JP2003222371A - Air conditioner control method and air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control an air conditioner while both reducing electric power consumption and improving a comfortableness. <P>SOLUTION: Based on the executable conditions of a control method stored in a database 21 and outside air data D2, an executable control list generating part 13 generates an executable control list D3 enumerating executable control methods from various types of control methods. Based on the outside air data D2, executable control list D3, and a capacity control reduction ratio table stored in a database 22, an execution control determination part 14 transmits a control method D4 determined to be adopted to a power saving control schedule preparation part 15. The power saving control schedule preparation part 15 prepares an operation schedule D5 using the control method D4 determined to be adopted, and transmits the schedule to a load 16, for example, to an air conditioner. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a control method for an air conditioner.

[0002]

2. Description of the Related Art Conventionally, various control methods have been proposed to save power in an air conditioner. As such a control method, in addition to changing the set temperature, capacity control for suppressing the cooling and heating capacity of the outdoor unit for operation, and intermittent operation for forcibly turning off (thermo-off) the indoor unit can be exemplified.

[0003]

However, each of these control methods depends on the outside air condition, and reduces the amount of power reduction,
There are differences in the degree of improvement in the indoor environment. Therefore, when these control methods are used alone, there is a trade-off between power reduction and the degree of improvement of the indoor environment.

Therefore, it is desirable to adopt these control methods depending on the outside air conditions. It is also desirable to confirm whether such adoption is properly performed and desired power saving is performed.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a control technique for an air conditioner that achieves both reduction in power consumption and comfort, and further, a technique for confirming power saving. .

[0006]

According to a first aspect of the present invention, there is provided a control method for an air conditioner (16), comprising: (a) a plurality of mutually different control methods (T1 to Tn).
From the steps (S2i, S3i), (b) selected in step (a), a step (D3) capable of setting a predetermined indoor environment for the index (D2, A) indicating the condition of the outside air. A step (D6) of selecting the maximum reduction rate (Fi (A)) of power consumption from the plurality of control methods; (S6i, S7i); Generating a control schedule (D5) based on the selection made in step (b).

A second aspect of the present invention is a method for controlling an air conditioner according to the first aspect, wherein any of the plurality of control methods (T1 to Tn) in step (a) is used. When not selected, instead of executing steps (b) and (c), step (d) of controlling the air conditioner (16) with the rated capacity is executed.

According to a third aspect of the present invention, there is provided an air conditioner control method according to the first or second aspect, wherein the plurality of control methods (T1 to Tn) are capacity control and Including intermittent operation.

Alternatively, the plurality of control methods (T1 to T
n) includes capacity control with mutually different upper limit values. Alternatively, the plurality of control methods (T1 to Tn) include intermittent operation with different control rates.

In the method for controlling an air conditioner according to any one of the first to third aspects of the present invention, preferably, the index is a discomfort index (A). Alternatively, the outside air temperature (Te) and the outside air humidity (He) based on the discomfort index are obtained at predetermined time intervals. Alternatively, further, the discomfort index is obtained at the predetermined time intervals based on the outside air temperature and the outside air humidity. Alternatively, the average value of the discomfort index obtained at each predetermined time may be obtained again as the discomfort index.

Alternatively, it is also preferable that the discomfort index is obtained using the maximum values of the outside air temperature and the outside air humidity obtained for each of the predetermined times in one day. Alternatively, it is also preferable that the discomfort index is obtained by using an average value of the outside air temperature and the outside air humidity obtained every predetermined time period.

According to a fourth aspect of the present invention, there is provided an air conditioner control method according to any one of the first to third aspects and variations thereof, wherein an actual measured value (41) of integrated electric energy is provided. The presence or absence of abnormality is detected based on the result of comparison between the target value (J2) and the target value (J2).

Preferably, the integrated electric energy is integrated from the start of a predetermined period for managing the electric energy. Alternatively, preferably, the integrated electric energy is integrated in a period that is a predetermined period (M) back from the current time (Tx).

According to a fifth aspect of the present invention, there is provided an air conditioner control method according to any one of the first to third aspects and their modifications, wherein the predetermined indoor environment is obtained. Check if there is.

According to a sixth aspect of the present invention, there is provided an air conditioner control method according to any one of the first to third aspects and variations thereof, wherein the integrated electric energy and the predetermined indoor environment are set. The relationship with is displayed.

