WO2019138473A1

WO2019138473A1 - Air conditioning control system and air conditioning control method

Info

Publication number: WO2019138473A1
Application number: PCT/JP2018/000350
Authority: WO
Inventors: 理中島; 孝洋中井; 有輝森
Original assignee: 三菱電機株式会社
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2019-07-18
Also published as: JPWO2019138473A1

Abstract

This air conditioning control system (1) is provided with: input units (1081) that set setting room temperatures in respective rooms (20); room temperature detection units for detecting room temperatures in the respective room (20); a heat source (101) that generates a heat medium of an instructed temperature; valves (106) for the respective rooms (20), the valves controlling the flow rate of the heat medium circulating between the heat source (101) and indoor terminals (102) that are in the respective rooms and exchange heat between the respective indoor (20) spaces and the heat medium; a room selection unit (32) for selecting the room (20) having the valve (106) which has, within the average opening degree range of the valves (106) for the respective rooms (20), the largest average opening degree after a predetermined elapsed time; and a control unit (33) which instructs the temperature of the heat medium to the heat source (101) so that the average opening degree of the valve (106) for the corresponding room (20) is at least the average opening degree of the valves (106) for the other rooms (20), and the room temperature of the corresponding room (20) is close to the setting room temperature. Thus, the air conditioning control system (1) exhibits an energy saving effect.

Description

空気調和制御システム及び空気調和制御方法Air conditioning control system and air conditioning control method

　この発明は、熱源で加熱又は冷却を行った熱媒体を室内の空気調和機の端末に搬送し、室内を空気調和（空調）する方式の空気調和制御システム及び空気調和制御方法に関するものである。 The present invention relates to an air conditioning control system and an air conditioning control method in which a heat medium which has been heated or cooled by a heat source is conveyed to a terminal of an air conditioner in a room, and the room is air conditioned (air conditioned).

　従来、熱源で加熱又は冷却を行った熱媒体を室内の空気調和機（空調端末）に搬送し、室内を空気調和する方式の空気調和制御システムにおいて、熱媒体の温度の目標値を決定する制御装置では、熱需要を確実に満足しながら省エネ効果を得るために、熱需要と相関の高い外気温に応じて熱媒体の温度の目標値を決定する。特許文献１では、例えば、暖房することを前提としており、予め設定した温度より外気温が高い場合には４０℃に、低い場合には６０℃に目標値を設定してシステムの効率向上を図っている。 Conventionally, in an air conditioning control system of a system that conveys a heat medium that has been heated or cooled by a heat source to a room air conditioner (air conditioning terminal) and controls the room in air, control for determining a target value of the temperature of the heat medium In the apparatus, in order to obtain the energy saving effect while satisfying the heat demand surely, the target value of the temperature of the heat medium is determined according to the outside air temperature highly correlated with the heat demand. In Patent Document 1, for example, heating is assumed, and a target value is set to 40 ° C. when the outside air temperature is higher than a preset temperature, and to 60 ° C. when the outside temperature is lower, thereby improving the efficiency of the system. ing.

　また、高度化した例としては、特許文献２では、建物熱損失係数（Ｑ）と建物の床面積（Ａ）、外気温（Ｔ_a）、設定室温（Ｔ_s）から必要な熱媒体の温度（Ｔ_os）を決定する。このとき、熱媒体の温度と室温とが安定したら空気調和システムの能力と熱需要とがバランスしたと考え、安定状態の能力を計算し、建物熱損失係数を更新する。 Further, as an advanced example, in Patent Document 2, the temperature of the heat medium necessary from the building heat loss coefficient (Q), the floor area of the building (A), the outside air temperature (T _a ), and the set room temperature (T _s ) Determine ( _Tos ). At this time, when the temperature of the heat medium and the room temperature are stabilized, it is considered that the capacity of the air conditioning system and the heat demand are balanced, the capacity of the stable state is calculated, and the building heat loss coefficient is updated.

特開２００１－１２４３４９Japanese Patent Application Publication No. 2001-124349 特開２００９－２７５９４１JP, 2009-275941

　このような空気調和システムにあっては、室の使用状態、及び室内端末の最大能力に応じて、室毎に要求される熱媒体の温度がばらつくと、熱需要を満たせなくなる。例えば、特許文献２では各端末で処理する能力が均一であると仮定し、その仮定のもとで必要となる熱媒体の温度を決定している。このため、同じ熱媒体の温度を与えたときに、発揮する能力が室内端末間で異なる場合には、熱需要に対する過剰供給又は供給不足を発生する。 In such an air conditioning system, if the temperature of the heat medium required for each room varies depending on the use state of the room and the maximum capacity of the indoor terminal, the heat demand can not be satisfied. For example, in Patent Document 2, it is assumed that the processing capability at each terminal is uniform, and the temperature of the heat medium required under the assumption is determined. For this reason, when the same heat transfer medium temperature is given, if the ability to be exhibited is different among indoor terminals, an excess supply or a shortage of supply for heat demand occurs.

　この発明は、上記のような問題点を解決するためになされたものであり、すべての室で熱需要の過剰供給又は供給不足が生じず、省エネルギーとなるように熱媒体の温度を決定する空気調和制御システム及び空気調和制御方法を得ることを目的としている。 The present invention has been made to solve the problems as described above, and it is an air that determines the temperature of the heat medium so as to save energy without generating excess supply or shortage of heat demand in all the rooms. The object is to obtain a harmony control system and an air conditioning control method.

　この発明の空気調和制御システムは、各室の設定室温を設定する入力部と、各室の室温を検知する室温検知部と、指令された温度の熱媒体を生成する熱源と、各室内空間と熱媒体とで熱交換する各室の室内端末及び熱源の間を循環する熱媒体の流量を調整する各室の弁と、所定の経過時間における各室の弁の平均開度の内、最も平均開度が大きくなる当該弁の室を選択する室選択部と、該室の弁の平均開度が他の室の弁の平均開度以上で、かつ該室の室温が設定室温に近づくように熱媒体の温度を熱源に指令する制御部とを備えた空気調和制御システムである。 The air conditioning control system according to the present invention comprises an input unit for setting the set room temperature of each chamber, a room temperature detector for detecting the room temperature of each chamber, a heat source for generating a heat medium of a commanded temperature, and each indoor space Among the average opening degree of the valve of each chamber which adjusts the flow rate of the heat medium circulating between the indoor terminal and heat source of each chamber that exchanges heat with the heat medium, and the average opening degree of the valve of each chamber in a predetermined elapsed time The chamber selector for selecting the chamber of the valve where the opening becomes large, and the average opening of the valve of the chamber is equal to or higher than the average opening of the valves of the other chambers, and the room temperature of the room approaches the set room temperature It is an air conditioning control system provided with the control part which commands the temperature of a heat carrier to a heat source.

　また、この発明の空気調和制御方法は、各室の設定室温を設定する入力工程と、各室の室温を検知する室温検知工程と、熱源が指令された温度の熱媒体を生成する生成工程と、各室の弁が各室内空間と熱媒体とで熱交換する各室の室内端末及び熱源の間を循環する熱媒体の流量を調整する調整工程と、所定の経過時間における各室の弁の平均開度の内、最も平均開度が大きくなる当該弁の室を選択する室選択工程と、該室の弁の平均開度が他の室の弁の平均開度以上で、かつ該室の室温が設定室温に近づくように熱媒体の温度を熱源に指令する制御工程とを備えた空気調和制御方法である。 In the air conditioning control method according to the present invention, an input process of setting a set room temperature of each chamber, a room temperature detection process of detecting the room temperature of each chamber, and a generation process of generating a heat medium of a temperature at which a heat source is instructed An adjusting step of adjusting a flow rate of a heat medium circulating between an indoor terminal of each room where the valve of each room exchanges heat with each indoor space and the heat medium and a heat source; and a valve of each room at a predetermined elapsed time The chamber selecting step of selecting the chamber of the valve having the largest average opening among the average opening, and the average opening of the valve of the chamber being equal to or higher than the average opening of the valves of the other chambers And a control step of commanding the temperature of the heat medium to the heat source so that the room temperature approaches the set room temperature.

　この発明にかかる空気調和制御システム及び空気調和制御方法によれば、省エネルギーとなるように熱媒体の温度を決定することができる。 According to the air conditioning control system and the air conditioning control method according to the present invention, the temperature of the heat medium can be determined so as to save energy.

図１は本発明の実施の形態１による空気調和制御システムが導入された空間を示す概略図である。FIG. 1 is a schematic view showing a space into which an air conditioning control system according to a first embodiment of the present invention is introduced. 図２は本発明の実施の形態１による空気調和制御システムを示す概略図である。FIG. 2 is a schematic view showing an air conditioning control system according to Embodiment 1 of the present invention. 図３は本発明の実施の形態１による空気調和制御システムの水・冷媒回路を示す概略図である。FIG. 3 is a schematic view showing a water / refrigerant circuit of the air conditioning control system according to Embodiment 1 of the present invention. 図４は本発明の実施の形態１による空気調和制御システムの状況に応じた弁の開閉動作について示した図である。FIG. 4 is a view showing a valve opening / closing operation according to the condition of the air conditioning control system according to the first embodiment of the present invention. 図５は本発明の実施の形態１による空気調和制御装置の構成を示した図である。FIG. 5 is a diagram showing the configuration of the air conditioning control apparatus according to the first embodiment of the present invention. 図６は本発明の実施の形態１による空気調和制御装置のフローを示した図である。FIG. 6 is a diagram showing a flow of the air conditioning control device according to the first embodiment of the present invention. 図７は本発明の実施の形態１による空気調和制御装置が行う制御を表したブロック線図である。FIG. 7 is a block diagram showing control performed by the air conditioning control apparatus according to the first embodiment of the present invention. 図８は本発明の実施の形態２による空気調和制御システムの状況に応じた弁の開閉動作について示した図である。FIG. 8 is a diagram showing the opening and closing operation of the valve according to the condition of the air conditioning control system according to the second embodiment of the present invention. 図９は本発明の実施の形態２による空気調和制御装置の構成を示した図である。FIG. 9 is a view showing a configuration of an air conditioning control apparatus according to Embodiment 2 of the present invention. 図１０は本発明の実施の形態２による空気調和制御装置のフローを示した図である。FIG. 10 is a diagram showing a flow of the air conditioning control device according to Embodiment 2 of the present invention. 図１１は本発明の実施の形態２による空気調和制御装置が行う制御を表したブロック線図である。FIG. 11 is a block diagram showing control performed by the air conditioning control apparatus according to Embodiment 2 of the present invention.

