JP6227218B2 - Air conditioning system controller - Google Patents

Air conditioning system controller Download PDF

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JP6227218B2
JP6227218B2 JP2011236211A JP2011236211A JP6227218B2 JP 6227218 B2 JP6227218 B2 JP 6227218B2 JP 2011236211 A JP2011236211 A JP 2011236211A JP 2011236211 A JP2011236211 A JP 2011236211A JP 6227218 B2 JP6227218 B2 JP 6227218B2
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直己 田村
直己 田村
隆也 山本
隆也 山本
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Mitsubishi Electric Corp
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Description

この発明は、区分された複数の各空調対象空間に室内機を設置し、隣接する空調対象空間の室内機を環境状況に応じて制御する空調システム制御装置に関する。   The present invention relates to an air conditioning system control device that installs indoor units in a plurality of divided air conditioning target spaces and controls indoor units in adjacent air conditioning target spaces according to environmental conditions.

近年、ビル等の空調システムを構成する各種の空調機の省エネ化の要求が高まっており、この要求を満たすために、空調機の動力を低減化した空調システム制御装置が数多く提案されている。従来から、多くの空調システム制御装置においては、以下のように、空調負荷に応じて空調システムの運転状態を変える制御方法が提案されている。   In recent years, there has been an increasing demand for energy saving of various air conditioners constituting an air conditioning system for buildings and the like, and many air conditioning system control devices that reduce the power of the air conditioners have been proposed in order to satisfy this demand. Conventionally, in many air conditioning system control devices, a control method for changing the operating state of an air conditioning system in accordance with an air conditioning load has been proposed as follows.

従来技術として、タスク領域であるゾーンの温度及び湿度、並びに空気質の検出値と、設定温度及び、設定湿度、並びに設定空気質との差が小さくなるように、空調設備及び換気設備の運転を複数の室内機の設置位置に応じて制御する方法が提案されている（例えば、特許文献1を参照）。   As a conventional technology, the air conditioning equipment and ventilation equipment are operated so that the differences between the temperature and humidity of the zone, which is the task area, and the detected values of the air quality, and the set temperature, the set humidity, and the set air quality are small. A method of controlling according to the installation positions of a plurality of indoor units has been proposed (see, for example, Patent Document 1).

しかしながら、特許文献1のゾーン制御では、空調対象空間がゾーンになり各室内機を個別に制御するため、快適性は向上するが、エネルギー消費量の削減に関しては、各室内機の効率の面から見ると、快適性を向上させるために極端な運転、例えば最大出力と停止状態を繰り返すような運転をしているために効果的ではない。図１は、空調機の出力−効率曲線を表している。図１において、空調機の出力がPmaxの場合が、最も空調機の効率が良いポイントである。しかし、従来の制御では、必ずしもPmaxの出力で運転はしておらず、例えば、多くの場合はPiの出力で運転しているのが現状である。 However, in the zone control of Patent Document 1, the air-conditioning target space becomes a zone and each indoor unit is controlled individually, so comfort is improved. However, regarding the reduction of energy consumption, from the aspect of the efficiency of each indoor unit. From the viewpoint, it is not effective because extreme driving is performed to improve comfort, for example, driving is repeated such that the maximum output and the stop state are repeated. FIG. 1 shows an output-efficiency curve of an air conditioner. In FIG. 1, the most efficient point of the air conditioner is when the output of the air conditioner is P max . However, in the conventional control, not in necessarily operated at the output of the P max, for example, in many cases at present, is operating at the output of the P i.

特開２０１０-２５５９００号公報（第１５頁、図１）JP 2010-255900 A (page 15, FIG. 1)

従来の空調システム制御装置は、複数の室内機を個別に省エネ化を行っているため、室内機全体の効率的な運転ができていないという課題があった。   Since the conventional air conditioning system control device individually saves energy in a plurality of indoor units, there is a problem that the entire indoor unit cannot be efficiently operated.

この発明は、上記のような課題を解決するためになされたものであり、隣接する空調対象空間に室温差がある場合に、室内機出力のばらつきを低減させて、省エネ化を実現した空調システム制御装置を得ることを目的とする。   The present invention has been made to solve the above-described problems. When there is a room temperature difference between adjacent air-conditioning target spaces, the air-conditioning system achieves energy saving by reducing variations in the output of indoor units. The object is to obtain a control device.

