JP2003234164A - Output controlling method of heating system by alternate-current electric power, and heating system using this controlling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an output-controlling method of a heating system by AC power that aims at improvement of usage efficiency of electric power by distributing the peak power evenly, and the heating system using this output-controlling method. <P>SOLUTION: AC power, which heats two or more heaters, is distributed for every time-duration divided equally, and dispersed to a cycle pattern corresponding to the output rate, and averaged by dispersing so that the peak power of each group's cycle pattern may not overlap each other at a time. Moreover, the output control using communication is enabled to perform. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention distributes AC power for heating a plurality of heaters at every equally divided time,
Dispersed in a cycle pattern corresponding to the output ratio,
The peak power of the cycle pattern of each group is distributed and averaged so that they do not overlap at one time, and the efficiency of power usage is improved. Regarding heating system.

[0002]

2. Description of the Related Art When a plurality of heaters such as a halogen lamp heater, a nichrome wire heater, a far infrared lamp heater, and a sheath heater are operated by using AC power, in particular, a large number of heaters are operated, phase control is generally performed conventionally. It was done. Further, conventionally, when a large number of heaters are operated, the peak power is randomly dispersed by simply performing cycle control individually.

[0003]

However, even if the AC power is phase-controlled like the former, the power factor cannot be improved. Further, when the simple cycle control is individually performed as in the latter case, the peak powers are overlapped with each other to cause a large protrusion.

The present inventor has found that the above-mentioned two prior arts are insufficient for further increasing the utilization efficiency of AC power when a plurality of heaters, particularly a large number of heaters, are used. We thought that a new technology that can realize highly efficient use of electric power is necessary, and tried to study the new technology earnestly. As a result, we finally completed the present invention, and decided to file this patent.

The present invention, which has been completed through the above-mentioned circumstances, has an object to solve the above-mentioned problems. Specifically, AC power for heating a plurality of heaters is
Provided is an output control method for a heating system by an alternating current, which is distributed evenly for each time and is distributed into a cycle pattern corresponding to an output ratio, that is, a utilization ratio, so as to improve utilization efficiency of supply power. This is one of the purposes.

[0006] Further, the peak power of the cycle pattern of the AC power distributed to the plurality of groups is dispersed in a constant pattern so as not to overlap with each other, and each load power is averaged. To use
It is also one of the purposes to provide an output control method for a heating system using an alternating current.

One of the purposes is to perform these output controls by remote control by communication according to a control program stored in a central processing unit such as a personal computer.

Further, these output control methods are instantaneously applied not only to various electric heaters which have been used in the past, but also to a heating system using a halogen lamp heater which responds at high speed. It is also an object of the present invention to provide a method for controlling a heating system using a halogen lamp heater, since it can sufficiently follow control.
I will list them as one.

Further, it is also one of the purposes to provide a heating system using the above control methods.

[0010]

An output control method for a heating system using AC power according to claim 1 of the present invention, which is proposed to achieve the above object, is a heating method for heating a plurality of heaters with AC power. In the system, the method is characterized by a method in which AC power is distributed evenly for each divided time and dispersed in a cycle pattern corresponding to the output ratio.

As the heater used in the output control method of the heating system according to the present invention, various conventionally known heaters such as nichrome wire heaters, far infrared lamp heaters and sheath heaters are used. "Distribution of AC power evenly divided by time" described here means that, for example, 100 cycles of 2 seconds of AC power (corresponding to 1.66 seconds at 60 Hz) are supplied. , The time period of 2 seconds is divided into 1/10, that is, every 0.2 seconds is divided into 10 steps, and the steps 0, 1,
This means that the starting point of the cycle pattern of AC power is located at each of positions 2, 3, ... Of course, the present invention is not limited to the case where the time zone is divided into 10s every 0.2 seconds, and may be, for example, evenly divided into 5, or in the case of dividing every 1 second. May be When dividing the time zone, do you use a heater that responds quickly?
Alternatively, whether a heater with a slow response is used has a great influence, and when a heater with a slow response is provided, the time zone is largely divided. The above-mentioned "dispersion in a cycle pattern corresponding to the output ratio" means that when the supplied AC power is, for example, 60% output, 6 cycles of 10 cycles are continuous from each step, and the last of this cycle. From the position of to the next step, it means that the cycle pattern that appears in a state where no power is used is repeated. In addition, for example, when there is a fraction such as 61% output, for example, the total of the fractions may be incorporated in the first time zone divided into 10.

