JP3365544B2 - Air conditioner controller - Google Patents
Air conditioner controllerInfo
- Publication number
- JP3365544B2 JP3365544B2 JP34469397A JP34469397A JP3365544B2 JP 3365544 B2 JP3365544 B2 JP 3365544B2 JP 34469397 A JP34469397 A JP 34469397A JP 34469397 A JP34469397 A JP 34469397A JP 3365544 B2 JP3365544 B2 JP 3365544B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- value
- return air
- air temperature
- set value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、蓄熱槽等から供給
される冷温水を熱源に用いた空調機の制御装置に関し、
特に、負荷の変動に対して素早く応答するとともに、冷
房と暖房を適切なタイミングで自動的に切り替えること
を可能にした空調機制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioner using cold / hot water supplied from a heat storage tank or the like as a heat source.
In particular, the present invention relates to an air conditioner control device capable of quickly responding to a load change and automatically switching between cooling and heating at appropriate timing.
【０００２】[0002]
【発明が解決しようとする課題】従来、冷温水を熱源に
した空調機の場合、測定した還気の温度と室温の設定値
とを比較し、ＰＩＤ制御等により冷温水の流量を調整す
る弁を開閉駆動していた。そのため、負荷の変動に対す
る追随性の点で不充分な場合があった。また、従来の空
調機では、冷房と暖房の切り替えを手動により設定して
いるため、実際の状況にそぐわずに不適切なタイミング
で切り替えられる場合があった。Conventionally, in the case of an air conditioner using cold / hot water as a heat source, a valve for comparing the measured return air temperature with a set value of room temperature and adjusting the flow rate of the cold / hot water by PID control or the like. Was being opened and closed. For this reason, there are cases in which the ability to follow changes in load is insufficient. Further, in the conventional air conditioner, since switching between cooling and heating is manually set, there is a case where switching is performed at an inappropriate timing without fitting the actual situation.
【０００３】[0003]
【課題を解決するための手段】そこで上記課題を解決す
るために、請求項１の発明は、冷房または暖房の運転モ
ードに応じて冷水または温水が供給される冷温水コイル
に室内空気を強制循環させるとともに、冷温水コイルへ
の冷温水流量を流量調整弁の弁開度により調整する空調
機の制御装置であって、冷温水コイルに吸入される還気
の温度を測定する温度測定器と、冷温水コイルから吐出
された給気の温度を測定する温度測定器と、測定された
還気温度と予め入力されている室内温度設定値とにもと
づいて給気温度設定値を算出する給気温度設定値演算部
と、設定されている冷房または暖房の運転モードに応じ
て、測定された給気温度と給気温度設定値演算部で算出
された給気温度設定値とを用いて流量調整弁にＰＩ動作
をさせるための弁駆動量を算出するＰＩ動作量演算部と
を備え、前記給気温度設定値演算部は、給気温度設定値
をＳＰ(゜C)、室内温度設定値をＳＰ 0 (゜C)、還気温度
をＰＶ(゜C)、補正値をα(゜Cdeg.)として、ＰＩ動作量
演算部の算出する給気温度設定値を次式、 ＳＰ＝２×ＳＰ 0 −ＰＶ＋α により算出し、式中の補正値αを冷房モード運転時には
−４゜Cdeg.とし、暖房モード運転時には４゜Cdeg.とす
る演算を行う
ことを特徴とする。In order to solve the above-mentioned problems, the invention of claim 1 forcibly circulates room air in a cold / hot water coil to which cold water or hot water is supplied according to an operation mode of cooling or heating. In addition to being a controller of an air conditioner that adjusts the flow rate of cold and hot water to the hot and cold water coil by the valve opening of the flow rate adjusting valve, a temperature measuring device that measures the temperature of the return air sucked into the hot and cold water coil, inlet air temperature for calculating a temperature measuring device for measuring a temperature of the supply air discharged from the cold water coil, the supply air temperature Do設 value based on the room temperature set value is input in advance and the measured return air temperature A flow rate control valve using the set value calculation unit and the measured supply air temperature and the supply air temperature set value calculated by the supply air temperature set value calculation unit according to the set cooling or heating operation mode. For making PI operation And a PI operation amount calculation unit that calculates the momentum, the supply air temperature set value calculation unit, the supply air temperature set value
SP (° C), room temperature setting value SP 0 (° C), return air temperature
Is the PV (° C) and the correction value is α (° C deg.)