この発明に係る空調システム制御装置は、室内機が設置された複数の空調対象空間の夫々に設けられた環境センサによって検出された隣接する空調対象空間の実測環境値の差が所定値以内であれば、隣接する空調対象空間を空調対象空間統合部で統合し、統合化された空調対象空間で設定した統合実測環境値と設定環境値との比較によって各室内機の設定出力を室内機出力計算部で計算して室内機の運転制御信号として出力するようにしたものであって、当該空調対象空間は、当該空調対象空間よりも大きな複数の室内機が設置された１つの空間が区分された空間であって、１台の室内機による空調の対象となる空間であるものである。 In the air conditioning system control device according to the present invention, the difference between the measured environmental values of the adjacent air conditioning target spaces detected by the environmental sensor provided in each of the plurality of air conditioning target spaces in which the indoor units are installed is within a predetermined value. For example, adjacent air-conditioning target spaces are integrated by the air-conditioning target space integration unit, and the setting output of each indoor unit is calculated by comparing the integrated measured environment value set in the integrated air-conditioning target space with the set environment value. what der those output as the operation control signal of the indoor unit calculated in parts, the air conditioning target space, one spatial large plurality of indoor units than the air conditioning target space is installed is divided This is a space that is subject to air conditioning by one indoor unit .

この発明によれば、隣接する空調対象空間の実測環境値の差が所定値以内であれば、隣接する空調対象空間を統合し、統合された空調対象空間において統合実測環境値と設定環境値とに基づき各室内機の出力を計算するようにしているので、室内機の出力ばらつきを低減させることができるため、室内機の運転効率が向上し、省エネ効果が得られる。   According to this invention, if the difference between the measured environment values of the adjacent air conditioning target spaces is within a predetermined value, the adjacent air conditioning target spaces are integrated, and the integrated measured environment value and the set environment value are integrated in the integrated air conditioning target space. Since the output of each indoor unit is calculated based on the above, the output variation of the indoor unit can be reduced, so that the operation efficiency of the indoor unit is improved and an energy saving effect is obtained.

空調機の出力−効率曲線を表した図である。It is a figure showing the output-efficiency curve of an air conditioner. この発明の実施の形態１である空調システム制御装置を示すブロック図である。It is a block diagram which shows the air conditioning system control apparatus which is Embodiment 1 of this invention. この発明の実施の形態１である空調システム制御装置における各室内機の配置図である。It is an arrangement plan of each indoor unit in the air-conditioning system control device which is Embodiment 1 of this invention.

実施の形態１．
図２は、この発明を実施するための実施の形態１における空調システム制御装置のブロック図であり、図３は、図２に示す空調システム制御装置における室内機と空調対象空間の配置の一例を示す配置図である。 Embodiment 1 FIG.
2 is a block diagram of the air conditioning system control apparatus according to Embodiment 1 for carrying out the present invention, and FIG. 3 is an example of the arrangement of indoor units and air conditioning target spaces in the air conditioning system control apparatus shown in FIG. FIG.

