humidity simultaneously by described temperature/humidity control.It should be noted that,, therefore, do not need extra dehumidifier because cooler has dehumidification function.Equally, in bathing pool, can utilize cooler, heater and humidifier to carry out temperature/humidity control with temperature/humidity control.
Moreover, if the output prograin of cooler is not high enough in the temperature control system of utilizing cooler and heater, but in for example having temperature controlled bathing pool, need such precise dose control again, this just need carry out precooling/add again thermal control, by described precooling/add again thermal control, cooler carries out sub-cooled, then heats the temperature that optimization is set by heater.
In above-mentioned temperature/humidity control system, carry out the humidity that output offset can make when cooler is used for cooling off to be produced and reduce to compensate, and the temperature that makes when cooler is used for dehumidifying to be produced reduces to be compensated by heater by humidifier.Yet,, will waste energy if carried out unsuitable output offset.Especially in the temperature/humidity control system, three kinds of actuators, just cooler, heater and humidifier are worked sometimes simultaneously, so that carry out output offset.This has just increased energy consumption.
Moreover, in the hot type temperature control system of precooling/again, at first carry out precooling and then heat and carry out output offset by heater by cooler, therefore,, will increase energy consumption if inappropriately carry out this output offset.
Summary of the invention
The present invention addresses the above problem, its objective is provides a kind of device of controlling temperature/humidity or method of temperature and being used for controlling temperature/humidity or temperature, by in the temperature/humidity control system or in temperature control system, minimizing output offset, can realize the energy saving.
In temperature/humidity control method of the present invention, the performance variable output that outputs to the cooling actuator in the performance variable output that adds thermal actuator and cooling actuator of temperature controller will be outputed to, with the humidification actuator that outputs to humidity controller with output to the performance variable output that outputs to the cooling actuator in the performance variable output of cooling actuator and compare, bigger performance variable outputs to the cooling actuator.This set has guaranteed that two actuator work are arranged at most in three actuators in the temperature/humidity control system.
In temperature-controlled process of the present invention, be input to as control variables from the performance variable output of the controller that is used to control heating and be used to control the Cooling Control device, and the ideal value that performance variable is exported outputed to as setting value be used to control the Cooling Control device.
Temperature/humidity control device of the present invention comprise be used to realize temperature controlled heating function add thermal actuator (Act1); Be used to realize the cooling actuator (Act2) of the dehumidification function of temperature controlled refrigerating function and humidity control; Be used to realize the humidification actuator (Act3) of the humidification function of humidity control; Be used to control the temperature controller (PID_Temp) of temperature; The humidity controller (PID_Hum) that is used for controlled humidity; Temperature control output branch units (D_MV_Temp), if the value of performance variable output is corresponding to heating mode, then described temperature control output branch units (D_MV_Temp) is used for and will exports (MVT) to adding thermal actuator by the performance variable of temperature controller output, if the value of performance variable output is corresponding to refrigerating mode, then described temperature control output branch units (D_MV_Temp) is used for the performance variable from temperature controller is outputed to the cooling actuator; Humidity control output branch units (D_MV_Hum), if the value of performance variable output is corresponding to adding wet model, then described humidity control output branch units (D_MV_Hum) is used for the performance variable output (MVH) from humidity controller is outputed to the humidification actuator, if the value of performance variable output is corresponding to dehumidification mode, then described humidity control output branch units (D_MV_Hum) is used for the performance variable from humidity controller is outputed to the cooling actuator; And cooling output maxima operation unit (C_MAX), it is arranged between temperature control output branch units and the cooling actuator and humidity is controlled between output branch units and the cooling actuator, be used for the performance variable of comparison, and be given to the bigger performance variable output of cooling actuator by temperature control output branch units and the output of humidity control output branch units.
Temperature/humidity control device of the present invention comprise be used to realize temperature controlled heating function add thermal actuator (Act1); Be used to realize the cooling actuator (Act2) of the dehumidification function of temperature controlled refrigerating function and humidity control; Be used to realize the humidification actuator (Act3) of the humidification function of humidity control; Be used for the control heating and send to the heating and temperature control device (PID_Temp1) that adds thermal actuator performance variable output (MV1); Be used for the control cooling and send to the chilling temperature controller (PID_Temp2) that cooling actuator performance variable is exported (MV2); Be used to control humidification and send to the humidification humidity controller (PID_Hum3) that humidification actuator performance variable is exported (MV3); Be used for the control dehumidifying and send to the dehumidifying humidity controller (PID_Hum4) that cooling actuator performance variable is exported (MV4); Be used for operating the temperature controller converting unit (CH_Temp) of chilling temperature controller at heating mode operation heating and temperature control device, at refrigerating mode; Be used in the humidity controller converting unit (CH_Hum) that adds wet model operation humidification humidity controller, operates the dehumidifying humidity controller at dehumidification mode; And cooling output maxima operation unit C_MAX, it is arranged between chilling temperature controller and the cooling actuator and dehumidifies between humidity controller and the cooling actuator, be used for the performance variable (MV2 of comparison by chilling temperature controller and the output of dehumidifying humidity controller, and provide the bigger performance variable that outputs to the cooling actuator MV4).
Temperature control equipment of the present invention comprise be used to realize temperature controlled heating function add thermal actuator (Act1); Be used to realize the cooling actuator (Act2) of temperature controlled refrigerating function; Be used for the control heating and send to the heating and temperature control device (PID_H) that adds thermal actuator performance variable output (MVH0); And chilling temperature controller (PID_C), its performance variable that is used for receiving by the output of heating and temperature control device is imported as control variables, ideal value by performance variable output is operated as setting value, and performance variable output (MVC0) is outputed to the cooling actuator as the result who operates.