The air supply temperature set value calculated by the calculation unit is calculated by the following equation, SP = 2 × SP 0 −PV + α , and the correction value α in the equation is calculated in the cooling mode operation.
-4 ° C deg. And 4 ° C deg. During heating mode operation
It is characterized by performing a calculation .
【０００４】請求項２の発明は、請求項１の発明におい
て、運転開始時に還気温度ＰＶ(゜C)と室内温度設定値
ＳＰ 0 (゜C)とを比較し、室内温度設定値ＳＰ 0 (゜C)より
も還気温度ＰＶ(゜C)が低い場合に暖房モードとし、そ
うでない場合に冷房モードとしてモード設定をする手段
と、暖房モード運転中に、還気温度ＰＶ(゜C)と室内温
度設定値ＳＰ 0 (゜C)とを比較し、還気温度ＰＶ(゜C)が
室内温度設定値ＳＰ 0 (゜C)よりも高くなりかつ還気温度
ＰＶ(゜C)と室内温度設定値ＳＰ 0 (゜C)の差が予め設定
されている不感帯の温度幅ｎｆの半分の値を越えた場合
に冷房モード運転に切り替える手段と、冷房モード運転
中に、還気温度ＰＶ(゜C)と室内温度設定値ＳＰ 0 (゜C)
とを比較し、還気温度ＰＶ(゜C)が室内温度設定値ＳＰ 0
(゜C)よりも低くなりかつ室内温度設定値ＳＰ 0 (゜C)と
還気温度ＰＶ(゜C)の差が予め設定されている不感帯の
温度幅ｎｆの半分の値を越えた場合に暖房モード運転に
切り替える手段とを備えたことを特徴とする。According to a second aspect of the invention, in the first aspect of the invention, the return air temperature PV (° C) and the room temperature set value are set at the start of operation.
SP 0 (° C) is compared, and if the return air temperature PV (° C) is lower than the indoor temperature set value SP 0 (° C) , the heating mode is set, and if not, the cooling mode is set as the cooling mode. Means, return air temperature PV (° C) and room temperature during heating mode operation
Comparing the degree set value SP 0 (° C), the return air temperature PV (° C) is higher than the room temperature setting value SP 0 (° C) and return air temperature
A means for switching to the cooling mode operation when the difference between PV (° C) and the room temperature set value SP 0 (° C) exceeds half of the preset dead band temperature width nf , and during the cooling mode operation Return air temperature PV (° C) and room temperature set value SP 0 (° C)
And the return air temperature PV (° C) is the indoor temperature set value SP 0
When the temperature becomes lower than (° C) and the difference between the indoor temperature set value SP 0 (° C) and the return air temperature PV (° C) exceeds half the preset dead zone temperature width nf. And a means for switching to heating mode operation.
【０００５】[0005]
【０００６】[0006]
【発明の実施の形態】以下、図に沿って本発明の実施形
態を説明する。図１は本発明が適用される空調機および
その制御装置の概略構成を示す系統図である。図におい
て、１は給気および還気を強制循環させるためのファン
であり、ファン１の吸入側には冷温水コイル２が設置さ
れている。冷温水コイル２には、図示しない蓄熱槽等の
熱源から、冷房モードの場合は冷水が、暖房モードの場
合は温水が供給され、その冷温水の配管の途中に冷温水
弁ＭＶ１が接続されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing a schematic configuration of an air conditioner to which the present invention is applied and its control device. In the figure, 1 is a fan for forcibly circulating the supply air and the return air, and a cold / hot water coil 2 is installed on the suction side of the fan 1. The cold / hot water coil 2 is supplied with cold water in a cooling mode or hot water in a heating mode from a heat source such as a heat storage tank (not shown). There is.
