JP2020068592A - Arithmetic processing unit - Google Patents

Abstract

To provide an arithmetic processing unit that receives power supply by using multiple power sources in combination, internally perform autonomous arithmetic processing, and suppresses cost associated with power consumption as much as possible.SOLUTION: An arithmetic processing unit used as one of power consuming device groups that receive power supply by using a commercial power system and an in-house power source in combination includes an arithmetic processing unit capable of adjusting the arithmetic capacity, a power value acquisition unit that acquires values related to power supply, and a capacity setting unit that sets the arithmetic capacity of the arithmetic processing unit on the basis of the value acquired by the power value acquisition unit. The capacity setting unit is configured to increase the arithmetic capacity when the value (S1) acquired by the power value acquisition unit satisfies a predetermined low cost condition (S5), and not to increase the arithmetic capacity (S6, S7) when the value does not satisfy the predetermined low cost condition. The arithmetic processing unit internally performs autonomous arithmetic processing for a specific purpose within the arithmetic capacity set by the capacity setting unit.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an arithmetic processing device configured to perform arithmetic processing for a specific purpose by internal autonomy, not based on a direct operation of a user.

  Conventionally, an arithmetic processing device has been used to perform arithmetic processing for various specific purposes. In some cases, the user does not directly operate the arithmetic processing device, but the arithmetic processing is performed by the internal autonomy of the arithmetic processing device. As an operation suitable for such operation processing, for example, mining in virtual currency can be mentioned. Since the power is naturally consumed when the arithmetic processing is performed by the arithmetic processing device, the electric power is supplied from the electric power source such as the commercial electric power system. In general, it is not only the arithmetic processing unit that receives power from the power source. A large number of various electric devices as well as the arithmetic processing device are supplied with electric power from the same electric power source.

  Patent Literature 1 can be cited as a technique for controlling the power demand in such a power supply mode. In the technology of the document (power control device), the electric equipment group is divided into controllable equipment and equipment that is difficult to control. In addition to setting the upper limit of electric energy for the entire system, evaluation functions and differential equations are set for each controllable device. In this way, the electric energy of the controllable device is controlled (claim 1 of the same document).

Japanese Patent No. 6296251

  However, the above-mentioned conventional technique has the following problems. It does not deal with fluctuations in power costs or buying and selling surplus power. For this reason, it is difficult to control the power consumption by the above-mentioned conventional technique when using a sub power source such as cogeneration power generation or solar power generation together with a commercial power system. In particular, when the above-mentioned auxiliary power source is provided, increasing the power consumption may rather increase the economic advantage. This is because some electric devices, such as arithmetic processing devices, can generate economic value by operating.

  In addition, the power cost is not always constant, and it varies depending on the time of day due to various factors even during the day. Further, when the above-mentioned auxiliary power source is provided, the apparent power cost varies depending on the power usage amount, for example, the power can be cheaply used within the range of the power generation amount of the solar power generation. However, control that increases the power consumption of electrical equipment seems to be against economic rationality. Furthermore, the complicated situation in which a secondary power source is installed has not been so widespread since the past. Therefore, in the above-mentioned conventional technique, it is difficult to control the arithmetic processing unit when the power cost fluctuates due to various factors.

  The present invention has been made to solve the problems of the above-mentioned conventional techniques. That is, it is an object of the invention to provide an arithmetic processing unit that receives electric power by using a plurality of power sources in combination and performs internal autonomous arithmetic processing and that suppresses costs associated with power consumption as much as possible. .