Temperature/humidity control device of the present invention comprise be used to realize temperature controlled heating function add thermal actuator (Act1); Be used to realize the cooling actuator (Act2) of the dehumidification function of temperature controlled refrigerating function and humidity control; Be used to realize the humidification actuator (Act3) of the humidification function of humidity control; Be used to control the temperature controller (PID_Temp) of temperature; The humidity controller (PID_Hum) that is used for controlled humidity; Temperature control output branch units (D_MV_Temp), if the value of performance variable output is corresponding to heating mode, then described temperature control output branch units (D_MV_Temp) is used for the performance variable output (MVT) from temperature controller outputed to and adds thermal actuator, if the value of performance variable output is corresponding to refrigerating mode, then described temperature control output branch units (D_MV_Temp) is used for the performance variable from temperature controller is outputed to the cooling actuator; Humidity control output branch units (D_MV_Hum), if the value of performance variable output is corresponding to adding wet model, then described humidity control output branch units (D_MV_Hum) is used for the performance variable output (MVH) from humidity controller is outputed to the humidification actuator, if the value of performance variable output is corresponding to dehumidification mode, then described humidity control output branch units (D_MV_Hum) is used for the performance variable from humidity controller is outputed to the cooling actuator; Chilling temperature controller (PID_C), it is used for receiving performance variable output from temperature control output unit and imports as control variables, utilize the ideal value of performance variable output to operate, and performance variable output (MVC0) is outputed to the cooling actuator as the result who operates as setting value; And cooling output maxima operation unit (C_MAX2), its be arranged on cooling actuator and temperature control output branch units, humidity control output branch units, and the chilling temperature controller between, be used for the performance variable of comparison, and provide the bigger performance variable that outputs to the cooling actuator by temperature control output branch units, temperature control output branch units and the output of chilling temperature controller.
Description of drawings
Fig. 1 is the layout block diagram of the temperature/humidity control device of first embodiment of the invention;
Fig. 2 is for explaining the operational flowchart of temperature/humidity control device shown in Figure 1;
Fig. 3 is from the performance variable output of temperature controller and indicates from the graph of relation between the performance variable indicating value of temperature control output branch units;
Fig. 4 is from the performance variable output of humidity controller and from the graph of relation between the performance variable indicating value of humidity control output branch units;
Fig. 5 is the layout block diagram of the temperature/humidity control device of second embodiment of the invention;
Fig. 6 is the layout block diagram of the temperature control equipment of third embodiment of the invention;
Fig. 7 is for explaining the operational flowchart of temperature control equipment shown in Figure 6;
Fig. 8 is the example of temperature control equipment of third embodiment of the invention that is used to control the temperature in controlled temperature bath pond;
Figure 9 shows that the layout block diagram of the temperature/humidity control device of fourth embodiment of the invention;
Figure 10 is for explaining the operational flowchart of temperature/humidity control device shown in Figure 9;
The specific embodiment [first embodiment]
With reference to accompanying drawing, will describe embodiments of the invention in detail below.Figure 1 shows that the layout block diagram of the temperature/humidity control device of first embodiment of the invention.Described temperature/humidity control device shown in Figure 1 comprises the temperature controller PID_Temp that is used to control temperature; The humidity controller PID_Hum that is used for controlled humidity; Be used for temperature control output branch units D_MV_Temp from temperature controller PID_Temp branch and output function variable output MVT; Be used for humidity control output branch units D_MV_Hum from humidity controller PID_Hum branch and output function variable output MVH; Be used for comparison and export and maximum performance variable output is sent to the cooling output maxima operation unit C_MAX of cooling actuator Act2 from the performance variable of temperature control output branch units D_MV_Temp and humidity control output branch units D_MV_Hum; What be used to realize temperature controlled heating function adds thermal actuator Act1 such as heater; Be used to realize the cooling actuator Act2 such as the cooler of temperature controlled refrigerating function; And be used to realize the humidification actuator Act3 such as the humidifier of the humidification function of humidity control.The dehumidification function that should be noted that humidity control can be realized by cooling actuator Act2.
When the output offset of the output offset by suppressing heating/refrigerating function and humidification/dehumidification function is realized when energy-conservation, present embodiment can be applicable in the temperature/humidity control system of bathing pool (bathing pool of controlling as temperature/humidity) or indoor (in clean room or greenhouse) air.
To explain the course of work of the temperature/humidity control device of present embodiment below.Fig. 2 is the workflow diagram of temperature/humidity control device shown in Figure 1;
Beginning, temperature controller PID_Temp carries out the PID operation, so that calculating operation variable output MVT (step 101 among Fig. 2).Described temperature controller PID_Temp can be made of heating-cooling control logic usually.Heating-cooling is controlled to be a kind of control technology of selectively using heating function and refrigerating function.
In brief, described heating-cooling control is a kind of control method, by this method, if export MVT greater than 50% by the performance variable of temperature controller PID_Temp output, then operate and add thermal actuator Act1 according to performance variable output MVT, and if described performance variable output MVT for being less than or equal to 50%, then operates cooling actuator Act2 according to performance variable output MVT.
Equally, in described heating-cooling control, at the heating mode control period, be less than or equal to 50% if be changed to by the performance variable output MVT of temperature controller PID_Temp output, then pattern changes refrigerating mode at once into.At the refrigerating mode control period, if performance variable output MVT is changed to greater than 50%, then pattern changes heating mode at once into.