Preferably, the relationship is displayed separately for each day.

According to a seventh aspect of the present invention, there is provided an air conditioner control method according to any of the first to sixth aspects and variations thereof, wherein the predetermined indoor environment is the air conditioner. The suction temperature to the indoor unit of the air conditioner is adopted.

The eighth aspect of the present invention is an air conditioning system (300), which uses a plurality of mutually different control methods (T1 to Tn) to indicate an outside air condition (D2, A). A control table creation unit (303) that creates a control table showing the control method (D4) in which a predetermined indoor environment can be set and the power consumption reduction rate (Fi (A)) is maximized. And a control table expansion unit (305) that creates a control schedule of the air conditioner (200) based on the control table.

Preferably, the remote monitoring center (300
a) and a local control system (300b), the remote monitoring center has the control table creating unit, and the local control system has the control table expanding unit.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION First Embodiment. FIG. 1 is a block diagram showing a configuration capable of executing the operation of the first embodiment of the present invention. The weather information input unit 11 inputs weather data including a forecast, for example, outside air temperature and outside air humidity. Then, these are transmitted to the weather information calculation unit 12 as the weather data D1.

The meteorological information calculation unit 12 calculates the outside air data D2 based on the meteorological data D1 and transmits it to the feasible control list generation unit 13. The outside air data D2 is, for example, the discomfort index A, and the outside air temperature and the outside air humidity are Te and H, respectively.
It is calculated by the equation (1) as e.

[0022]

[Equation 1]

If this value is 70, some people are uncomfortable, if it is 75, half of the people are uncomfortable, and if it is 80, all are uncomfortable. In other words, the discomfort index A is small enough to be comfortable with respect to the summer heat and humidity.
It can be used as an indicator of the outside air condition.

A plurality of discomfort indexes A may be obtained corresponding to the temperature and humidity for each hour, or only the maximum value or average value thereof may be adopted. The outside air temperature and the outside air humidity may be predicted values or actually measured values.

The feasible control list generation unit 13 lists the feasible control methods among various control methods based on the feasible conditions of the control methods stored in the database 21 and the outside air data D2. Generate a list D3. The feasible control list D3 is transmitted to the feasible control determining unit 14.

FIG. 2 is a flow chart showing the operation up to this point. In step S0, the weather information input unit 11
However, the outside air temperature Te and the outside air humidity He are input as the weather information D1. Next, in step S1, the weather information calculation unit 12 obtains the discomfort index A.

Next, in steps S2i and S3i (i = 1,
2, ..., N), the control method Ti is executed in the situation of the discomfort index A, and only when the predetermined indoor environment can be set, the control method Ti is put in the executable control list D3. Specifically, each control method Ti has a lower limit Ai1 and an upper limit Ai2 of the discomfort index A that can be dealt with, and it is determined that each control method Ti can be implemented when Ai1 ≦ A ≦ Ai2 is satisfied. . Then, in step S4, the feasible control list is generated.

FIG. 3 shows the feasible conditions of the control method. The control method Ti and the lower limit Ai of the discomfort index A which can be handled by the control method Ti.
It is a figure which shows the relationship with 1 and the upper limit Ai2. For example, the control method of the capacity control upper limit of 70% is control in which the capacity is limited to 70% of the rated capacity as the upper limit. Further, for example, the control method with an intermittent operation control rate of 10% is a control for performing intermittent operation in which the percentage obtained by dividing the value obtained by subtracting the actual operating time from the operating time zone by the operating time zone is 10%. In both the capacity control and the intermittent operation, the lower limit Ai1 and the upper limit Ai2 of the discomfort index A that can be dealt with differ depending on the upper limit and the percentage of the control rate, respectively. Here, "compatible" means that the operation can be performed so that the temperature can be set to a predetermined temperature, and is based on, for example, whether or not the operation that sets the indoor temperature between 20 and 28 ° C is possible.

As the detection of the room temperature, a room temperature sensor for measuring the room temperature may be provided. In addition, it is not necessary to separately provide the room temperature sensor by adopting the suction temperature to the indoor unit, which is detected by the air conditioner (not shown).
The suction temperature after a lapse of a predetermined time after the start of air conditioning may be adopted, or this may be adopted after the suction temperature stabilizes.