【０００７】また、冷温水コイル２の吸入側には、還気
の温度を測定するための温度測定器３が取り付けられて
おり、測定された還気温度ＰＶ(゜C)は、給気温度設定
値演算部５へ送られる。同じく、ファン１の吐出側に
は、給気の温度を測定するための温度測定器４が取り付
けられており、測定された給気温度は、ＰＩ演算部６へ
送られる。A temperature measuring device 3 for measuring the temperature of the return air is attached to the intake side of the cold / hot water coil 2, and the measured return air temperature PV (° C) is the supply air temperature. It is sent to the set value calculation unit 5. Similarly, a temperature measuring device 4 for measuring the temperature of the supply air is attached to the discharge side of the fan 1, and the measured supply air temperature is sent to the PI calculator 6.
【０００８】これらの構成において、冷房モードまたは
暖房モードのいずれかが、演算部５，６へ入力されて運
転モードの設定がなされるとともに、演算部５へ室内温
度設定値ＳＰ0(゜C)が入力されて設定される。ここで、
演算部５は、設定された運転モードおよび室内温度設定
値ＳＰ0と入力された還気温度測定値ＰＶとにもとづい
て、給気温度設定値ＳＰ(゜C)を算出して、ＰＩ演算部
６へ送る。ＰＩ演算部６は、設定された運転モードおよ
び入力された給気温度設定値ＳＰと給気温度測定値とに
もとづいて、冷温水弁ＭＶ１の流量をＰＩ動作により制
御するための弁開度の駆動量を算出し、駆動信号として
冷温水弁ＭＶ１へ送る。冷温水弁ＭＶ１は、入力された
駆動信号にもとづく弁開度に開閉駆動される。In these configurations, either the cooling mode or the heating mode is input to the calculation units 5 and 6 to set the operation mode, and the calculation unit 5 receives the indoor temperature.
The degree set value SP 0 (° C) is input and set. here,
The calculator 5 sets the operation mode and the room temperature that have been set.
Based on the value SP 0 and the input return air temperature measurement value PV, the supply air temperature set value SP (° C) is calculated and sent to the PI calculator 6. The PI calculation unit 6 determines the valve opening degree for controlling the flow rate of the cold / hot water valve MV1 by the PI operation based on the set operation mode and the input supply air temperature set value SP and the measured supply air temperature. The drive amount is calculated and sent to the cold / hot water valve MV1 as a drive signal. The cold / hot water valve MV1 is driven to open / close at a valve opening degree based on the input drive signal.
【０００９】次に、給気温度設定値演算部５における演
算について説明する。まず、冷房モード時には、次式に
より給気温度設定値ＳＰ(゜C)を算出する。Next, the calculation in the supply air temperature set value calculation unit 5 will be described. First, in the cooling mode, the supply air temperature set value SP (° C) is calculated by the following equation.
【００１０】[0010]
【数１】ＳＰ＝２×ＳＰ0−ＰＶ−αC [Formula 1] SP = 2 × SP 0 −PV−α C
【００１１】ここで、αCは補正値であり、実験の結果
から４゜Cdeg.が最適な値である。なお、この演算で
は、給気温度設定値ＳＰの最小値を１５゜Cとしてお
き、演算の結果が最小値よりも小さい場合、すなわちＳ
Ｐ≦１５゜Cの場合は、最小値１５゜CをＳＰとして出力
する。また、演算の結果が還気温度ＰＶよりも大きい場
合、すなわちＳＰ＞ＰＶのときは、次式により、給気温
度設定値ＳＰ(゜C)を算出する。Here, α C is a correction value, and 4 ° C deg. Is the optimum value from the result of the experiment. In this calculation, the minimum value of the supply air temperature set point SP left as an 15 ° C, if the result of the calculation is smaller than the minimum value, i.e. S
If P ≦ 15 ° C, the minimum value of 15 ° C is output as SP. When the calculation result is larger than the return air temperature PV, that is, when SP> PV, the supply air temperature set value SP (° C) is calculated by the following equation.