  An arithmetic processing device according to one aspect of the present invention is a device that is used as one of a group of power consuming devices that receive power from a power source that is used in combination with a commercial power system and a private power generation source, and that performs arithmetic processing. An arithmetic processing unit capable of performing arithmetic processing and adjusting the arithmetic capacity, an electric power value acquisition unit that acquires a value related to power supply from a power source, and an arithmetic processing unit based on the value acquired by the electric power value acquisition unit And a capacity setting unit that sets the calculation capacity of the power value. The capacity setting unit is configured to calculate the calculation capacity when the low cost condition indicating that the power cost is low is predetermined for the value acquired by the power value acquisition unit. Is set so that the calculation capacity is not increased when the low cost condition is not satisfied, and the calculation processing section is within the range of the calculation capacity set by the capacity setting section. Arithmetic processing for a particular purpose, those which are configured to perform an internal self not based on direct manipulation user.

  In the arithmetic processing device according to the above aspect, the power value acquisition unit acquires a value related to power supply from the power source. Then, the capability setting unit sets the computation capability of the computation processing unit based on the acquired value. Specifically, in the capacity setting unit, a low cost condition indicating that the power cost is low is predetermined for the value acquired by the power value acquisition unit. When the value acquired by the power value acquisition unit corresponds to the low cost condition, the calculation capacity of the calculation processing unit is increased. When the low cost condition is not satisfied, the calculation capacity is not increased. Then, the arithmetic processing unit performs the arithmetic processing for a specific purpose within the range of the arithmetic power set by the ability setting unit by the internal autonomy, not based on the direct operation of the user. As a result, the calculation processing for a specific purpose is performed while suppressing the power cost for the calculation for the specific purpose.

  In the arithmetic processing device of the above aspect, the value acquired by the power value acquisition unit further includes the power generation amount of the solar power generation when the private power generation source includes the solar power generation, and is set in the capability setting unit. It is desirable that low-cost conditions include that the amount of solar power generation is greater than a predetermined value. This is because when the amount of power generated by solar power generation is plentiful, the power cost is low, so it is preferable to intensively perform arithmetic processing for a specific purpose.

  In the arithmetic processing device of any of the above aspects, the value acquired by the power value acquisition unit further includes the reverse flow rate from the private power generation source to the commercial power system and the power generation amount of the private power generation source, and the capacity setting is performed. It is desirable that the low-cost conditions specified in the section include that the reverse flow rate is greater than a predetermined value and that the amount of power generated by the private power generation source is less than the predetermined value. The large reverse flow rate means that the reverse flow rate can be reduced and used for calculation processing for a specific purpose, so the power cost is low. In addition, the fact that the amount of power generated by the private power generation source is small means that the amount of power generated by the private power generation source can be increased to increase power supply to the arithmetic processing device without increasing power reception from the commercial power grid. For this reason, the power cost is still low.

  In the mode using the reverse flow rate and the amount of in-house power generation, the value acquired by the power value acquisition unit further includes the amount of power received from the commercial power system, and the capacity setting unit, when the low cost condition is not satisfied, When the amount of power received exceeds the upper limit value set in advance, the computing capacity is set to zero, and when the amount of received power is less than or equal to the upper limit value and exceeds a predetermined normal value that is less than the upper limit value, the computing power is reduced It is more desirable to leave the computing capacity as it is when the value is less than the normal value. As described above, by setting the low cost condition for the received power itself and providing the two-level judgment reference values, it is possible to perform fine control including the stop of the arithmetic processing for a specific purpose.

  In any of the modes using the reverse flow rate and the private power generation amount, or the value acquired by the power value acquisition unit includes the power generation amount of the gas cogeneration device when the private power generation source includes the gas cogeneration device, It is also desirable that the amount of power generated by the private power generation source under the low-cost conditions specified in the capacity setting unit is the amount of power generated by the gas cogeneration system. By effectively utilizing the power generation capacity of the gas cogeneration system, it is possible to perform arithmetic processing for a specific purpose without increasing the amount of power received from the commercial power system as much as possible.

  According to this configuration, there is provided an arithmetic processing device that receives electric power by using a plurality of power sources in combination, performs internal autonomous arithmetic processing, and suppresses costs associated with power consumption as much as possible.