図３において、Ａ〜Ｆは各室内機（１ａ〜１ｆ）の空調対象空間を表している。ここでは、図３のように各室内機１ａ〜１ｆが各空調対象空間Ａ〜Ｆの室内天井中央部分に配置された場合について説明する。また、図３のＡ〜Ｆの全ての空調対象空間を合わせて空調空間と呼ぶことにする。図２において、１a〜１ｆはビルマルチ型空調機において空調が必要とされるフロアに配置される室内機であり、ここでは６機の室内機によって空調空間が空調されていることを示している。なお、各符号に付しているアルファベットａ〜ｆは、図３に示す空調対象空間Ａ〜Ｆに対応している。他の部分の符号においても同様である。２ａ〜２ｆは空調対象空間である室内の環境値を検出する環境センサであって、この実施の形態では環境値として室温を検出する温度センサで説明する。３ａ〜３ｆは空調制御装置４の室内機出力計算部９により計算された室内機設定出力に従って各室内機１ａ〜１ｆを制御する室内機制御部、４は温度センサ２ａ〜２ｆによって検出された各実測室温が入力され、省エネ運転が可能になる各室内機の設定出力量を決定して各室内機制御部３ａ〜３ｆに各室内機設定出力量の信号を送る空調制御装置、５は制御対象の空調対象空間にある温度センサ２ａ〜２ｆから得られる実測環境値である実測室温及びこの実測室温を検出した温度センサの識別番号から、この温度センサがどの空調対象空間（換言すれば、何れの室内機）に位置しているのかを確定し、検出された実測室温及び空調対象空間の位置を関連付ける情報取得部、６は情報取得部５によって入力される実測室温と空調対象空間に関連付けされた位置情報とからなる入力情報を記憶するデータ記憶部、７はデータ記憶部６にある位置情報及び実測室温を用いて、設定値に基づき各室内機の空調対象空間を統合するかを判定する統合判定部、８は統合判定部７の決定に従って、空調対象空間をそれぞれ統合し、統合された空調対象空間の実測室温を平均化して統合実測環境値である統合実測室温を設定する空調対象空間統合部、９は空調対象空間統合部８によって得られた統合実測室温と設定環境値である設定室温とに基づき、各室内機の出力を設定する室内機出力計算部である。   In FIG. 3, A to F represent air-conditioning target spaces of the indoor units (1a to 1f). Here, the case where each indoor unit 1a-1f is arrange | positioned at the indoor ceiling center part of each air-conditioning object space AF as FIG. 3 is demonstrated. Further, all the air-conditioning target spaces A to F in FIG. 3 are collectively referred to as an air-conditioned space. In FIG. 2, 1a to 1f are indoor units arranged on the floor where air conditioning is required in the building multi-type air conditioner. Here, the air-conditioned space is air-conditioned by six indoor units. . In addition, the alphabets af attached | subjected to each code | symbol respond | correspond to the air-conditioning object space AF shown in FIG. The same applies to the other reference numerals. Reference numerals 2a to 2f are environmental sensors for detecting an indoor environmental value, which is an air-conditioning target space. In this embodiment, a temperature sensor for detecting room temperature as an environmental value will be described. 3a to 3f are indoor unit control units that control the indoor units 1a to 1f according to the indoor unit setting outputs calculated by the indoor unit output calculation unit 9 of the air conditioning control device 4, and 4 are each detected by the temperature sensors 2a to 2f. An air conditioning control device that determines the set output amount of each indoor unit that can input the measured room temperature and enables energy-saving operation, and sends a signal of each indoor unit set output amount to each of the indoor unit control units 3a to 3f. From the measured room temperature that is the measured environment value obtained from the temperature sensors 2a to 2f in the air conditioning target space and the identification number of the temperature sensor that detected the measured room temperature, which temperature sensor is in which air conditioning target space (in other words, which An information acquisition unit for ascertaining whether it is located in the indoor unit) and associating the detected actual room temperature with the position of the air-conditioning target space, 6 is related to the actual room temperature input by the information acquisition unit 5 and the air-conditioning target space A data storage unit 7 for storing input information including the position information obtained, and 7 indicates whether to integrate the air-conditioning target space of each indoor unit based on the set value using the position information in the data storage unit 6 and the measured room temperature. An integrated determination unit for determining, 8 is an air conditioning unit that integrates the air-conditioning target spaces according to the determination of the integrated determination unit 7, averages the measured room temperature of the integrated air-conditioning target space, and sets the integrated measured room temperature as an integrated measured environment value The target space integration unit 9 is an indoor unit output calculation unit that sets the output of each indoor unit based on the integrated measured room temperature obtained by the air conditioning target space integration unit 8 and the set room temperature that is the set environment value.

温度センサ２は各室内機の空調対象空間内において、任意の場所に設置される。基本的には各室内機と一緒に設置される。より現実的で精度の高い室温を計測するためには、各室内機の空調対象空間にいる人が作業している部分、例えばオフィス内のデスク付近の室温を検出するセンサを各室内機に搭載する。   The temperature sensor 2 is installed in an arbitrary place in the air conditioning target space of each indoor unit. It is basically installed with each indoor unit. For more realistic and accurate measurement of room temperature, each indoor unit is equipped with a sensor that detects the room temperature of the person in the air-conditioned space of each indoor unit, for example, the room temperature near the desk in the office To do.