4 and 5 are graphs in which the room temperature that can be set is plotted against the discomfort index A. Fig. 4 shows the case of adopting the control method with the upper limit of capacity control of 40%.
FIG. 5 shows cases where a control method with an intermittent operation control rate of 20% is adopted.

As shown in FIG. 4, if the discomfort index A is lower than 38, the room temperature may not be set to 20 ° C. or higher, and if the discomfort index A is higher than 84, the room temperature may not be set to 28 ° C. or lower. I understand. Therefore, the lower limit of the discomfort index A at which the control method with the ability control upper limit of 40% can be carried out is 38, and the upper limit thereof is 84. The third is shown in FIG.
The above relationship is shown in the column.

Further, from FIG. 5, when the discomfort index A is lower than 40, the room temperature may not be set to 20 ° C. or higher, and when the discomfort index A is higher than 79, the room temperature is 28.
It can be seen that it may not be possible to set the temperature below ℃. Therefore, the lower limit of the discomfort index A with which the control method with the intermittent operation control rate of 20% can be implemented is 40, and the upper limit thereof is 79. FIG. 3 shows the above relationship in the fifth column.

For example, the contents shown in FIG. 3 are stored in the database 21, and in that case, in FIG.
= 7. Then, for example, if the discomfort index A obtained by the weather information calculation unit 12 in step S1 is 80, the control method T1 (capacity control upper limit 70%), T2 (capability control upper limit 50%), T3 (capability control upper limit 40%). , T4 (intermittent operation control rate 10%) are listed in the feasible control list D3, T5 (intermittent operation control rate 20%), T6 (intermittent operation control rate 30%), T7 (intermittent operation control rate 40%) Not listed as inoperable.

Returning to FIG. 1, the execution control determination unit 14 determines, based on the outside air data D2, the executable control list D3, and the capacity control reduction rate table stored in the database 22,
The control method D4, which has been confirmed to be adopted, is transmitted to the power saving control schedule creation unit 15. The power-saving control schedule creation unit 15 creates an operation schedule D5 using the control method D4 whose adoption has been determined, and transmits this to the load 16, for example, the air conditioner.

The weather data D1 may be updated every day. Then, for example, it may be data for predicting a change in weather for one day, and in this case, the outside air data D2 also indicates a change for one day. It is desirable that the control method D4 that has been adopted is also changed in one day, and that a plurality of the control methods D4 that have been adopted are preferably set in time series as a control table for one day.

FIG. 6 is a flowchart for connecting to FIG. 2 via the connector J1 and shows the operations of the execution control determination unit 14 and the power saving control schedule creation unit 15. In step S5, the executable control confirmation unit 14 refers to the executable control list D3. If there is no feasible control method for discomfort index A, feasible control list D
If 3 is empty, the process proceeds to step S70, and the operation is performed without using a control method, that is, using the rated capacity. Specifically, the process proceeds to step S9, and the power saving control schedule creation unit 15 creates the operation schedule D5 using the rated capacity.

If the feasible control list D3 is not empty in step S60, it is determined in step S6i whether the control method Ti is listed in the feasible control list D3. Then, in step S7i corresponding to the enumerated control method Ti, the power consumption reduction rate Fi (A)
Is required. Here, the reduction rate Fi (A) is based on the power consumed when the vehicle is operated at the rated capacity, and is generally a function of the discomfort index A.

7 and 8 both show the discomfort index Fi.
It is a graph which shows the relationship of reduction rate Fi (A) with respect to (A). FIG. 7 shows the case where the intermittent operation control method is adopted, and FIG. 8 shows the case where the capacity control control method is adopted.

In FIG. 7, the curves L1, L2, and L3 show a decreasing control rate for intermittent operation in this order. That is, the curve L2 is better than the curve L1, and the curve L2 is better than the curve L2.
In No. 3, the operating time of the indoor unit is longer. However, in any control rate, the reduction rate Fi (A) does not depend on the discomfort index A.