It is a schematic diagram which shows the structure of the power consumption system concerning embodiment. It is a block diagram which shows the structure of the arithmetic processing unit which concerns on embodiment. It is a flow chart which shows the contents of control in the 1st example of use. It is a flowchart which shows the control content in the 2nd example of use. It is a flowchart which shows the control content in the 3rd example of use.

  Hereinafter, embodiments embodying the present invention will be described in detail with reference to the accompanying drawings. This embodiment embodies the present invention as an arithmetic processing unit 1 used in the system shown in FIG. First, the system of FIG. 1 will be described. The system of FIG. 1 is a power consumption system that is installed in a general house and is configured by a power source unit 2 and a power consumption device group 3. The arithmetic processing unit 1 of this embodiment is included in the power consuming equipment group 3.

  The power source unit 2 is a unit that supplies the power E to the power consuming device group 3. The electric power source unit 2 receives electric power from the commercial electric power system 4 and also performs private power generation. The power source unit 2 has a solar power generation device 5 and a gas cogeneration device (hereinafter, “CGS”) 6 as the equipment for the private power generation. The CGS 6 is a device that performs both power generation and hot water supply using gas fuel.

  The power source unit 2 is further provided with a power receiving power meter 7, a solar power generation power meter 8, and a CGS power meter 9. The received power meter 7 outputs the power value received from the commercial power system 4. The photovoltaic power meter 8 outputs the power value generated by the photovoltaic power generator 5. The CGS power meter 9 outputs the power value generated by the CGS 6. Of these, the output value of the received power meter 7 may be negative. This is when the generated power of the solar power generation device 5 and the CGS 6 (mainly the solar power generation device 5) exceeds the total power demand of the power consuming equipment group 3 and enters the reverse power flow state.

  Next, the arithmetic processing unit 1 will be described with reference to FIG. As shown in FIG. 2, the arithmetic processing unit 1 is provided with an arithmetic processing unit 10, a power value acquisition unit 11, and a capacity setting unit 12. The arithmetic processing unit 10 is a unit that executes arithmetic processing in the arithmetic processing device 1. The arithmetic processing unit 10 in the present embodiment is capable of adjusting the arithmetic capacity. The power value acquisition unit 11 is a unit that acquires values regarding the power reception status and the power generation status from the power source unit 2. Specifically, the respective output values are acquired from the received power meter 7, the photovoltaic power meter 8, and the CGS power meter 9. The capacity setting unit 12 is a unit that sets the arithmetic capacity of the arithmetic processing unit 10. That is, the operating capacity of the arithmetic processing unit 10 is set by adjusting the operating frequency of the arithmetic processing unit 10 or the voltage applied to the arithmetic processing unit 10 as the operating voltage. Details will be described later. Of course, the arithmetic processing unit 1 also operates with the electric power E supplied from the electric power source unit 2.

  The arithmetic processing unit 1 is connected to the public line 13. The processing device 1 can further participate in the block chain network 14 via the public line 13. As a result, in the arithmetic processing unit 1, the arithmetic processing unit 10 can perform the mining operation of virtual currency. The mining operation in the arithmetic processing device 1 is performed not by the user directly operating the arithmetic processing device 1 but by the internal autonomy. However, it is possible for the user to perform an operation on the arithmetic processing unit 1 for any setting regarding the execution of the mining arithmetic. It is also possible for the user to operate the arithmetic processing unit 1 to perform arithmetic processing different from the mining arithmetic.

  The arithmetic processing unit 1 can generate economic value by performing arithmetic processing. Therefore, if the economic value produced exceeds the electricity cost, it is desirable to maximize the computing capacity. By the way, virtual currency mining produces economic value, but it is not so high value. Therefore, the economic value obtained cannot exceed the power cost unless the power cost is below a certain level by utilizing the solar power generation device 5 and the CGS 6. Therefore, in the arithmetic processing device 1, the power cost generated for the mining calculation is made as low as possible. That is, the execution of mining operations is concentrated in a time period when the power cost is as low as possible.