次に、動作について説明する。温度センサ２ａ〜２ｆは空調対象空間Ａ〜Ｆの室内機毎の室温をそれぞれ検出し、検出された室温を各室内機に対応させてデータ記憶部６に格納する。この時、温度センサ２ａ〜２ｆで計測された実測室温は各室内機１ａ〜１ｆに対応した実測室温であるため、情報取得部５はこれら実測室温と各室内機との対応から位置情報を取得する。そして、この取得された位置情報と、計測された実測室温とを関連付ける制御を行う。   Next, the operation will be described. The temperature sensors 2a to 2f detect the room temperatures of the indoor units in the air conditioning target spaces A to F, respectively, and store the detected room temperatures in the data storage unit 6 in association with the indoor units. At this time, since the measured room temperature measured by the temperature sensors 2a to 2f is the measured room temperature corresponding to each indoor unit 1a to 1f, the information acquisition unit 5 acquires position information from the correspondence between the measured room temperature and each indoor unit. To do. Then, control for associating the acquired position information with the measured actual room temperature is performed.

各室内機１ａ〜１ｆにおける実測室温は、統合判定部７によって、データ記憶部６にある位置情報及び実測室温を用いて、隣接する各空調対象空間の実測室温同士を比較し、その差が設定値以内であれば、これら隣接する空調対象空間を統合することを決定する。そして、空調対象空間統合部８は、統合判定部７によって決定された隣接する空調対象空間を統合する処理を行う。例えば、統合される隣接する空調対象空間がＡとＢの場合では、温度センサ２ａと２ｂそれぞれで検出された実側室温を平均化した室温を統合実測室温とする。図３では空調対象空間Ａは空調対象空間Ｂ、Ｄ、Ｅが隣接しているので、これらの空調対象空間について同様の処理を行い、統合すべき隣接する空調対象空間において統合実測室温を設定する。   The measured room temperature in each of the indoor units 1a to 1f is compared with the measured room temperature of each adjacent air-conditioning target space using the position information and the measured room temperature in the data storage unit 6 by the integrated determination unit 7, and the difference is set. If it is within the value, it is decided to integrate these adjacent air-conditioning target spaces. The air conditioning target space integration unit 8 performs processing for integrating adjacent air conditioning target spaces determined by the integration determination unit 7. For example, when the adjacent air conditioning target spaces to be integrated are A and B, the room temperature obtained by averaging the real-side room temperatures detected by the temperature sensors 2a and 2b is set as the integrated actually measured room temperature. In FIG. 3, since the air-conditioning target space A is adjacent to the air-conditioning target spaces B, D, and E, the same processing is performed for these air-conditioning target spaces, and the integrated measured room temperature is set in the adjacent air-conditioning target spaces to be integrated. .

ここで、統合判定部７における設定値は、隣接する各空調対象空間の室温差であって、例えば０．５℃である。この各空調対象空間を統合する処理を、全空調対象空間を対象として行う。統合後の各空調対象空間に対しては、室内機出力計算部９において空調対象空間毎の室内機の設定出力を計算する。この際、設定室温と統合実測室温の差によって室内機出力を設定する。そして、例えば、統合する空調対象空間がＡとＢの場合、室内機出力計算部９からの室内機設定出力信号は、制御対象となる空調対象空間ＡとＢに配置されている室内機１ａと１ｂの各室内機制御部３ａと３ｂに与えられ、室内機制御部３ａと３ｂにおいては、各室内機１ａと１ｂの出力が設定値となるように制御する。また、これらの制御は、単位時間毎、例えば３０分毎に繰り返される。   Here, the set value in the integrated determination unit 7 is a room temperature difference between adjacent air-conditioning target spaces, for example, 0.5 ° C. The process of integrating the air conditioning target spaces is performed for all the air conditioning target spaces. For each air conditioning target space after integration, the indoor unit output calculation unit 9 calculates the set output of the indoor unit for each air conditioning target space. At this time, the indoor unit output is set based on the difference between the set room temperature and the integrated measured room temperature. For example, when the air conditioning target spaces to be integrated are A and B, the indoor unit setting output signal from the indoor unit output calculation unit 9 is the indoor unit 1a arranged in the air conditioning target spaces A and B to be controlled. 1b is given to the indoor unit control units 3a and 3b, and the indoor unit control units 3a and 3b control the outputs of the indoor units 1a and 1b to be set values. These controls are repeated every unit time, for example, every 30 minutes.