In the curves L4 and L5 in FIG. 8, the percentage of the upper limit of capacity control increases in this order. That is, the curve L
The curve L5 can operate up to a higher capacity than the curve L4. In the control method of the ability control upper limit, the reduction rate Fi (A) with respect to the discomfort index A is convex downward, and the reduction rate Fi
(A) presents a curve having a flat portion where it becomes zero. Curve L
4 and L5 are flat in regions R1 and R2 of the discomfort index A, respectively. In the control method of the ability control upper limit, the higher the percentage of the upper limit, that is, the smaller the rate of limiting the ability, the smaller the reduction rate Fi (A) becomes in the discomfort index A in a wider range. That is, the region R2 is larger than the region R1.
Is wider.

When the discomfort index A is lower than the flat portion where the reduction rate Fi (A) becomes zero, that is, the regions R1 and R2, the curves L4 and L5 respectively reduce the reduction rate Fi (A) as the discomfort index A decreases. A) rises almost linearly. Conversely, the regions R1 and R2
If the discomfort index A is higher than that of the curve L4,
With L5, the reduction rate Fi (A) increases almost linearly as the discomfort index A increases.

FIG. 9 is a graph showing that the reduction rate Fi (A) depends on the discomfort index A in the control method for the upper limit of ability control. The horizontal axis represents time, and the vertical axis represents the percentage of air conditioning capacity / rated capacity. The value on the vertical axis corresponds to the percentage of the upper limit of capacity control. Here, for simplicity, the description will be made assuming that the discomfort index A is constant in one day.

Graphs P1 and P2 are graphs showing the air conditioning capacities required according to different outside air conditions. The graph P1 shows that the rated capacity of 4 is set in a predetermined temperature range (for example, 20 to 28 ° C. in the above example) in a certain time zone.
An air conditioning capacity of 0% or more is required, but an air conditioning capacity of 70% is unnecessary. Further, the graph P2 requires an air conditioning capacity of 70% or more of the rated capacity in order to set the temperature range within a certain time zone.

For example, assuming that the curves L4 and L5 in FIG. 8 are control methods with upper limit of 40% and 70%, respectively, when the discomfort index A takes the values K1 and K2, the graphs P1 and P2 of FIG. 9 are taken. Equivalent to. When the discomfort index A takes the value K1, in the control method with the upper limit of the ability control of 40%,
The maximum neighborhood of the graph P1 is clipped to the air conditioning capacity of 40% of the rated capacity, and the reduction rate F3 (K1) becomes positive. On the other hand, in the control method with the capacity control upper limit of 70%, the maximum value of the graph P1 is smaller than the air conditioning capacity of 70% of the rated capacity, so the reduction rate F1 (K1) becomes zero. That is, the electric power is not reduced as compared with the case of operating at the rated capacity.

On the other hand, when the discomfort index A takes the value K2, in the control method in which the capacity control upper limit is 40%, the maximum neighborhood of the graph P2 is clipped to the air conditioning capacity of 40% of the rated capacity, and the reduction rate is reduced. F3 (K2) has a value reflecting the area Q4 indicated by the diagonal line rising to the right. This is the reduction rate F3
It is larger than (K1). On the other hand, in the control method with the capacity control upper limit of 70%, the maximum vicinity of the graph P2 is 70% of the rated capacity.
Reduction rate F1 by being clipped to% air conditioning capacity
(K2) becomes a positive value with a value reflecting the area Q5 indicated by the diagonal line descending to the right. However, F1 (K2) <F3 (K
It becomes 1).

As described above, for the same value of the discomfort index A, the power reduction rate Fi (A) differs depending on the control method. Therefore, in step S8, the existing reduction rate F1
The maximum control method among Fn is selected.
The selected control method is the control method D4 that has been decided to be adopted, and will contribute to the creation of the power saving control schedule in step S9.

Actually, the value of the discomfort index A is considered to change in one day. Therefore, as described above, the control method D
It is desirable that a plurality of 4 are set in a time series within one day, and that they take the form of a control table. As mentioned above, meteorological data D1
Alternatively, the discomfort index A, which is an index of the condition of the outside air, may be obtained based on the forecasts of the outside air temperature and the outside air humidity. Alternatively, as the meteorological data D1, the outside air temperature Te and the outside air humidity He may be obtained at predetermined time intervals, or the discomfort index A may also be obtained at predetermined time intervals. Alternatively, the average value of the discomfort index A thus obtained may be adopted as an index of the condition of the outside air. Alternatively, the discomfort index A may be obtained using the maximum value and the average value of the outside air temperature Te and the outside air humidity He obtained at every predetermined time.

