JP6401054B2 - Information processing system and information processing system program - Google Patents

Information processing system and information processing system program Download PDF

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JP6401054B2
JP6401054B2 JP2014266184A JP2014266184A JP6401054B2 JP 6401054 B2 JP6401054 B2 JP 6401054B2 JP 2014266184 A JP2014266184 A JP 2014266184A JP 2014266184 A JP2014266184 A JP 2014266184A JP 6401054 B2 JP6401054 B2 JP 6401054B2
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information processing
air
control unit
blower
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JP2016126485A (en
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達也 中田
達也 中田
圭輔 関口
圭輔 関口
秀樹 月元
秀樹 月元
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株式会社Nttファシリティーズ
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/10Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply
    • Y02D10/16Cooling means for computing equipment provided with thermal management
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/20Reducing energy consumption by means of multiprocessor or multiprocessing based techniques, other than acting upon the power supply
    • Y02D10/22Resource allocation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/20Reducing energy consumption by means of multiprocessor or multiprocessing based techniques, other than acting upon the power supply
    • Y02D10/26Increasing resource utilisation, e.g. virtualisation, consolidation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/30Reducing energy consumption in distributed systems
    • Y02D10/32Delegation or migration
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/30Reducing energy consumption in distributed systems
    • Y02D10/36Resource sharing

Description

  The present invention relates to an information processing system including a plurality of information processing devices such as ICT devices, and a program for realizing the information processing system.

  For example, in the invention described in Patent Document 1, a plurality of air conditioners share and cool a plurality of information processing devices. The operating state of each information processing device is controlled so that the information processing work performed by the information processing device in charge of the air conditioning device with a small air flow rate is transferred to the information processing device in charge of the air conditioning device with a large air flow rate. .

WO2012 / 053115

  An object of the present invention is to reduce the power consumption of an information processing system by controlling the operating states of a plurality of information processing devices from a viewpoint different from Patent Document 1.

  When the amount of blown air increases, the power consumption of the blower increases in proportion to the approximately third power of the change. Therefore, in an information processing system including a plurality of fans, it is important to reduce variation in the amount of air blown from the plurality of fans.

Therefore, in the present application, a plurality of information processing devices (1) installed in the room, a cooler (51A, 52A) for cooling the air supplied to the room, and air cooled by the cooler (51A, 52A) A plurality of blowers (51C, 52C) for supplying air into the room, an operation control unit (20) for controlling the operation rate of each of the plurality of information processing devices, and the amount of air blown by each of the plurality of fans (51C, 52C). Each of the plurality of fans (51C, 52C) includes an information processing device (1) to be blown out of the plurality of information processing devices (1), and operates. The control unit (20) has a function of reducing the operating rate of the information processing device (1) to be blown by the blower after determining the blower from which the air volume should be lowered among the plurality of blowers (51C, 52C). The features.

  Thereby, in this application, since it becomes possible to make small dispersion | variation in the ventilation volume of several air blowers (51C, 52C), it becomes possible to reduce the power consumption of several air blowers (51C, 52C). As a result, the power consumption of the information processing system can be reduced.

In the present application, a plurality of information processing devices (1) installed in the room, a cooler (51A, 52A) for cooling the air supplied to the room, and air cooled by the cooler (51A, 52A) A plurality of blowers (51C, 52C) for supplying air into the room, an operation control unit (20) for controlling the operation rate of each of the plurality of information processing devices, and the amount of air blown by each of the plurality of fans (51C, 52C). Each of the plurality of fans (51C, 52C) includes an information processing device (1) to be blown out of the plurality of information processing devices (1), and operates. A control part (20) has a function which raises the operation rate of the information processing apparatus (1) which the said air blower should blow after determining the air blower which should raise air flow volume among several air blowers (51C, 52C). This The features.

  Thereby, in this application, since it becomes possible to make small dispersion | variation in the ventilation volume of several air blowers (51C, 52C), it becomes possible to reduce the power consumption of several air blowers (51C, 52C). As a result, the power consumption of the information processing system can be reduced.

In addition, the above-mentioned two features can be paraphrased as follows.
That is, an air conditioning system that cools a plurality of information processing devices (1) using a viscous fluid that moves heat (hereinafter referred to as a heat medium), and that generates a plurality of powers for moving the heat medium. The electric motor includes an air conditioning system in which each of the plurality of electric motors is to be assigned to which information processing device (1) among the plurality of information processing devices (1). It is characterized in that at least one of the plurality of information processing devices (1) and the air conditioning system is controlled so that the variation in the number of rotations is not more than a preset value.