【００１２】[0012]
【数２】ＳＰ＝ＳＰ0−αC／２## EQU2 ## SP = SP 0 −α C / 2
【００１３】次に、暖房モード時には、次式により、給
気温度設定値ＳＰ(゜C)を算出する。Next, in the heating mode, the supply air temperature set value SP (° C) is calculated by the following equation.
【００１４】[0014]
【数３】ＳＰ＝２×ＳＰ0−ＰＶ＋αH ## EQU3 ## SP = 2 × SP 0 −PV + α H
【００１５】ここで、αHは補正値であり、実験の結果
から４゜Cdeg.が最適な値である。なお、この演算で
は、給気温度設定値ＳＰの最大値を４０゜Cとしてお
き、演算の結果が最大値よりも大きい場合、すなわち、
ＳＰ≧４０゜Cの場合は、最大値４０゜CをＳＰとして出
力する。また、演算の結果が還気温度ＰＶよりも小さい
場合、すなわち、ＳＰ＜ＰＶのときは、次式により、給
気温度設定値ＳＰ(゜C)を算出する。Here, α H is a correction value, and the optimum value is 4 ° C deg. From the result of the experiment. In this operation, the maximum value of the supply air temperature set point SP left as an 40 ° C, if the result of the operation is greater than the maximum value, i.e.,
When SP ≧ 40 ° C, the maximum value of 40 ° C is output as SP. When the calculation result is smaller than the return air temperature PV, that is, when SP <PV, the supply air temperature set value SP (° C) is calculated by the following equation.
【００１６】[0016]
【数４】ＳＰ＝ＳＰ0+αH／２## EQU4 ## SP = SP 0 + α H / 2
【００１７】なお、上記各式における、ＳＰ，ＳＰ0，
ＰＶの値は、０．５゜C刻みとし、小数点以下の端数値
は、例えばＰＶの場合、それぞれ、ＰＶ≦０．２５→
０．０、０．２５＜ＰＶ≦０．７５→０．５、０．７５
＜ＰＶ→１とする。また、上述した、給気温度設定値Ｓ
Ｐの最小値および最大値、補正値αC、αHの値は、上述
した値に限定されるものではなく、空調機の規模、負荷
の大小その他の現場の状況に応じて適宜変更可能な値で
ある。In the above equations, SP, SP 0 ,
The value of PV is set in 0.5 ° C increments, and the fractional value after the decimal point is PV ≦ 0.25 in the case of PV, respectively.
0.0, 0.25 <PV ≦ 0.75 → 0.5, 0.75
<PV → 1. Further, the above-described air supply temperature setpoint S
The minimum and maximum values of P and the correction values α C and α H are not limited to the above-mentioned values, and can be changed as appropriate according to the scale of the air conditioner, the size of the load, and other site conditions. It is a value.
【００１８】次に、ＰＩ演算部６における演算について
説明する。ここでは、弁の今回の出力開度をＹn（％)と
し、比例動作出力をＰ（％)、積分動作出力をＩ（％)と
すると、弁の出力開度Ｙnは次式のようになる。Next, the calculation in the PI calculation unit 6 will be described. Here, if the current output opening of the valve is Y n (%), the proportional operation output is P (%), and the integral operation output is I (%), the valve output opening Y n is given by the following equation. become.
【００１９】[0019]
【数５】Ｙn＝Ｐ＋Ｉ## EQU5 ## Y n = P + I
【００２０】ここで、Ｙn（％)の求められる範囲は、−
１００％≦Ｙn≦１００％である。また、比例動作出力
Ｐの項は次式のようになる。Here, the required range of Y n (%) is −
100% ≦ Y n ≦ 100%. Further, the term of the proportional operation output P is as follows.