As described above, steps S2i and S3i
A control method capable of obtaining comfort is extracted. Further, a control method capable of reducing the electric power most is further extracted by S6i and S7i. Therefore, it is possible to control the air conditioner while maximizing power saving while ensuring comfort.

If it is not possible to set a predetermined room temperature for the discomfort index A in steps S60 and S70,
By operating the air conditioner at the rated capacity, it is possible to ensure the maximum comfort possible.

It is desirable to include a variety of control methods by including capacity control and intermittent operation as control methods, capacity control with different upper limit values, and intermittent operation with different control rates. . This is because it is easy to select a control method that achieves both power reduction and comfort.

FIG. 10 is a block diagram illustrating the configuration of an air conditioning system 300 to which the present invention can be applied. The air conditioning system 300 includes the weather information input unit 11 shown in FIG.
The weather data receiving unit 301 corresponding to the
(This corresponds to the weather data D1 in FIG. 1). Here, it is assumed that the meteorological data 101 also includes expected weather for one day. The air conditioning system 300 also includes a control determination unit 302, and performs a function corresponding to the weather information calculation unit 12, the feasible control list generation unit 13, and the execution control determination unit 14 illustrated in FIG. 1. For example, as illustrated, the databases 21 and 22 are also included in the control determination unit 302. The control determination unit 3 uses the control method D4 that is compatible with an index of the outside air condition generated based on the meteorological data 101 (for example, the discomfort index A) and has the highest reduction rate of power consumption.
Selected by 02. There is an expected change in the indicator of the condition of the outside air within a day, and the control method D is changed according to the change.
4 are selected in time series and stored in the database 304. As a result, the control method D4 selected in time series throughout the day takes the form of a control table and is stored in the database 30.
Stored in 4.

The air conditioning system 300 also includes a control table expansion unit 305 corresponding to the power saving control schedule creation unit 15 of FIG. According to the control table stored in the database 304, a power saving control schedule D5 for one day of the air conditioner 200 is created and stored in the database 306. The air conditioning system 300 also includes a control instruction unit 307, which gives a control instruction to the air conditioner 200 according to the power saving control schedule D5.

FIG. 11 is a block diagram illustrating a case where the air conditioning system 300 is divided into a remote monitoring center 300a and a local control system 300b. The remote monitoring center 300a includes a weather data receiving unit 301 and a control determining unit 302 having the functions described above, and a control table transmitting unit 303 that transmits the control table stored in the database 304 to the local control system 300b. ing.

Further, the on-site control system 300b has a control table receiving section 309 for receiving the control table transmitted from the remote monitoring center 300a and a control table expanding section 3
05 and a control instruction unit 307.

FIG. 12 is a flow chart illustrating the operations that can be executed in the air conditioning system 300 shown in FIG. In step S91, the meteorological data receiving unit refers to the meteorological data 101 including the prediction of one day. Then, in step S92, the control method D4 is obtained based on the discomfort index A including the prediction of the day. This corresponds to steps S1, S2i, S3i, S4, S5, S60 of FIG.
S70, S6i, S7i, and S8 are repeatedly executed for each discomfort index A that changes in one day. The result is step S9.
In 3, the control determination unit 302 stores it in the database 304. Control method D4 stored in database 304
Takes the form of a control table.

Thereafter, in step S94, the control table transmission unit 303 sends the control table to the local control system 3
00b. Then, in step S95, the control table receiving unit 309 receives the control table. In step S96, the control table expansion unit 305 creates the power saving control schedule D5, and the control instruction unit 307 drives the air conditioner 200. That is, the control is executed based on the control table.

Second Embodiment. FIG. 13 is a block diagram showing a configuration capable of executing this embodiment. The abnormality detection unit 51 inputs the current integrated power amount 41, which is the measured value of the integrated power amount, and the room temperature 42. Then, based on the information used for abnormality determination stored in the database 52, it is determined whether or not the power consumption is reduced as desired, and the result is transmitted to the alarm / abnormality detection screen 53.

The current integrated electric energy 41 and the room temperature 42 can be obtained from an air conditioner (not shown). For example, as the indoor temperature 42, the suction temperature of the indoor unit of the air conditioner can be adopted. Of course, a room temperature sensor may be provided separately from the air conditioner and the room temperature 42 may be obtained from the room temperature sensor.