実施の形態１．
　図１は本発明の実施の形態１による空気調和制御システム１が導入された空間２を示す概略図である。実施の形態１では、熱媒体として水、熱源１０１としてヒートポンプを用いた暖房システムを例に説明する。空気調和制御システム１は空間２の中にある少なくとも２以上の隔てられた室２１，２２の空気調和（空調）を行う。空気調和制御システム１は、熱源１０１、室内端末１０２、それらを接続して水を流す配管１０３と、水を搬送するポンプ１０４から構成される。室内端末１０２としては、ラジエータ、ファンコイルユニット等が用いられる。また、給湯用の高温水を貯蔵するタンク１０５が暖房用とは別に設置されていてもよい。さらに、タンク１０５内に熱交換器を設けて、熱源１０１を往来する水と室内端末１０２を往来する水とを分別してもよい。熱源１０１で生成した温水は、配管１０３を通ってポンプ１０４で室内端末１０２まで搬送される。温水は室内端末１０２で熱媒体の(水)の熱を室内空間に放熱し、室２１，２２を加温する。放熱後、温水は配管１０３を通って熱源１０１又はタンク１０５に戻る。 Embodiment 1
FIG. 1 is a schematic view showing a space 2 in which an air conditioning control system 1 according to a first embodiment of the present invention is introduced. In the first embodiment, a heating system using water as a heat medium and a heat pump as a heat source 101 will be described as an example. The air conditioning control system 1 performs air conditioning (air conditioning) of at least two or more

separated chambers

21 and 22 in the space 2. The air conditioning control system 1 includes a heat source 101, an indoor terminal 102, a pipe 103 for connecting them and allowing the water to flow, and a pump 104 for transporting the water. As the indoor terminal 102, a radiator, a fan coil unit or the like is used. In addition, a tank 105 for storing high temperature water for hot water supply may be installed separately from the one for heating. Furthermore, a heat exchanger may be provided in the tank 105 to separate water flowing in and out of the heat source 101 from water flowing in and out of the indoor terminal 102. Hot water generated by the heat source 101 is conveyed to the indoor terminal 102 by the pump 104 through the pipe 103. The hot water dissipates the heat of the heat medium (water) to the indoor space at the indoor terminal 102 and heats the

chambers

21 and 22. After the heat release, the hot water returns to the heat source 101 or the tank 105 through the pipe 103.

　室内端末１０２の近傍には室内端末１０２に流入する温水の流量を制御できる弁１０６が設置されている。各室２１，２２の室温を室温検知部である室温センサ１０７が検知する。弁１０６は、自律的に開閉を行い、室温を設定室温に保つ。例えば、各室２１，２２毎に設けられた室温センサ１０７が計測する室温と、設定室温との偏差によって、室温を設定室温に保つように弁１０６の開閉を自律的に行う。この偏差と現在の開閉状態とに応じて、弁１０６を開状態又は閉状態のどちらかに自律的に動作するからである。具体例としては、設定室温が２６℃の時に、室温が２５．５℃（設定室温－０．５℃）になったら開状態に、室温が２６．５℃（設定室温＋０．５℃）になったら閉状態に遷移し、それ以外の場合は現在の状態を維持するように動作する。この他にも、サーモスタットのように直接室温を計測しなくても、所望の温度近傍で開閉を繰り返す仕組みのものでもよいし、デューティー制御のアルゴリズムによって開閉状態を自律的に決定するものでもよい。 In the vicinity of the indoor terminal 102, a valve 106 capable of controlling the flow rate of the hot water flowing into the indoor terminal 102 is installed. A room temperature sensor 107, which is a room temperature detection unit, detects the room temperature of each of the

chambers

21 and 22. The valve 106 opens and closes autonomously to keep the room temperature at the set room temperature. For example, the valve 106 is autonomously opened and closed so as to keep the room temperature at the set room temperature by the deviation between the room temperature measured by the room temperature sensor 107 provided in each of the

rooms

21 and 22 and the set room temperature. This is because the valve 106 operates autonomously in either the open state or the closed state according to the deviation and the current open / close state. As a specific example, when the setting room temperature is 26 ° C., when the room temperature reaches 25.5 ° C. (setting room temperature-0.5 ° C.), the room temperature becomes 26.5 ° C. (setting room temperature + 0.5 ° C.) It will transition to the closed state when it becomes, otherwise it will operate to maintain the current state. Other than this, it may be a mechanism that does not directly measure the room temperature like a thermostat, or it may be a mechanism that repeats opening and closing near a desired temperature, or it may be one that autonomously determines an opening and closing state by a duty control algorithm.

　設定室温は空気調和制御システム１の利用者によってシステムに入力される。例えば、リモコン１０８に内蔵される入力部１０８１（図１では図示せず。）を用いて、使用者は各室２１，２２の設定室温を設定することができる。設定室温は各室２１，２２に一つずつ値が設定されてもよいし、一つの設定室温を各室２１，２２で共用してもよい。また、室内端末１０２又は弁１０６に入力部１０８１を設けて入力するようにしてもよい。さらに、室内端末１０２又は弁１０６に無線通信インターフェイスを設け、スマートフォンのような無線端末を用いて入力できるように構成してもよい。空気調和制御装置１０９は熱源１０１に有線又は無線で接続されたり、熱源１０１の筐体内に同梱されたりして、熱源１０１が生成する温水温度の目標値を熱源１０１に指令する。熱源１０１は、加熱又は冷却を行うことで指定された温度の熱媒体（この例では水）を生成することになる。 The set room temperature is input to the system by the user of the air conditioning control system 1. For example, the user can set the set room temperature of each of the

chambers

21 and 22 using the input unit 1081 (not shown in FIG. 1) incorporated in the remote control 108. The set room temperature may be set for each of the

chambers

21 and 22 one by one, or one set room temperature may be shared by the

chambers

21 and 22. In addition, the input unit 1081 may be provided to the indoor terminal 102 or the valve 106 for input. Furthermore, the indoor terminal 102 or the valve 106 may be provided with a wireless communication interface so that input can be performed using a wireless terminal such as a smartphone. The air conditioning control device 109 is connected to the heat source 101 by wire or wireless or is bundled in a casing of the heat source 101, and instructs the heat source 101 a target value of the temperature of the hot water generated by the heat source 101. The heat source 101 generates heating medium (water in this example) at a specified temperature by performing heating or cooling.

　図２は本発明の実施の形態１による空気調和制御システム１を示す概略図である。熱源１０１で加熱又は冷却を行った熱媒体を室２１，２２の室内端末１０２にポンプ１０４で循環させる。弁１０６は、各室２１，２２の室内端末１０２及び熱源１０１の間を循環する熱媒体の流量を調整している。また、室内端末１０２は、各室２１，２２内の空間２と熱媒体とで熱交換している。空気調和制御装置１０９は、有線又は無線の通信経路１１０により、熱源１０１、弁１０６、室温センサ１０７、及びリモコン１０８と通信することができる。弁１０６からは弁開度検出手段１０６０を介して弁１０６の開閉状態を取得し、室温センサ１０７からは各室２１，２２の室温を取得し、リモコン１０８からは設定室温を取得する。空気調和制御装置１０９はこれらの情報を用いて、熱源１０１に対して生成する温水の目標温度を指令する。 FIG. 2 is a schematic view showing an air conditioning control system 1 according to Embodiment 1 of the present invention. The heat medium heated or cooled by the heat source 101 is circulated by the pump 104 to the indoor terminals 102 of the

chambers

21 and 22. The valve 106 regulates the flow rate of the heat medium circulating between the indoor terminal 102 of each of the

chambers

21 and 22 and the heat source 101. Further, the indoor terminal 102 exchanges heat between the space 2 in each of the

chambers

21 and 22 and the heat medium. The air conditioning control device 109 can communicate with the heat source 101, the valve 106, the room temperature sensor 107, and the remote control 108 through a wired or wireless communication path 110. The open / close state of the valve 106 is acquired from the valve 106 via the valve opening degree detecting means 1060, the room temperature of each of the

chambers

21 and 22 is acquired from the room temperature sensor 107, and the set room temperature is acquired from the remote controller 108. The air conditioning controller 109 uses these pieces of information to command the target temperature of the hot water to be generated to the heat source 101.