  The “plural electric motors” described above correspond to “plural blowers (51C, 52C)” in the above-described two features, for example. For example, the “heat medium” corresponds to “air supplied to the room” in the above two characteristics.

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

It is a figure which shows the outline | summary of the information system which concerns on embodiment of this invention. It is a figure showing an outline of an air-conditioning system concerning an embodiment of the present invention. It is a figure which shows the outline | summary of the control system of the information system which concerns on embodiment of this invention. It is a figure which shows the characteristic of the information system which concerns on embodiment of this invention. It is a flowchart which shows the characteristic of the information system which concerns on embodiment of this invention. It is a figure showing an outline of an air-conditioning system concerning an embodiment of the present invention.

  The “embodiment of the invention” described below shows an example of the embodiment. In other words, the invention specific items described in the claims are not limited to the specific means and structures shown in the following embodiments.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that at least one member or part described with at least a reference numeral is provided, except for cases where “plural”, “two or more” and the like are omitted.

(First embodiment)
1. Outline of Information Processing System An information processing system according to this embodiment includes an information processing device such as an information communication technology device (hereinafter also referred to as an ICT device or a server device) and an air conditioning system. It is. As shown in FIG. 1, a plurality of ICT devices 1 are installed in the server room.

Each ICT device 1 is configured by a server device that can execute a virtual server. That is, each ICT device 1 executes the information processing in response to an information processing request from a terminal (client) device. At this time, the ICT device 1 that actually executes the information processing is not limited to the specific ICT device 1 and can be arbitrarily set from the plurality of ICT devices 1.

  For this reason, for example, a state in which an information processing request is processed by a specific ICT device 1 from a specific terminal device is shifted to a state in which the information processing request is processed by another ICT device 1 other than the ICT device 1. be able to.

  That is, in the information processing system according to the present embodiment, when a large number of information processing requests are made to a plurality of ICT devices 1, the centralized processing control is performed to concentrate the information processing requests on the specific ICT device 1 for processing. Alternatively, distributed processing control or the like that distributes and processes the information processing request among the plurality of ICT devices 1 can be executed.

2. Cooling device for ICT equipment (air conditioning system)
2.1 Outline of Air Conditioning System A plurality of ICT devices 1 are installed in a data center room or the like in a state of being assembled in a rack 3. The rack 3 is configured by a frame-shaped storage shelf in which a metal shelf frame and a column wall are combined. One side of the rack 3 is provided with a cold air passage (cold aisle) 3A to which cold air is supplied.

  The cool air is supplied from the duct space 3C provided under the floor of the cool air passage 3A to the rack 3 side, and then supplied to the cool air passage 3A from a plurality of cold air outlets (not shown) provided on the floor. A cold air outlet is not provided in the passage 3B opposite to the cold air passage 3A across the rack 3.

  Air that has been supplied to the ICT device 1 from the cold air passage 3A and that has been cooled by the ICT device 1 has risen in the passage 3B. That is, the passage 3B is a hot air passage (hot aisle) through which heated air (hot air) flows.

  The air conditioning unit 5 generates cooling air supplied to the ICT apparatus 1. In this embodiment, two air conditioning units 51 and 52 are installed. Hereinafter, the air conditioning unit 5 on the left side of the paper is referred to as a first air conditioning unit 51, the air conditioning unit 5 on the right side of the paper is referred to as a second air conditioning unit 52, and the air conditioning units 51 and 52 are collectively referred to as the air conditioning unit 5.

  The first air conditioning unit 51 and the second air conditioning unit 52 are air conditioning units having the same structure. That is, as shown in FIG. 2, the first air conditioning unit 51 and the second air conditioning unit 52 are air handling units (AHU) having coolers 51A and 52A, flow rate adjusting valves 51B and 52B, blowers 51C and 52C, and the like. It is configured.

  The coolers 51A and 52A cool the air by exchanging heat between the cold water supplied from the heat source device 7 and the air supplied to the room. The heat source device 7 generates cold heat. The cold heat is supplied to the coolers 51A and 52A by cold water as a heat medium.

  The heat medium, that is, cold water is supplied to the coolers 51A and 52A (air conditioning unit 5) by the primary pump P1 and the secondary pump P2. The flow rate adjusting valves 51B and 52B are provided in the respective coolers 51A and 52A. The flow rate adjusting valves 51B and 52B adjust the circulation amount of cold water supplied to the coolers 51A and 52A.

For this reason, the temperature of the cold water supplied to the cooler 51A (referred to as the first cooler 51A) and the temperature of the cold water supplied to the cooler 52A (referred to as the second cooler 52A) are the same temperature. In contrast, the circulating water amount of the first cooler 51A and the circulating water amount of the second cooler 52A are respectively
It fluctuates according to the cooling capacity required for each air conditioning unit 5.