  By the way, the cause of the difference in electricity cost per hour is not limited to that, which includes fixed hours such as midnight discounts. As shown in FIG. 1, the system of the present embodiment is provided with private power generation equipment such as the photovoltaic power generators 5 and CGS6, and therefore the operating status thereof also causes a difference in power cost. In particular, with regard to the solar power generation device 5, it can be said that the cost at the time of power generation is virtually zero. Therefore, in the present embodiment, the state of the power source unit 2 is grasped by the electric power value acquisition unit 11 to determine whether or not the present time is in a low power cost time zone. In the low power cost time zone, the computing capacity of the arithmetic processing unit 10 is increased to intensively perform the mining operation. On the contrary, in a time period when the power cost is high, the calculation capacity of the calculation processing unit 10 is lowered to suppress the execution of the mining calculation. By doing so, the mining calculation of the required calculation amount is executed, and the power cost generated thereby is minimized.

  Therefore, in the capacity setting unit 12 of the arithmetic processing device 1 of the present embodiment, low cost conditions are predetermined for the various values acquired by the power value acquisition unit 11. The low cost condition is a condition for determining whether or not the current value is in a low power cost time zone with respect to the various values. When the low cost condition is satisfied, it can be determined that the time is now when the power cost is low. The low cost conditions set in the capability setting unit 12 of this embodiment include the following.

  First, the amount of power generated by the photovoltaic power generator 5 is large. This is because there is no need to purchase power from the commercial power grid 4 in order to consume the power generated by the solar power generation device 5 in the power consumption device group 3. On the other hand, the amount of power generated by the solar power generation device 5 is limited by the time of day that can be obtained, and also depends on the weather of the day. Therefore, the amount of power generated by the photovoltaic power generator 5 cannot be known unless the output value of the photovoltaic power meter 8 is actually seen. Specifically, a reference value is preset for the output value of the photovoltaic power meter 8. When the output value of the photovoltaic power meter 8 exceeds the reference value, it means that the low cost condition is satisfied. When the output value of the photovoltaic power meter 8 is less than the reference value, it means that the low cost condition is not satisfied.

  Secondly, the reverse power to the commercial power system 4 is large. When the reverse flow power to the commercial power system 4 is large, the decrease of the reverse flow power is prioritized even if the power consumption in the power consuming device group 3 is increased. Therefore, power purchase from the commercial power grid 4 does not increase unless reverse power becomes zero. In particular, when the purchase price of reverse-current power by the power company (operator of the commercial power system 4) is decreasing, the merit of reverse-flowing the excess power generated by private power generation is small, so it is consumed as much as possible. It is better. Note that the reverse tide power generation source may be either the solar power generation device 5 or the CGS 6, but is mainly the solar power generation device 5. This is because it is difficult to intentionally reduce the amount of power generated by the solar power generation device 5 when the amount of power generation is large.

  The reverse power supplied to the commercial power system 4 appears as a negative output value of the received power meter 7. Therefore, when the output value of the received power meter 7 is negative and its absolute value is large, the reverse power is large. Specifically, again, the reference value is set in advance for the value of reverse flow power. When the reverse power exceeds the reference value, it means that the low cost condition is satisfied. When the reverse flow power is below the reference value, it means that the low cost condition is not satisfied.

  Thirdly, the amount of power generated by the CGS 6 is small. When the power generation amount of the CGS 6 is small, even if the power consumption of the power consumption device group 3 is increased, it can be dealt with by increasing the power generation amount of the CGS 6. Therefore, power purchase from the commercial power grid 4 does not increase within the power generation capacity of the CGS 6. In general, the gas bill for operating the CGS 6 is lower than the bill for purchasing the power from the commercial power grid 4, and therefore the merit of utilizing the power generation capacity of the CGS 6 is great. As for the power generation amount of CGS6, a reference value is set in advance, as in the former two cases. However, the direction is opposite. When the power generation amount of the CGS 6 is below the reference value, it means that the low cost condition is satisfied. When the power generation amount of the CGS 6 is the reference value or more, it means that the low cost condition is not satisfied. In addition to the small power generation amount of the CGS 6, a condition that the hot water storage tank of the CGS 6 is not full may be added. This can further enhance the effect of reducing the power cost.

