CN102889674B - Variable air volume air-conditioning tail end device and air volume control method thereof - Google Patents
Variable air volume air-conditioning tail end device and air volume control method thereof Download PDFInfo
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- CN102889674B CN102889674B CN201210431617.XA CN201210431617A CN102889674B CN 102889674 B CN102889674 B CN 102889674B CN 201210431617 A CN201210431617 A CN 201210431617A CN 102889674 B CN102889674 B CN 102889674B
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Abstract
The invention discloses a variable air volume air-conditioning tail end device and an air volume control method thereof. The device comprises a box body, an air speed sensor and an air volume balance controller, wherein the box body is provided with an air inlet and an air outlet; the air speed sensor comprises a direct-current generator, a blade disc and a plurality of rotor wings; the direct-current generator comprises an armature shaft and is arranged at a middle position of the air inlet along the axial direction of the box body; the blade disc is sleeved on the armature shaft of the direct-current generator; the rotor wings are uniformly connected to the blade disc along the circumferential direction of the blade disc at intervals; and an output end of the direct-current generator is connected with an input end of the air volume balance controller. According to the air volume control method, the temperature serves as main controlled quantity or auxiliary controlled quantity, the air volume serves as another controlled quantity, and PID regulation control is adopted, and therefore, the control of the variable air volume air-conditioning tail end device on the air volume can be simple and direct on the basis that meeting accuracy control is met.
Description
Technical field
The present invention relates to central air conditioner end air amount control field, particularly relate to a kind of variable air-volume air-conditioning end and air quantity control method thereof.
Background technology
As everyone knows, because air-conditioning energy consumption proportion in building energy consumption holds the balance, air conditioner energy saving technology is more and more subject to people's attention.Due to the complexity of central air conditioner system, air-conditioning system summary controls more and more to be subject to pursuing of people.
VAV air-conditioning system is as a kind of air-conditioning system of efficient energy-saving, and this system regulates by changing air quantity variable end device the air quantity sending into room, and the air quantity of corresponding adjustment air-conditioner host group (AHU) adapts to the air quantity demand of this system.VAV air-conditioning system can require the change of parameter according to the change of air conditioner load and indoor, automatically regulate air-conditioning amount, to meet the comfort requirement of indoor occupant.
The air quantity variable end device of VAV air-conditioning system is primarily of casing, controller, air velocity transducer, temperature sensor, fan valve executor, and the parts such as air-valve form.
Existing air velocity transducer is various in style, and the most common is pitot tube type air velocity transducer, screw air velocity transducer, hot line hot diaphragm type air velocity transducer etc.Pitot tube type air velocity transducer uses pneumatic process, tries to achieve wind speed by the difference measuring total head and static pressure; Screw air velocity transducer uses Mechanical Method, utilizes the dynamic pressure pushing mechanical device of fluid to rotate, and produces pulse try to achieve wind speed by magnetic pole; Hot line hot diaphragm type air velocity transducer uses rate of heat dissipation method to utilize flow velocity to become the principle of corresponding relation with rate of heat dissipation, by measuring the time of equal heat dissipation capacity, or variations in temperature, or keeps the change of heating current amount of first temperature to determine wind speed.
But traditional VAV air-conditioning system is measured by traditional air velocity transducer, its control mode Shortcomings, its deficiency is:
1, pitot tube type air velocity transducer can only measure the flow velocity that certain is a bit located, and fluid is when flowing in the duct, on same cross section, the flow velocity of each point is variant, in air quantity variable end device, because pipeline section is comparatively large, measure the average speed that certain any flow velocity can not reflect this cross section.And, easily there is the phenomenon of blocking when air quality is not good, along with service time is elongated gradually, also more easily occur the phenomenon blocked.In addition, the pitot tube type air velocity transducer of air quantity variable end device itself does not export the signal of telecommunication, can only export pressure difference signal.So little pressure difference signal be become send as the signal of telecommunication, and also will keep its precision, cost is high, easily causes the problem that pressure difference transmitter damages because there is overload phenomenon when air quantity is excessive.