  Each of the blowers 51C and 52C is an electric blower that can supply cold air to the ICT device 1 and adjust the air volume. Note that each of the fans 51C and 52C includes a fan, an electric motor, and the like. In each of the fans 51C and 52C, as shown in FIG. 1, the ICT device 1 to be blown among the plurality of ICT devices 1 is set in advance.

  Specifically, the blower 51C (hereinafter referred to as the first blower 51C) is the ICT device 1 (hereinafter referred to as the first ICT device 1A) housed mainly in two rows on the left side of the drawing among the plurality of ICT devices 1. Cool air is blown into.

  The blower 52C (hereinafter referred to as the second blower 52C) blows cold air to the ICT devices 1 (hereinafter referred to as the second ICT device 1B) housed mainly in the two rows on the right side of the paper among the plurality of ICT devices 1. .

  The heat source device 7 is installed outdoors. As shown in FIG. 2, the cold water generated by the heat source device 7 is supplied to the indoor (air conditioning unit 5) side by the primary pump P1, and then distributed and supplied to the air conditioning units 5 by the secondary pump P2. The

  The bypass flow path L1 is a chilled water circuit that absorbs a flow rate difference when the discharge flow rate of the primary pump P1 and the discharge flow rate of the secondary pump P2 are different. For example, when the opening degree of the flow rate adjusting valves 51B and 52B decreases and the discharge flow rate of the secondary pump P2 decreases, the reduced amount flows through the bypass flow path L1.

  The heat source device 7 includes a heat source machine 7A, a cooling tower 7B, a cooling water pump P3, and the like. The heat source unit 7A is configured by a vapor compression refrigerator that circulates a refrigerant such as chlorofluorocarbon to move the heat on the low temperature side to the high temperature side. The cooling tower 7B cools the cooling water by exchanging heat between the cooling water heat-exchanged with the refrigerant and at least one of air and water.

  As is well known, the heat source unit 7A, that is, the vapor compression refrigeration machine, is not shown, such as a compressor, an electric motor that drives the compressor, a radiator such as a condenser, a decompressor, an evaporator, and the like. ). The primary pump P1 and the secondary pump P2 are driven by an electric motor (not shown).

2.2 Capability Control of Air Conditioning System The cooling capacity generated in each cooler 5 includes the flow rate adjustment valves 51B and 52B, the blower capacity of the fans 51C and 52C, and the amount of cold water supplied to the coolers 51A and 52A (two It varies depending on the amount of water delivered by the next pump P2), the temperature of the cold water (the refrigeration capacity generated by the heat source device 7), and the like.

  The refrigerating capacity generated in the heat source device 7, that is, the refrigerating capacity generated in the heat source unit 7A (vapor compression type refrigerating machine) is added to the cooling capacity of the cooling tower 7B, the circulating water amount of the cooling water, etc. It varies depending on the rotational speed of the provided compressor and the opening degree of the expansion valve.

  The integrated control device 10 includes an air conditioner control unit 10A, a secondary pump control unit 10B, a primary pump control unit 10C, a heat source control unit 10D, a cooling water pump control unit 10E, and a cooling tower control unit 10F. Indirectly control each component device.

  The air conditioner control unit 10A controls the operation of the air conditioning unit 5, that is, the flow rate adjusting valves 51B and 52B and the fans 51C and 52C. The secondary pump control unit 10B controls the amount of cold water supplied to the air conditioning unit 5 by controlling the operation of the secondary pump P2.

  The primary pump control unit 10C controls the operation of the primary pump P1. The heat source control unit 10D controls the heat source unit 7A, that is, the rotational speed of the compressor, the opening degree of the expansion valve, and the like. The cooling water pump control unit 10E controls the operation of the cooling water pump P3 to control the circulation amount of the cooling water. The cooling tower control unit 10F controls the amount of air blown by the outdoor fan 7C, the amount of water sprayed by the water sprinkler 7D, and the like.

  The integrated control device 10 and the control units 10A to 10F are configured by a computer having a CPU, a ROM, a RAM, and the like. A program for executing control of each device is stored in advance in a nonvolatile storage unit such as a ROM provided in the integrated control device 10 and the control units 10A to 10F.

3. Control of an air conditioning system by an integrated control device etc. Each control part 10A-10F has a drive circuit etc. which drive the control object of the control part, and controls the control object directly. The integrated control device 10 issues a control command signal to each of the control units 10A to 10F.