Therefore, when making performance variable outputting standardization to 0 to 100%, if at back to back last control cycle performance variable output MVT-1 greater than 50%, temperature controller PID_Temp determines to set heating mode.Temperature controller PID_emp is shown below at current control cycle utilization heating pid parameter calculating operation variable output MVT:
MVT=Kg1{1+1/ (Ti1 s)+Td1 s} (SPT-PVT) (1) wherein Kg1, Ti1, Td1 is respectively heated side proportional gain, the heated side time of integration and the heated side derivative time of temperature controller PID_Temp, SPT is a desired temperature, be used for the target (not shown) that design temperature controller PID_Temp controlled, and PVT is the variable (measured temperature) of the described target of control.Heated side proportional gain Kg1, the heated side Ti1 time of integration, heated side Td1 derivative time and desired temperature SPT can be presetted by the operator, and controlled variable PVT can measure by the temperature sensor (not shown).
Moreover if be less than or equal to 50% at back to back last control cycle performance variable output MVT-1, temperature controller PID_Temp determines to set refrigerating mode.Temperature controller PID_temp is shown below at current control cycle utilization cooling pid parameter calculating operation variable output MVT:
MVT=Kg2{1+1/ (Ti2 s)+Td2 s} (SPT-PVT) (2) wherein Kg2, Ti2, Td2 is respectively cold side proportional gain, the cold side time of integration and the cold side derivative time of temperature controller PID_Temp.Described cold side proportional gain Kg2, the cold side Ti2 time of integration and cold side Td2 derivative time can be presetted by the operator, and the process of step 101 has just been finished by this way.
Temperature control output branch units D_MV_Temp branch exports MVT by the performance variable of temperature controller PID_Temp output, and they are outputed to actuator Act1 and Act2 (step 102).
In step 102, if performance variable output MVT is greater than 50%, then temperature control output branch units D_MV_Temp determines to set heating mode, and to adding thermal actuator Act1 output function variable indicating value MV1, as shown in the formula:
MV1＝2(MVT-50) (3)
Moreover if performance variable output MVT is less than or equal to 50%, then temperature control output branch units D_MV_Temp determines to set refrigerating mode, and to cooling output maxima operation unit C_MAX output function variable indicating value MV2, as shown in the formula:
MV2＝2(MVT-50) (4)
By this way, just finished step 102.
Figure 3 shows that the graph of relation between performance variable output MVT and performance variable indicating value MV1 and MV2.As shown in Figure 3, temperature control output branch units D_MV_Temp is 0 to 100% MV1 or MV2 value by being converted into the controlled variable indicating value, and the output function variable is exported MVT.
Then, humidity controller PID_Hum carries out the PID operation, so that calculating operation variable output MVH (step 103).Described humidity controller PID_Hum is made of heating-cooling control logic usually.In described heating-cooling control,, then operate humidification actuator Act3 according to performance variable output MVH if export MVH greater than 50% from the controlled variable of humidity controller PID_Hum.If controlled variable output MVH is less than or equal to 50%, then operate cooling actuator Act2 according to performance variable output MVH.
Moreover in described heating-cooling control, if performance variable output MVT is less than or equal to 50% at the control period that adds wet model, then pattern is converted to dehumidification mode immediately.If greater than 50%, then pattern is converted to and adds wet model performance variable output MVT immediately at the control period of dehumidification mode.
Therefore, when making the performance variable outputting standard turn to 0 to 100%, if export MVH-1 greater than 50% at back to back last control cycle performance variable, then humidity controller PID_Hum determines that setting adds wet model.Humidity controller PID_Hum utilizes humidification pid parameter calculating operation variable output MVT at current control cycle, is shown below:
MVH=Kg3{1+1/ (Ti3s)+Td3s} (SPH-PVH) (5) wherein Kg3, Ti3, Td3 is respectively adding the green end proportional gain, add the green end time of integration and adding green end derivative time of humidity controller PID_Hum, SPH is a humidity set point, be used for setting the target (not shown) of being controlled by humidity controller PID_Hum, and PVH is the variable (moisture measurement value) of the described target of control.Add green end proportional gain Kg1, add the green end Ti1 time of integration, add green end Td1 derivative time and humidity set point SPH can be presetted by the operator, and controlled variable PVH can measure by the humidity sensor (not shown).
Moreover if be less than or equal to 50% at back to back last control cycle performance variable output MVH-1, humidity controller PID_Hum determines to set dehumidification mode, and at current control cycle utilization dehumidifying pid parameter calculating operation variable output MVH, is shown below:
MVH=Kg4{1+1/ (Ti4s)+Td4s} (SPH-PVH) (6) wherein Kg4, Ti4, Td4 is respectively removing the green end proportional gain, remove the green end time of integration and removing green end derivative time of humidity controller PID_Hum.Describedly remove green end proportional gain Kg4, remove the green end Ti4 time of integration and remove green end Td4 derivative time and can be presetted by the operator, the process of step 103 has just been finished by this way.
Humidity control output branch units D_MV_Hum branch exports MVH from the performance variable of humidity controller PID_Hum, and they are outputed to actuator Act2 and Act3 (step 104).
In step 104, if performance variable is exported MVH greater than 50%, then definite setting of humidity control output branch units D_MV_Hum adds wet model, and to humidification actuator Ac3 output function variable indicating value MV3, is shown below:
MV3＝2(MVH-50) (7)
Moreover if performance variable output MVH is less than or equal to 50%, then humidity control output branch units D_MV_Hum determines to set dehumidification mode, and to cooling output maxima operation unit C_MAX output function variable indicating value MV4, is shown below:
MV4＝2(MVT-50) (8)
By this way, just finished step 104.
Figure 4 shows that the graph of relation between performance variable output MVH and performance variable indicating value MV3 and MV4.As shown in Figure 4, humidity control output branch units D_MV_Hum is converted to and is operating as 0 to 100% performance variable indicating value MV1 or MV2 and exports by performance variable being exported MVH.
Then, cooling output maxima operation unit C_MAX calculates by the performance variable indicating value MV2 of temperature control output branch units D_MV_Temp output with by the maximum MV2x of the performance variable indicating value MV4 of humidity control output branch units D_MV_Hum output, and maximum MV2x is outputed to cooling actuator Act2 (step 105).