2, when screw air velocity transducer utilizes screw to rotate, fixed magnetic pole, according to the change of the magnetic line of force of its perception, measures the number of revolutions of screw within the unit interval, thus passes through the relation of propeller rotational number of times and wind speed, obtains the flow velocity of air.But when propeller is shaken near fixed magnetic pole, easily produce accumulated error, use more of a specified duration, error is larger; And easily leak rapid pulse strokes per minute during High Rotation Speed, the air speed value causing pulses switch to become has deviation.
3, hot line hot diaphragm type air velocity transducer is probe with heated filament (tungsten filament or platinum filament) or with hotting mask (platinum or chromium make film), exposed in tested air, by the resistance of its electric bridge or the equilibrium relation of electric current, detect the flow velocity of measured section air.But required precision is high, with high content of technology, cost is high, and measuring wind scope is 0-10m/s, is not enough to the requirement of the variable air volume box system of satisfied large wind speed.
As can be seen here, a kind of popular style wind speed method for sensing that is strong, that meet required precision and the air quantity scope of application is adopted to use particularly important to the expansion of variable air volume system with the more simple direct device of VAV control.
In addition, the traditional control method of VAV air-conditioning system is very complicated.At present, the control mode of VAV air-conditioning system adopts DDC to control substantially.When system model Parameters variation is little, DDC control effects is good.But the resource of DDC inside is very limited, can not exceed, and good multiprogram is all solidificated in inside DDC, to compare with practical application pattern according to the intrinsic program schema of DDC when selecting, if two kinds of patterns are the same, can select, if different, that just can not select this kind of DDC.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, there is provided a kind of variable air-volume air-conditioning end and air quantity control method thereof, by described air velocity transducer and method, this variable air-volume air-conditioning end is more simple direct on the basis meeting accurately control to the control of air quantity.
Its technical scheme is as follows:
A kind of variable air-volume air-conditioning end, it includes casing, air velocity transducer and air balance controller, described casing is provided with air intake vent and air outlet, described air velocity transducer includes dc generator, leaf dish and multiple rotor, described dc generator includes armature shaft, dc generator is along the centre position being axially disposed within air intake vent of described casing, described leaf dish is socketed on the armature shaft of described dc generator, described rotor is connected to Ye Panshang evenly and at intervals along the circumference of described leaf dish, the output of described dc generator is connected with the input of described air balance controller.
Below the further technical scheme of described device is described:
The air intake vent of described casing and the shape of air outlet are all set to circle.
Described dc generator is DC permanent-magnetic brushless generator.
Described rotor includes pole and fan blade, and the cabinet wall at the contiguous described air intake vent place of end of described pole, described fan blade is connected to the end of described pole.
Between described fan blade and pole or between described pole and leaf dish, angle regulator is installed.
Described air balance controller includes air quantity comparison module, the second PID controller and selector, described air quantity comparison module, the second PID controller and selector are electrically connected successively, described air quantity comparison module is provided with two inputs, the output of the dc generator described in one of them input connects, another input is for setting airflow value.
Described variable air-volume air-conditioning end also includes temperature controller and temperature sensor, described temperature controller includes temperature comparison module and the first PID controller, this temperature comparison module, the first PID controller are connected successively with described selector, described temperature comparison module is provided with two inputs, temperature sensor described in one of them input connects, another input is used for set temperature value.
Described variable air-volume air-conditioning end also includes air-valve and fan valve executor, described air-valve is near the air outlet place of described casing, described fan valve executor is electrically connected with the output of described selector, and this fan valve executor is used for the aperture directly controlling described air-valve.
Above-mentioned PID controller is proportional-integral derivative controller.
Described " first " PID controller, " second " PID controller as to the quantity of PID controller and the restriction of order, is not only limitted to the differentiation of the title to PID controller.