That is, after receiving the control command signal from the integrated control device 10, each of the control units 10A to 10F autonomously executes specific control for realizing the content of the control command signal.
For example, each air conditioning unit 5 is provided with a blown air temperature sensor S1 and an intake air temperature sensor S2. Each blown air temperature sensor S1 detects the temperature of air supplied from the air conditioning unit 5 to the room, that is, the air after heat exchange in the coolers 51A and 52A (hereinafter referred to as blown air temperature).

  Each intake air temperature sensor S2 detects the temperature of the air before heat exchange in the coolers 51A and 52A, that is, the temperature of the air sucked into each air conditioning unit 5 (hereinafter referred to as the intake air temperature). Each intake air temperature sensor S <b> 2 detects the temperature of air sucked into the air conditioning unit 5 from the upper side in the vertical direction of each air conditioning unit 5.

  The air conditioner control unit 10A adjusts each flow rate so that the temperature difference between the blown air temperature and the intake air temperature becomes the “target temperature difference (hereinafter, target temperature difference ΔTo)” set by the integrated control device 10. The valves 51B and 52B and the fans 51C and 52C are controlled.

  That is, the air conditioner control unit 10A autonomously controls the operation of the air conditioning unit 5 so as to be the current target temperature difference ΔTo unless the new target temperature difference ΔTo is set by the integrated control device 10.

  Specifically, when the difference between the current temperature difference and the target temperature difference ΔTo increases in the area where the first ICT device 1A is installed, the air conditioner control unit 10A determines the opening degree of the flow rate adjustment valve 51B and the first blower. The cooling capacity of the first air conditioning unit 51 is increased at the present time by increasing the air flow of 51C.

  When the difference between the current temperature difference and the target temperature difference ΔTo becomes small in the area where the first ICT device 1A is installed, the air conditioner control unit 10A determines the opening degree of the flow rate adjustment valve 51B and the blast amount of the first blower 51C. The cooling capacity of the first air conditioning unit 51 is decreased from the current time by reducing the size.

  Similarly, when the difference between the current temperature difference and the target temperature difference ΔTo increases in the area where the second ICT device 1B is installed, the air conditioner control unit 10A determines the opening degree of the flow rate adjustment valve 52B and the second blower 52C. The cooling capacity of the second air conditioning unit 52 is increased by increasing the air flow rate.

  When the difference between the current temperature difference and the target temperature difference ΔTo becomes small in the area where the second ICT device 1B is installed, the air conditioner control unit 10A determines the opening degree of the flow rate adjustment valve 52B and the blower amount of the second blower 52C. The cooling capacity of the second air conditioning unit 52 is reduced from the current time by reducing the size. As described above, the integrated control device 10 and the air conditioner control unit 10A function as a blow control unit that controls the blow amount of each of the plurality of blowers 51C and 52C.

  The target temperature difference ΔTo is a value stored in the integrated control device 10 or the air conditioner control unit 10A as a preset fixed value, a value determined by the integrated control device 10 according to a predetermined rule, or the like. Any of them may be used.

  The “predetermined rule” is, for example, a target temperature based on a temperature difference between a preset target indoor air temperature and an actual indoor air temperature (temperature detected by the room temperature sensor S5). For example, a rule for determining the difference ΔTo.

  As long as the primary pump control unit 10C and the secondary pump control unit 10B do not receive a flow rate change command from the integrated control device 10, chilled water with a preset flow rate (hereinafter also referred to as a target chilled water circulation rate) circulates. The primary pump P1 and the secondary pump P2 are autonomously controlled.

  Then, when the primary pump control unit 10C and the secondary pump control unit 10B receive the flow rate change command from the integrated control device 10, the primary pump P1, the secondary pump is set with the received new circulation amount as the target cold water circulation amount. The pump P2 is controlled autonomously.

  On the discharge side of the primary pump P1 or the secondary pump P2 (in this embodiment, the primary pump P1), a cold water temperature sensor S3 that detects the temperature of the cold water is provided. The heat source control unit 10D autonomously controls the operation of the heat source unit 7A so that the cold water temperature detected by the cold water temperature sensor S3 becomes the “target cold water discharge temperature” set by the integrated control device 10. To do.

  The cooling water pump control unit 10 </ b> E autonomously controls the operation of the cooling water pump P <b> 3 so that the cooling water circulation amount becomes the “target cooling water circulation amount” set by the integrated control device 10.

  The cooling tower control unit 10F autonomously operates the cooling tower 7B so that the temperature of the cooling water cooled by the cooling tower 7B becomes the “target cooling water temperature” set by the integrated control device 10. To control. The “cooling water temperature” is detected by the cooling water temperature sensor S4.