　図１及び図２では、室２１，２２が複数あることを説明するために、付番として２１及び２２を用いたが、これ以降は室２０で統一する。また、図において、同一の符号を付したものは、同一またはこれに相当するものであり、このことは明細書の全文、図面の全図において共通することである。さらに、明細書全文に表れている構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。 In FIG. 1 and FIG. 2, 21 and 22 are used as numbering in order to explain that there are a plurality of

chambers

21 and 22, but after that, the chambers 20 are unified. Further, in the drawings, the same reference numerals are assigned to the same or corresponding parts, which is common to the full text of the specification and all the drawings in the drawings. Furthermore, the form of the component which appears in the whole specification is only an illustration and is not limited to these descriptions.

　熱源１０１は自身に内蔵される空気調和制御装置１０９にしたがって温水の目標温度を満たすように温水を生成する。また、弁１０６は、有線又は無線の通信経路１１０により、室温センサ１０７、及びリモコン１０８と通信することができる。弁１０６は室温センサ１０７から取得した温度と、リモコン１０８から取得した設定室温とを用いて自律的に開閉状態を決定する。なお、この弁１０６には、開状態か閉状態かの二値しか取れないもの、全閉から全開までの間で段階的に開閉状態を変えられるもの、連続的に全閉から全開までの開閉状態を変えられるもの、の中のいずれを用いても構わない。 The heat source 101 generates hot water so as to meet the target temperature of the hot water according to the air conditioning control device 109 incorporated therein. The valve 106 can also communicate with the room temperature sensor 107 and the remote control 108 by a wired or wireless communication path 110. The valve 106 autonomously determines the open / close state using the temperature acquired from the room temperature sensor 107 and the set room temperature acquired from the remote control 108. The valve 106 can take only two values, open or closed, can change the open / close state stepwise from fully closed to fully open, open / close continuously from fully closed to fully open. Any of those which can change the state may be used.

　図３は本発明の実施の形態１による空気調和制御システム１の水・冷媒回路を示す概略図である。熱源１０１は、水冷媒熱交換器１０１１、膨張弁１０１２、圧縮機１０１３、空気冷媒熱交換器１０１４、熱源ファン１０１５、冷媒配管１０１６、出湯温度センサ１０１７から構成されている。水回路の作動流体である水はポンプ１０４により駆動される。水は水冷媒熱交換器１０１１で冷媒と熱交換をして温水となり、配管１０３の中をポンプ１０４及び弁１０６を経由して、各室内端末１０２に流れる。温水は室内端末１０２で室内に熱を放熱して、温度が下がる。冷えた温水は再び水冷媒熱交換器１０１１に流入する。 FIG. 3 is a schematic view showing a water / refrigerant circuit of the air conditioning control system 1 according to Embodiment 1 of the present invention. The heat source 101 includes a water refrigerant heat exchanger 1011, an expansion valve 1012, a compressor 1013, an air refrigerant heat exchanger 1014, a heat source fan 1015, a refrigerant pipe 1016, and a hot water temperature sensor 1017. Water, which is the working fluid of the water circuit, is driven by the pump 104. The water exchanges heat with the refrigerant in the water refrigerant heat exchanger 1011 and becomes hot water, and flows through the pipe 103 to each indoor terminal 102 via the pump 104 and the valve 106. The hot water dissipates heat to the room at the indoor terminal 102 to lower the temperature. The cooled hot water again flows into the water refrigerant heat exchanger 1011.

　一方、冷媒回路の作動流体である冷媒は圧縮機１０１３により駆動される。圧縮機１０１３によって昇温、昇圧した冷媒は、水冷媒熱交換器１０１１で水と熱交換を行い放熱する。冷媒は膨張弁１０１２で減圧され、低温になったうえで空気冷媒熱交換器１０１４に流入する。冷媒は空気冷媒熱交換器１０１４で熱源ファン１０１５による強制対流により空気と熱交換し昇温する。その後、冷媒は再び圧縮機１０１３に流入する。熱源１０１により生成される温水温度は出湯温度センサ１０１７で計測され、目標の出湯温度を達成するように、空気調和制御装置１０９によって圧縮機１０１３が制御される。 On the other hand, the refrigerant that is the working fluid of the refrigerant circuit is driven by the compressor 1013. The refrigerant heated and pressurized by the compressor 1013 exchanges heat with water in the water refrigerant heat exchanger 1011 and radiates heat. The refrigerant is decompressed by the expansion valve 1012 and flows into the air-refrigerant heat exchanger 1014 after becoming low temperature. The refrigerant exchanges heat with air by forced convection by the heat source fan 1015 in the air refrigerant heat exchanger 1014 to raise the temperature. Thereafter, the refrigerant flows into the compressor 1013 again. The hot water temperature generated by the heat source 101 is measured by a hot water outlet temperature sensor 1017, and the air conditioning controller 109 controls the compressor 1013 so as to achieve a target hot water outlet temperature.

　図４は本発明の実施の形態１による空気調和制御システム１の状況に応じた弁１０６の開閉動作について示した図である。ここでの説明では、開状態か閉状態かの二値しか取れない弁１０６を例にして説明するが、全閉から全開までの間で段階的に開閉状態を変えられる弁１０６でも、また連続的に全閉から全開までの開閉状態を変えられる弁１０６でも同じことである。（ａ）から（ｅ）に示す５個のグラフの横軸は時間である。また、縦軸は弁１０６状態を示しており、上側に線があるときは開状態、下側に線があるときは閉状態であることを意味している。 FIG. 4 is a diagram showing the opening and closing operation of the valve 106 according to the condition of the air conditioning control system 1 according to the first embodiment of the present invention. In the description herein, the valve 106 which can only take two values, open or closed, will be described as an example, but the valve 106 whose open / close state can be changed stepwise from fully closed to fully open is also continuous. The same applies to the valve 106 which can change the open / close state from the fully closed state to the fully open state. The horizontal axes of the five graphs shown in (a) to (e) are time. The vertical axis indicates the state of the valve 106, which means that the line is on the upper side in the open state, and the line on the lower side is in the closed state.

　中央に示している（ａ）基準の状態に対して、（ｂ）室２０の負荷が小さくなったり、（ｃ）温水温度が高くなったりする場合には、基準と同じ弁１０６の平均開度では室温が上昇してしまうため、弁１０６が開状態となる時間を短くして、室内端末１０２への供給熱量を小さくする。ここで、（ｂ）と（ｃ）とでグラフの波形が異なっている。（ａ）の基準に較べて弁１０６の開閉頻度が、（ｂ）の負荷が小さい場合では少なくなり、（ｃ）の温水温度が高い場合では多くなる。これは（ｃ）の弁１０６が開状態で温水温度が高い場合には、より早く室内端末１０２に熱が供給されるため、閉状態への移行が早くなるからである。 The average opening degree of the same valve 106 as the reference when (b) the load of the chamber 20 becomes smaller or (c) the hot water temperature becomes higher than (a) the reference state shown in the center Then, since the room temperature rises, the time for which the valve 106 is in the open state is shortened, and the amount of heat supplied to the indoor terminal 102 is reduced. Here, the waveforms of the graphs are different between (b) and (c). The open / close frequency of the valve 106 is smaller when the load of (b) is smaller than that of the standard of (a), and is larger when the temperature of hot water of (c) is higher. This is because when the hot water temperature is high with the valve 106 in (c) open, heat is supplied to the indoor terminal 102 more quickly, so the transition to the closed state is quicker.

　逆に、（ｄ）室２０の負荷が大きくなったり、（ｅ）温水温度が低くなったりする場合には、基準と同じ弁１０６の平均開度では室温を維持できないため、弁１０６は開状態の時間を長くして、室内端末１０２への供給熱量を大きくする。（ａ）の基準に較べて弁１０６の開閉頻度が、（ｄ）の負荷が大きい場合では多くなり、（ｃ）の温水温度が低い場合では少なくなる。（ｅ）の温水温度が低い場合には、室内端末１０２に熱を十分に供給するために、弁１０６の開状態が長くなっている。 Conversely, if (d) the load in the chamber 20 is large or (e) the hot water temperature is low, the room temperature can not be maintained at the same average opening degree of the valve 106, so the valve 106 is opened. The amount of heat supplied to the indoor terminal 102 is increased. The open / close frequency of the valve 106 is higher when the load of (d) is large compared to the standard of (a), and is lower when the temperature of hot water of (c) is lower. When the warm water temperature in (e) is low, the open state of the valve 106 is long in order to sufficiently supply the heat to the indoor terminal 102.

　このことから、同じ温水温度が各室内端末１０２に供給されている場合には、各室２０の弁１０６の開閉状態を比較することで、負荷の大きい室２０を特定でき（弁１０６が最も開状態の割合が高い）、ひいては最も高い温水温度を要求する室２０を特定することができる。各室内端末１０２の最大能力が異なっている場合には、必ずしも負荷の大小を特定することができないが、各室２０の弁１０６の開閉状態の内、最も開状態の割合が大きい弁１０６の室２０を特定することで、最も高い温水温度を要求する室２０を特定することができる。 From this, when the same hot water temperature is supplied to each indoor terminal 102, the chamber 20 with the largest load can be identified by comparing the open / close state of the valve 106 of each chamber 20 (the valve 106 is most open). It is possible to identify the room 20 that requires a high proportion of conditions) and thus the highest hot water temperature. When the maximum capacity of each indoor terminal 102 is different, it is not always possible to identify the magnitude of the load, but among the open and closed states of the valve 106 of each chamber 20, the chamber of the valve 106 having the largest open ratio By specifying 20, the room 20 that requires the highest warm water temperature can be specified.