That is to say, performance variable indicating value MV2 is outputed to cooling actuator Act2 as maximum MV2x if performance variable indicating value MV2, then cools off output maxima operation unit C_MAX greater than performance variable indicating value MV4.If performance variable indicating value MV2 is less than or equal to performance variable indicating value MV4, then cooling output maxima operation unit C_MAX outputs to cooling actuator Act2 with performance variable indicating value MV4 as maximum MV2x.
Above-mentioned step 101 to 105 has been formed a control cycle process, and the process in each control cycle repeating said steps 101 to 105.
As mentioned above, in the interlocked operation of temperature controller PID_Temp and temperature control branch units D_MV_Temp, according to general heating-cooling control logic, calculate and output to the performance variable indicating value MV1 that adds thermal actuator Act1 and arrive the performance variable indicating value MV2 that cools off actuator Act2.Owing to use heating-cooling control logic, described performance variable indicating value MV1 and MV2 generally can be simultaneously greater than 0%.
As mentioned above, in the interlocked operation of humidity controller PID_Hum and humidity control branch units D_MV_Hum, according to general heating-cooling control logic, calculate and output to the performance variable indicating value MV3 of humidification actuator Act3 and arrive the performance variable indicating value MV4 that cools off actuator Act2.Owing to use heating-cooling control logic, described performance variable indicating value MV3 and MV4 generally can be simultaneously greater than 0%.
Be specifically designed to temperature control owing to add thermal actuator Act1, the performance variable indicating value MV1 that is calculated at temperature control end (temperature controller PID_Temp and temperature control output branch units D_MV_Temp) is directly outputed to adds thermal actuator Act1.
Be specifically designed to humidity control owing to add thermal actuator Act3, the performance variable indicating value MV3 that is calculated at humidity control end (humidity controller PID_Hum and humidity control output branch units D_MV_Hum) is directly outputed to humidification actuator Act3.
Cooling actuator Act2 both had been used for temperature control and also had been used for humidity control.Therefore, cooling output maxima operation unit C_MAX calculates the performance variable indicating value MV2 that calculates in temperature control side and the maximum MV2x of the performance variable indicating value MV4 that calculates in humidity control side.Described maximum MV2x is output to cooling actuator Act2.
Less than the performance variable indicating value MV4 that calculates in humidity control side, the output of then arriving cooling actuator Act2 is excessive as if the performance variable indicating value MV2 that calculates in temperature control side, that is to say, with regard to temperature control side, undercooling.Therefore, set value SPT than in time little for measured temperature PVT.PID_Temp is transformed into heating mode from refrigerating mode with temperature controller, and exports big 50% performance variable output MVT.As a result, be output to greater than 0% performance variable indicating value MV1 and add thermal actuator Act1.
On the other hand, less than the performance variable indicating value MV2 that calculates in temperature control side, the output of then arriving cooling actuator Act2 is excessive as if the performance variable indicating value MV4 that calculates in humidity control side, that is to say, with regard to humidity control side viewpoint, dehumidifies excessively.Therefore, moisture measurement value PVH sets value SPH than in time little.Humidity controller PID_Hum is transformed into from dehumidification mode adds wet model, and export big 50% performance variable output MVH.As a result, be output to humidification actuator Act3 greater than 0% performance variable indicating value MV3.
In the temperature/humidity control system of above-mentioned layout, might maximum guarantee that two actuator work are at most only arranged in three actuators.One of them generation that this has just limited the output offset that relates to temperature controlled heating/refrigerating function reliably and has related to the humidification/dehumidifying output offset of humidity control.As a result, on the whole to the temperature/humidity control system, might realize control, thereby realize energy-conservation near minimum output.[second embodiment]
Figure 5 shows that the layout block diagram of the temperature/humidity control device of second embodiment of the invention.The label identical with Fig. 1 represented identical parts.Temperature/humidity control device shown in Figure 5 comprises the heating and temperature control device PID_Temp1 that is used to control heating, be used to control the chilling temperature controller PID_Temp2 of cooling, be used to control the humidification humidity controller PID_Hum3 of humidification, be used to control the dehumidifying humidity controller PID_Hum4 of dehumidifying, the temperature control converting unit CH_Temp that is used for switching controller PID_Temp1 and PID_Temp2, the humidity control converting unit CH_Hum that is used for switching controller PID_Hum3 and PID_Hum4, cooling output maxima operation unit C_MAX, add thermal actuator Act1, cooling actuator Act2 and humidification actuator Act3.
A purpose of present embodiment is an air-conditioner control system.For example, controller PID_Tem1 is the air-conditioning heating controller, and controller PID_Tem2 is the air-conditioning cooling controller, and controller PID_Hum3 is the air-conditioner humidifying controller, and controller PID_Hum4 is the air conditioner dehumidification controller.
When producing the heating request, temperature control converting unit CH_Temp operation heating and temperature control device PID_Temp1.Described heating and temperature control device PID_Temp1 calculates in the identical mode of being explained with first embodiment of equation (1) and is used to be heated to be 0 to 100% performance variable output MV1.
When producing the cooling request, temperature control converting unit CH_Temp operation chilling temperature controller PID_Temp2.Described chilling temperature controller PID_Temp2 calculates in the identical mode of being explained with first embodiment of equation (2) and is used to be cooled to 0 to 100% performance variable output MV2.
When producing the humidification request, humidity control converting unit CH_Hum operation humidification humidity controller PID_Hum3.Described humidification humidity controller PID_Hum3 calculates in the identical mode of being explained with first embodiment of equation (5) that to be used for humidification be 0 to 100% performance variable output MV3.
