CN1170092C - Control method and device for supplying energy to heat source unit of air conditioning system according to output power - Google Patents
Control method and device for supplying energy to heat source unit of air conditioning system according to output power Download PDFInfo
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Abstract
The invention relates to a control method and a device for supplying energy to a heat source unit of an air conditioning system according to output power, in particular to a control method and a device which can calculate the required energy value according to the output power value to provide the heat source unit of the refrigeration and air-conditioning system to generate the corresponding energy supply, and a controller is mainly arranged in the refrigeration and air-conditioning load side heat exchanger set matched with the heat source unit of the refrigeration and air-conditioning system, the controller is provided with a power value detecting unit which is used for detecting the power value output to the load, after the central micro-processing unit calculates the energy value needed by the air conditioner, the numerical value is input to the energy value needed by the refrigerating air conditioner to calculate the total energy value needed by the refrigerating air conditioner, and randomly transmitting the value to a heat source unit controller to correspondingly control the heat source supply amount of the heat source unit, thereby maintaining the system in an optimized operation state and effectively achieving energy-saving and high-efficiency operation.
Description
Technical field
The invention relates to a kind of control method and device of supplying energy to heat source set of air conditioning system according to output power, being particularly related to a kind of can calculating according to output power value needs to produce the control method and the device of corresponding energy supply with energy value to provide its thermal source unit of refrigerating and air conditioning system to make, so that system held energy-conservation and high efficiency running in an optimization.
Prior art
Drive manner by early stage its thermal source unit of refrigerating and air conditioning system, only can whether select the air-conditioning supply according to refrigerating and air conditioning room (district), the running that decides the thermal source unit whether, pay no attention to the demand in refrigerating and air conditioning room fully and what are wanted on earth, cause the excessive waste of the energy, so be to have improved refrigerating and air conditioning shown in Figure 1 system to ask the city, this system is mainly by a thermal source unit 11 configurations one refrigerating and air conditioning load-side heat exchange unit 12, this refrigerating and air conditioning load-side heat exchange unit 12 is provided with a heat exchanger 13, fan motor M1, one setup unit F11, one sensing cell T11 and controller 120 (seeing also shown in Figure 2), the system that forms by above element, provide refrigerating and air conditioning supply (being the thermal source supply) to refrigerating and air conditioning district R10, sensing value TA that its middle controller 120 records according to sensing cell T11 and the setting value TAS of setup unit F11, after central microprocessing unit 121 comparison calculation, drive output unit 123, the electric power of power-supply unit 122, output power gives fan motor M1 to control its rotating speed, though this system is corresponding to the rotating speed control of fan motor M1, more traditional decide the progress of air quantity control mode, only on energy uses, still have following shortcoming:
1, this system is for the control of fan motor rotating speed, though can be according to the variation of the changes in demand modulation air quantity in refrigerating and air conditioning district, the thermal source supply of thermal source unit can't with the corresponding control synchronously of its do; That is to say, the thermal source unit is always being supplied with specified energy, the demand status of paying no attention to refrigerating and air conditioning district R10 fully why, cause thermal source in large supply multi-period be the state that is in greater than load, main frame must adopt the drive manner of opening, stopping to provide an amount of thermal source to regulate the thermic load of refrigerating and air conditioning district R10.
2, as above first described, cause the reason of energy waste, be to be that the thermal source unit can not predict the energy requirement of air-conditioning load-side heat exchange unit at random, and take corresponding thermal source supply, that is fail its demand randomized response is offered the thermal source unit at refrigerating and air conditioning load-side heat exchange unit, and form the significant drawback that the energy uses.
Summary of the invention
In view of this inventor is studied improvement at its shortcoming, finishes the invention of this case finally, purpose of the present invention:
One, is to provide a kind of and can calculates the control method that needs with energy value according to refrigerating and air conditioning load-side output power value, so that the thermal source unit produces corresponding thermal source supply, make the thermal source unit can be at random need carry out correspondence adjustment, and then reach energy-conservation purpose with energy value according to the air-conditioning of refrigerating and air conditioning load-side heat exchange unit.