　また、負荷を保った状態で温水温度を下げていくと、開閉を繰り返す回数が少なくなり、あるところで開状態を保ったまま、かつ、室温を維持している状態に到達する。この状態からさらに温水温度を下げると、室２０の負荷を処理することができなくなり、室温が低下していく。 In addition, when the temperature of the hot water is lowered while maintaining the load, the number of times to repeat opening and closing is reduced, and a state where the open state is maintained and the room temperature is maintained is reached. If the warm water temperature is further lowered from this state, the load of the chamber 20 can not be processed, and the room temperature decreases.

　本発明は、各室２０の弁１０６毎に所定の経過時間における弁１０６の平均開度を計算することで、最も高い温水温度を要求する室２０を特定し、当該弁１０６の平均開度が可能な限り大きくなり、かつ室温が維持されるような温水温度を出湯温度の目標値として熱源１０１に指令する。これによって、負荷を満足しつつ、最も低い温水温度となるので、省エネルギーとなる。 According to the present invention, by calculating the average opening degree of the valve 106 at a predetermined elapsed time for each valve 106 of each chamber 20, the chamber 20 requiring the highest hot water temperature is specified, and the average opening degree of the valve 106 is The hot water temperature which becomes as large as possible and the room temperature is maintained is commanded to the heat source 101 as a target value of the outlet temperature. As a result, since the lowest hot water temperature is obtained while satisfying the load, energy can be saved.

　ここで、弁１０６の平均開度について説明する。まず、開閉状態に開状態と閉状態との二値しか選択できない弁１０６を用いる場合は、開状態を開度１００％、閉状態を開度０％とした開度を与え、所定の経過時間における平均開度である。次に、開閉状態に段階的な値を選択できる弁１０６を用いる場合は、開閉状態から開度を計算できる方法を用いて計算した値、開閉状態の各段階に対応する開度の値等を用いて求めた所定の経過時間における平均開度である。最後に、開閉状態に連続的な値を選択できる弁１０６を用いる場合は、開閉状態から開度を計算できる方法を用いて計算した値、開閉状態を段階に区切ったときの各段階に対応した開度の値等を用いて求めた所定の経過時間における平均開度である。 Here, the average opening degree of the valve 106 will be described. First, in the case of using the valve 106 which can select only two values of the open state and the closed state in the open / close state, the open state is set to 100% opening, and the closed state is set to 0%. Is the average opening degree of Next, when using the valve 106 capable of selecting a stepwise value for the open / close state, the value calculated using a method capable of calculating the opening degree from the open / close state, the value of the opening degree corresponding to each step of the open / close state, etc. It is an average opening degree in a predetermined elapsed time determined using. Finally, when using the valve 106 capable of selecting continuous values for the open / close state, values calculated using a method capable of calculating the opening degree from the open / close state, corresponding to each stage when the open / close state is divided into stages It is an average opening degree in the predetermined elapsed time calculated | required using the value etc. of opening degree.

　また、所定の経過時間としては、例えば、１０秒、３０秒といった空気調和制御装置１０９による演算周期に基づくものでもよいし、例えば、１０分、６０分といった比較的長めの時間でもよい。さらに、例えば、空気調和制御システム１の立ち上げ直後と、動作が立ち上げ直後と比較して相対的に安定しているときとで、弁１０６の平均開度を求める祭の所定の経過時間を変更してもよい。 The predetermined elapsed time may be, for example, based on a calculation cycle by the air conditioning control device 109 such as 10 seconds or 30 seconds, or may be a relatively long time such as 10 minutes or 60 minutes. Furthermore, for example, the predetermined elapsed time of the festival for obtaining the average opening degree of the valve 106 immediately after the start of the air conditioning control system 1 and when the operation is relatively stable compared with that immediately after the start You may change it.

　図５は本発明の実施の形態１による空気調和制御装置１０９の構成を示した図である。空気調和制御装置１０９は、室選択部３２と制御部３３と記憶媒体である記憶部３１とを備える。室選択部３２及び制御部３３は、演算処理装置であるプロセッサで構成されている。室選択部３２は、平均開度計算部３２１と比較部３２２と偏差計算部３２３とを備え、制御部３３は、制御演算部３３１と指令部３３２とを備える。図中でｉと表記のあるものは複数ある全ての要素を表す。例えば、弁ｉは各室２０毎にある全ての弁１０６を意味している。 FIG. 5 is a diagram showing the configuration of the air conditioning control device 109 according to Embodiment 1 of the present invention. The air conditioning control device 109 includes a chamber selection unit 32, a control unit 33, and a storage unit 31 which is a storage medium. The room selection unit 32 and the control unit 33 are configured by a processor that is an arithmetic processing unit. The room selection unit 32 includes an average opening degree calculation unit 321, a comparison unit 322, and a deviation calculation unit 323. The control unit 33 includes a control calculation unit 331 and a command unit 332. In the drawing, the one represented by i represents all the plural elements. For example, valve i means all the valves 106 present in each chamber 20.

　自律的に開閉する弁ｉの開閉状態を弁開度検出手段１０６０を介して制御部３３は検知する。より具体的には、弁ｉの開閉状態は弁開度検出手段１０６０により検出され、弁ｉの開閉状態は時間履歴として所定の経過時間分を記憶部３１に記憶される。平均開度計算部３２１は、弁ｉの開閉状態の時間履歴から所定の経過時間における弁ｉの平均開度を計算し、弁ｉの平均開度として記憶部３１に記憶する。比較部３２２は弁１０６の平均開度を各室２０間で比較し、最も平均開度が大きい室ｋと、室ｋの弁ｋの平均開度ｋとを記憶部３１に記憶する。偏差計算部３２３は、平均開度が最も大きい室ｋの情報を用いて、リモコン１０８に付属する入力部１０８１から得た設定室温ｉと、室温センサ１０７から得た室温ｉとから室ｋの設定室温ｋ及び室温ｋを抽出して、平均開度が最も大きい室ｋの設定室温ｋと室温ｋとの偏差を計算する。このように、室選択部３２は、所定の経過時間における各室２０の弁１０６の平均開度の内、最も平均開度が大きくなる弁ｋの室ｋを選択することになる。なお、添え字ｋは、全文を通じて最も平均開度が大きい室ｋに関するものであることを意味している。 The control unit 33 detects the open / close state of the valve i that opens and closes autonomously via the valve opening degree detection means 1060. More specifically, the open / close state of the valve i is detected by the valve opening degree detection means 1060, and the open / close state of the valve i is stored in the storage unit 31 for a predetermined elapsed time as a time history. The average opening degree calculation unit 321 calculates the average opening degree of the valve i at a predetermined elapsed time from the time history of the open / close state of the valve i, and stores the average opening degree in the storage unit 31 as the average opening degree of the valve i. The comparison unit 322 compares the average opening degree of the valve 106 among the chambers 20 and stores the chamber k having the largest average opening degree and the average opening degree k of the valve k of the chamber k in the storage unit 31. Deviation calculation unit 323 sets a room k from a set room temperature i obtained from input unit 1081 attached to remote control 108 and a room temperature i obtained from room temperature sensor 107 using information on room k having the largest average opening. The room temperature k and the room temperature k are extracted, and the deviation between the set room temperature k and the room temperature k of the room k having the largest average opening is calculated. As described above, the chamber selecting unit 32 selects the chamber k of the valve k having the largest average opening among the average openings of the valves 106 of the respective chambers 20 at a predetermined elapsed time. In addition, the suffix k means that it relates to the room k with the largest average opening degree throughout the whole text.

　制御演算部３３１は、設定室温ｋと室温ｋとの偏差ｋと、弁ｋの平均開度ｋと、前回の積分項と、前回の出湯温度の目標値とを用いて制御演算を行い、積分項と、出湯温度の目標値とを記憶部３１に記憶する。記憶部３１に記憶された積分項及び出湯温度の目標値は、次の制御ステップにおいて前回値として用いられる。出湯温度の目標値は、制御部３３の指令部３３２から熱源１０１に指令され、熱源１０１は出湯温度の目標値に従って温水を生成する。なお、ＰＩ制御を用いて平均開度が大きくなるように出湯温度を低くしたが、本発明は、制御方式をＰＩ制御に限定するものではない。制御部３３が室ｋの弁ｋの平均開度が他の室２０の弁１０６の平均開度以上で、かつ室ｋの室温が設定室温に近づくように熱媒体の温度を熱源１０１に指令する制御であれば、どのような制御方式でもよい。 The control calculation unit 331 performs control calculation using the deviation k between the set room temperature k and the room temperature k, the average opening degree k of the valve k, the previous integral term, and the previous target value of the outlet water temperature A term and the target value of the outlet temperature are stored in the storage unit 31. The integral term and the target value of the outlet temperature stored in the storage unit 31 are used as the previous value in the next control step. The target value of the outlet temperature is commanded from the instruction unit 332 of the control unit 33 to the heat source 101, and the heat source 101 generates hot water according to the target value of the outlet temperature. Although the tapping temperature is lowered to increase the average opening degree using PI control, the present invention does not limit the control method to PI control. The control unit 33 instructs the heat source 101 to control the temperature of the heat medium so that the average opening degree of the valve k of the chamber k is equal to or higher than the average opening degree of the valves 106 of the other chambers 20 and the room temperature of the chamber k approaches the set room temperature. Any control method may be used as long as it is control.

　図６は本発明の実施の形態１による空気調和制御装置１０９のフローを示した図である。空気調和制御装置１０９は、式（１）のように、はじめに各室ｉについて設定温度Ｔ_sから室温Ｔ_rを引いて偏差ΔＴを計算する（ＳＴ１０１）。 FIG. 6 is a diagram showing the flow of the air conditioning control device 109 according to Embodiment 1 of the present invention. The air conditioning control device 109 first subtracts the room temperature T _r from the set temperature T _s for each chamber i to calculate the deviation ΔT as in equation (1) (ST 101).