When producing the dehumidifying request, humidity control converting unit CH_Hum operation dehumidifying humidity controller PID_Hum4.Described dehumidifying humidity controller PID_Hum4 calculates in the identical mode of being explained with first embodiment of equation (6) that to be used to dehumidify be 0 to 100% performance variable output MV4.
The cooling output maxima operation unit C_MAX and first embodiment are identical.By this way, in air-conditioner control system, just obtained the effect identical with first embodiment.[the 3rd embodiment]
Figure 6 shows that the layout block diagram of the temperature control equipment of third embodiment of the invention.Described temperature control equipment shown in Figure 6 comprises the heating and temperature control device PID_H that is used to control heating, described heating and temperature control device PID_H receives by the performance variable of heating and temperature control device PID_H output and imports as controlled variable, and utilizes the ideal value executable operations of performance variable output as setting value; Chilling temperature controller PID_C; Add thermal actuator Act1 such as heater; Reach cooling actuator Act2 such as cooler.
When realizing by the output offset that suppresses heating/cooling when energy-conservation, present embodiment may be used on being used for using the temperature control system in hot type controlled temperature bath pond of the precooling of cooler and heater/again.
To explain the operating process of the temperature control equipment of present embodiment below.Fig. 7 is the interpretation work flow chart of temperature control equipment shown in Figure 6.
Beginning, heating and temperature control device PID_H carries out PID and operates calculating operation variable output MVH0 (Fig. 7 step 201), and is as follows:
MVH0=KgH{1+1/ (TiH s)+TdH s} (SPT-PVT) (9) wherein KgH, TiH, TdH is respectively proportional gain, the time of integration and the derivative time of heating and temperature control device PID_H.SPT is a desired temperature, is used for the target (not shown) that setting controller PID_H controlled, and PVT is the variable (measured temperature) of the control of the described target of control.Proportional gain KgH, the time of integration TiH, derivative time, TdH and desired temperature SPT can be presetted by the operator, and controlled variable PVT can measure by the temperature sensor (not shown).
Heating and temperature control device PID_H outputs to the performance variable output MVH0 that is calculated and adds thermal actuator Act1 and chilling temperature controller PID_C.
Described cooling controller PID_C carries out PID and operates calculating operation variable output MVC0 (step 202), and is as follows:
MVC0＝KgC{1+1/(TiC?s)+TdC?s}(SP1-PV1) (10)
Wherein KgC, TiC, TdC are respectively proportional gain, the time of integration and the derivative time of chilling temperature controller PID_C.SP1 is the setting value of described controller PID_C, and PV1 is the variable of the control of described controller PID_C.Proportional gain KgC, the time of integration TiC, derivative time, TdC was predeterminable fixed.
As setting value SP1 value given in advance is the ideal value (when performance variable output MVH0 is standardized as 0 to 100%, as 10%) of performance variable output MVH0, can realize that by described ideal value energy is saved and temperature control.
Moreover chilling temperature controller PID_C utilizes the performance variable MVH0 by heating and temperature control device PID_H output to carry out the calculating of equation (10) as controlled variable PV1.
Chilling temperature controller PID_C exports MV0 with performance variable and outputs to cooling actuator Act2.
Above-mentioned steps 201 and 202 has been formed a control cycle process, and in each control cycle process described in the repeating step 201 and 202.
The temperature control system use adds thermal actuator Act1 and controls actuator as temperature.If the lower temperature side of the temperature range that will control can not finely be cooled off naturally, then being necessary provides fluid (as air) to cool off by cooling actuator Act2.If the output from described cooling actuator Act2 has enough accuracy and has precise dose control like this, then it is fit to be applied to general heating-cooling control.Yet if not enough from the output prograin of cooling actuator Act2, after the utilization cooling actuator Act2 precooling, utilization adds thermal actuator Act1 and heats.In this case, the heater of heating is output as temperature controlled performance variable again.
Figure 8 shows that the example figure of the temperature control equipment of the temperature controlled present embodiment that is used for the controlled temperature bath pond.In described controlled temperature bath pond, add thermal actuator Act1 and heat, and the hydronic air of cooling actuator Act2.
The performance variable output MVH0 that heating and temperature control device PID_H is used to heat according to the PID logical calculated.
In order to realize that the output that adds thermal actuator Act1 by reduction obtains cooling effect, when the performance variable MVH0 by heating and temperature control device PID_H output is at least 10%, must add thermal control again.Utilize the described performance variable output MVH0 that is used to heat to control and be used for pre-cooled cooling actuator Act2 as control variables.
That is to say that chilling temperature controller PID_C uses the ideal value of heating and temperature control device PID_H heating operation variable output MVH0 as setting value SP1; Use actual heating operation variable output MVH0 as control variables PV1, and according to PID logical calculated performance variable output MVC0.
If the performance variable that is used to heat output MVH0 is higher than ideal value (setting value) SP1, it is excessive then to utilize cooling actuator Act2 to carry out precooling.In this case, the function of chilling temperature controller PID_C is for reducing performance variable output MVC0.So just reduced pre-cooled effect, and be necessary that the heating operation variable output MVH0 that heats has again also reduced the rising of control variables PVT.Therefore, performance variable output MVH0 is near equaling ideal value SP1.
On the other hand, if the performance variable that is used to heat output MVH0 is lower than ideal value SP1, it is insufficient then to utilize cooling actuator Act2 to carry out precooling.In this case, the function of chilling temperature controller PID_C is rising performance variable output MVC0.This has just increased pre-cooled effect, and the necessary heating controlled variable output MVH0 that is used for heating again the reducing of control variables PVT that also raise.Therefore, performance variable output MVH0 is near equaling ideal value SP1.