  Fourth, the received power itself from the commercial power system 4 can be used as a low cost condition. Needless to say, small size is a requirement for satisfying low cost conditions. The small amount of received power means that there is a high possibility that the unit price of received power is low, such as the late-night charge. The received power from the commercial power system 4 appears as a positive output value of the received power meter 7. Of course, specifically, the standard value is also set in advance for this. When the received power does not reach the reference value, it means that the low cost condition is met. If the received power is above the reference value, it means that the low cost condition is not satisfied.

  The capability setting unit 12 basically increases the computing capability of the computation processing unit 10 when the above low cost condition is satisfied. On the contrary, when the low cost condition is not satisfied, the computing capacity is reduced. The calculation of the calculation processing unit 10 is naturally performed within the set calculation capacity. As a result, mining operations are intensively performed during the time when the power cost is low and suppressed during the time when the power cost is high. As a result, the power cost generated by executing the mining operation is suppressed. It should be noted that suppressing the execution of the mining operation may include stopping the execution. The “reference values” under the above conditions are independent of each other.

  In the above, four types of low cost conditions are mentioned. The computing capacity may be set by using all of them, or only a part of them may be used. Hereinafter, three practical examples of low cost conditions will be described.

[First usage example: Use of CGS 6 power generation and reverse power flow to commercial power grid 4]
In this usage example, the output values of the incoming power meter 7 and the CGS power meter 9 are used. The contents of control in this usage example are shown in FIG. In the flow of FIG. 3, first, the output values of the CGS power meter 9 and the received power meter 7 are acquired (S1). Next, it is determined whether or not the power generation amount of the CGS 6 (output value of the CGS wattmeter 9) is less than the reference value (S2). If the determination in S2 is No, it is determined whether or not the received power from the commercial power system 4 (output value of the received power meter 7) is negative (S3). If the determination in S3 is Yes, it means that the current state is the reverse tide. Therefore, it is determined whether or not the reverse power (absolute value of the negative output value of the received power meter 7) is less than or equal to the reference value (S4).

  In the above, if the determination of S2 is Yes or the determination of S4 is No, the computing capacity is increased (S5). This is because at least one of the two types of low cost conditions is satisfied, and the mining operation should be intensively performed. On the other hand, if the determination in S3 is No, the computing capacity is reduced (S6). This is because neither of the two types of low cost conditions is satisfied, and the execution of mining operations should be suppressed. If the determination in S4 is Yes, the computing capacity is left unchanged (S7).

[Second usage example: In addition to the first usage example, the power received from the commercial power grid 4 is also used]
In this usage example as well, the output values of the received power meter 7 and the CGS power meter 9 are used. FIG. 4 shows the contents of control in this usage example. The flow of FIG. 4 is obtained by adding steps S8 to S10 to the part of (S3: No) → (S6) in the flow of FIG. 3 described above. Therefore, repeated description of the same parts as in FIG. 3 will be omitted, and only the added parts will be described here. In this example of use, two levels of an upper limit value and a normal value smaller than that are preset as reference values for the power received from the commercial power system 4.

  If the determination in S3 is No, it means that the power is currently being received from the commercial power system 4 instead of the reverse power state. This received power is for supplying the power demand of the entire power consuming equipment group 3 in FIG. 1, but includes the power from the arithmetic processing unit 1. In the flow of FIG. 4, in this case, it is determined whether or not the positive received power (the output value of the received power meter 7 itself) is less than the upper limit value, instead of immediately proceeding to S6 (S8). If the determination in S8 is Yes, it is further determined whether the received power is less than the normal value (S9).