Although a specific operation will be described later, when a control method for reducing power consumption is adopted for an air conditioner (not shown) by monitoring the alarm / abnormality detection screen 53, the operation is performed at any time. It is possible to confirm whether or not an appropriate operation is being performed.

FIG. 14 is a graph for explaining the operation of this embodiment. The graph need not be displayed on the alarm / abnormality detection screen 53, but may be displayed, of course. The horizontal axis represents time, and the vertical axis represents integrated electric energy. Here, the horizontal axis shows a predetermined period for managing the amount of electric power, and shows the period from the start to the end, for example, the period from the beginning of the year to the end of the year. The accumulation of electric energy has been started since the beginning of the year. A curve J1 shows an integrated amount of electric power when the electric power is not reduced. For example, an average value for several years of operation at the rated capacity is adopted. A curve J2 shows an ideal integrated electric energy when the electric power is reduced and functions as a target value of the integrated electric energy.

Current integrated electric energy 41 at present time Tx
The closer the value 41 (Tx) of is closer to the curve J2 than the curve J1, the more the desired power reduction is performed. For example, in the curve J2, the value taken by the current time point Tx is J2 (Tx)
And

[0062]

[Equation 2]

When the equation (2) is satisfied, the abnormality detecting section 51 determines that there is an abnormality in the setting of the control method or the transmission of the room temperature, and an alarm is displayed on the alarm / abnormality detecting screen 53. The value of the curve J2 and the value of δ1 can be stored in the database 52 as information used for abnormality determination.

The accumulation of electric energy is performed at any time, and it can be determined at any time whether or not the equation (2) is satisfied. Therefore, it can be determined at any time whether the desired power saving has been performed.

In the case of making the above determination, the accumulation of electric energy may be started from the beginning of the year, or the electric energy may be accumulated from the current time Tx by a predetermined period M. The predetermined period M can be, for example, one month.

[0066]

[Equation 3]

When the equation (3) is satisfied, the alarm is displayed on the alarm / abnormality detection screen 53. By storing the value of the curve J2 and the value of δ2 in the database 52 as information used for abnormality determination, the equation (3) can be calculated by the abnormality detection unit 51.

It should be noted that in order to realize the present embodiment, FIG.
Of the configurations shown in FIG. 3, the input of the room temperature 42 is not always necessary. Further, it can be realized in parallel with the first embodiment, but can also be realized independently. However, by realizing it in parallel with the first embodiment, it is possible to confirm the power saving by the technique adopted in the first embodiment.

Third Embodiment. As described in the first embodiment, the control method sets the room temperature to, for example, 20 to 28 ° C.
It is selected as one criterion whether or not the operation set during is possible. That is, if the adopted control method is adopted, a predetermined indoor environment should be obtained. Therefore the first
If the room temperature is not within the above range while adopting the technique of the embodiment, it can be determined that there is an abnormality in the setting of the control method or the transmission of the room temperature. This determination can be made at any time according to the frequency of updating the room temperature.

FIG. 15 is a graph for explaining the third embodiment of the present invention. The horizontal axis shows a predetermined period for managing the amount of electric power, and shows the period from the start to the end, for example, the period from the beginning of the year to the end of the year. The vertical axis shows the room temperature. When the indoor temperature is within the above-mentioned temperature range as shown by the graph N1, it is considered that an appropriate control method is adopted to operate the air conditioner. However, when the indoor temperature deviates from the above temperature range as shown by the graphs N2 and N3, the control method that enables the operation of setting the indoor temperature within the above temperature range should be adopted. It can be determined that there is an abnormality in the setting of or the transmission of the room temperature.

Such an operation can also be realized by the configuration shown in FIG. However, it is not necessary to input the integrated electric energy 41 at present, and it is sufficient if the database 52 stores the above-mentioned temperature range as information used for abnormality determination.

Fourth Embodiment. Both power saving and room temperature can be monitored. That is, it is possible to display the relationship between the integrated power amount and a predetermined indoor environment. This embodiment can also be realized in the configuration shown in FIG. FIG. 16 is a graph for explaining the fourth embodiment of the present invention, and illustrates the contents displayed on the alarm / abnormality detection screen 53. The horizontal axis shows the room temperature, and the vertical axis shows the value obtained by dividing the integrated electric energy by the target electric energy. In the graph, the rectangular area Y is defined by being surrounded by sides where the indoor temperatures are 20 ° C. and 28 ° C. and sides where the integrated electric energy / target electric energy is 0 and 1, respectively.