If the operator is transformed into high value with desired temperature SPT from low value, produce the heating request, therefore, heating and temperature control device PID_H rising performance variable output MVH0.Because MVH0 is than ideal value SP1 height in the performance variable that is used to heat output, chilling temperature controller PID_C has determined predetermined undercooling, and its function is to reduce its performance variable output MVC0.Therefore, cooling actuator Act2 work is not so that disturb heating.
On the other hand, if the operator is transformed into low value with desired temperature SPT from the high value, produce the cooling request, therefore, heating and temperature control device PID_H reduces performance variable output MVH0.Because MVH0 is lower than ideal value SP1 in the performance variable that is used to heat output, chilling temperature controller PID_C has determined that predetermined cooling is insufficient, and its function is the described performance variable output MVC0 that raises.Therefore, cooling actuator Act2 work is so that quicken cooling.
Use add thermal actuator Act1 as main actuator and the cooling temperature control system of actuator Act2 as secondary actuator in, above-mentioned be provided with may keep pre-cooled/avoid in the heating again heating/output offset (excessively pre-cooled or insufficient pre-cooled) of refrigerating function.As a result, for temperature control system, might realize generally near the minimized control of output, thereby realize energy-conservation.In addition, owing to can or cool off proper handling cooling actuator Act2 when asking to produce, can obtain higher controllability in the heating request.[the 4th embodiment]
Figure 9 shows that the layout block diagram of the temperature/humidity control device of fourth embodiment of the invention.Temperature/humidity control device shown in Figure 9 comprises temperature controller PID_Temp; Humidity controller PID_Hum; Chilling temperature controller PID_C; Temperature control output branch units D_MV_Temp; Humidity control output branch units D_MV_Hum; Cooling output maxima operation unit C_MAX2, it is used for comparison by the performance variable of temperature control output branch units D_MV_Hum, humidity control output branch units D_MV_Hum and chilling temperature controller PID_C output, and maximum performance variable output is sent to cooling actuator Act2, adds thermal actuator Act1, cooling actuator Act2 and humidity actuator Act3.
Present embodiment has merged the first and the 3rd above-mentioned embodiment.That is to say, when the output offset of the output offset by suppressing heating/refrigerating function and humidification/dehumidification function is realized when energy-conservation, present embodiment is applicable to the temperature/humidity control system, adds thermal actuator Act1, cooling actuator Act2 and the humidification actuator Act3 bathing pool as the temperature/humidity control of actuator such as utilization.
To explain the operation of the temperature/humidity control device of present embodiment below.Figure 10 is the operational flowchart of temperature/humidity control device shown in Figure 9.
Beginning, temperature controller PID_Temp carries out the PID operation, so that calculating operation variable output MVT (step 301 of Figure 10).The operation of temperature controller PID_Temp among this operation and first embodiment is identical.
Temperature control output branch units D_MV_Temp branch exports MVT by the performance variable of temperature controller PID_Temp output, and it is outputed to actuator Act1 and Act2 (step 302).This operation is identical with the operation that branch units D_MV_Temp is exported in the temperature control among first embodiment.
Then, humidity controller PID_Hum carries out the PID operation, so that calculating operation variable output MVH (step 303 of Figure 10).This operation is taken charge of fully mutually with the operation of humidity controller PID_Hum among first embodiment.
The performance variable MVH of branch units D_MV_Hum branch by humidity controller PID_Hum output exported in humidity control, and it is outputed to actuator Act2 and Act3 (step 304).This operation is identical with the operation that branch units D_MV_Hum is exported in the humidity control among first embodiment.
Next step, chilling temperature controller PID_C carries out the PID operation, so that calculating operation variable output MVC0 (step 305).The operation of chilling temperature controller PID_C among this operation and the 3rd embodiment is basic identical.Yet the setting value SP1 of value given in advance such as equation (10) is the ideal value of performance variable indicating value MV1, so just can realize energy-conservation and temperature control.Moreover temperature controller PID_C utilizes the performance variable indicating value MV1 by temperature control output branch units D_MV_Temp output to carry out the calculating of equation (10) as control variables PV1.
Then, cooling output maxima operation unit C_MAX2 calculates by the performance variable indicating value MV2 of temperature control output branch units D_MV_Temp output, by the performance variable indicating value MV4 of humidity control output branch units D_MV_Hum output and by the maximum MV2x among the performance variable output MVC0 of chilling temperature controller PID_C output, and described maximum MV2x is outputed to cooling actuator Act2 (step 306).
That is to say, if performance variable indicating value MV2, then cools off output maxima operation unit C_MAX2 setting operation variable indicating value MV2 greater than performance variable indicating value MV4 as maximum MV2x.If performance variable indicating value MV2 is equal to or less than performance variable indicating value MV4, then cooling output maxima operation unit C_MAX2 setting operation variable indicating value MV4 is as maximum MV2x.
And, if performance variable indicating value MV0, cools off output maxima operation unit C_MAX2 greater than maximum MV2x performance variable indicating value MV0 is outputed to cooling actuator Act2 as final maximum MV2x.If performance variable indicating value MV0 is equal to or less than maximum MV2x, cooling output maxima operation unit C_MAX2 directly outputs to maximum MV2x cooling actuator Act2.
Above-mentioned steps 301 to 306 has been formed the process of a control cycle, reaches the process to each control cycle repeating step 301 to 306.
In aforesaid present embodiment, chilling temperature controller PID_C utilize performance variable indicating value MV1 ideal value (as, 10%) as setting value SP1, utilize actual performance variable indicating value MV1 as control variables PV1, and according to PID logical calculated performance variable output MVC0.
Cooling output maxima operation unit C_MAX2, the cooler performance variable indicating value MV2 that is calculated at the temperature control end, the cooler performance variable indicating value MV4 that is calculated at the humidity control end, and, calculate maximum MV2x by the cooler performance variable indicating value MVC0 that chilling temperature controller PID_C is calculated.This maximum MV2x is output to cooling actuator Act2.