【００２１】[0021]
【数６】Ｐ＝Ｋc×（ｅn−ｅn-1)## EQU6 ## P = K c × (e n −e n-1 )
【００２２】ここで、Ｋcはコントロ−ルゲインであ
り、ｅnは今回の偏差、ｅn-1は前回の偏差である。な
お、ＰＩ制御開始時の最初の演算では、ｅn-1＝０とす
る。また、積分動作出力Ｉの項は次式のようになる。Here, K c is the control gain, e n is the current deviation, and e n-1 is the previous deviation. In the first calculation at the start of PI control, e n-1 = 0. Further, the term of the integral operation output I is as follows.
【００２３】[0023]
【数７】Ｉ＝Ｋc×（△ｔ／ＴＩ)×ｅn Equation 7] I = K c × (△ t / TI) × e n
【００２４】ここで、△ｔは時間変化量（ｓ)すなわち
ＰＩ制御時間である。また、ＴＩは積分時間（ｓ)であ
る。Here, Δt is the time variation (s), that is, the PI control time. TI is the integration time (s).
【００２５】次に、ＰＩ演算部６により求められた弁の
今回の出力開度をＹn（％)から、弁の開閉時間を算出す
る場合について説明する。開閉時間ｔは、弁開度Ｙnか
ら次式のように求められる。Next, a case will be described in which the valve opening / closing time is calculated from the current output opening degree of the valve obtained by the PI calculation unit 6 from Y n (%). The opening / closing time t is obtained from the valve opening Y n as in the following equation.
【００２６】[0026]
【数８】ｔ＝（Ｙn×Ｔ)／１００## EQU8 ## t = (Y n × T) / 100
【００２７】ここで、Ｔは冷温水弁ＭＶ１の開閉に要す
る時間（ｓ)であり、得られた開閉時間ｔの値により、
冷温水弁ＭＶ１の駆動は次のように行われる。まず、ｔ
＜−１のとき、ｔ秒間閉出力する。また、ｔ＞＋１のと
き、ｔ秒間開出力する。さらに、｜ｔ｜≦１のときは、
開閉出力無しとする。本発明は、上述したように、給気
温度設定値演算部５とＰＩ演算部６とを２段に接続し
た、いわゆるカスケード制御としたことで、出力側に遅
れやむだ時間があっても、それら遅れやむだ時間を最小
限にすることが可能となり、負荷の変動に対する応答性
が改善される。Here, T is the time (s) required to open / close the cold / hot water valve MV1, and according to the value of the obtained opening / closing time t,
The driving of the cold / hot water valve MV1 is performed as follows. First, t
When <-1, the output is closed for t seconds. When t> +1, the output is open for t seconds. Furthermore, when | t | ≦ 1,
No open / close output. As described above, the present invention uses so-called cascade control in which the supply air temperature set value calculation unit 5 and the PI calculation unit 6 are connected in two stages, so that even if there is delay or dead time on the output side, These delays and dead times can be minimized, and the responsiveness to load fluctuations is improved.
【００２８】次に、請求項２の発明の運転モードの自動
設定について説明する。図２は、その自動判断の手順を
示す説明図である。ここでは、室内温度設定値と還気温
度から、冷暖房モード判断を自動で行う。最初の運転の
開始時に、室内温度設定値ＳＰ0(゜C)と還気温度ＰＶ
(゜C)を比較し、ＳＰ0＞ＰＶの場合、暖房モードの設定
をする。反対に、ＳＰ0≦ＰＶの場合、冷房モードの設
定をする。Next, the automatic setting of the operation mode of the invention of claim 2 will be described. FIG. 2 is an explanatory diagram showing the procedure of the automatic determination. Here, the cooling / heating mode determination is automatically performed based on the indoor temperature set value and the return air temperature. At the start of the first operation, the room temperature set value SP 0 (° C) and the return air temperature PV
(° C) is compared, and if SP 0 > PV, the heating mode is set. On the contrary, when SP 0 ≦ PV, the cooling mode is set.
【００２９】次に、冷房モードが設定されて運転が開始
された後には、室内温度設定値ＳＰ0を中心にした不感
帯ｎｆを予め設定しておき、還気温度ＰＶと室内温度設
定値ＳＰ0とを比較する。ここで、還気温度ＰＶが次式
を満たす場合は、暖房モード運転に切り替える。Next, after the cooling mode is set and the operation is started, the dead zone nf centering on the indoor temperature set value SP 0 is set in advance, and the return air temperature PV and the indoor temperature setting are set.