上述の実施の形態では、環境センサとして、温度センサを用いて場合を説明したが、温度センサに加えて湿度センサを組み合わせることも可能である。この場合、各室内機の空調対象空間の室温センサ及び湿度センサから室温及び湿度を検出し、これら室温及び湿度の両方を考慮して空調対象空間を統合するかを決定することになるので、人体にとってはより快適な空調が可能となる。   In the above-described embodiment, the case where the temperature sensor is used as the environmental sensor has been described. However, it is also possible to combine a humidity sensor in addition to the temperature sensor. In this case, the room temperature and humidity are detected from the room temperature sensor and humidity sensor of the air conditioning target space of each indoor unit, and it is determined whether to integrate the air conditioning target space in consideration of both the room temperature and humidity. For this, more comfortable air conditioning is possible.

環境センサとして、温度センサ及び湿度センサを使用した場合、データ記憶部６は温度センサから検出された実測室温及び湿度センサから検出された実測湿度、並びに位置情報を格納することになる。また、統合判定部７は、隣接する空調対象空間の実測室温及び実測湿度を夫々同時に比較し、実測室温の差及び実測湿度の差の何れもが夫々の設定値以内ならばこれらの隣接する空調対象空間を統合することを決定する。この時の湿度の設定値としては、隣接する空調対象空間の湿度差であって、例えば、１０％とする。空調対象空間統合部８は、統合判定部７によって決定された空調対象空間を統合し、統合された空調対象空間の実測室温及び実測湿度はそれぞれを平均化され、統合実測室温及び統合実測湿度として設定される。また、室内機出力計算部９は空調対象空間統合部８によって決定された統合後の統合実測室温と設定室温との比較及び統合実測湿度と設定湿度の比較によって、各室内機の出力を計算する。室内機１ａ〜１ｆの各室内機制御部３ａ〜３ｆは、室内機出力計算部９からの室内機設定出力信号に基づき、該当する室内機１ａ〜１ｆの出力が設定値となるよう制御する。   When a temperature sensor and a humidity sensor are used as environmental sensors, the data storage unit 6 stores the measured room temperature detected from the temperature sensor, the measured humidity detected from the humidity sensor, and the position information. Further, the integrated determination unit 7 compares the measured room temperature and the measured humidity of the adjacent air-conditioning target spaces at the same time, and if both of the measured room temperature difference and the measured humidity difference are within the respective set values, the adjacent air conditioning units Decide to integrate the target space. The humidity setting value at this time is a humidity difference between adjacent air-conditioning target spaces, for example, 10%. The air conditioning target space integration unit 8 integrates the air conditioning target space determined by the integration determination unit 7, and the measured room temperature and actual humidity of the integrated air conditioning target space are averaged to obtain the integrated actual measurement room temperature and the integrated actual measurement humidity. Is set. The indoor unit output calculation unit 9 calculates the output of each indoor unit by comparing the integrated actual measured room temperature and the set room temperature determined by the air conditioning target space integrating unit 8 and comparing the integrated actual measured humidity and the set humidity. . Based on the indoor unit setting output signal from the indoor unit output calculation unit 9, the indoor unit control units 3a to 3f of the indoor units 1a to 1f control the outputs of the corresponding indoor units 1a to 1f to be set values.

以上説明したように、本実施の形態１による空調システム制御装置は、各室内機の空調対象空間の室温を検出し、隣接する各室内機の空調対象空間の各実測室温の室温差によって、各室内機の空調対象空間を統合し、統合された空調対象空間において空調制御を行うことで、室内機を効率よく運転できるので、省エネ効果を得ることができる。   As described above, the air conditioning system control apparatus according to the first embodiment detects the room temperature of the air-conditioning target space of each indoor unit, and determines the room temperature difference between the measured room temperatures of the air-conditioning target spaces of the adjacent indoor units. By integrating the air conditioning target spaces of the indoor units and performing air conditioning control in the integrated air conditioning target spaces, the indoor units can be operated efficiently, so that an energy saving effect can be obtained.