The present invention also provides a kind of air quantity control method of variable air-volume air-conditioning end, and its step is as follows:
Prior design temperature and air quantity;
After the temperature that described temperature sensor detects controlled environment obtains temperature measured value, this temperature measured value is passed to described temperature controller, temperature controller exports the first control signal according to the temperature gap between described temperature measured value and desired temperature to described air balance controller;
After the wind speed that described air velocity transducer detects casing air intake vent place obtains air quantity measured value, this air quantity measured value is defeated by described air balance controller, air balance controller produces the second control signal according to the air quantity difference between described air quantity measured value and air quantity setting value, then the first described control signal and the second control signal is converted to jointly air quantity adjustment signal and flows to described fan valve executor;
Described fan valve executor controls valve area according to the air quantity adjustment signal received.
Below the further technical scheme of described method is described:
When setting air quantity after design temperature in the ban, described selector selects the first control signal as main control signal, and the second control signal is as auxiliary control signal; In the ban set air quantity then design temperature time, described selector selects the first control signal as auxiliary control signal, and the second described control signal is as main control signal.
Described temperature controller includes temperature comparison module and the first PID controller, this temperature comparison module compares in real time to described temperature measured value and desired temperature, and pass to the first PID controller by comparing the temperature gap obtained, described temperature gap is made the backward described air balance controller of computing and is exported the first control signal by this first PID controller, described air balance controller includes air quantity comparison module, second PID controller and selector, described air quantity comparison module compares in real time to described air quantity measured value and air quantity setting value, and pass to the second PID controller by comparing the air quantity difference obtained, air quantity difference is made the backward described selector of computing and is exported the second control signal by the second PID controller, the first described control signal and the second control signal are converted to air quantity adjustment signal by described selector jointly.
Below the advantage of preceding solution or principle are described:
1, in described variable air-volume air-conditioning end, its air velocity transducer is along the centre position being axially disposed within air intake vent of casing, this air velocity transducer includes dc generator, leaf dish and multiple rotor, the wind then flowing to air outlet from described casing air intake vent can drive described rotor rotational, the rotation of rotor can be rotated with the armature shaft of dynamotor again, described dc generator is made directly to export the voltage signal that can reflect air quantity measured value to described air balance controller, thus this air velocity transducer can on the basis meeting certainty of measurement and the air quantity scope of application, also have and do not block, versatility is high, control simple and easy, with the advantage such as cost is low, this air velocity transducer matches with described air balance controller simultaneously, make described variable air-volume air-conditioning end more simple direct on the basis meeting accurately control to the control of air quantity.
2, the air intake vent of casing and the shape of air outlet are all set to circle and match with described air velocity transducer, then contribute to improving air velocity transducer and reflect measured wind speed more accurately.
3, the cabinet wall at the contiguous described air intake vent place of the end of described pole, described fan blade is connected to the end of described pole, wind due to the described casing that circulates is attached to the flowing of described cabinet wall, then describedly arrange wind speed or the air quantity that air velocity transducer can be made to measure air intake vent place more exactly.
4, between described fan blade and pole or between described pole and leaf dish, angle regulator is installed, then fan blade can make angle adjustment around described pole, thus, in the process of debugging air velocity transducer, can the measurement of air velocity transducer be made more accurate by described angle adjustment.
5, described temperature controller includes temperature comparison module and the first PID controller, then temperature comparison module compares in real time to described temperature measured value and desired temperature, and passing to the first PID controller by comparing the temperature gap obtained, described temperature gap is then made the backward described air balance controller of computing and is exported the first control signal by the first PID controller.
6, described air balance controller includes air quantity comparison module, the second PID controller and selector, then air quantity comparison module compares in real time to described air quantity measured value and air quantity setting value, and pass to the second PID controller by comparing the air quantity difference obtained, and air quantity difference is made the backward described selector of computing and exported the second control signal by the second PID controller, the first described control signal and the second control signal are then converted to air quantity adjustment signal by described selector jointly.
7, described variable air-volume air-conditioning end also includes air-valve and fan valve executor, described fan valve executor is electrically connected with the output of described selector, then described selector is to fan valve executor discharge quantity of fan adjustment signal, fan valve executor is controlled valve area according to this air quantity adjustment signal, thus finally achieves the simple directly control of described variable air-volume air-conditioning end to air quantity.