When the air conditioner is operating normally, the plot defined by the room temperature and the integrated electric energy / target electric energy should be within the rectangular area Y. Therefore, when plotted outside the rectangular area Y, it can be determined that there is an abnormality in the setting of the control method or the transmission of the room temperature. This determination can be made at any time according to the room temperature and the frequency of updating the integrated electric energy.

FIG. 17 is a graph for explaining the modification of the fourth embodiment of the present invention. The room temperature and the integrated electric energy / target electric energy are measured and updated every day, and the plots specified by these are classified into those of the previous day, those of the day before two, those of three days before, etc. To different display. Thereby, the history of the plot can also be visually confirmed.

In the above embodiment, the discomfort index A is used as an index indicating the condition of the outside air, but the enthalpy of the outside air or the like may be used. Moreover, although the temperature is used as an index indicating the state of the indoor environment, the indoor discomfort index and PMV (Predicted Mean) are also used.
an Vote (predicted average thermal sensation report) value can be used as well.

[0076]

According to the control method of the air conditioner of the first aspect of the present invention, the control method capable of obtaining the comfort can be extracted by the step (a). The control method that can reduce the power most is further extracted by step (b). Therefore, it is possible to control the air conditioner while maximizing power saving while ensuring comfort.

According to the air conditioner control method of the second aspect of the present invention, when the predetermined indoor environment cannot be set for the index indicating the condition of the outside air, the air conditioner is operated at the rated capacity. By doing so, ensure the maximum comfort possible.

According to the control method of the air conditioner of the third aspect of the present invention, the control methods are abundantly varied, and it is easy to select the control method that achieves both reduction of electric power and comfort.

According to the air conditioner control method of the fourth aspect of the present invention, it can be confirmed at any time whether or not an appropriate operation is being performed.

According to the air conditioner control method of the fifth aspect of the present invention, if the control method selected in step (a) is adopted, the predetermined indoor environment that should have been obtained is confirmed. By doing so, it can be determined that there is an abnormality in the setting of the control method or the transmission of the room temperature.

According to the air conditioner control method of the sixth aspect of the present invention, when the relationship is not plotted within a predetermined range, there is an abnormality in the setting of the control method or the transmission of the room temperature. Can be determined.

According to the air conditioner control method of the seventh aspect of the present invention, it is not necessary to separately provide a room temperature sensor.

According to the air conditioning system of the eighth aspect of the present invention, it is possible to realize an air conditioning system that maximizes power saving while ensuring comfort.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration capable of executing an operation according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a part of the operation of the first exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating the first embodiment of the present invention.

FIG. 4 is a graph illustrating the first embodiment of the present invention.

FIG. 5 is a graph illustrating the first embodiment of the present invention.

FIG. 6 is a flowchart showing a part of the operation of the first exemplary embodiment of the present invention.

FIG. 7 is a graph illustrating the first embodiment of the present invention.

FIG. 8 is a graph illustrating the first embodiment of the present invention.

FIG. 9 is a graph illustrating the first embodiment of the present invention.

FIG. 10 is a block diagram illustrating the configuration of an air conditioning system to which the present invention can be applied.

FIG. 11 is a block diagram illustrating the configuration of an air conditioning system to which the present invention can be applied.

12 is a flow chart illustrating the operation of the air conditioning system shown in FIG.

FIG. 13 is a block diagram showing a configuration capable of executing the second embodiment of the present invention.

FIG. 14 is a graph illustrating the operation of the second exemplary embodiment of the present invention.

FIG. 15 is a graph illustrating a third embodiment of the present invention.

FIG. 16 is a graph illustrating a fourth embodiment of the present invention.

FIG. 17 is a graph illustrating a modification of the fourth embodiment of the present invention.