Add in thermal actuator Act1, cooling actuator Act2 and the temperature/humidity control system of humidification actuator Act3 in utilization as actuator, especially use to add thermal actuator Act1 as main actuator and cooling actuator Act2 in the control system as secondary actuator in temperature control, above-mentioned setting can reduce to heat/output offset of refrigerating function and the output offset of humidification/dehumidification function.As a result, on the whole,, may realize controlling near minimum output, thereby realize energy-conservation the temperature/humidity control system.Also have, by also can further improve energy-saving effect in conjunction with chilling temperature controller and cooling output maxima operation unit.As in the 3rd embodiment, when heating request or cooling request produce, but proper handling cooling actuator, thus can obtain very high controlled.
As mentioned above, the present invention is applicable to and utilizes in the temperature/humidity control system add thermal actuator, cooling actuator and humidification actuator, or is applicable to utilize and adds thermal actuator as main actuator and cooling actuator in the temperature control system as secondary actuator.
Claims (6)
1. temperature/humidity control method, it is characterized in that, the performance variable output that outputs to the cooling actuator in the performance variable output that adds thermal actuator and cooling actuator of temperature controller will be outputed to, with the humidification actuator that outputs to humidity controller with output to the performance variable output that outputs to the cooling actuator in the performance variable output of cooling actuator and compare, and the output of performance variable that will be bigger is given to the cooling actuator.
2. temperature-controlled process, it is characterized in that, will input be given to and be used to control the Cooling Control device as control variables from the performance variable output of the controller that is used to control heating, and the ideal value of performance variable output is given to as setting value is used to control the Cooling Control device.
3. a temperature/humidity control device is characterized in that, comprising:
Be used to realize the thermal actuator that adds of temperature controlled heating function;
Be used to realize the cooling actuator of the dehumidification function of temperature controlled refrigerating function and humidity control;
Be used to realize the humidification actuator of the humidification function of humidity control;
Be used to control the temperature controller of temperature;
The humidity controller that is used for controlled humidity;
Temperature control output branch units, if the value of performance variable output is corresponding to heating mode, then described temperature control output branch units is used for the performance variable from described temperature controller is outputed to the described thermal actuator that adds, if the value of performance variable output is corresponding to refrigerating mode, then described temperature control output branch units is used for the performance variable from described temperature controller is outputed to described cooling actuator;
Humidity control output branch units, if the value of performance variable output is corresponding to adding wet model, then described humidity control output branch units is used for the performance variable from described humidity controller is outputed to described humidification actuator, if the value of performance variable output is corresponding to dehumidification mode, then described humidity control output branch units is used for the performance variable from described humidity controller is outputed to described cooling actuator;
Cooling output maxima operation unit, it is arranged between described temperature control output branch units and the described cooling actuator and the control of described humidity is exported between branch units and the described cooling actuator, be used for the performance variable output of comparison, and the output of performance variable that will be bigger is given to described cooling actuator from described temperature control output branch units and humidity control output branch units.
4. a temperature/humidity control device is characterized in that, comprising:
Be used to realize the thermal actuator that adds of temperature controlled heating function;
Be used to realize the cooling actuator of the dehumidification function of temperature controlled refrigerating function and humidity control;
Be used to realize the humidification actuator of the humidification function of humidity control;
Be used to control heating and performance variable output is given to the described heating and temperature control device that adds thermal actuator;
The chilling temperature controller that is used to control cooling and performance variable output is given to described cooling actuator;
The humidification humidity controller that is used to control humidification and performance variable output is given to described humidification actuator;
The dehumidifying humidity controller that is used to control dehumidifying and performance variable output is given to the cooling actuator;
Be used for the temperature controller converting unit of operating described heating and temperature control device, operating described chilling temperature controller at refrigerating mode at heating mode;
Be used for adding the humidity controller converting unit that wet model is operated described humidification humidity controller, operated described dehumidifying humidity controller at dehumidification mode; With
Cooling output maxima operation unit, it is arranged on and reaches between described dehumidifying humidity controller and the described cooling actuator between described chilling temperature controller and the described cooling actuator, be used for the performance variable output of comparison, and the output of performance variable that will be bigger is given to described cooling actuator from described chilling temperature controller and dehumidifying humidity controller.
5. a temperature control equipment is characterized in that, comprising:
Be used to realize the thermal actuator that adds of temperature controlled heating function;
Be used to realize the cooling actuator of temperature controlled refrigerating function;
Be used to control heating and performance variable output is given to the described heating and temperature control device that adds thermal actuator; With
The chilling temperature controller, it is used for receiving the performance variable output conduct input control variables from described heating and temperature control device, be used as the setting value executable operations by ideal value, and the result that performance variable is exported as operation outputs to described cooling actuator with performance variable output.