Compare with constant value SP 0 . Here, when the return air temperature PV satisfies the following equation, the mode is switched to the heating mode operation.
【００３０】[0030]
【数９】ＳＰ0−ＰＶ＞ｎｆ／２[Formula 9] SP 0 −PV> nf / 2
【００３１】また、暖房モードが設定された運転中に
も、同様に還気温度ＰＶと室内温度設定値ＳＰ0とを比
較する。ここで、還気温度ＰＶが次式を満たす場合は、
冷房モード運転に切り替える。Further, even while driving the heating mode is set, similarly to compare the return air temperature PV and the indoor temperature set point SP 0. Here, when the return air temperature PV satisfies the following equation,
Switch to cooling mode operation.
【００３２】[0032]
【数１０】ＳＰ0−ＰＶ＜−ｎｆ／２[Equation 10] SP 0 −PV <−nf / 2
【００３３】なお、図２では、不感帯ｎｆを２゜Cdeg.
と設定した場合のモード切り替えを示している。上述し
た運転モードの設定を図１に示した制御装置に組み込ん
でおくことでモード設定が自動化され、操作員が、季節
や天候に応じてモード設定をする煩わしさから解放され
るとともに、誤ったモードの設定がなされることも解消
される。In FIG. 2, the dead zone nf is 2 ° Cdeg.
It shows the mode switching when set to. By incorporating the above-mentioned operation mode settings into the control device shown in FIG. 1, the mode setting is automated, which relieves the operator from the trouble of setting the mode depending on the season and the weather, and makes a mistake. The setting of the mode is also canceled.
【００３４】[0034]
【発明の効果】以上述べたように請求項１の発明によれ
ば、給気温度設定値が、予め入力されている室内温度設
定値と測定した還気温度にもとづいて算出され、さら
に、その給気温度設定値を用いたＰＩ動作により冷温水
の流量調整用弁が開閉制御されることにより、負荷の変
動に対する追随性が向上する。As described above, according to the first aspect of the present invention, the supply air temperature set value is the room temperature setting value that is previously input.
Calculated based on the measured return air temperature as a constant value, and the open / close control of the flow control valve for cold / warm water by the PI operation using the supply air temperature set value improves followability to load fluctuations. To do.
【００３５】請求項２の発明によれば、冷房または暖房
の運転モードが、還気温度と室内温度設定値とを比較し
て自動的に設定されるため、手動による設定操作が不要
になるとともに、モード設定の誤りが防止される。According to the second aspect of the present invention, the operation mode of cooling or heating is automatically set by comparing the return air temperature with the room temperature set value , so that a manual setting operation is not necessary. , Mode setting error is prevented.
【図１】本発明が適用される空調機の制御装置の概略構
成を示す系統図である。FIG. 1 is a system diagram showing a schematic configuration of a control device for an air conditioner to which the present invention is applied.
【図２】本発明におけるモード設定の手順を示す説明図
である。FIG. 2 is an explanatory diagram showing a mode setting procedure in the present invention.