In the air quantity control method of 8, described variable air-volume air-conditioning end, can arrange temperature as main control quantity or auxiliary controlled quentity controlled variable according to the priority of temperature and air quantity, and air quantity is as another controlled quentity controlled variable, abandoned complicated DDC to control simultaneously, have employed the direct regulable control of PID, make variable air-volume air-conditioning end more simple direct on the basis meeting accurately control to the control of air quantity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air velocity transducer described in the embodiment of the present invention.
Fig. 2 is the A direction view in Fig. 1.
Fig. 3 is the control structure schematic diagram of the variable air-volume air-conditioning end described in the embodiment of the present invention.
Fig. 4 is the entity structure schematic diagram of the variable air-volume air-conditioning end described in the embodiment of the present invention.
Fig. 5 be in Fig. 4 B-B to cross sectional view.
Fig. 6 be in Fig. 4 C-C to cross sectional view.
Description of reference numerals:
1, casing, 101, air intake vent, 102, air outlet, 2, control module, 201, temperature controller, 2011, temperature comparison module, 2012, the first PID controller, 202, air balance controller, 2021, air quantity comparison module, the 2022, second PID controller, 2023, selector, 3, temperature sensor, 4, air velocity transducer, 401, rotor, 4011, pole, 4012, fan blade, 402, leaf dish, 403, DC permanent-magnetic brushless generator, 5, air-valve, 6, fan valve executor, 7, support, 8, electric cabinet.
Detailed description of the invention
Below embodiments of the invention are described in detail:
As Fig. 1, shown in Fig. 3 and Fig. 4, a kind of variable air-volume air-conditioning end, it includes casing 1, air velocity transducer 4 and air balance controller 202, described casing 1 is provided with air intake vent 101 and air outlet 102, described air velocity transducer 4 includes DC permanent-magnetic brushless generator 403, leaf dish 402 and three rotors 401, described DC permanent-magnetic brushless generator 403 includes armature shaft, DC permanent-magnetic brushless generator 403 is along the centre position being axially disposed within air intake vent 101 of described casing 1, described leaf dish 402 is socketed on the armature shaft of described DC permanent-magnetic brushless generator 403, described rotor 401 is connected on leaf dish 402 along the circumferential angle intervals of described leaf dish 402 equably, the output of described DC permanent-magnetic brushless generator 403 is connected with the input of described air balance controller 202.
Wherein, the air intake vent 101 of described casing 1 and the shape of air outlet 102 are all set to circle.Described air velocity transducer 4 is connected with support 7, and air velocity transducer 4 is fixed on the centre position of air intake vent 101 by this support 7, and the two ends of support 7 connect described air velocity transducer 4 and the inwall of casing 1 respectively, specifically as shown in Figure 5.Described rotor 401 includes pole 4011 and fan blade 4012, and casing 1 inwall at contiguous described air intake vent 101 place of end of described pole 4011, described fan blade 4012 is connected to the end of described pole 4011.Between described fan blade 4012 and pole 4011 or between described pole 4011 and leaf dish 402, angle regulator is installed.Described air balance controller 202 and temperature controller 201 form control module 2 jointly, and this control module 2 is arranged in electric cabinet 8.Described air balance controller 202 includes air quantity comparison module 2021, second PID controller 2022 and selector 2023, described air quantity comparison module 2021, second PID controller 2022 and selector 2023 are electrically connected successively, described air quantity comparison module 2021 is provided with two inputs, the output of the DC permanent-magnetic brushless generator 403 described in one of them input connects, another input is for setting airflow value.Described variable air-volume air-conditioning end also includes temperature controller 201 and temperature sensor 3, described temperature controller 201 includes temperature comparison module 2011 and the first PID controller 2012, this temperature comparison module 2011, first PID controller 2012 is connected successively with described selector 2023, described temperature comparison module 2011 is provided with two inputs, temperature sensor 3 described in one of them input connects, another input is used for set temperature value.Described variable air-volume air-conditioning end also includes air-valve 5 and fan valve executor 6, described air-valve 5 is near air outlet 102 place of described casing 1, specifically as shown in Figure 6, described fan valve executor 6 is electrically connected with the output of described selector 2023, and this fan valve executor 6 is for directly controlling the aperture of described air-valve 5.