4). Operation rate control of each ICT device The operation rate of the ICT device 1 is an information processing amount actually executed by the ICT device 1 or an information processing amount scheduled to be executed by the ICT device 1 (hereinafter, these information processings). The amount is a parameter indicating the degree of “processing information amount”.

  That is, the operation rate of the ICT device 1 refers to, for example, the ratio of the processing information amount to the maximum information processing amount that can be executed by the ICT device 1, the size of the processing information amount itself, and the like. Therefore, the operating rate of the ICT device 1 is not a parameter indicating only the ratio.

  The operation rate of each ICT device 1 is determined and controlled by the operation control unit 20 as shown in FIG. The operation control unit 20 can transmit and receive information to and from the integrated control device 10 and controls the operation state of each ICT device 1 in cooperation with the integrated control device 10.

The operation control unit 20 is configured by a computer having a CPU, a ROM, a RAM, and the like. The program for executing the control is the RO provided in the operation control unit 20
It is stored in advance in a nonvolatile storage unit such as M.

4.1 Overview of Operation Rate Control The operation control unit 20 can execute a power saving control mode for the purpose of reducing power consumption (power consumption) of the first blower 51C and the second blower 52C. The power saving control mode is a control mode of the ICT device 1 that changes and controls the operating rate of each ICT device 1 so that the variation in the amount of air flow of each of the plurality of fans 51C and 52C is equal to or less than a predetermined value. .

  That is, when the power saving control mode is being executed, the operation control unit 20 determines one or more ICTs to be blown by the blower after determining the blower whose air volume should be reduced among the blowers 51C and 52C. The operating rate of the apparatus 1 is reduced.

  Specifically, the operation control unit 20 performs the information processing work of one or more ICT devices 1 to be blown by the blower having the largest blowing amount among the plurality of blowers 51C and 52C. Among them, the blower with the smallest blowing amount is shifted to one or a plurality of ICT devices 1 to be blown.

  For example, when the blower volume of the first blower 51C is the largest, the operation control unit 20 determines the first blower 51C as “the blower whose airflow should be reduced” and then performs the information processing work of the first ICT device 1A. By shifting to the 2ICT device 1B, the operating rate of the first ICT device 1A is reduced.

  As a result, the amount of heat generated in the first ICT device 1A decreases, and the amount of heat generated in the second ICT device 1B increases. And by the autonomous control function of 10 A of air conditioner control parts, the ventilation volume of the 1st air blower 51C falls, and the ventilation volume of the 2nd air blower 52C increases. Therefore, the variation in the blast volume of each of the plurality of fans 51C and 52C is reduced.

  Further, the operation control unit 20 determines the blower to increase the air flow rate among the plurality of blowers 51C and 52C, and then increases the operation rate of the one or more ICT devices 1 to be blown by the blower.

  Specifically, the operation control unit 20 performs the information processing work of one or a plurality of ICT devices 1 to be blown by the blower having the smallest blowing amount among the plurality of fans 51C and 52C. Among them, the blower having the largest blowing amount is shifted to one or a plurality of ICT devices 1 to be blown.

  For example, when the blower volume of the first blower 51C is the smallest, the operation control unit 20 determines the first blower 51C as “the blower whose airflow should be increased” and then performs the information processing work of the second ICT device 1B. By shifting to the 1ICT device 1A, the operating rate of the first ICT device 1A is increased.

  As a result, the amount of heat generated in the first ICT device 1A increases and the amount of heat generated in the second ICT device 1B decreases. And by the autonomous control function of 10 A of air conditioner control parts, the ventilation volume of the 1st air blower 51C rises, and the ventilation volume of the 2nd air blower 52C falls. Therefore, the variation in the blast volume of each of the plurality of fans 51C and 52C is reduced.

  By the way, in the present embodiment, a plurality of ICT devices 1 are installed in the rack 3. That is, the first ICT device 1A and the second ICT device 1B described above do not mean a specific one ICT device 1 but a set of a plurality of ICT devices 1 as shown in FIG.

Therefore, for example, when “the information processing work of the first ICT device 1A is transferred to the second ICT device 1B”, the following method is employed in the present embodiment (see FIG. 4).
That is, the operation control unit 20 is executed by (a) the ICT device 1 that is located farthest from the first blower 51C among the plurality of ICT devices 1 constituting the first ICT device 1A or the ICT devices 1 around it. Or (b) the information processing operation being executed by the ICT device 1 having the highest temperature or the surrounding ICT device 1 is determined. Hereinafter, the determined information processing work is referred to as “migration source work”.