　次に、空気調和制御装置１０９は過去の所定時間内での各室ｉの弁ｉの平均開度を計算する（ＳＴ１０２）。各室ｉの平均開度を計算したら、各室ｉの中で最も平均開度が大きかった室ｋを制御の対象として選択する（ＳＴ１０３）。 Next, the air conditioning control device 109 calculates the average opening degree of the valve i of each chamber i within a predetermined time in the past (ST 102). After calculating the average opening degree of each room i, a room k having the largest average opening degree among the respective rooms i is selected as a control target (ST103).

　この時、最も平均開度が大きかった室ｋが複数存在した場合には（ＳＴ１０４）、これらの室ｋのうち、最も偏差ΔＴが大きい室ｋを制御の対象として選択する（ＳＴ１０５）。 At this time, if there are a plurality of chambers k having the largest average opening (ST104), the chamber k having the largest deviation ΔT is selected as a control target (ST105).

　空気調和制御装置１０９は選択された室ｋの偏差ΔＴを用いてＰＩ制御の演算値を計算する。比例項ｕ_pは偏差ΔＴに比例ゲインＫ_pを乗じることで計算する（式２）（ＳＴ１０６）。 The air conditioning controller 109 calculates the calculated value of PI control using the deviation ΔT of the selected chamber k. The proportional term u _p is calculated by multiplying the deviation ΔT by the proportional gain K _p (equation 2) (ST 106).

　積分項の今回時間の加算値Δｕ_iは、偏差ΔＴに積分ゲインＫ_iと積分時間ｔ_iを乗じて計算する（式３）（ＳＴ１０７）。 This time of the sum Delta] u _i of the integral term is calculated by multiplying the integral gain K _i and integration time t _i to the deviation [Delta] T (Equation 3) (ST107).

　通常のＰＩ制御の比例項、積分項に加えて、弁ｋの全開値である最大開度φｍａｘから所定の経過時間における弁ｋの平均開度φ_avgを引いて計算した平均開度の偏差Δφ_avgを計算する（式４）（ＳＴ１０８）。 Deviation of the average opening degree Δφ calculated by subtracting the average opening degree φ _avg of the valve k at a predetermined elapsed time from the maximum opening degree φmax which is the full opening value of the valve k, in addition to proportional term and integral term of normal PI control Calculate _avg (Equation 4) (ST108).

　平均開度の偏差Δφ_avgに補正値の係数Ｋ_Nをかけた弁ｋの閉状態にある補正値ｕ_Nを計算する（式５）（ＳＴ１０９）。 A correction value u _N in the closed state of the valve k is calculated by multiplying the deviation Δφ _{avg of the} average opening degree by the correction value coefficient K _N (Equation 5) (ST 109).

　積分項ｕ_iは、加算値Δｕ_iから補正値ｕ_Nを減算し、前回時間の積分項ｕ_i’を和算して計算する（式６）（ＳＴ１１０）。 Integral term u _i subtracts the correction value u _N from the addition value Delta] u _i, is calculated by summing the integral term u _i 'of the previous time (equation 6) (ST110).

　出湯温度の目標値の修正量（変化量）ΔＴ_soutは、比例項ｕ_p、積分項ｕ_iを足し合わせて計算する（式７）（ＳＴ１１１）。 The correction amount (variation amount) _ΔTsout of the target value of the tapping temperature is calculated by adding the proportional term u _p and the integral term u _i (Equation 7) (ST 111).

　出湯温度の目標値Ｔ_soutは、前回時間の出湯温度の目標値Ｔ_sout’に、目標値の修正量（変化量）ΔＴ_soutを加算して計算する（式８）（ＳＴ１１２）。 The target value _Tsout of the outlet temperature is calculated by adding the correction value (amount of change) _ΔTsout of the target value to the target value _Tsout 'of the outlet temperature of the previous time (Equation 8) (ST112).

　図７は本発明の実施の形態１による空気調和制御装置１０９が行う制御を表したブロック線図である。図中の点線で囲まれた領域は、空気調和制御装置１０９の制御演算部３３１に該当する。空気調和制御装置１０９は、最も平均開度が大きかった室ｋを制御の対象として選択した後、室ｋの弁ｋの平均開度の偏差Δφ_avg、目標室温Ｔ_s、室温Ｔ_rを用いて出湯温度の目標値を計算する。熱源１０１は出湯温度の目標値の変化量ΔＴ_soutを受けて、前回時間の出湯温度の目標値に変化量を足し合わせることで今回時間の出湯温度の目標値を計算する。熱源１０１は出湯温度Ｔ_woutがＴ_soutと一致するように温水を生成する。温水は室内端末１０２で室２０に熱Ｑを放熱し、室温Ｔｒが変化する。 FIG. 7 is a block diagram showing control performed by the air conditioning control device 109 according to Embodiment 1 of the present invention. A region surrounded by a dotted line in the drawing corresponds to the control calculation unit 331 of the air conditioning control device 109. The air conditioning controller 109 selects the chamber k having the largest average opening degree as a control target, and then uses the deviation Δφ _avg of the average opening degree of the valve k of the chamber k _{, the} target room temperature T _s , and the room temperature T _r Calculate the target value of the outlet temperature. The heat source 101 receives the change amount _ΔTsout of the target value of the outlet temperature, and calculates the target value of the outlet temperature of the current time by adding the change amount to the target value of the outlet temperature of the previous time. The heat source 101 generates hot water so that the outlet temperature _Twout matches _Tsout . The hot water dissipates the heat Q to the room 20 at the indoor terminal 102, and the room temperature Tr changes.

　このように出湯温度の目標値を決めると、室温が低い状態から暖房が運転を開始した場合には、室温が設定室温に近づくまでの間は、弁ｋが開閉することがないため、補正値が０となる。出湯温度の目標値は通常のＰＩ制御で制御され、出湯温度の目標値が上昇していくように計算される。 Thus, if the target value of the outlet temperature is determined, when heating starts from a low temperature state, the valve k does not open or close until the room temperature approaches the set room temperature, so the correction value Becomes 0. The target value of the outlet temperature is controlled by the normal PI control, and is calculated so that the target value of the outlet temperature rises.

　室温が設定室温に到達した後は、弁ｋが開閉を繰り返しながら室温を維持する。このとき、比例項が０となり、積分項はそれまでの室温の履歴に応じた値をとる。通常のＰＩ制御では、弁ｋの開閉に基づき室温は設定室温付近で上下するため、時間平均的にみると、積分項はその値を維持する。このため、目標の出湯温度はその状態から下がらない。 After the room temperature reaches the set room temperature, the valve k maintains the room temperature while repeating opening and closing. At this time, the proportional term becomes 0, and the integral term takes a value according to the history of the room temperature up to that point. In normal PI control, the room temperature rises and falls around the set room temperature based on the opening and closing of the valve k, so the integral term maintains its value in time average. For this reason, the target tapping temperature does not fall from that state.

　一方、本発明では、弁ｋの開閉があるかぎり、平均開度の偏差が０とならないため、積分項の値が減算される。このため目標の出湯温度は、弁ｋの平均開度の偏差が０となるように、すなわち弁ｋの平均開度が最大開度に近づくように変化する。 On the other hand, in the present invention, as long as the valve k is opened or closed, the deviation of the average opening does not become 0, so the value of the integral term is subtracted. Therefore, the target tapping temperature changes so that the deviation of the average opening degree of the valve k becomes 0, that is, the average opening degree of the valve k approaches the maximum opening degree.

　弁ｋの平均開度の偏差が０になると、室温が設定室温に維持されている限り、目標の出湯温度が変化することはない。すなわち、室温を設定室温に保つため、過剰供給でもなく供給不足でもない出湯温度で空気調和制御システム１が運転する。 When the deviation of the average opening degree of the valve k becomes 0, the target tapping temperature does not change as long as the room temperature is maintained at the set room temperature. That is, in order to keep the room temperature at the set room temperature, the air conditioning control system 1 operates at a hot water temperature which is neither excessive supply nor insufficient supply.

　負荷の変化及び設定室温の変更にともなって、室温が設定室温より低くなった場合は、暖房開始時と同様にＰＩ制御に基づき出湯温度の目標値が上昇していくように計算される。 If the room temperature becomes lower than the set room temperature as the load changes and the set room temperature changes, the target value of the outlet water temperature is calculated to increase based on the PI control as at the start of heating.

　室温が設定室温より高くなった場合は、再び、弁１０６の開閉に基づき室温が設定室温に維持される。このとき、弁ｋの平均開度の偏差が０より大きい値になるため、積分項の値が減算される。このため、目標の出湯温度は、平均開度の偏差が０に近づくように、すなわち、弁ｋの開度が前回に近づくように変化する。 If the room temperature becomes higher than the set room temperature, the room temperature is maintained at the set room temperature again based on the opening and closing of the valve 106. At this time, since the deviation of the average opening degree of the valve k becomes a value larger than 0, the value of the integral term is subtracted. For this reason, the target outlet hot water temperature changes so that the deviation of the average opening approaches zero, that is, the opening of the valve k approaches the previous one.