In addition, above-mentioned PID controller is proportional-integral derivative controller, and above-mentioned fan valve executor 6 is the like product that can accept 0-10V direct current standard voltage signal.
The present embodiment also provides a kind of air quantity control method of variable air-volume air-conditioning end, and its step is as follows:
First design temperature, resets air quantity;
After the temperature that described temperature sensor 3 detects controlled environment obtains temperature measured value, this temperature measured value is passed to described temperature controller 201, temperature comparison module 2011 in temperature controller 201 obtains temperature gap after described temperature measured value and desired temperature being made comparisons, and this temperature gap is passed to the first described PID controller 2012, first PID controller 2012 and temperature gap is made the backward described air balance controller 202 of computing and export the first control signal;
After the wind speed that described air velocity transducer 4 detects casing 1 air intake vent 101 place obtains air quantity measured value, this air quantity measured value is defeated by described air balance controller 202, air quantity comparison module 2021 in air balance controller 202 obtains air quantity difference after making comparisons to described air quantity measured value and air quantity setting value, and this air quantity difference is passed to the second PID controller 2022, the second control signal is produced after second PID controller 2022 pairs air quantity difference does computing, described selector 2023 selects the first control signal as main control signal, second control signal is as auxiliary control signal, and described main control signal and auxiliary control signal are converted to jointly air quantity adjustment signal flow to described fan valve executor 6,
Described fan valve executor 6 controls air-valve 5 aperture according to the air quantity adjustment signal received.
The present embodiment has the following advantages:
1, in described variable air-volume air-conditioning end, its air velocity transducer 4 is along the centre position being axially disposed within air intake vent 101 of casing 1, this air velocity transducer 4 includes DC permanent-magnetic brushless generator 403, leaf dish 402 and multiple rotor 401, the wind then flowing to air outlet 102 from described casing 1 air intake vent 101 can drive described rotor 401 to rotate, the rotation of rotor 401 can drive again the armature shaft of DC permanent-magnetic brushless generator 403 to rotate, described DC permanent-magnetic brushless generator 403 is made directly to export the voltage signal that can reflect the 0-10V of air quantity measured value to described air balance controller 202, thus this air velocity transducer 4 can on the basis meeting certainty of measurement and the air quantity scope of application, also have and do not block, versatility is high, control simple and easy, with the advantage such as cost is low, this air velocity transducer 4 matches with described air balance controller 202 simultaneously, make described variable air-volume air-conditioning end more simple direct on the basis meeting accurately control to the control of air quantity.
2, the air intake vent 101 of casing 1 and the shape of air outlet 102 are all set to circle and match with described air velocity transducer 4, then contribute to improving air velocity transducer 4 and reflect measured wind speed more accurately.
3, casing 1 inwall at contiguous described air intake vent 101 place of the end of described pole 4011, described fan blade 4012 is connected to the end of described pole 4011, wind due to the described casing 1 that circulates is attached to the flowing of described casing 1 inwall, then describedly arrange wind speed or the air quantity that air velocity transducer 4 can be made to measure air intake vent 101 place more exactly.
4, between described fan blade 4012 and pole 4011 or between described pole 4011 and leaf dish 402, angle regulator is installed, then fan blade 4012 can make angle adjustment around described pole 4011, specifically as shown in Figure 2, thus, in the process of debugging air velocity transducer 4, can the measurement of air velocity transducer 4 be made more accurate by described angle adjustment.
5, described temperature controller 201 includes temperature comparison module 2011 and the first PID controller 2012, then temperature comparison module 2011 compares in real time to described temperature measured value and desired temperature, and pass to the first PID controller 2012, first PID controller 2012 and then described temperature gap is made the backward described air balance controller 202 of computing by comparing the temperature gap obtained and export main control signal.