Two, be to provide a kind of and can calculate the control device that needs with energy value according to refrigerating and air conditioning load-side output power value, so that the thermal source unit produces corresponding thermal source supply, make the thermal source unit can be at random need carry out correspondence adjustment, and then reach energy-conservation purpose with energy value according to the air-conditioning of refrigerating and air conditioning load-side heat exchange unit.
Purpose of the present invention can realize by following mode: the control method of supplying energy to heat source set of air conditioning system according to output power is characterized in that step is:
(1) input power numerical value converts refrigerating and air conditioning to and need use energy value, setting value, difference, each controller transfers to central microprocessing unit according to the measured detecting value of power output numerical value detecting unit, converting refrigerating and air conditioning to through computing needs with behind the energy value, again this value input refrigerating and air conditioning need be used the energy value computing unit;
(2) selecting the running form is that unit or list are regional, the running form of multizone, need use the energy value computing unit by refrigerating and air conditioning, calculating total refrigerating and air conditioning needs again this value to be passed to the thermal source group controller, and control the thermal source supply by following condition with behind the energy value;
I. when total refrigerating and air conditioning need add difference greater than setting value with energy value, control thermal source unit thermal source supply was a maximum;
II. working as total refrigerating and air conditioning need be with energy value greater than setting value, but when adding difference less than setting value, control thermal source unit supply maintains need be proportional with energy value with refrigerating and air conditioning, promptly provides with refrigerating and air conditioning and load suitable refrigerating and air conditioning ability in system;
III. when total refrigerating and air conditioning expense value less than when setting value, the thermal source supply of control thermal source unit is a minimum of a value.
The control device of a kind of supplying energy to heat source set of air conditioning system according to output power of the present invention, based on a controller, and need use energy value computing unit line with a refrigerating and air conditioning, this controller then includes a central microprocessing unit, a sensing cell, a setup unit, an output unit, a power-supply unit, a magnitude of power detecting unit, it is characterized in that:
A kind of control device of supplying energy to heat source set of air conditioning system according to output power, based on a controller, and need use energy value computing unit, a sensing cell, a setup unit line with a refrigerating and air conditioning, this controller then includes a central microprocessing unit, an output unit, a power-supply unit, a magnitude of power detecting unit, it is characterized in that:
Central authorities microprocessing unit respectively with an output unit, a power-supply unit, a magnitude of power detecting unit line, power-supply unit and magnitude of power detecting unit are electrically connected with output unit respectively again; Output unit also is electrically connected with fan motor; Controller need be used energy value computing unit, sensing cell, setup unit line by central microprocessing unit and refrigerating and air conditioning; Refrigerating and air conditioning need be used energy value computing unit and heat source machine group controller line, and the heat source machine group controller is electrically connected with the thermal source unit;
This magnitude of power detecting unit is the magnitude of power of exporting in order to the detecting output unit, and converting refrigerating and air conditioning to via central microprocessing unit computing needs this numerical value to be transferred to refrigerating and air conditioning need to use the energy value computing unit with behind the energy value; And this refrigerating and air conditioning need be used the energy value computing unit, be to have the function that each controller of statistics need be used energy value, and the total refrigerating and air conditioning that will calculate needs be transferred to the heat source machine group controller with energy value, makes this controller according to the corresponding thermal source supply of controlling the thermal source unit of this value.
Above-mentioned this heat source machine group controller can with a computer center line.
Description of drawings:
Fig. 1 is the system diagram of existing refrigerating and air conditioning;
Fig. 2 is existing control calcspar;
Fig. 3 is the block schematic diagram of its control device of the present invention;
Fig. 4 is the enforcement illustration of stand-alone configuration of the present invention system;
Fig. 5 is the enforcement illustration of the single area configurations of the present invention system;
Fig. 6 is the enforcement illustration of the present invention in the multizone configuration;
Fig. 7 is its control flow chart of the present invention ();
Fig. 8 is its control flow chart of the present invention (two);
Fig. 9 is its control flow chart of the present invention (three);
Figure 10 is its control flow chart of the present invention (four).