  In the above, if the determination in S8 is No, the computing capacity is set to zero (S10). That is, the mining calculation is stopped. This is because the amount of received power is large, above the upper limit, and there is a risk of exceeding the regulated current value due to a contract with a power company. Therefore, the calculation is stopped in order to reduce the received power as much as possible and to prevent damage to the calculation processing device 1 due to power cutoff due to exceeding the regulated current value. Further, in this situation, the low-cost power generation capacity such as the solar power generation device 5 and the CGS 6 has already been used to the maximum extent, so a large amount of received power from the commercial power system 4 which is the most expensive power is used. Is. Therefore, it is not necessary to force the mining operation.

  If the determination in S9 is No, the calculation capability is reduced, although the calculation is not stopped (S6). In this case, although the received power is not as high as the upper limit, it is relatively high, above the normal value. For this reason, the most expensive commercial power accounts for a large proportion of the power used. For this reason, it is not necessary to intensively perform the mining calculation because the power cost is high. If the determination in S9 is Yes, the computing capacity is left unchanged (S7). This is because the amount of power received is less than the normal value, so the low-cost power generation capacity such as the photovoltaic power generators 5 and CGS 6 is used at a sufficiently high rate, and it can be said that the power cost is within the allowable range.

[Third use example: Only the power generation amount of the photovoltaic power generator 5 is used]
In this usage example, only the output value of the photovoltaic power meter 8 is used. The contents of control in this use example are shown in FIG. In the flow of FIG. 5, first, the output value of the photovoltaic power generator 8 is acquired (S11). Next, it is determined whether the power generation amount of the photovoltaic power generator 5 (output value of the photovoltaic power generator 8) is less than or equal to the reference value (S12).

  If the determination in S12 is No, the computing capacity is increased (S13). This is because there is plenty of zero-cost electricity generated by solar power generation, and it is in a situation where mining calculations should be concentrated. On the other hand, if the determination in S12 is Yes, the computing capacity is reduced (S14). This is because the amount of power generated by photovoltaic power generation is not sufficient, and the power required to execute the mining calculation needs to be covered by the power received from the commercial power system 4.

  Each of the flowcharts shown in the first to third use examples is repeatedly executed at appropriate time intervals (for example, about 1 minute to 10 minutes). As a result, a certain amount of mining calculation is performed as a total of one day while the calculation capacity of the calculation processing unit 10 is adjusted as needed according to the situation of the power source unit 2 in FIG.

  In the first usage example (FIG. 3) and the third usage example (FIG. 5) described above, “increase” and “decrease” appear in the flowchart regarding the computing power. This can be realized by setting two levels, a high level and a low level, in the computing capacity of the arithmetic processing unit 10. For example, it is conceivable that the high-level operation capacity is the original operation capacity of the operation processing unit 10 itself and the low-level operation capacity is about half thereof. That is, when these flows are finished with "increase" (S5, S13), the subsequent computing power is set to a high level, and when finished with "down" (S6, S14), the subsequent computing power is set to a low level. To do.

  In the second example of use (FIG. 4), “as is” and “stop” appear in terms of computing power. This "stop" is to temporarily set the computing capacity to zero as described above. "As is" means that the setting of computing power is not changed. However, if it has stopped until then and has reached "as is", it is sufficient to restart the computation with a low level of computing power. Alternatively, it is also possible to set a computing power level of medium level and set the subsequent computing power level to the medium level in the case of "as is".

  Further, the above-mentioned first usage example and second usage example can be implemented even if the solar power generation device 5 and the solar power generation power meter 8 are not provided in the power source unit 2 of FIG. is there. Further, the above-described third use example can be implemented even if the power source unit 2 does not include the CGS 6 and the CGS wattmeter 9.

  As described in detail above, in the arithmetic processing device 1 of the present embodiment, the arithmetic capacity of the arithmetic processing unit 10 can be set by the capacity setting unit 12. In addition, the power value acquisition unit 11 determines whether or not the low cost condition is satisfied in the capability setting unit 12 based on each output value acquired from the power source unit 2. As a result, the mining calculation is performed in a concentrated manner during the time when the power cost is decreasing. By doing so, the arithmetic processing unit 1 capable of performing a certain amount of mining calculation while suppressing the power cost generated for the mining calculation is realized.