According to a second aspect of the present invention described below, an output control method of a heating system using AC power is divided into a plurality of heaters into a plurality of groups, and the AC power flowing in each group is defined in the first aspect. Using the described output control method, the peak power of the cycle pattern of each group is dispersed in a fixed pattern in which the intervals are synchronized so as not to overlap at one time, and the peak power is averaged. .

Also in the second aspect, the above-mentioned known heater is used. In this claim 2, the load power is
The intervals are distributed in a fixed pattern that is synchronized, and it is also checked at each division step whether a subtle error has occurred in this pattern.
The distribution is extremely accurate.

According to a third aspect of the present invention, there is provided an output control method for a heating system using AC power, the personal computer or the like having a control program stored in the output control of AC power in any one of the control methods described above. This is a method of performing communication by the central processing unit of.

When the output control of the AC power is performed according to the control program stored in the terminal device such as the personal computer as described above, the output control can be freely performed and the system can be centrally managed. Further, even when the number of heaters is changed or the capacity is changed, it is possible to deal with it by rewriting, adding or deleting the control program. In particular, if this output control is performed by communication, remote control can be easily performed.

According to the output control method of the heating system by AC power described in claim 4 of the present invention described below, a halogen lamp heater is used as a heater constituting the heating system.

The halogen lamp heater has a high output,
It is known that it is a highly efficient thermal energy source that is highly controllable because of its high-speed response, clean, safe, and can be miniaturized. Alternatively, it has been proposed to use this halogen lamp in the output control method of the heating system by the AC power described in 2. By doing this, it is possible to respond by a quick reaction in which the above-mentioned time zone is divided into smaller parts.

An AC power heating system output control method according to any one of claims 1 to 4 is used for the AC power heating system according to claim 5 of the present invention described below. It is characterized by

The present inventor claims that the scope of the present invention is not limited to the output control method of each heating system described above, but extends to a heating system using any of these output control methods. Specified in.

The inventor of the present invention also provides a plurality of heating systems so that the output control of each heating system can be remotely controlled from any of the central processing units of the heating systems. To aim.

[0021]

The objects and configurations of the present invention are as described above. Hereinafter, embodiments for embodying the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a state in which the AC power for executing the output control of the heating system according to the present invention is distributed evenly at each divided time and dispersed in a cycle pattern corresponding to the output ratio. Moreover, in FIG. 1, as an example, 2 seconds, 100 cycles (1.6 Hz at 60 Hz)
AC power (corresponding to 6 seconds) is divided into even 1/10 time zones, and the output is 60%.

As shown in FIG. 1, if a time period T of 2 seconds and 100 cycles is equally divided into 10s every 0.2 seconds, a step (S0) is performed in each divided time period (t1 to t10). , S1 to S10), a pattern of 10 cycles of AC power starting from each position is formed. However, as described above, in the case of 60% output, each step (S
0, S1 to S10), each 6 of AC power starting from each position
It appears as a cycle pattern, and the time zone (m1 to m10) from the end of the sixth cycle of each divided time zone (t1 to t10) to the step (S1 to S10) of the next divided time zone.
In m10), the cycle pattern that appears as a pattern that does not use electric power is repeated. As described above, when the cycle pattern uses the AC power according to the output ratio, the power factor is improved to 100% as compared with the case of the phase control. In the case of dividing the time zone T in this way, increasing the time zone T improves the decomposition ability. In other words, how many times the time period T is divided and decomposed is selected depending on whether or not the heater having a fast response is used. When the heater having a slow response is used, the time period T is divided.
May be increased.