  Next, the operation control unit 20 includes (c) the ICT device 1 located closest to the second blower 52C among the plurality of ICT devices 1 constituting the second ICT device 1B, or the ICT device 1 around it (d) ) Determine the coldest ICT device 1 or the surrounding ICT device 1. Hereinafter, the determined ICT device 1 is referred to as a “migration destination ICT device”.

  Thereafter, the operation control unit 20 shifts “migration source work” to “migration destination ICT device”. And said transfer operation | work is repeated until the dispersion | variation in the ventilation volume of each of several air blowers 51C and 52C becomes below a predetermined value.

4.2 Details of Operation Rate Control FIG. 5 is a flowchart showing control in the power saving control mode. When this control is activated, first, after the number of ICT devices 1 that are in operation, that is, the number of ICT devices 1 whose processing information amount is not 0 is calculated (S101), the calculated number is the number that was calculated last time. It is determined whether or not (S102).

  If it is determined that the number calculated in S102 is not the same as the number calculated last time (S102: NO), whether or not the number calculated in S101 (this time) is larger than the number calculated last time Is determined (S103).

  If it is determined that the currently calculated number is larger than the previously calculated number (S103: YES), the information processing operation is transferred to the ICT device 1 located in the vicinity of the blower with the smallest air flow rate. (S105). Thereby, at the present time, the operating rate (the number of operating units) of the ICT device 1 shared by the blower with the smallest blown amount increases.

  If it is determined that the number calculated this time is not larger than the number calculated last time (S103: NO), there is no other information processing work on the ICT device 1 located in the vicinity of the blower where the air flow is maximum. The ICT apparatus 1 is shifted to (S104). Thereby, at the present time, the operating rate (the number of operating units) of the ICT device 1 shared by the blower having the largest air flow rate is lowered.

After S104 or S105 is executed, S101 is executed again.
If it is determined that the number of units calculated in S102 is the same as the number of units calculated last time (S102: YES), whether or not the parameter σ indicating the variation in the air flow rate is smaller than a predetermined value. Is determined (S106).

  In addition, the parameter σ according to the present embodiment includes a standard deviation of the air flow rate (the rotational speed of the blower) and a difference between the maximum air flow rate (the maximum rotational speed of the air blower) and the minimum air flow rate (the minimum speed of the air blower). It is a value indicating the degree of variation in the air flow rate.

When it is determined that the parameter σ is smaller than a predetermined value (S106: YES), S101 is executed. When it is determined that the parameter σ is not smaller than a predetermined value (S106: NO), an IC located in the vicinity of the blower having the maximum air flow rate
After the information processing operation of the T device 1 is shifted to the ICT device 1 located in the vicinity of the blower with the smallest air flow (S107), S101 is executed again.

5. Features of the air-conditioning system according to the present embodiment The present embodiment is summarized as follows.
That is, an air conditioning system that cools the plurality of ICT devices 1 using a viscous fluid that moves heat (hereinafter referred to as a heat medium), and includes a plurality of electric motors that generate power for moving the heat medium. In addition, each of the plurality of electric motors includes an air conditioning system in which which ICT device 1 of the plurality of ICT devices 1 should be in charge of is set in advance.

  The integrated control device 10 and the operation control unit 10 control the plurality of ICT devices 1 and the air conditioning system so that the variation in the rotation speed of each of the plurality of electric motors is equal to or less than a preset value. In the above summary, “a plurality of electric motors” corresponds to “a plurality of fans 51C, 52C”. “Heat medium” corresponds to “air supplied to the room”.

  As described above, when the amount of blown air increases, the power consumption of the blower increases in proportion to the approximately third power of the change. Therefore, in an information processing system including a plurality of blowers, it is assumed that the total heat generation amount (sum of the heat generation amounts of the plurality of ICT devices 1) in the server room and the amount of cooling / heating heat generated by the heat source device 7 corresponding thereto In a situation that can be regarded as constant, reducing the variation in the air flow rate of each of the plurality of blowers can reduce the power consumption of the information processing system.

  And in this embodiment, since it becomes possible to make small dispersion | variation in the ventilation volume of each of several air blowers 51C and 52C as mentioned above, it becomes possible to reduce the power consumption of several air blowers 51C and 52C. Become. As a result, the power consumption of the information processing system can be reduced.

  As described above, the present invention controls the operation rate of each of the plurality of ICT devices 1 to level the cooling capacity generated in each of the plurality of air conditioning units 5, thereby performing information processing. System power consumption is reduced.