6, described air balance controller 202 includes air quantity comparison module 2021, second PID controller 2022 and selector 2023, then air quantity comparison module 2021 compares in real time to described air quantity measured value and air quantity setting value, and pass to the second PID controller 2022 by comparing the air quantity difference obtained, and air quantity difference is made the backward described selector 2023 of computing and exported auxiliary control signal by the second PID controller 2022, described main control signal and auxiliary control signal are converted to air quantity adjustment signal by described selector 2023 jointly.
7, described variable air-volume air-conditioning end also includes air-valve 5 and fan valve executor 6, described fan valve executor 6 is electrically connected with the output of described selector 2023, then described selector 2023 is to fan valve executor 6 discharge quantity of fan adjustment signal, fan valve executor 6 is controlled air-valve 5 aperture according to this air quantity adjustment signal, thus finally achieves the simple directly control of described variable air-volume air-conditioning end to air quantity.
The air quantity control method of 8, described variable air-volume air-conditioning end using temperature as main control quantity, and using air quantity or wind speed as auxiliary controlled quentity controlled variable, abandoned complicated DDC to control simultaneously, have employed the direct regulable control of PID, make variable air-volume air-conditioning end more simple direct on the basis meeting accurately control to the control of air quantity.
The above embodiment only have expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a variable air-volume air-conditioning end, it includes casing, described casing is provided with air intake vent and air outlet, it is characterized in that, it also includes air velocity transducer and air balance controller, described air velocity transducer includes dc generator, leaf dish and multiple rotor, described dc generator includes armature shaft, dc generator is along the centre position being axially disposed within air intake vent of described casing, described leaf dish is socketed on the armature shaft of described dc generator, described rotor is connected to Ye Panshang evenly and at intervals along the circumference of described leaf dish, the output of described dc generator is connected with the input of described air balance controller.
2. variable air-volume air-conditioning end according to claim 1, is characterized in that, the air intake vent of described casing and the shape of air outlet are all set to circle, and described dc generator is DC permanent-magnetic brushless generator.
3. variable air-volume air-conditioning end according to claim 1, is characterized in that, described rotor includes pole and fan blade, and the cabinet wall at the contiguous described air intake vent place of end of described pole, described fan blade is connected to the end of described pole.
4. variable air-volume air-conditioning end according to claim 3, is characterized in that, is provided with angle regulator between described fan blade and pole or between described pole and leaf dish.
5. variable air-volume air-conditioning end according to claim 1, it is characterized in that, described air balance controller includes air quantity comparison module, the second PID controller and selector, described air quantity comparison module, the second PID controller and selector are electrically connected successively, described air quantity comparison module is provided with two inputs, the output of the dc generator described in one of them input connects, another input is for setting airflow value.
6. variable air-volume air-conditioning end according to claim 5, it is characterized in that, it also includes temperature controller and temperature sensor, described temperature controller includes temperature comparison module and the first PID controller, this temperature comparison module, the first PID controller are connected successively with described selector, described temperature comparison module is provided with two inputs, and the temperature sensor described in one of them input connects, another input is used for set temperature value.
7. variable air-volume air-conditioning end according to claim 6, it is characterized in that, it also includes air-valve and fan valve executor, described air-valve is near the air outlet place of described casing, described fan valve executor is electrically connected with the output of described selector, and this fan valve executor is used for the aperture directly controlling described air-valve.
8. the air quantity control method of variable air-volume air-conditioning end according to claim 7, is characterized in that, its step is as follows:
Prior design temperature and air quantity;
After the temperature that described temperature sensor detects controlled environment obtains temperature measured value, this temperature measured value is passed to described temperature controller, temperature controller exports the first control signal according to the temperature gap between described temperature measured value and desired temperature to described air balance controller;
After the wind speed that described air velocity transducer detects casing air intake vent place obtains air quantity measured value, this air quantity measured value is defeated by described air balance controller, air balance controller produces the second control signal according to the air quantity difference between described air quantity measured value and air quantity setting value, then the first described control signal and the second control signal is converted to jointly air quantity adjustment signal and flows to described fan valve executor;
Described fan valve executor controls valve area according to the air quantity adjustment signal received.