FIG. 2 shows 3 data of (A), (B) and (C) based on the data when a large number of heaters are divided into groups.
Fig. 7 shows a cycle pattern in which the peak power of one group is distributed. In the embodiment shown in FIG. 2, as an example, the time zone T of 100 cycles is equally divided into 10 and the divided time zones (t1 to t10) are set to 0.2 seconds and 1 cycle, respectively. It shows what was done. When a large number of heaters are used in the output control method for the heating system of the present invention, each heater is divided into a plurality of groups, for example, three groups, and the peak powers of the respective groups are dispersed so as not to overlap. The present invention does not directly determine the cycle pattern in which the load power is dispersed in the time zone divided into 1/10 in this way, but from the start position S0 of the first time zone into this divided time zone. The cycle pattern of each group is determined based on the data of the three groups in the time zone (t0) one cycle before that corresponding to. By doing so, it is possible to obtain an output pattern that exactly matches the load power of each group from step s1 of the first divided time period t1.
By checking that there is no error in each of the subsequent steps (S2 to S10), an accurate cycle pattern corresponding to each time zone (t1 to t10) can be obtained.

In FIG. 3, as an example, 2 seconds, 100
Each divided time zone (t1
To t10), one heater has a power consumption of 10 kW, a control output of 60% (A) group, a control output of 50% (B) group, and a control output of 40% (A). It is divided into groups of C) and the peak power (p ...) Of the AC power in each group is distributed in a pattern synchronized at a certain fixed interval so as not to overlap at one time. More specifically, in the group (A), when the first time period (t1) is evenly divided into 10 (S0,
Six peak powers (p ...) Starting from the position of steps S1 to S5) are located, and thereafter, in the group (A), this pattern is located in each divided time zone (t2 to t10). On the other hand, in the group (B), when the first time period (t1) is evenly divided into 10 (S
0, S6 to s9), five peak powers (p ...) Are located at the position of each step, and thereafter, in the group (B),
This pattern is located in each divided time zone (t2 to t10). Next, in the group of (C), (S2, S3, S) when the first time period (t1) is divided into 10 equal parts.
Four peak powers (p ...) Are located at positions (4, S5), and thereafter, even in the group (C), at each divided time period (t).
2 to t10), this pattern is located. In the present embodiment, the peak powers (p ..) of the groups (A), (B), and (C) are dispersed in this way so that the three load powers (p. I tried not to become.
As a result, peak power (p) protrusions are avoided and averaged. Of course, the dispersion pattern described above is an example,
Other distribution patterns may be used. Also, regarding the number of groups to be divided, the specifications of the heating system, especially,
The number of heaters to be used, capacity, etc. are large factors to determine, so there is no limitation.

FIG. 3 is a block diagram showing a heating system provided with such a control method. The heating system shown in FIG. 3 has heater groups 2, 3, which are divided into first, second and third groups. 4 is connected in parallel to the processing device 1 to form a driving element 5, which operates by obtaining AC power. The heater groups 2, 3, 4 and the processing device 1 may be separately configured. The number of each heater group 3, 4, 5 is not particularly limited. In this processing device 1, each heater group 2, 3,
4 Load and control amount signals (Ax,
Bx, Cx) are sent according to a control program stored in the central processing unit 6. This control program is a program that executes the output control method described above. As a result, each group (A,
The control of the heater groups 2, 3, 4 of (B, C) is fed back and further fed forward. The central processing unit 6 and the processing unit 1 are communicatively connected by a communication line L so that the central processing unit can be remotely controlled. In addition, the above-mentioned processing apparatus 1 can be installed by separately adding a heating system or by installing a plurality of heating apparatuses at separate locations.
It is possible to add more, and by doing so, each heating system can be centrally managed. 12 ... 1n indicates the added processing device, and the number of the added processing devices is not limited. The central processing unit 6 is preferably a personal computer, but may be a large computer, a dedicated terminal, or a mobile terminal, for example.
In particular, if a personal computer and a mobile terminal are used together, whether or not the control is accurately executed can be known from the outside. The communication line L corresponds to a telephone line, a wired line such as a dedicated line, or a wireless communication line. The heating system of this embodiment having such a configuration is basically used as one heating system. However, as shown by a broken line in FIG. 3, the heating system is installed in each of a plurality of distant areas. , The central processing units 6 and 6 of the heating system are connected by communication to control the output of the central processing unit 6 of one of the heating systems to the other heating unit,
It is also possible that the peak powers of the heating devices do not overlap.