  In other words, in the present embodiment, in order to realize “leveling of the cooling capacity generated in each of the plurality of air conditioning units 5”, the plurality of air blowers 51 </ b> C and 52 </ b> C are provided with a plurality of airflows so as to reduce variation. The operation rate of each ICT device 1 is controlled.

(Second Embodiment)
In the above-described embodiment, the single heat source device 7 is configured to supply cold heat to the plurality of indoor units 5. On the other hand, the air conditioner of the information processing system according to the present embodiment is configured to supply cold heat to the plurality of indoor units 5 by the plurality of heat source devices 7, as shown in FIG.

  In addition, each heat source apparatus 7 which concerns on this embodiment does not have the cooling tower 7B, The cold pump produced | generated by the heat source machine 7A (vapor compression type refrigerator) is supplied to the primary pumps P1 and 2 via cold water. It supplies to each indoor unit 5 with the next pump P2.

  In FIG. 6, the indoor unit 5 and the heat source device 7 have a one-to-one relationship. However, in the configuration in which the plurality of heat source devices 7 supply cold heat to the plurality of indoor units 5, The plurality of ICT devices 1 and the air conditioning system are controlled so that the variation in the rotational speed of each of the electric motors is equal to or less than a preset value.

  That is, in the present embodiment, a plurality of compressor electric motors, a plurality of pump electric motors, and a plurality of blower electric motors are assumed as the plurality of electric motors. Hereinafter, when all these three types of electric motors are collectively referred to, they are simply referred to as “electric motors”.

  Then, the integrated control device 10 and the operation control unit 20 (hereinafter collectively referred to as “control unit”) are configured so that the variation in the rotational speed of each of the plurality of electric motors is equal to or less than a preset value. A plurality of ICT devices 1 and the air conditioning system are controlled.

  Specifically, the control unit sets the electric motor rotation speed of each of the fans 51C and 52C to the same rotation speed so that the air volume of the first fan 51C and the air volume of the second fan 52C are the same.

  In conjunction with this, the control unit sets the rotation speed of the compressor provided in each heat source apparatus 7A to the same rotation speed, and the rotation speed of each primary pump P1 and secondary pump P2 to the same rotation speed. The operation rate of each ICT device 1 is controlled.

  That is, the control unit controls the operating rate of each ICT device 1 so that the cooling capacity generated in each indoor unit 5 is leveled in a state where the air flow rate of each of the blowers 51C and 52 is leveled. At this time, the electric motor for the compressor generates power for circulating a heat medium such as chlorofluorocarbon.

  The electric motors of the primary pump P1 and the secondary pump P2 generate power for circulating a heat medium such as cold water that is a viscous fluid. For this reason, in any electric motor, power consumption increases in proportion to approximately the third power of the rotation speed change.

  Therefore, in an information processing system including a plurality of electric motors that generate power for moving the heat medium, if variation in the number of rotations of each of the plurality of electric motors is equal to or less than a preset value, the same as in the first embodiment. It becomes possible to reduce the power consumption of the information processing system.

  Note that the amount of air blown by the first blower 51C and the amount of air blown by the second blower 52C, that is, the electric motor rotation speed of each of the blowers 51C and 52C, is determined by the control unit in accordance with a preset rule. The “preset rule” includes, for example, a case where the electric motor rotation is determined based on a predetermined fixed value, room temperature, or the like.

(Other embodiments)
In the above-described embodiment, the information processing system includes two fans. However, the present invention is not limited to this, and can be applied to an information processing system including three or more fans.

  In the above-described embodiment, the number of coolers is the same as the number of blowers. However, the present invention is not limited to this, and the number of coolers and the number of blowers may be different. That is, for example, one cooler and two fans may be used, and one cooler may be shared by a plurality of fans.

  In the above-described embodiment, the transition of the information processing work is repeated until the variation in the air flow rate of each of the plurality of fans 51C and 52C is equal to or less than a predetermined value, but the present invention is not limited to this. Instead, in the present invention, the information processing operation may be transferred at least once.

The operation control unit 20 according to the above-described embodiment is described as follows: “After determining the blower that should reduce the air volume among the plurality of blowers 51C and 52C, the operation rate of the one or more ICT devices 1 that the blower should blow. "Function to reduce" and "Function to increase the operating rate of one or more ICT devices 1 to which the blower should be blown after determining the blower that should raise the blown air volume among the plurality of blowers 51C and 52C". However, the present invention is not limited to this, and may have only one of the functions.

  The air conditioner control unit (fan control unit) 10A according to the above-described embodiment controls the fans 51C and 52C so that the temperature difference between the blown air temperature and the intake air temperature becomes the target temperature difference ΔTo, but the present invention. Is not limited to this. That is, for example, each of the blowers 51C and 52C may be controlled such that one of the blown air temperature and the intake air temperature becomes a preset target temperature.