１ ファン ２ 冷温水コイル ３ 温度測定器 ４ 温度測定器 ５ 給気温度設定値演算部 ６ ＰＩ演算部 ＭＶ１ 冷温水弁 1 fan 2 Cold / hot water coil 3 Temperature measuring device 4 Temperature measuring device 5 Air temperature setting value calculator 6 PI calculator MV1 cold / hot water valve
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−113005（ＪＰ，Ａ) 特開 平１−118055（ＪＰ，Ａ) 特開 平５−288385（ＪＰ，Ａ) 特開 平４−283343（ＪＰ，Ａ) 特開 昭61−265436（ＪＰ，Ａ) 特開 平７−27394（ＪＰ，Ａ) 実開 平３−42949（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24F 11/02 102 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-9-113005 (JP, A) JP-A 1-118055 (JP, A) JP-A 5-288385 (JP, A) JP-A 4- 283343 (JP, A) JP 61-265436 (JP, A) JP 7-27394 (JP, A) Actually open 3-42949 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F24F 11/02 102
Claims (2)
水または温水が供給される冷温水コイルに室内空気を強
制循環させるとともに、冷温水コイルへの冷温水流量を
流量調整弁の弁開度により調整する空調機の制御装置で
あって、 冷温水コイルに吸入される還気の温度を測定する温度測
定器と、 冷温水コイルから吐出された給気の温度を測定する温度
測定器と、 測定された還気温度と予め入力されている室内温度設定
値とにもとづいて給気温度設定値を算出する給気温度設
定値演算部と、 設定されている冷房または暖房の運転モードに応じて、
測定された給気温度と給気温度設定値演算部で算出され
た給気温度設定値とを用いて流量調整弁にＰＩ動作をさ
せるための弁駆動量を算出するＰＩ動作量演算部と、 を備え、 前記給気温度設定値演算部は、 給気温度設定値をＳＰ(゜C)、室内温度設定値をＳＰ
0 (゜C)、還気温度をＰＶ(゜C)、補正値をα(゜Cdeg.)と
して、ＰＩ動作量演算部の算出する給気温度設定値を次
式、 ＳＰ＝２×ＳＰ 0 −ＰＶ＋α により算出し、式中の補正値αを冷房モード運転時には
−４゜Cdeg.とし、暖房モード運転時には４゜Cdeg.とす
る演算を行う ことを特徴とする空調機制御装置。1. A cooling system according to an operation mode of cooling or heating.
Forcing indoor air into a cold / hot water coil that is supplied with water or hot water.
While controlling circulation, the flow rate of hot and cold water to the hot and cold water coil
With an air conditioner control device that adjusts according to the valve opening of the flow rate adjustment valve
There Temperature measurement to measure the temperature of the return air drawn into the cold / hot water coil
Calibrator, Temperature to measure the temperature of the supply air discharged from the cold / hot water coil
Measuring instrument, Room with measured return air temperature and pre-enteredTemperature setting
valueSupply temperature based onSettingSupply air temperature setting to calculate constant value
A constant value calculator, Depending on the set cooling or heating operation mode,
Calculated by the measured supply temperature and the supply temperature setting value calculator
PI operation to the flow rate control valve using
A PI operation amount calculation unit that calculates a valve drive amount for Equipped with, The air supply temperature set value calculation unit, Supply air temperature set value SP (° C), indoor temperature set value SP
0 (° C), return air temperature PV (° C), correction value α (° C deg.)
Then, the supply air temperature set value calculated by the PI operation amount calculation unit is calculated as follows.
formula, SP = 2 × SP 0 -PV + α The correction value α in the formula is calculated by
-4 ° C deg. And 4 ° C deg. During heating mode operation
Calculation An air conditioner control device characterized by the above.
て、 運転開始時に還気温度ＰＶ(゜C)と室内温度設定値ＳＰ 0
(゜C)とを比較し、室内温度設定値ＳＰ 0 (゜C)よりも還
気温度ＰＶ(゜C)が低い場合に暖房モードとし、そうで
ない場合に冷房モードとしてモード設定をする手段と、 暖房モード運転中に、還気温度ＰＶ(゜C)と室内温度設
定値ＳＰ 0 (゜C)とを比較し、還気温度ＰＶ(゜C)が室内
温度設定値ＳＰ 0 (゜C)よりも高くなりかつ還気温度ＰＶ
(゜C)と室内温度設定値ＳＰ 0 (゜C)の差が予め設定され
ている不感帯の温度幅ｎｆの半分の値を越えた場合に冷
房モード運転に切り替える手段と、 冷房モード運転中に、還気温度ＰＶ(゜C)と室内温度設
定値ＳＰ 0 (゜C)とを比較し、還気温度ＰＶ(゜C)が室内
温度設定値ＳＰ 0 (゜C)よりも低くなりかつ室内温度設定
値ＳＰ 0 (゜C)と還気温度ＰＶ(゜C)の差が予め設定され
ている不感帯の温度幅ｎｆの半分の値を越えた場合に暖
房モード運転に切り替える手段と、 を備えたことを特徴とする空調機制御装置。2. The air conditioner controller according to claim 1, wherein the return air temperature PV (° C) and the room temperature set value SP 0 are set at the start of operation.