[0027]

The output control method for a heating system using AC power according to the present invention described above has the following effects. First, in a heating system that heats a plurality of heaters with AC power, the AC power could be distributed evenly at each divided time and dispersed in a cycle pattern corresponding to the output ratio. As a result, it has become possible to significantly improve the utilization efficiency of the supplied power as compared with the conventional heating system.

Secondly, the AC power distributed to the plurality of groups is dispersed in a fixed pattern with intervals so that the peak powers do not overlap each other, and the load powers are averaged to obtain a cycle pattern. The peak electric power has disappeared, and it has become possible to economically complete electric power facilities and contracted electric power.

Thirdly, the output control of the AC power can be performed by communication with a central processing unit such as a personal computer in which a control program is stored. As a result, the output control can be performed by remote control. , The system can now be centrally managed. Moreover, even when the number of heaters or the capacity is changed, the control program can be rewritten, added, or deleted to freely deal with it.

Fourth, by using a halogen lamp heater for each heater that constitutes the heating system, the halogen lamp heater has the characteristics of high density, high speed response, and excellent controllability and cleanliness. It is safe and can be miniaturized, and it is possible to maximize the characteristics of a highly efficient heat energy source, and in particular, it is possible to respond to quick response by dividing the time zone into small parts.

Fifth, since the heating system is provided with the output control method of the heating system by the AC power that has various effects as described above, products having significantly higher performance than the conventional heating device are supplied to the market. It became possible to do it.

Sixth, by providing a plurality of heating systems having such various effects in a remote area and connecting the central processing units of each heating system by communication, one heating system is heated. It has become possible to control the output of the other heating system from the central processing unit of the system or to control the output of the entire heating system so that the peak powers of the heating systems do not overlap.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which AC power for executing output control of a heating system according to the present invention is distributed evenly at time intervals and dispersed in a cycle pattern corresponding to an output ratio. Is.

FIG. 2 is a diagram showing a cycle pattern in which peak powers of three groups are dispersed based on data when a large number of heaters are divided into groups.

FIG. 3 is a block diagram showing a heating system provided with the control method of the present invention.

[Explanation of symbols]

1 processor 2, 3, 4 heater group 5 drive elements 6 Central processing unit L communication line Group A, B, C T 2 seconds, time period of 100 cycles S1-S10 steps t1 to t10 division time zone m1 to m10 hours when power supply is not used p Peak power

Claims (6)

[Claims] 1. A heating system for heating a plurality of heaters with alternating current power, wherein the alternating current power is evenly divided and distributed in a cycle pattern corresponding to an output ratio. Output control method for heating system. 2. A plurality of heaters are divided into a plurality of groups,
The AC power flowing through each group is distributed by a constant pattern in which the peak powers of the cycle patterns of the groups are not overlapped at once by using the output control method according to claim 1, and the peak power is distributed. A method of controlling output of a heating system by AC power, characterized by averaging. 3. The output control method for a heating system according to claim 1, wherein the output control of the AC power is performed by communication with a central processing unit such as a personal computer in which a control program is stored. 4. The output control method for a heating system using AC power according to claim 1, wherein a halogen lamp heater is used for each heater. 5. A heating system using the output control method for a heating system using AC power according to any one of claims 1 to 4. 6. A plurality of heating systems according to claim 5 are installed at distant places, a central processing unit of each heating system is connected by a communication line, and each central processing unit of each heating system is connected to each central processing unit. A heating system, characterized in that the heating systems can be controlled and the peak powers of the heating systems do not overlap.