6. a temperature/humidity control device is characterized in that, comprising:
Be used to realize the thermal actuator that adds of temperature controlled heating function;
Be used to realize the cooling actuator of the dehumidification function of temperature controlled refrigerating function and humidity control;
Be used to realize the humidification actuator of the humidification function of humidity control;
Be used to control the temperature controller of temperature;
The humidity controller that is used for controlled humidity;
Temperature control output branch units, if the value of performance variable output is corresponding to heating mode, then described temperature control output branch units is used for the performance variable from described temperature controller is outputed to the described thermal actuator that adds, if the value of performance variable output is corresponding to refrigerating mode, then described temperature control output branch units is used for the performance variable from described temperature controller is outputed to described cooling actuator;
Humidity control output branch units, if the value of performance variable output is corresponding to adding wet model, then described humidity control output branch units is used for the performance variable from described humidity controller is outputed to described humidification actuator, if the value of performance variable output is corresponding to dehumidification mode, then described humidity control output branch units is used for the performance variable from described humidity controller is outputed to described cooling actuator;
The chilling temperature controller, its performance variable output that is used for receiving from described temperature control output unit is imported as control variables, be used as the setting value executable operations by ideal value, and the result that performance variable is exported as operation outputs to described cooling actuator with performance variable output; With
Cooling output maxima operation unit, it is arranged between described cooling actuator and the described temperature control output branch units and between humidity control output branch units and the chilling temperature controller, be used for the performance variable output of comparison, and the output of performance variable that will be bigger is given to described cooling actuator from described temperature control output branch units, temperature control output branch units and chilling temperature controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP236675/2000 | 2000-08-04 | ||
| JP2000236675A JP3805957B2 (en) | 2000-08-04 | 2000-08-04 | Temperature control method and temperature / humidity or temperature control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1449480A true CN1449480A (en) | 2003-10-15 |
| CN1181299C CN1181299C (en) | 2004-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB018052703A Expired - Fee Related CN1181299C (en) | 2000-08-04 | 2001-08-06 | Method and apparatus for controlling temperature and humidity, or temperature |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3805957B2 (en) |
| KR (1) | KR100508852B1 (en) |
| CN (1) | CN1181299C (en) |
| WO (1) | WO2002012798A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359231B (en) * | 2007-08-03 | 2013-07-17 | 霍尼韦尔国际公司 | Fan coil thermostat with activity sensing |
| CN103970083A (en) * | 2013-01-25 | 2014-08-06 | 阿自倍尔株式会社 | Cooperative operating device and method |
| TWI551970B (en) * | 2014-09-29 | 2016-10-01 | Azbil Corp | Control device and control method |
| CN110427059A (en) * | 2019-07-23 | 2019-11-08 | 江苏拓米洛环境试验设备有限公司 | The method for testing temperature and humidity and device of moisture-heat test-box |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4561476B2 (en) * | 2005-05-24 | 2010-10-13 | ダイキン工業株式会社 | Air conditioning system |
| JP3864982B2 (en) * | 2005-05-30 | 2007-01-10 | ダイキン工業株式会社 | Air conditioning system |
| JP2008164278A (en) * | 2006-12-05 | 2008-07-17 | Nippon Spindle Mfg Co Ltd | Air conditioner |
| JP2008185232A (en) * | 2007-01-29 | 2008-08-14 | Orion Mach Co Ltd | Temperature-regulated air supplying device |
| FI126110B (en) * | 2011-01-19 | 2016-06-30 | Ouman Oy | Method, apparatus and computer software product for controlling actuators in temperature control |
| JP5673524B2 (en) * | 2011-12-28 | 2015-02-18 | ダイキン工業株式会社 | Air conditioning system that adjusts temperature and humidity |
| JP5737173B2 (en) * | 2011-12-28 | 2015-06-17 | ダイキン工業株式会社 | Air conditioning system that adjusts temperature and humidity |
| JP5990112B2 (en) * | 2013-02-01 | 2016-09-07 | アズビル株式会社 | Cooperative operation apparatus and method |
| JP5977685B2 (en) * | 2013-02-05 | 2016-08-24 | アズビル株式会社 | Cooperative operation apparatus and method |
| CN106344195B (en) * | 2016-10-14 | 2018-08-28 | 上海品瑞医疗器械设备有限公司 | The dentistry sonicator of Digital Control |
| CN110006142B (en) * | 2019-03-22 | 2021-12-07 | 北京小米移动软件有限公司 | Constant temperature control method and device, electronic equipment and storage medium |
| CN115220485B (en) * | 2022-07-25 | 2024-07-12 | 欧伏电气股份有限公司 | Humidity control method, device, system and storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63294445A (en) * | 1987-05-26 | 1988-12-01 | Takenaka Komuten Co Ltd | Method of controlling primary air conditioner |
| JP3282766B2 (en) * | 1994-06-17 | 2002-05-20 | 株式会社小松製作所 | Method and apparatus for supplying constant temperature and constant humidity air |
-
2000
- 2000-08-04 JP JP2000236675A patent/JP3805957B2/en not_active Expired - Lifetime
-
2001
- 2001-08-06 CN CNB018052703A patent/CN1181299C/en not_active Expired - Fee Related
- 2001-08-06 KR KR10-2003-7001545A patent/KR100508852B1/en active IP Right Grant
- 2001-08-06 WO PCT/JP2001/006732 patent/WO2002012798A1/en active IP Right Grant
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359231B (en) * | 2007-08-03 | 2013-07-17 | 霍尼韦尔国际公司 | Fan coil thermostat with activity sensing |
| CN103970083A (en) * | 2013-01-25 | 2014-08-06 | 阿自倍尔株式会社 | Cooperative operating device and method |
| CN103970083B (en) * | 2013-01-25 | 2016-08-24 | 阿自倍尔株式会社 | Coordination device and method |
| TWI551970B (en) * | 2014-09-29 | 2016-10-01 | Azbil Corp | Control device and control method |
| US9933765B2 (en) | 2014-09-29 | 2018-04-03 | Azbil Corporation | Control device and control method |
| CN110427059A (en) * | 2019-07-23 | 2019-11-08 | 江苏拓米洛环境试验设备有限公司 | The method for testing temperature and humidity and device of moisture-heat test-box |
| CN110427059B (en) * | 2019-07-23 | 2021-06-04 | 江苏拓米洛环境试验设备有限公司 | Temperature and humidity testing method and device for damp-heat test box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1181299C (en) | 2004-12-22 |
| KR20030022880A (en) | 2003-03-17 |
| JP2002048378A (en) | 2002-02-15 |
| WO2002012798A1 (en) | 2002-02-14 |
| KR100508852B1 (en) | 2005-08-18 |
| JP3805957B2 (en) | 2006-08-09 |
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