　制御対象となった室ｋ以外の室２０では、平均開度の偏差が０に近い場合は、制御対象の室ｋと同様に温水温度が負荷を満足しつつ、最も低い温度を実現している。もし、設定室温より室温が低い室２０が存在する場合は、制御対象がその室２０（新たな室ｋ）に移り、そのような状況が解消される。弁ｋの平均開度の偏差が０より大きい場合、温水温度は室ｋで最低限必要な温度よりも高い状態であるといえる。 In the chambers 20 other than the chamber k which is the control target, when the deviation of the average opening is close to 0, the warm water temperature achieves the lowest temperature while satisfying the load as in the case of the chamber k to be controlled . If there is a chamber 20 whose room temperature is lower than the set room temperature, the control target moves to the chamber 20 (new chamber k), and such a situation is resolved. If the deviation of the average opening degree of the valve k is larger than 0, it can be said that the warm water temperature is higher than the minimum temperature required in the room k.

　しかしながら、出湯温度を下げると制御対象となる室ｋの室温が維持できなくなるため、このような変更は許容されない。このように、少なくとも一つの室ｋでは、弁１０６の平均開度の偏差が０に近い値となり、かつ室温が維持されるような温水温度の出湯温度が目標値として熱源１０１に指令され、負荷を満足しつつ、最も低い温水温度を実現する。 However, such a change is not permitted because the room temperature of the chamber k to be controlled can not be maintained if the tapping temperature is lowered. Thus, in at least one chamber k, the deviation of the average opening degree of the valve 106 becomes a value close to 0, and the hot water outlet temperature of the hot water temperature is maintained as a target value so that the room temperature is maintained. Achieve the lowest hot water temperature while satisfying the

　以上、熱媒体に水、熱源１０１にヒートポンプを用いた暖房システムを例に説明を行ったが、本発明の適用はこれに限定されるものではない。暖房だけでなく冷房システムにも適用は可能である。また、熱媒体としては水以外にもブライン、冷媒等を用いることができる。熱源１０１には電気ボイラー、ガスボイラー、チラー等を用いることができる。 As mentioned above, although the heating system which used water as a heat carrier and heat pump for the heat source 101 was demonstrated to the example, application of this invention is not limited to this. Application is possible not only to heating but also to cooling systems. In addition to water, brine, a refrigerant or the like can be used as the heat medium. As the heat source 101, an electric boiler, a gas boiler, a chiller or the like can be used.

　冷房の場合は、式（６）のように補正値ｕ_Nを減算するのではなく、式（９）のように補正値ｕ_Nを和算すればよい。このように読み替えることで、弁ｋの平均開度の偏差が大きいときは弁ｋの平均開度の偏差が０に近づくように冷水温度が上昇する。 For cooling, instead of subtracting the correction value u _N as in Equation (6) may be summing the correction value u _N as in Equation (9). Thus, when the deviation of the average opening degree of the valve k is large, the cold water temperature rises so that the deviation of the average opening degree of the valve k approaches 0.

　ここでは、熱媒体の温度は、室ｋの室温、設定室温及び弁の平均開度を用いてＰＩ制御で求めている。もっとも、制御方式はＰＩ制御に限られるものではなく、制御部３３が室ｋを選択後は弁ｋの平均開度が小さいほど、暖房では低くなるように、冷房では高くなるように熱媒体の温度を熱源１０１に指令するのであれば、制御方式は限定されない。 Here, the temperature of the heat medium is obtained by PI control using the room temperature of the room k, the set room temperature, and the average opening degree of the valve. However, the control method is not limited to PI control, and after the control unit 33 selects the chamber k, the smaller the average opening degree of the valve k, the lower the value in heating, and the higher the temperature of the heat medium is in cooling. If the temperature is commanded to the heat source 101, the control method is not limited.

　また、使用する空間２は住宅を例に説明を行ったが、本発明の適用はこれに限定されるものではない。例えば、学校等の公共施設、商業施設、病院、オフィス、食品又は薬品を保管する物品の倉庫等の空気調和制御システム１に対しても適用できる。 Moreover, although the space 2 to be used was demonstrated taking a house as an example, application of this invention is not limited to this. For example, the present invention is also applicable to an air conditioning control system 1 such as a public facility such as a school, a commercial facility, a hospital, an office, or a warehouse of articles for storing food or medicine.

　すべての室２０の熱需要を満たすような、暖房時では最も低い、冷房時では最も高い、熱媒体の温度を設定したときに、少なくとも一つの室内端末１０２で弁１０６の平均開度が可能な限り大きくなることに着目し、各室２０の室温を設定室温に保ちつつ、少なくとも一つの室内端末１０２で弁１０６の平均開度が可能な限り大きくなるような熱媒体の温度を決定し、従来よりも省エネルギーに空気調和制御システム１を運転することができる。 When setting the temperature of the heat medium which is the lowest at heating and the highest at cooling, which satisfies the heat demand of all the rooms 20, an average opening degree of the valve 106 is possible in at least one indoor terminal 102 Focusing on becoming as large as possible, the temperature of the heat medium is determined so that the average opening degree of the valve 106 becomes as large as possible in at least one indoor terminal 102 while keeping the room temperature of each chamber 20 at the set room temperature The air conditioning control system 1 can be operated more energy-saving.

　各室の設定室温を設定する入力部と、各室の室温を検知する室温検知部と、指令された温度の熱媒体を生成する熱源と、各室内空間と熱媒体とで熱交換する各室の室内端末及び熱源の間を循環する熱媒体の流量を調整する各室の弁と、所定の経過時間における各室の弁の平均開度の内、最も平均開度が大きくなる当該弁の室を選択する室選択部と、該室の弁の平均開度が他の室の弁の平均開度以上で、かつ該室の室温が設定室温に近づくように熱媒体の温度を熱源に指令する制御部とを備えたので、省エネルギーとなるように熱媒体の温度を決定することができる。 An input unit for setting the set room temperature of each room, a room temperature detection unit for detecting the room temperature of each room, a heat source for generating a heat medium of the instructed temperature, and each room for heat exchange between each indoor space and the heat medium Of the average opening degree of the valves of each chamber for adjusting the flow rate of the heat medium circulating between the indoor terminal and the heat source and the average opening degree of the valves of each chamber during a predetermined elapsed time The temperature of the heat medium is commanded to the heat source so that the average opening degree of the chamber selector selecting the chamber and the valve of the chamber is equal to or higher than the average opening of the valve of the other chamber and the room temperature of the chamber approaches the set room temperature. Since the control unit is provided, the temperature of the heat medium can be determined so as to save energy.

　また、各室の設定室温を設定する入力工程と、各室の室温を検知する室温検知工程と、熱源が指令された温度の熱媒体を生成する生成工程と、各室の弁が各室内空間と熱媒体とで熱交換する各室の室内端末及び熱源の間を循環する熱媒体の流量を調整する調整工程と、所定の経過時間における各室の弁の平均開度の内、最も平均開度が大きくなる当該弁の室を選択する室選択工程と、該室の弁の平均開度が他の室の弁の平均開度以上で、かつ該室の室温が設定室温に近づくように熱媒体の温度を熱源に指令する制御工程とを備えたので、省エネルギーとなるように熱媒体の温度を決定する空気調和制御方法となる。 In addition, an input process for setting the set room temperature of each room, a room temperature detection process for detecting the room temperature of each room, a generation process for generating a heat medium of the temperature to which the heat source is instructed, and valves of each room Adjustment step of adjusting the flow rate of the heat medium circulating between the indoor end of each chamber that exchanges heat with the heat medium and the heat source, and the average opening degree of the average opening degree of the valve of each room at a predetermined elapsed time Chamber selection step of selecting the chamber of the valve where the degree increases, and the average opening degree of the chamber valve is equal to or higher than the average opening degree of the valve of the other chamber and the room temperature of the chamber approaches the set room temperature Since the control step of commanding the temperature of the medium to the heat source is provided, it becomes an air conditioning control method of determining the temperature of the heat medium so as to save energy.

　実施の形態２．
　実施の形態１では弁１０６は、自律的に開閉を行うものであったが、実施の形態２の弁１０６は、外部（例えば、空気調和制御装置１０９）から開閉状態を制御できる点に構成上の相違点がある。外部から弁１０６の開閉状態を制御できるため、最大偏差の室ｋが一つに決まると、外部からその室ｋの弁ｋを全開にするように指令する。弁１０６の開閉状態を外部から制御できる場合には、少なくとも一つの室ｋで弁ｋを開状態、又は開度を１００％にして、出湯温度の目標値を制御することになる。 Second Embodiment
In the first embodiment, the valve 106 autonomously opens and closes. However, the valve 106 of the second embodiment is configured in that the open / close state can be controlled from the outside (for example, the air conditioning control device 109). There are differences in Since the open / close state of the valve 106 can be controlled from the outside, when the room k of the maximum deviation is determined to one, the outside is commanded to fully open the valve k of the room k. When the open / close state of the valve 106 can be controlled from the outside, the valve k is opened in at least one chamber k or the opening degree is set to 100% to control the target value of the outlet temperature.

　実施の形態１では開閉状態に開状態と閉状態との二値しか選択できない弁１０６を用いる場合について説明したが、実施の形態２では開閉状態が連続的な弁１０６を用いて説明する。実施の形態１と同様に弁１０６は、開状態か閉状態の二値となる弁１０６でも、開閉状態が段階的である弁１０６でもよい。 In the first embodiment, the case where the valve 106 which can select only two values of the open state and the closed state is used as the open / close state is described, but in the second embodiment, the open / close state will be described using the continuous valve 106. As in the first embodiment, the valve 106 may be either the valve 106 having two values of the open state and the closed state, or the valve 106 having the open / close state stepwise.