  The present embodiment is merely an example and does not limit the present invention. Therefore, naturally, the present invention can be variously improved and modified without departing from the gist thereof. For example, in the above-described embodiment, the reference values of two levels are set only for the received power (second usage example), and the reference values of only one level are used for the other output values. However, the present invention is not limited to this, and it is also possible to set reference values of two levels for other output values, and it is also possible to set the reference value of received power to only one level. More than 3 levels are possible. Further, it is possible to set the calculation capability of the calculation processing unit 10 to multiple levels. Further, as examples of use under low cost conditions, combinations other than those listed in the first to third examples of use are possible.

  Further, the specific purpose arithmetic processing executed by the arithmetic processing device 1 may be other than the virtual currency mining arithmetic operation. For example, it is possible to monitor, report, or delete inappropriate writing in SNS (social network service) or the like.

DESCRIPTION OF SYMBOLS 1 Arithmetic processing device 2 Electric power source part 3 Electric power consumption equipment group 4 Commercial power system 5 Solar power generation device 6 Gas cogeneration device 7 Receiving power meter 8 Solar power generation meter 9 CGS wattmeter 10 Arithmetic processing part 11 Electric power value acquisition part 12 Ability setting section

Claims (5)

An arithmetic processing unit which is used as one of a group of electric power consuming equipment which is supplied with electric power from an electric power source by using a commercial electric power system and an in-house power generation source together, and which performs arithmetic processing,
An arithmetic processing unit capable of performing arithmetic processing and adjusting the arithmetic capacity,
A power value acquisition unit that acquires a value related to power supply from the power source,
A power setting unit that sets the calculation capability of the calculation processing unit based on the value acquired by the power value acquisition unit;
The ability setting unit,
When the low cost condition indicating that the power cost is low, which is predetermined for the value acquired by the power value acquisition unit, is satisfied, the computing capacity is increased,
When the low cost condition is not met, the computing power is not increased.
The arithmetic processing unit is configured to perform arithmetic processing for a specific purpose within the range of the arithmetic power set by the ability setting unit, in an internal autonomous manner, not based on a direct operation of a user. An arithmetic processing device characterized by being a thing. The arithmetic processing unit according to claim 1,
The value acquired by the power value acquisition unit includes the power generation amount of the solar power generation when the private power generation source includes solar power generation,
The low-cost condition set in the capacity setting unit includes that the power generation amount of the solar power generation is larger than a predetermined value. The arithmetic processing unit according to claim 1 or 2,
The value acquired by the power value acquisition unit,
Reverse flow rate from the private power generation source to the commercial power system,
The amount of power generated by the private power generation source is included,
In the low cost conditions defined in the capacity setting unit,
The reverse flow rate is greater than a predetermined value, and
An arithmetic processing unit, wherein the power generation amount of the private power generation source is smaller than a predetermined value. The arithmetic processing unit according to claim 3,
The value acquired by the power value acquisition unit further includes the amount of power received from the commercial power system,
The capacity setting unit, when the low cost condition is not satisfied,
When the amount of received power exceeds a predetermined upper limit value, the computing capacity is set to zero,
When the received power amount is less than or equal to the upper limit value and exceeds a predetermined normal value that is less than the upper limit value, the computing capacity is reduced,
An arithmetic processing device, wherein the arithmetic capacity is kept as it is when the received power amount is equal to or less than the normal value. The arithmetic processing unit according to claim 3 or 4,
The value acquired by the power value acquisition unit includes the power generation amount of the gas cogeneration device when the private power generation source includes the gas cogeneration device,
The arithmetic processing unit, wherein the power generation amount of the private power generation source under the low cost condition defined in the capacity setting unit is the power generation amount of the gas cogeneration device.

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