[Explanation of symbols]

16 load 41 Current accumulated electric energy 200 air conditioner 300 air conditioning system 300a Remote monitoring center 300b Local control system 303 Control table transmitter 305 Control table expansion unit A discomfort index D1 weather data D2 outside air data D3 Executable control list D4 control method D5 Power saving control schedule Fi (A) Reduction rate He outside air humidity M predetermined period S2i, S3i, S6i, S7i steps T1-Tn control method Te outside air temperature Tx current time

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Satoshi Hashimoto             2 of 1000 Otani, Okamoto-cho, Kusatsu-shi, Shiga             Daikin System Solution Co., Ltd.             Within the Institute (72) Inventor Tetsuro Iwata             3-21, 3-21, Tarumi-cho, Suita City, Osaka Prefecture             Ikin Industry Co., Ltd. Esaka Building F-term (reference) 3L060 AA03 AA05 CC02 CC03 CC06                       CC08 CC10 DD01 DD02 EE01                       EE21                 3L061 BA07

Claims (20)

[Claims] 1. A plurality of mutually different control methods (T)
1 to Tn), a step (D2) in which a predetermined indoor environment can be set for the index (D2, A) indicating the condition of the outside air is selected (S2i, S3i), (b) the step (a) )), A step (D6) of maximizing the power consumption reduction rate (Fi (A)) is selected from the plurality of control methods selected in step S6i,
S7i), (c) Among the plurality of control methods, the step (b)
Generating a control schedule (D5) based on the one selected in 1.
Control method 6). 2. When none of the plurality of control methods (T1 to Tn) is selected in the step (a), instead of executing the steps (b) and (c), (d) rating The method of controlling an air conditioner according to claim 1, wherein the step of controlling the air conditioner (16) with a capability is performed. 3. The air conditioner control method according to claim 1, wherein the plurality of control methods (T1 to Tn) include capacity control and intermittent operation. 4. The control method for an air conditioner according to claim 1, wherein the plurality of control methods (T1 to Tn) include capacity control with mutually different upper limit values. 5. The control method for an air conditioner according to claim 1, wherein the plurality of control methods (T1 to Tn) include intermittent operation with mutually different control rates. 6. The air conditioner control method according to claim 1, wherein the index is a discomfort index (A). 7. The outside air temperature (Te) based on the discomfort index
The method for controlling an air conditioner according to claim 6, wherein the outside air humidity (He) is obtained every predetermined time. 8. The method for controlling an air conditioner according to claim 7, wherein the discomfort index is obtained at each predetermined time based on the outside air temperature and the outside air humidity. 9. The average value of the discomfort index obtained at each predetermined time is obtained as the discomfort index again.
A method for controlling an air conditioner according to. 10. The control method for an air conditioner according to claim 7, wherein the discomfort index is obtained using the maximum values of the outside air temperature and the outside air humidity obtained for each of the predetermined times in one day. 11. The control method for an air conditioner according to claim 7, wherein the discomfort index is obtained by using an average value of the outside air temperature and the outside air humidity obtained every predetermined time period. 12. The method according to claim 1, wherein the presence or absence of abnormality is detected based on a result of comparison between the measured value (41) of the integrated electric energy and the target value (J2). Air conditioner control method. 13. The method for controlling an air conditioner according to claim 12, wherein the integrated electric energy is integrated from the start of a predetermined period for managing the electric energy. 14. The integrated electric energy is the present time (Tx).
13. The method for controlling an air conditioner according to claim 12, wherein the integration is performed during a period that is a predetermined period (M) back from the above. 15. The method for controlling an air conditioner according to claim 1, wherein it is confirmed whether the predetermined indoor environment is obtained. 16. The control method for an air conditioner according to claim 1, wherein the relationship between the integrated electric energy and the predetermined indoor environment is displayed. 17. The method for controlling an air conditioner according to claim 16, wherein the relationship is displayed separately for each day. 18. The control method for an air conditioner according to claim 1, wherein a suction temperature of the air conditioner into the indoor unit is adopted as the predetermined indoor environment. 19. A plurality of mutually different control methods (T1 to T1).
The control method (D) in which a predetermined indoor environment can be set from Tn) to the index (D2, A) indicating the state of the outside air, and the power consumption reduction rate (Fi (A)) is maximized.
4) a control table creation unit (303) that creates a control table, and a control table expansion unit (30) that creates a control schedule of the air conditioner (200) based on the control table.
5) An air conditioning system (300) comprising: 20. A remote monitoring center (300a) and a local control system (300b), wherein the remote monitoring center includes the control table creating unit, and the local control system includes the control table expanding unit. The air conditioning system according to claim 19.