Specific implementation
Following conjunction with figs. explanation, introduce its specific embodiment of the present invention in detail as back:
Fig. 3 is the block schematic diagram of its control device of the present invention, and wherein this device is a main body by a controller 221 mainly, has with lower unit:
One central microprocessing unit 2211 is a CPU, has the various detecting numerical value of reception and sets numerical value, after its comparison calculation, exports functions such as corresponding numerical value, control signal;
A sensing cell T21 is to have the temperature value of at least more than one sensing element in order to the detecting target area, and this value is transferred to central microprocessing unit 2211;
One setup unit F21 is in order to set the unit of numerical value, via the setting operation of this element, so that central microprocessing unit 2211 and detecting numerical value comparison calculation to be provided;
One output unit 2213, control the electric power of power-supply unit 2212 according to the control signal of CPU 2211 and supply with refrigerating and air conditioning load-side heat exchange unit 22 fan motor M21, as evaporator fan motor M21 (or fan motor of other air-conditioning box, indoor blower etc.);
One power-supply unit 2212 is the supply of electric power source of fan motor M21 (as the fan motor of air-conditioning box, indoor blower etc.) running that required electric power of controller itself and refrigerating and air conditioning load-side heat exchange unit 22 are provided;
One magnitude of power detecting unit 2214 is magnitude of powers of being exported in order to detecting output unit 2213;
By forming of said units, the power output numerical value P that is detected according to power data detecting unit 2214 by central microprocessing unit 2211 computing in addition is that refrigerating and air conditioning need be used energy value Q1a1 (Q1a2, Q1an, Q2a2, Qna1, Qnan), it being transferred to air-conditioning needs to calculate total refrigerating and air conditioning with energy value computing unit B21 and need use energy value Q again, and this total refrigerating and air conditioning need be to have the function that each controller 221 refrigerating and air conditioning of statistics need be used energy value with energy value computing unit B21, and its total refrigerating and air conditioning that calculates needed be transferred to heat source machine group controller A20 with energy value Q, make the thermal source supply Qe of this controller A20 according to the corresponding control of Q value thermal source unit 21, and this heat source machine group controller A20 also can with a computer center C line.
Please consult shown in Figure 4ly again, be the embodiment system diagram of stand-alone configuration of the present invention system, this system 2 mainly is made up of a thermal source unit 21 couplings one refrigerating and air conditioning load-side heat exchange unit 22, wherein:
One thermal source unit 21 is to be connected with a heat source machine group controller A20, and accepts the corresponding control of its signal and be defeated by the thermal source supply Qe of refrigerating and air conditioning load-side heat exchange unit 22;
One refrigerating and air conditioning load-side heat exchange unit 22, be by a controller 221, one heat exchanger 222, one fan motor M21, elements such as one a sensing cell T21 and a setup unit F21 are formed, and this controller 221 is to have 4 one central microprocessing units 2211, one power-supply unit 2212, elements such as one output unit 2213 and a magnitude of power detecting unit 2214, and utilize this magnitude of power detecting unit 2214 measured load-side output power value P, become refrigerating and air conditioning need use energy value Q1a1 via central microprocessing unit 2211 computings, again this numerical value Q1a1 is passed to refrigerating and air conditioning and need use energy value computing unit B21, and convert total refrigerating and air conditioning to and need use energy value computing unit B21, and convert total refrigerating and air conditioning to and need use energy value Q, again by heat source machine group controller A20 according to the thermal source supply Qe (see also shown in Figure 3) of this value Q with setting value QS comparison back control thermal source unit 21.
Convert total refrigerating and air conditioning to as for magnitude of power detecting unit 2214 measured load-side output power value P and need use energy value Q and thermal source supply Qe, we know to have following relation between air quantity F, rotational speed omega, consumed power P and the refrigerating and air conditioning ability Q of fan motor according to fan law (fan laws):
1, the air quantity F of fan motor be directly proportional with the fan motor rotational speed omega (be F oc ω, the meaning of oc is " being directly proportional ").
2, the rotational speed omega of fan motor be directly proportional with motor consumed power (being load-side output power value P) (being ω ocP).
3, refrigerating and air conditioning ability (being that refrigerating and air conditioning need be used energy Q) be directly proportional with the air quantity F of fan motor (being FocQ).