１ 室内機
２ 環境センサ
３ 室内機制御部
４ 空調制御装置
５ 情報取得部
６ データ記憶部
７ 統合判定部
８ 空調対象空間統合部
９ 室内機出力計算部 DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Environmental sensor 3 Indoor unit control part 4 Air-conditioning control apparatus 5 Information acquisition part 6 Data storage part 7 Integrated determination part 8 Air-conditioning object space integration part 9 Indoor unit output calculation part

Claims (3)

室内機が設置された複数の空調対象空間のそれぞれに設けられ、各空調対象空間の環境値を検出する環境センサと、前記環境センサによって検出された実測環境値がいずれの前記空調対象空間で検出されたかを関連付ける情報取得部と、空調対象空間と関連付けられた前記実測環境値を格納するデータ記憶部と、隣接する空調対象空間の前記実測環境値を比較し、前記実測環境値の差が設定値以内ならばこれらの隣接する空調対象空間を統合することを決定する統合判定部と、前記統合判定部により決定された隣接する空調対象空間を統合し、統合された空調対象空間の前記実測環境値を平均化した環境値を統合実測環境値として設定する空調対象空間統合部と、前記空調対象空間統合部によって得られた前記統合実測環境値と設定環境値との比較によって、前記各室内機の設定出力を計算し、前記室内機の運転を制御する信号として出力する室内機出力計算部とを備え、前記空調対象空間は、前記空調対象空間よりも大きな複数の室内機が設置された１つの空間が区分された空間であって、１台の室内機による空調の対象となる空間である、空調システム制御装置。 An environmental sensor that detects an environmental value of each air conditioning target space provided in each of the plurality of air conditioning target spaces in which the indoor units are installed, and an actual measurement environmental value detected by the environmental sensor is detected in any of the air conditioning target spaces. An information acquisition unit for associating whether or not a data storage unit for storing the actual measurement environment value associated with the air conditioning target space is compared with the actual measurement environment value of the adjacent air conditioning target space, and the difference between the actual measurement environment values is set. If it is within the value, an integrated determination unit that determines to integrate these adjacent air-conditioning target spaces and the adjacent air-conditioning target space determined by the integrated determination unit are integrated, and the measured environment of the integrated air-conditioning target space An air conditioning target space integration unit that sets an environment value that is an averaged value as an integrated actual measurement environment value, and the integrated actual measurement environment value and the set environment value that are obtained by the air conditioning target space integration unit, By comparison, the calculated setting output of each indoor unit, and an indoor unit output calculation unit for outputting a signal for controlling the operation of the indoor unit, the air conditioning target space, a plurality of larger than the space to be air-conditioned An air conditioning system control device , which is a space in which one space in which an indoor unit is installed is divided and is a space to be air-conditioned by one indoor unit. 環境値は室温であり、前記環境センサは温度センサであることを特徴とする請求項１に記載の空調システム制御装置。   The air conditioning system control device according to claim 1, wherein the environmental value is room temperature, and the environmental sensor is a temperature sensor. 環境値は室温及び湿度であり、前記環境センサは温度センサ及び湿度センサであって、前記統合判定部は隣接する空調対象空間の実測室温及び実測湿度を夫々比較し、実測室温の差及び実測湿度の差のいずれもが夫々の設定値以内ならばこれらの隣接する空調対象空間を統合することを決定することを特徴とする請求項１に記載の空調システム制御装置。   The environmental value is room temperature and humidity, and the environmental sensor is a temperature sensor and humidity sensor, and the integrated determination unit compares the measured room temperature and measured humidity of the adjacent air-conditioning target space, respectively, and compares the measured room temperature and measured humidity. The air-conditioning system control apparatus according to claim 1, wherein if any of the differences is within the respective set values, it is determined to integrate these adjacent air-conditioning target spaces.
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