(° C) and means for setting the heating mode when the return air temperature PV (° C) is lower than the room temperature set value SP 0 (° C) , and setting the mode as the cooling mode when not. During the heating mode operation, the return air temperature PV (° C) and the room temperature are set.
Compared with the fixed value SP 0 (° C) , the return air temperature PV (° C) is the indoor
It becomes higher than the temperature set value SP 0 (° C) and the return air temperature PV
(° C) and the room temperature set value SP 0 (° C) exceeds the half value of the preset dead band temperature range nf , the means to switch to the cooling mode operation, and during the cooling mode operation , Return air temperature PV (° C) and indoor temperature setting
Compared with the fixed value SP 0 (° C) , the return air temperature PV (° C) is the indoor
It becomes lower than the temperature set value SP 0 (° C) and the room temperature is set.
And a means for switching to the heating mode operation when the difference between the value SP 0 (° C) and the return air temperature PV (° C) exceeds half the preset dead band temperature width nf. Air conditioner control device characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34469397A JP3365544B2 (en) | 1997-12-15 | 1997-12-15 | Air conditioner controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34469397A JP3365544B2 (en) | 1997-12-15 | 1997-12-15 | Air conditioner controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11173631A JPH11173631A (en) | 1999-07-02 |
| JP3365544B2 true JP3365544B2 (en) | 2003-01-14 |
Family
ID=18371255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34469397A Expired - Fee Related JP3365544B2 (en) | 1997-12-15 | 1997-12-15 | Air conditioner controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3365544B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456843A (en) * | 2014-11-19 | 2015-03-25 | 北京百度网讯科技有限公司 | Energy saving control method and device of air conditioner at tail end of data center machine room |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001099457A (en) * | 1999-09-29 | 2001-04-13 | Mitsubishi Electric Corp | Air conditioner |
| JP4547630B2 (en) * | 2006-02-10 | 2010-09-22 | 株式会社日立プラントテクノロジー | Air temperature control method and control system |
| DE102014017495B4 (en) * | 2014-11-27 | 2022-01-27 | Drägerwerk AG & Co. KGaA | Heating control device for an infant incubator, incubator and method for heating control of an incubator |
| CN106679068B (en) * | 2016-11-28 | 2019-07-05 | 深圳达实智能股份有限公司 | The chilled water supply water temperature setting method and system of central air conditioner system refrigeration host computer |
| US11060779B2 (en) | 2018-02-07 | 2021-07-13 | Mitsubishi Electric Corporation | Air-conditioning system and air-conditioning control method |
| CN110469925B (en) * | 2018-05-10 | 2022-11-29 | 开利公司 | HVAC system and control method thereof |
| CN108954717A (en) * | 2018-07-28 | 2018-12-07 | 广东美的暖通设备有限公司 | Control method, air conditioner and the computer readable storage medium of air conditioner |
| CN110657549B (en) * | 2019-10-14 | 2020-11-06 | 珠海格力电器股份有限公司 | Temperature controller, fan coil air conditioning system and control method thereof |
| CN115289639A (en) * | 2022-09-28 | 2022-11-04 | 深圳市英威腾网能技术有限公司 | Control method, device, equipment and medium for fluorine pump air conditioner |
-
1997
- 1997-12-15 JP JP34469397A patent/JP3365544B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456843A (en) * | 2014-11-19 | 2015-03-25 | 北京百度网讯科技有限公司 | Energy saving control method and device of air conditioner at tail end of data center machine room |
| CN104456843B (en) * | 2014-11-19 | 2017-04-05 | 北京百度网讯科技有限公司 | The energy-saving control method and device of data center machine room air conditioning terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11173631A (en) | 1999-07-02 |
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