4, refrigerating and air conditioning ability Q be directly proportional with motor consumed power value P (being PocQ).
Relation by last P oc Q, further deducing and being scaled air conditioner energy value Q according to load-side output power value P (is Q1a1, Q1a2 ..., Qnan) between have the relation of Q=KP (K be the coefficient value of program conversion, Q=Q1a1+Q1a2 ... so+Qnan, and Q=Qe are Qe=Q=KP).
Utilize the composition of said elements, can need use the size of energy value Q according to total refrigerating and air conditioning of refrigerating and air conditioning load-side heat exchange unit 22 pairs of refrigerating and air conditioning rooms R20, thermal source supply Qe by its thermal source unit 21 of heat source machine group controller A20 control refrigerating and air conditioning system, promptly record the ambient temperature value Ta of refrigerating and air conditioning room R20 and the setting value TaS that setup unit F21 sets by sensing cell T21, after controller 221 its central microprocessing unit 2211 computings comparisons, export a control signal and give output unit 2213, be defeated by the power of fan motor M21 with control, magnitude of power detecting unit 2214 is then detected the numerical value P1a1 of 2213 out-put supply power of output unit and is passed to central microprocessing unit 2211 computings and becomes refrigerating and air conditioning South Africa energy value Q1a1, again this numerical value Q1a1 is passed to refrigerating and air conditioning again and need use energy value computing unit B21, and the unit counts total refrigerating and air conditioning and need use energy value Q thus, again by the comparison result of heat source machine group controller A20, with the thermal source supply Qe of control thermal source unit 21 according to this value and setting value QS.
Shown in Figure 5, enforcement illustration for the single area configurations of the present invention system, wherein this system 3 is by the many groups of a thermal source unit 31 couplings refrigerating and air conditioning load-side heat exchange unit 32,33,34, to provide the thermal source supply to refrigerating and air conditioning region R 30, and each refrigerating and air conditioning load-side heat exchange unit 32,33,34, controller 321,331,341, identical with calcspar shown in Figure 3, be with each measured magnitude of power P1a1, P1a2, P1an converts air-conditioning to after computing need use energy value Q1a1, Q1a2, Q1an is transferred to air-conditioning need use energy value computing unit B31, counting this list regional air conditioner need be with energy value QA1 (this moment QA1 value equal the Q value), again by the comparison result of heat source machine group controller A30, with the thermal source supply Qe of control thermal source unit 31 according to this value and setting value QS.
Shown in Figure 6, enforcement illustration for multizone configuration relation of the present invention, wherein this system 4 be by, the a plurality of refrigerating and air conditioning region R 41 of one thermal source unit, 41 couplings, R42, R43, the thermal source supply is provided, and each refrigerating and air conditioning region R 41, R42, R43, respectively be provided with at least one group of above refrigerating and air conditioning load-side heat exchange unit 42,43,44,45,46,47, and at each refrigerating and air conditioning load-side heat exchange unit 42,43, in respectively have a controller 421,431,441,451,461,471, identical with Fig. 3, be with each measured magnitude of power P1a1, P1a2, P1an, P2a1, P2an, Pna1, Pnan converts air-conditioning to need use energy value Q1a1, Qhn, Q2a1, Q2an, Qna1, behind the Qnan, be transferred to each corresponding refrigerating and air conditioning region R 41 again, R42;
R43 ... refrigerating and air conditioning need use energy value computing unit R41, R42, R43 ... refrigerating and air conditioning need use energy value computing unit B41, B42, B43 ... and count respectively should the zone refrigerating and air conditioning need with energy value be respectively A1, A2, A3 ..., An, and to be needed to calculate total the need with energy value Q again with energy value computing unit B41 by air-conditioning (be that ∑ Q equals QA1+QA2+ ... + QAn), again by the comparison result of heat source machine group controller A40, with the thermal source supply Qe of control thermal source unit 41 according to Q value and setting value QS.