9. the air quantity control method of variable air-volume air-conditioning end according to claim 8, it is characterized in that, when setting air quantity after design temperature in the ban, described selector selects the first control signal as main control signal, and the second control signal is as auxiliary control signal; In the ban set air quantity then design temperature time, described selector selects the first control signal as auxiliary control signal, and the second described control signal is as main control signal.
10. the air quantity control method of variable air-volume air-conditioning end according to claim 8, it is characterized in that, described temperature controller includes temperature comparison module and the first PID controller, this temperature comparison module compares in real time to described temperature measured value and desired temperature, and pass to the first PID controller by comparing the temperature gap obtained, described temperature gap is made the backward described air balance controller of computing and is exported the first control signal by this first PID controller, described air balance controller includes air quantity comparison module, second PID controller and selector, described air quantity comparison module compares in real time to described air quantity measured value and air quantity setting value, and pass to the second PID controller by comparing the air quantity difference obtained, air quantity difference is made the backward described selector of computing and is exported the second control signal by the second PID controller, the first described control signal and the second control signal are converted to air quantity adjustment signal by described selector jointly.
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| CN104676777B (en) * | 2013-11-26 | 2018-03-27 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit |
| EP2899519B1 (en) | 2014-01-24 | 2016-11-16 | Siemens Schweiz AG | Temperature sensing apparatus |
| CN104139843A (en) * | 2014-07-22 | 2014-11-12 | 江苏兆胜空调有限公司 | Electric and automatic air distributor for ships |
| CN106802552A (en) * | 2017-03-30 | 2017-06-06 | 北京新能源汽车股份有限公司 | Control method and device for automobile air conditioner motor and automobile |
| CN110243056B (en) * | 2018-03-08 | 2021-09-10 | 邻元科技（北京）有限公司 | Method and system for optimizing and controlling variable air volume tail end without center self-organization |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203531U (en) * | 1987-03-15 | 1988-01-27 | 吕平 | Magnet suspended cup wind velocity sensor |
| JP2000357012A (en) * | 1999-06-16 | 2000-12-26 | Yamatake Building Systems Co Ltd | Cooperative control system for central control unit and plural terminal control units |
| CN101290155A (en) * | 2007-04-20 | 2008-10-22 | 上海大智科技发展有限公司 | Temperature control method for air quantity variable end device |
| CN201391977Y (en) * | 2009-02-03 | 2010-01-27 | 上海龙万机电设备有限公司 | Variable air-volume air-conditioning end device |
| CN102230944A (en) * | 2011-03-31 | 2011-11-02 | 蒋亚军 | Wind speed detection device |
| CN202973443U (en) * | 2012-11-01 | 2013-06-05 | 谭仲禧 | Variable air volume terminal device of air conditioner |
-
2012
- 2012-11-01 CN CN201210431617.XA patent/CN102889674B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203531U (en) * | 1987-03-15 | 1988-01-27 | 吕平 | Magnet suspended cup wind velocity sensor |
| JP2000357012A (en) * | 1999-06-16 | 2000-12-26 | Yamatake Building Systems Co Ltd | Cooperative control system for central control unit and plural terminal control units |
| CN101290155A (en) * | 2007-04-20 | 2008-10-22 | 上海大智科技发展有限公司 | Temperature control method for air quantity variable end device |
| CN201391977Y (en) * | 2009-02-03 | 2010-01-27 | 上海龙万机电设备有限公司 | Variable air-volume air-conditioning end device |
| CN102230944A (en) * | 2011-03-31 | 2011-11-02 | 蒋亚军 | Wind speed detection device |
| CN202973443U (en) * | 2012-11-01 | 2013-06-05 | 谭仲禧 | Variable air volume terminal device of air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 基于模糊神经网络的变风量空调系统末端装置控制研究;赵志钊;《中国优秀硕士学位论文全文数据库》;20110415;论文第43-46页 * |
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