The present invention is not limited to the above-described embodiment as long as it meets the gist of each invention described in the claims.
That is, in the above-described second embodiment, the cooling capacity generated in each indoor unit 5 is leveled in a state where the air flow rate of each of the fans 51C and 52 is leveled, but the present invention is not limited to this. Absent.

  That is, the present invention controls at least one of the plurality of ICT devices 1 and the air conditioning system so that the cooling capacity is equalized by setting the variation in the rotation speed of each of the plurality of electric motors to be equal to or less than a preset value. To do.

  Therefore, for example, a configuration in which the cooling capacity is leveled by a device other than the blowers 51C and 52 without leveling the blown amount of the blowers 51C and 52 may be used.

DESCRIPTION OF SYMBOLS 1 ... ICT apparatus 3 ... Rack 5 ... Air conditioning unit 7 ... Heat source apparatus 7A ... Heat source apparatus 7B ... Cooling tower 7C ... Outdoor fan 7D ... Sprinkler 10 ... Integrated control apparatus 10A ... Air conditioner control part 10B ... Secondary pump control part 10C ... Primary pump control unit 10D ... Heat source control unit 10E ... Cooling water pump control unit 20 ... Operation control unit

Claims (8)

  1. A plurality of information processing devices installed indoors;
    A cooler for cooling the air supplied to the room;
    A plurality of blowers for supplying air cooled by the cooler into the room;
    An operation control unit that controls an operation rate of each of the plurality of information processing devices ;
    A blower control unit for controlling the blown amount of each of the plurality of blowers,
    Each of the plurality of blowers is preset with information processing devices to be blown out of the plurality of information processing devices,
    The information processing system , wherein the operation control unit controls an operation rate of each of the plurality of information processing devices such that a variation in the amount of air flow of each of the plurality of fans is equal to or less than a predetermined value .
  2. The operation control unit, after determining the blower to reduce the air volume of the plurality of blowers, claim 1 in which the blower and having a function of lowering the operation rate of the information processing apparatus to be blown Information processing system described in 1 .
  3. Claim wherein the operating control unit, after determining the blower to increase the blowing rate of the plurality of blowers, characterized in that it comprises a function of the blower raises the operating rate of the information processing apparatus to be blown The information processing system according to 1 or 2 .
  4. The operation control unit is configured to process information processing work of the information processing device that should be blown by the blower having the largest blowing amount among the plurality of blowers, and the information that should be blown by the blower having the smallest blowing amount among the plurality of blowers. The information processing system according to claim 1, further comprising a function of shifting to a processing device.
  5. A program applied to an information system including a plurality of information processing devices installed in a room, a cooler that cools air supplied to the room, and a plurality of fans that supply air cooled by the cooler to the room Because
    Control computer,
    An information processing system program that functions as a control unit that controls an operation rate of each of the plurality of information processing devices so that variation in the amount of air flow of each of the plurality of blowers is equal to or less than a predetermined value. .
  6. A plurality of information processing devices installed indoors;
    An air conditioning system that cools the plurality of information processing devices using a viscous fluid that moves heat (hereinafter referred to as a heat medium), and includes a plurality of electric motors that generate power for moving the heat medium. In addition, an air conditioning system in which each of the plurality of electric motors should be in charge of which information processing device among the plurality of information processing devices, and
    A control unit that controls at least one of the plurality of information processing devices and the air conditioning system so that the variation in the rotation speed of each of the plurality of electric motors is equal to or less than a preset value. Information processing system.
  7. In addition to the plurality of blower electric motors, the plurality of electric motors includes at least one of a plurality of compressor electric motors and a plurality of pump electric motors,
    The control unit is set in advance with variations in rotational speeds of at least one of the plurality of compressor electric motors and the plurality of pump electric motors and the plurality of blower electric motors. The information processing system according to claim 6 , wherein at least one of the plurality of information processing devices and the air conditioning system is controlled to be equal to or less than a value.
  8. A plurality of information processing devices installed indoors;
    An air conditioning system that cools the plurality of information processing devices using a viscous fluid that moves heat (hereinafter referred to as a heat medium), and includes a plurality of electric motors that generate power for moving the heat medium. A program applied to an information system including an air conditioning system in which each of the plurality of electric motors should be in charge of which information processing device among the plurality of information processing devices,
    Control computer,
    It functions as a control unit that controls at least one of the plurality of information processing devices and the air conditioning system so that the variation in the rotation speed of each of the plurality of electric motors is equal to or less than a preset value. Program for information processing system.
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