Fig. 7, the steps include: for control method of the present invention to shown in Figure 10
1, input power numerical value P1a1, P1an, Pnan is converted into refrigerating and air conditioning need use energy value Q1a1, Q1a2, Qnan, setting value QS, difference X: each controller 221 (321,331,341,421,431,441,451,461,) transfer to central microprocessing unit 2211 through after the computing according to magnitude of power detecting unit 2214 measured detecting value P, convert indivedual refrigerating and air conditioning to and need use energy value Qh1 (Q2a1, Q1an, Qna1, Qnan) after, import refrigerating and air conditioning again and need use energy calculation unit B21 (or B31, B41);
2, select the running form, be divided into according to configuration:
(1) unit running form (seeing also Fig. 4,8), its flow process is:
I. as ∑ Q=Q1a1, during ∑ Q＞QS+X, total refrigerating and air conditioning of expression refrigerating and air conditioning load-side heat exchange unit 22 need add difference X greater than setting value QS with energy value ∑ Q (being the energy demand), and the thermal source supply Qe of heat source machine group controller A20 control this moment thermal source unit 21 is maximum MAX;
II. when QS master's ∑ Q orchid+X, the thermal source supply Qe of thermal source unit 21 maintains with ∑ Q, value proportional, promptly provides the refrigerating and air conditioning ability suitable with the refrigerating and air conditioning load in system, to reach the running of optimum efficiency;
III. when ∑ Q＜QS, expression refrigerating and air conditioning load-side heat exchange unit 22 energy requirements are lower than setting value QS, and this moment, thermal source unit 21 thermal source supply Q was minimum of a value min;
(2) its flow process of zone running form (seeing also Fig. 5,9) is:
I. as ∑ Q=A1=Qha1+Q1a2+ ... + Q1an, during ∑ Q＞QS+X, total refrigerating and air conditioning of representing this refrigerating and air conditioning region R 30 need add difference X greater than setting value QS with energy value ∑ Q (being the region energy demand), and the thermal source supply Qe of heat source machine group controller A30 control this moment thermal source unit 31 is maximum MAX;
II. when QS≤∑ Q≤QS+X, the thermal source supply Q of thermal source unit 31 maintains with ∑ Q value proportional, promptly provides the refrigerating and air conditioning ability suitable with the refrigerating and air conditioning load in system, to reach the running of optimum efficiency;
III. when ∑ Q＜QS, the energy requirement of expression refrigerating and air conditioning region R 30 is lower than setting value QS, and this moment, thermal source unit 31 thermal source supply Qe was minimum of a value min;
(3) its flow process of multizone running form (seeing also Fig. 6,10) is:
I. as ∑ Q=QA1+QA2+ ... + QAn (and each regional refrigerating and air conditioning needs to be respectively Qa1=Q1a1+Q1a2+ with energy value ... + Q1an, QA2=Q2a1+Q2a2+ ... Q2an, QAn=Qna1+Qna2+ ... + Qnan), and during ∑ Q＞QS+X, represent the whole total refrigerating and air conditioning expense value ∑ Q of this multizone (be indivedual refrigerating and air conditioning region R 41, R42, R43 ... refrigerating and air conditioning need be with the summation of energy value) add difference X greater than setting value QS, this moment heat source machine group controller A40 to control the thermal source supply Qe of this thermal source unit 41 be maximum MAX;
II. when QS≤∑ Q≤QS+X, the thermal source supply Qe of thermal source unit 41 maintains with ∑ Q value proportional, promptly provides the refrigerating and air conditioning ability suitable with the refrigerating and air conditioning load in system, to reach the running of optimum efficiency;
III. when ∑ Q＜QS, represent that the overall energy requirement of this zone integral body is lower than setting value QS, this moment, thermal source unit 41 thermal source supply Q was minimum of a value min.
In sum, control method of the present invention and device, can calculate air-conditioning according to refrigerating and air conditioning load-side output power value and need use energy value, and make the thermal source unit produce corresponding thermal source supply, make the thermal source unit need carry out correspondence adjustment with energy value according to the refrigerating and air conditioning of load-side at random, make system in arbitrary time, all maintain under the optimum efficiency situation and turn round, and then reach energy-conservation purpose.