　図８は本発明の実施の形態２による空気調和制御システム１の状況に応じた弁１０６の開度について示した図である。（ａ）から（ｅ）に示す５個のグラフの横軸は時間である。また、縦軸は弁１０６の開度であり、全開相当する開度１００％を点線で示している。（ａ）基準に対して負荷が小さくなった場合（ｂ）、及び（ａ）基準に対して温水温度が高くなった場合（ｃ）は、室内端末１０２からの放熱量を小さくするため、弁１０６の開度が小さくなる。また、（ａ）基準に対して負荷が大きくなった場合（ｄ）、及び（ａ）基準に対して温水温度が低くなった場合は、室内端末１０２からの放熱量を大きくするため、弁１０６の開度が大きくなる。このような空気調和制御システム１にあっては、少なくとも一つの室２０で、弁１０６の開度を１００％に制御した時に室温を維持できるような温水温度を実現することが目的となる。 FIG. 8 is a view showing the opening degree of the valve 106 according to the condition of the air conditioning control system 1 according to the second embodiment of the present invention. The horizontal axes of the five graphs shown in (a) to (e) are time. Further, the vertical axis represents the opening degree of the valve 106, and the opening degree 100% corresponding to full opening is indicated by a dotted line. (A) When the load decreases with respect to the standard (b), and (a) when the hot water temperature rises with respect to the standard (c), the amount of heat released from the indoor terminal 102 is reduced. The opening degree of 106 becomes smaller. In addition, when the load increases with respect to the (a) standard (d) and when the warm water temperature decreases with respect to the (a) standard, the valve 106 is operated to increase the amount of heat released from the indoor terminal 102. Opening of the In such an air conditioning control system 1, it is an object to realize a warm water temperature capable of maintaining room temperature when the opening degree of the valve 106 is controlled to 100% in at least one chamber 20.

　図９は本発明の実施の形態２による空気調和制御装置１０９の構成を示した図である。図５との差異を説明すると、まず、指令部３３２は平均開度が最大の室ｋの弁ｋに対して全開の指令を行う。その他の室２０の弁１０６は自律的に開度を決めても良いし、室温を設定室温に保つように開度を決定し指令部３３２から制御を行ってもよい。このため、平均開度が最大の室ｋが一度選択されると、以降、該室ｋは、弁１０６の平均開度が最大の室ｋであり続ける。なお、弁１０６は指令部３３２によって開閉状態が制御されるため弁開度検出手段１０６０を省略することができる。もっとも、実施の形態１と同様に、空気調和制御装置１０９（平均開度計算部３２１）は弁開度検出手段１０６０によって弁１０６の開閉状態を取得してもよい。 FIG. 9 is a diagram showing the configuration of the air conditioning control device 109 according to Embodiment 2 of the present invention. First, the command unit 332 issues a full open command to the valve k of the chamber k having the largest average opening degree. The valve 106 of the other chamber 20 may determine the degree of opening autonomously, or the degree of opening may be determined so as to keep the room temperature at the set room temperature, and control may be performed from the command unit 332. Therefore, once the chamber k having the largest average opening degree is selected, the chamber k continues to be the chamber k having the largest average opening degree of the valve 106 thereafter. Note that the valve opening degree detection means 1060 can be omitted because the valve 106 is controlled by the command unit 332 to open and close. Of course, as in the first embodiment, the air conditioning control device 109 (average opening degree calculation unit 321) may obtain the open / close state of the valve 106 by means of the valve opening degree detection unit 1060.

　ここで、比較部３２２において、弁１０６の平均開度が最大の室ｋを比較したときに、最大の室ｋが複数選ばれる場合がある。例えば、はじめに平均開度が最大の室ｋに選択された以外の室２０で室温が低下し、室温を回復するために弁１０６が開いている場合がある。このとき、比較部３２２は弁１０６の平均開度が最大である各室ｋについて、設定温度と室温との偏差を計算し、偏差が最大となる室ｋを平均開度が最大の室ｋとして新たに選択する。このようにすることで、最も高い温水温度を要求する部屋（室２０）が切り替わっても、はじめに平均開度が最大の室ｋに選択された室２０が弁１０６の開度を全開に選ばれ続けることを防ぐ。 Here, when the comparing unit 322 compares the chambers k having the largest average opening degree of the valve 106, a plurality of the largest chambers k may be selected. For example, the room temperature may drop in the room 20 other than the room k initially selected as the room k having the largest average opening, and the valve 106 may be opened to recover the room temperature. At this time, the comparison unit 322 calculates the deviation between the set temperature and the room temperature for each chamber k having the largest average opening degree of the valve 106, and sets the chamber k having the largest deviation as the chamber k having the largest average opening degree. Make a new choice. In this way, even if the room (room 20) requiring the highest hot water temperature is switched, the room 20 selected as the room k having the largest average opening is selected to fully open the valve 106 first. I will prevent you from continuing.

　図１０は本発明の実施の形態２による空気調和制御装置１０９のフローを示した図である。ＳＴ２０６では、選択した室ｋの弁ｋを全開にする。より具体的には、弁ｉは制御部３３からの開度指令で開度を決定し、制御部３３は室選択部３２が室ｋを選択したときには、室ｋの弁ｋを全開とする指令を行う。なお、ＳＴ２０１はＳＴ１０１と、ＳＴ２０２はＳＴ１０２と、ＳＴ２０３はＳＴ１０３と、ＳＴ２０４はＳＴ１０４と、ＳＴ２０５はＳＴ１０５と、ＳＴ２０７はＳＴ１０６と、ＳＴ２０８はＳＴ１０７と、ＳＴ２０９はＳＴ１１１と、ＳＴ２１０はＳＴ１１２と、それぞれ実質的に同じステップのため詳細な説明は省略する。 FIG. 10 is a diagram showing a flow of the air conditioning control device 109 according to the second embodiment of the present invention. At ST206, the valve k of the selected chamber k is fully opened. More specifically, the valve i determines the opening degree by the opening degree command from the control unit 33, and the control unit 33 instructs the valve k of the chamber k to be fully open when the chamber selecting unit 32 selects the chamber k. I do. Note that ST201 is substantially ST101, ST202 is ST102, ST203 is ST103, ST204 is ST104, ST205 is ST105, ST207 is ST106, ST208 is ST107, ST209 is ST111, and ST210 is ST112, respectively. The detailed description is omitted because the steps are the same.

　空気調和制御装置１０９は、まず、各室２０の偏差を設定室温と室温との差として計算する。次に、所定の経過時間内での各室２０の弁１０６の平均開度を計算し、平均開度が最大の室ｋを選択する。平均開度が最大の室ｋが複数選択された場合には最大偏差の部屋を選択する。選択した室ｋの弁ｋには、指令部３３２が全開にするように指令を出す。次に、出湯温度を決定するが、選択した室ｋの室温が設定室温に近づくように出湯温度を変化させる。例えば、室温が低い場合は出湯温度を上げるように変化させ、室温が高い場合は出湯温度を下げるように変化させる。例として、ＰＩ制御を用いる場合は、偏差に比例ゲインをかけて比例項を計算し、偏差、積分ゲイン、及び積分時間の積である今回時間の積分値と、前回時間の積分項の和とをとって積分項を計算し、比例項と積分項との和を取ることで出湯温度の目標値の変化量を計算する。最後に、指令部３３２が前回時間の出湯温度の目標値と目標値の変化量（修正量）との和をとって出湯温度の目標値を計算して、熱源１０１に指令する。 The air conditioning control device 109 first calculates the deviation of each chamber 20 as the difference between the set room temperature and the room temperature. Next, the average opening degree of the valve 106 of each chamber 20 within a predetermined elapsed time is calculated, and the chamber k having the largest average opening degree is selected. When a plurality of rooms k having the largest average opening degree are selected, the room with the largest deviation is selected. A command is issued to the valve k of the selected chamber k so that the command unit 332 is fully open. Next, the outlet temperature is determined, but the outlet temperature is changed so that the room temperature of the selected room k approaches the set room temperature. For example, when the room temperature is low, the temperature is increased to increase the outlet temperature, and when the room temperature is high, the temperature is changed to decrease the outlet temperature. As an example, when using PI control, the proportional term is multiplied by the deviation to calculate the proportional term, and the integrated value of the current time which is the product of the deviation, the integral gain, and the integral time and the sum of the integral term of the previous time The integral term is calculated, and the change amount of the target value of the tapping temperature is calculated by taking the sum of the proportional term and the integral term. Finally, the command unit 332 calculates the target value of the outlet temperature by taking the sum of the target value of the outlet temperature at the previous time and the change amount (correction amount) of the target value, and instructs the heat source 101.

　図１１は本発明の実施の形態２による空気調和制御装置１０９が行う制御を表したブロック線図である。図中の点線で囲まれた箇所が空気調和制御装置１０９の制御演算部３３１に相当する。熱媒体の温度は、室ｋの室温、設定室温及び弁の平均開度を用いてＰＩ制御で求めている。もっとも、制御方式はＰＩ制御に限られるものではなく、制御部３３が室ｋを選択後は弁ｋの平均開度が小さいほど、暖房では低くなるように、冷房では高くなるように熱媒体の温度を熱源１０１に指令するのであれば、制御方式は限定されない。図７との差異を説明すると、弁ｋの平均開度を制御に用いるための入力部分が取り除かれている。 FIG. 11 is a block diagram showing control performed by the air conditioning control device 109 according to Embodiment 2 of the present invention. A portion surrounded by a dotted line in the drawing corresponds to the control calculation unit 331 of the air conditioning control device 109. The temperature of the heat medium is obtained by PI control using the room temperature of the room k, the set room temperature, and the average opening degree of the valve. However, the control method is not limited to PI control, and after the control unit 33 selects the chamber k, the smaller the average opening degree of the valve k, the lower the value in heating, and the higher the temperature of the heat medium is in cooling. If the temperature is commanded to the heat source 101, the control method is not limited. The difference from FIG. 7 is that the input part for using the average opening degree of the valve k for control is removed.