Claims (3)
1, a kind of control method of supplying energy to heat source set of air conditioning system according to output power is characterized in that step is:
(1) input power numerical value converts refrigerating and air conditioning to and need use energy value, setting value, difference, each controller transfers to central microprocessing unit according to the measured detecting value of power output numerical value detecting unit, converting refrigerating and air conditioning to through computing needs with behind the energy value, again this value input refrigerating and air conditioning need be used the energy value computing unit;
(2) selecting the running form is that unit or list are regional, the running form of multizone, need use the energy value computing unit by refrigerating and air conditioning, calculating total refrigerating and air conditioning needs again this value to be passed to the thermal source group controller, and control the thermal source supply by following condition with behind the energy value:
I. when total refrigerating and air conditioning need add difference greater than setting value with energy value, control thermal source unit thermal source supply was a maximum;
II. working as total refrigerating and air conditioning need be with energy value greater than setting value, but when adding difference less than setting value, control thermal source unit supply maintains need be proportional with energy value with refrigerating and air conditioning, promptly provides with refrigerating and air conditioning and load suitable refrigerating and air conditioning ability in system;
III. when total refrigerating and air conditioning expense value less than when setting value, the thermal source supply of control thermal source unit is a minimum of a value.
2, a kind of control device of supplying energy to heat source set of air conditioning system according to output power, based on a controller, and need use energy value computing unit, a sensing cell, a setup unit line with a refrigerating and air conditioning, this controller then includes a central microprocessing unit, an output unit, a power-supply unit, a magnitude of power detecting unit, it is characterized in that:
Central authorities microprocessing unit respectively with an output unit, a power-supply unit, a magnitude of power detecting unit line, power-supply unit and magnitude of power detecting unit are electrically connected with output unit respectively again; Output unit also is electrically connected with fan motor; Controller need be used energy value computing unit, sensing cell, setup unit line by central microprocessing unit and refrigerating and air conditioning; Refrigerating and air conditioning need be used energy value computing unit and heat source machine group controller line, and the heat source machine group controller is electrically connected with the thermal source unit;
This magnitude of power detecting unit is the magnitude of power of exporting in order to the detecting output unit, and converting refrigerating and air conditioning to via central microprocessing unit computing needs this numerical value to be transferred to refrigerating and air conditioning need to use the energy value computing unit with behind the energy value; And this refrigerating and air conditioning need be used the energy value computing unit, be to have the function that each controller of statistics need be used energy value, and the total refrigerating and air conditioning that will calculate needs be transferred to the heat source machine group controller with energy value, makes this controller according to the corresponding thermal source supply of controlling the thermal source unit of this value.
3, the control device of supplying energy to heat source set of air conditioning system according to output power as claimed in claim 2 is characterized in that: this heat source machine group controller can with a computer center line.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011345721A CN1170092C (en) | 2001-11-26 | 2001-11-26 | Control method and device for supplying energy to heat source unit of air conditioning system according to output power |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011345721A CN1170092C (en) | 2001-11-26 | 2001-11-26 | Control method and device for supplying energy to heat source unit of air conditioning system according to output power |
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| CN1170092C true CN1170092C (en) | 2004-10-06 |
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| JP4936961B2 (en) * | 2007-04-04 | 2012-05-23 | 株式会社東芝 | Air conditioning system controller |
| CN101770243B (en) * | 2009-01-06 | 2012-10-31 | 珠海格力电器股份有限公司 | Air conditioning system and dynamic temperature adjusting method of air conditioning system |
| JP5472413B2 (en) * | 2012-09-20 | 2014-04-16 | ダイキン工業株式会社 | Demand control device |
| CN103727627B (en) * | 2012-10-11 | 2016-10-05 | 财团法人车辆研究测试中心 | Intelligent constant temperature control method and device suitable for cold/warm air-conditioning system |
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Effective date of registration: 20091120 Address after: Hsinchu city of Taiwan Province Patentee after: Quanfeng Industry Co., Ltd. Address before: No. 157, Lane 33, Yongfeng Road, Taiping County, Taichung County, Taiwan Patentee before: Yufeng Science and Technology Co., Ltd. |
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Granted publication date: 20041006 Termination date: 20101126 |