　このように構成することで、室温を設定室温に保ちながら、要求される最低限の出湯温度まで出湯温度の目標値を下げることができる。最も高い出湯温度を要求する室２０が変わってしまっても、弁１０６が全開にもかかわらず室温が設定室温に達しない室２０が現れることで検知可能であり、制御対象の室ｋを切り替えることで対応できる。 By configuring in this manner, it is possible to lower the target value of the outlet temperature to the required minimum outlet temperature while maintaining the room temperature at the set room temperature. Even if the room 20 requiring the highest outlet temperature has changed, it can be detected by the appearance of the room 20 in which the room temperature does not reach the set room temperature despite the valve 106 being fully opened, and switching the room k to be controlled It can correspond by.

　本願発明は、これまで述べてきた実施の形態に限定されるものではなく、本願発明の範囲内で種々に改変することができる。すなわち、これまで述べてきた実施の形態の構成を適宜改良してもよく、また、少なくとも一部を他の構成に代替させてもよい。さらに、その配置について特に限定のない構成要素は、実施の形態で開示した配置に限らず、その機能能を達成できる位置に配置することができる。また、これまで述べてきた実施の形態に開示されている複数の構成要素を適宜組み合わせることにより発明を形成してもよい。さらに、本願発明は、これまで述べてきた実施の形態の範囲ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更を含むものである。 The present invention is not limited to the embodiments described above, and can be variously modified within the scope of the present invention. That is, the configuration of the embodiment described so far may be appropriately improved, and at least a part may be replaced with another configuration. Furthermore, the components having no particular limitation on the arrangement are not limited to the arrangements disclosed in the embodiments, and can be arranged at positions where their functional capabilities can be achieved. In addition, the invention may be formed by appropriately combining a plurality of components disclosed in the embodiments described above. Furthermore, the present invention is not the scope of the embodiments described above, is shown by the claims, and includes all modifications within the meaning and scope equivalent to the claims.

　１　空気調和制御システム、２　空間、１０１　熱源、１０２　室内端末、１０３　配管、１０４　ポンプ、１０５　タンク、２０，２１，２２　室、１０６　弁、１０６０　弁開度検出手段、１０７　室温センサ、１０８　リモコン、１０９　空気調和制御装置、１１０　通信経路、１０１１　水冷媒熱交換器、１０１２　膨張弁、１０１３　圧縮機、１０１４　空気冷媒熱交換器、１０１５　熱源ファン、１０１６　冷媒配管、１０１７　出湯温度センサ、３１　記憶部、３２　室選択部、３３　制御部、３２１　平均開度計算部、３２２　比較部、３２３　偏差計算部、３３１　制御演算部、３３２　指令部、１０８１　入力部。 DESCRIPTION OF SYMBOLS 1 Air conditioning control system, 2 space, 101 heat source, 102 indoor terminal, 103 piping, 104 pump, 105 tank, 20, 21, 22 chamber, 106 valve, 1060 valve opening detection means, 107 room temperature sensor, 108 remote control, 109 Air conditioning controller, 110 communication path, 1011 water refrigerant heat exchanger, 1012 expansion valve, 1013 compressor, 1014 air refrigerant heat exchanger, 1015 heat source fan, 1016 refrigerant piping, 1017 outlet hot water temperature sensor, 31 storage unit, 32 rooms Selection unit, 33 control unit, 321 average opening degree calculation unit, 322 comparison unit, 323 deviation calculation unit, 331 control calculation unit, 332 command unit, 1081 input unit.

Claims

各室の設定室温を設定する入力部と、
前記各室の室温を検知する室温検知部と、
指令された温度の熱媒体を生成する熱源と、
各室内空間と前記熱媒体とで熱交換する前記各室の室内端末及び前記熱源の間を循環する前記熱媒体の流量を調整する前記各室の弁と、
所定の経過時間における前記各室の前記弁の平均開度の内、最も前記平均開度が大きくなる当該弁の室を選択する室選択部と、
該室の前記弁の前記平均開度が他の前記室の前記弁の前記平均開度以上で、かつ該室の前記室温が前記設定室温に近づくように前記熱媒体の前記温度を前記熱源に指令する制御部とを備えたことを特徴とする空気調和制御システム。 An input unit to set the set room temperature of each room,
A room temperature detection unit that detects the room temperature of each of the rooms;
A heat source that generates a heat medium of a commanded temperature;
Indoor terminals of the chambers that exchange heat between the indoor space and the heat medium, and valves of the chambers that adjust the flow rate of the heat medium circulating between the heat sources;
A chamber selector for selecting a chamber of the valve having the largest average opening among the average openings of the valves in each of the chambers at a predetermined elapsed time;
The temperature of the heat medium is used as the heat source such that the average opening degree of the valve of the chamber is equal to or higher than the average opening degree of the valve of the other chamber, and the room temperature of the room approaches the set room temperature. An air conditioning control system comprising: a control unit for instructing.
請求項１に記載の空気調和制御システムであって、
前記室選択部は、最も前記弁の前記平均開度が大きくなる前記室が複数存在するときには、前記設定室温と前記室温との偏差が最も大きい前記室を選択することを特徴とする空気調和制御システム。 The air conditioning control system according to claim 1, wherein
The air conditioning control characterized in that the chamber selecting unit selects the chamber having the largest deviation between the set room temperature and the room temperature, when there are a plurality of the chambers where the average opening degree of the valve is largest. system.
請求項１又は請求項２に記載の空気調和制御システムであって、
前記制御部は、当該室を選択後は当該弁の前記平均開度が小さいほど、暖房では低くなるように、冷房では高くなるように前記熱媒体の前記温度を指令することを特徴とする空気調和制御システム。 The air conditioning control system according to claim 1 or 2, wherein
The control unit instructs the temperature of the heat medium to be higher in cooling so that the lower the average opening degree of the valve is in heating and the higher in the cooling after selecting the chamber, the air Harmonic control system.
請求項１から請求項３のいずれか１項に記載の空気調和制御システムであって、
前記熱媒体の前記温度は、該室の前記室温、前記設定室温及び前記弁の前記平均開度を用いてＰＩ制御で求めたことを特徴とする空気調和制御システム。 The air conditioning control system according to any one of claims 1 to 3, wherein
The air conditioning control system, wherein the temperature of the heat transfer medium is obtained by PI control using the room temperature of the chamber, the set room temperature, and the average opening degree of the valve.
請求項１から請求項４のいずれか１項に記載の空気調和制御システムであって、
前記弁は、自律的に開閉し、
前記制御部は、前記弁の開閉の状態を検知していることを特徴とする空気調和制御システム。 The air conditioning control system according to any one of claims 1 to 4, wherein
The valve opens and closes autonomously
The air conditioning control system, wherein the control unit detects an open / close state of the valve.
請求項１から請求項４のいずれか１項に記載の空気調和制御システムであって、
前記弁は、前記制御部からの開度指令で開度を決定し、
前記制御部は、前記室選択部が該室を選択したときには、該室の前記弁を全開とする指令を行うことを特徴とする空気調和制御システム。 The air conditioning control system according to any one of claims 1 to 4, wherein
The valve determines the opening degree by the opening degree command from the control unit,
The air conditioning control system according to claim 1, wherein the control unit issues an instruction to fully open the valve of the chamber when the chamber selection unit selects the chamber.
請求項１から請求項６のいずれか１項に記載の空気調和制御システムであって、
前記弁は、開状態か閉状態の二値となる弁、開閉状態が段階的である弁、開閉状態が連続的な弁のいずれかであることを特徴とする空気調和制御システム。 The air conditioning control system according to any one of claims 1 to 6, wherein
The air conditioning control system characterized in that the valve is either an open or closed binary valve, a valve whose open / close state is stepwise, or a continuous open / close valve.
各室の設定室温を設定する入力工程と、
前記各室の室温を検知する室温検知工程と、
熱源が指令された温度の熱媒体を生成する生成工程と、
前記各室の弁が各室内空間と前記熱媒体とで熱交換する前記各室の室内端末及び前記熱源の間を循環する前記熱媒体の流量を調整する調整工程と、
所定の経過時間における前記各室の前記弁の平均開度の内、最も前記平均開度が大きくなる当該弁の室を選択する室選択工程と、
該室の前記弁の前記平均開度が他の前記室の前記弁の前記平均開度以上で、かつ該室の前記室温が前記設定室温に近づくように前記熱媒体の前記温度を前記熱源に指令する制御工程とを備えたことを特徴とする空気調和制御方法。 An input step of setting the set room temperature of each room;
A room temperature detection step of detecting the room temperature of each of the chambers;
A generation step of generating a heat medium of a temperature at which the heat source is commanded;
An adjusting step of adjusting a flow rate of the heat medium circulating between an indoor terminal of each chamber in which a valve of each chamber exchanges heat with each indoor space and the heat medium, and the heat source;
A chamber selecting step of selecting a chamber of the valve having the largest average opening among the average openings of the valves in each of the chambers at a predetermined elapsed time;
The temperature of the heat medium is used as the heat source such that the average opening degree of the valve of the chamber is equal to or higher than the average opening degree of the valve of the other chamber, and the room temperature of the room approaches the set room temperature. An air conditioning control method comprising: a control step of instructing.