JP6981015B2

JP6981015B2 - Power supply system, control device, control method and program

Info

Publication number: JP6981015B2
Application number: JP2017035262A
Authority: JP
Inventors: 雄一矢野
Original assignee: NEC Corp
Current assignee: NEC Corp
Priority date: 2017-02-27
Filing date: 2017-02-27
Publication date: 2021-12-15
Anticipated expiration: 2037-02-27
Also published as: JP2018143033A

Description

本発明は、電力供給システム、制御装置、制御方法及びプログラムに関する。 The present invention relates to a power supply system, a control device, a control method and a program.

畜電池を備えた電力供給システムに関して幾つかの技術が提案されている。
例えば、特許文献１には、自然エネルギー発電装置と蓄電池とを備える需要家施設向けの電力管理システムが記載されている。この電力管理システムでは、消費電力推定部が、過去の消費電力のデータから需要家施設における次の測定周期の消費電力を推定する。発電電力推定部は、過去の発電電力のデータから需要家施設における次の測定周期の発電電力を推定する。余剰電力推定部は、推定された発電電力及び消費電力の差分である推定余剰電力を求める。電力管理部は、推定余剰電力に基づき、蓄電池の充電及び放電の各々を制御する。 Several techniques have been proposed for power supply systems equipped with livestock batteries.
For example, Patent Document 1 describes a power management system for a consumer facility including a renewable energy power generation device and a storage battery. In this power management system, the power consumption estimation unit estimates the power consumption of the next measurement cycle in the consumer facility from the past power consumption data. The generated power estimation unit estimates the generated power in the next measurement cycle in the consumer facility from the past generated power data. The surplus power estimation unit obtains the estimated surplus power, which is the difference between the estimated power generation power and the power consumption. The power management unit controls each of charging and discharging of the storage battery based on the estimated surplus power.

また、特許文献２には、燃料電池等の発電装置の運転モードの切り替なしに、発電電力を有効利用するための電力制御システムが記載されている。この電力制御システムでは、蓄電装置と、電流検知部と、発電装置とがこの順番で系統側から接続され、電流検知部は、発電装置と蓄電装置との間の電流量を検知する。制御部は、電流検知部から取得した電流量から算出される電力量に基づいて、発電装置が発生する電力の蓄電装置への充電を制御する。 Further, Patent Document 2 describes a power control system for effectively utilizing the generated power without switching the operation mode of the power generation device such as a fuel cell. In this power control system, the power storage device, the current detection unit, and the power generation device are connected in this order from the system side, and the current detection unit detects the amount of current between the power generation device and the power storage device. The control unit controls charging of the power storage device of the power generated by the power generation device based on the amount of electric power calculated from the amount of current acquired from the current detection unit.

国際公開第２０１６／０４３２４３号International Publication No. 2016/043243 特開２０１６−１６３３７１号公報Japanese Unexamined Patent Publication No. 2016-163371

蓄電池を備えた電力供給システムの１つに無停電電源装置がある。無停電電源装置では、停電時に負荷の動作に必要な電力を蓄電池から供給する。
このように停電時に蓄電池から電力を供給する電力供給システムに関して、停電時に限らず通常時にも蓄電池から負荷へ電力を供給することができれば、電力供給の融通性が高まる。その際、停電時に必要な電力が不足しないことが要求される。例えば、無停電電源装置にサーバ装置が接続されている場合、停電時にサーバ装置がシャットダウンを完了して停止するまで蓄電池からの電力供給を継続する必要がある。
これに対し、特許文献１、２のいずれにも、停電時に蓄電池から電力を供給する電力供給システムからの電力供給の制御については記載されていない。 One of the power supply systems equipped with a storage battery is an uninterruptible power supply. In an uninterruptible power supply, the power required for load operation is supplied from a storage battery in the event of a power failure.
With respect to the power supply system that supplies power from the storage battery in the event of a power failure, if power can be supplied from the storage battery to the load not only during a power failure but also during normal times, the flexibility of power supply is enhanced. At that time, it is required that the required power is not insufficient in the event of a power failure. For example, when a server device is connected to an uninterruptible power supply, it is necessary to continue power supply from the storage battery until the server device completes shutdown and stops at the time of a power failure.
On the other hand, neither Patent Documents 1 and 2 describes the control of the power supply from the power supply system that supplies power from the storage battery in the event of a power failure.

本発明は、上述の課題を解決することのできる電力供給システム、制御装置、制御方法及びプログラムを提供することを目的としている。 An object of the present invention is to provide a power supply system, a control device, a control method, and a program capable of solving the above-mentioned problems.

本発明の第１の態様によれば、電力供給システムは、電源装置と、前記電源装置の停電時にサーバ装置に電力を供給する蓄電池と、サーバ装置からの要求電力情報に示される前記サーバ装置の必要電力と、前記電源装置が出力する電力の測定値とに基づいて、前記電源装置からの供給可能電力が前記サーバ装置の必要電力に対して不足しているか否かを判定する電源能力判定部と、前記蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間を、前記サーバ装置の消費電力と前記蓄電池の放電可能時間との関係を示す情報に、前記サーバ装置のシャットダウン時の必要電力を適用して求め、前記蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間に対する、前記サーバ装置へのバックアップが必要な時間の割合に応じて、停電時への対応のために必要なＳＯＣを、前記電源装置の停電時に前記サーバ装置に必要電力を供給できるか否かの判定基準値として算出する基準値算出部と、前記蓄電池のＳＯＣが、前記判定基準値よりも多いか否かを判定する蓄電量判定部と、前記電源装置が前記サーバ装置に電力を供給している状態で、前記電源能力判定部が、前記供給可能電力が前記必要電力に対して不足していると判定し、かつ、前記蓄電量判定部が、前記ＳＯＣが前記判定基準値よりも多いと判定した場合、前記蓄電池に放電を行わせる充放電制御部と、を備える。 According to the first aspect of the present invention, the power supply system includes a power supply device, a storage battery that supplies power to the server device in the event of a power failure of the power supply device, and the server device shown in the required power information from the server device. A power supply capacity determination unit that determines whether or not the power that can be supplied from the power supply device is insufficient for the required power of the server device based on the required power and the measured value of the power output by the power supply device. And, when the storage battery is fully charged, the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device is used as information indicating the relationship between the power consumption of the server device and the dischargeable time of the storage battery. Obtained by applying the required power at the time of shutting down the server device, and when the storage battery is fully charged, it is necessary to back up to the server device for the time during which the required power of the server device can be supplied at the time of power failure of the power supply device. A reference value calculation unit that calculates the SOC required for responding to a power failure according to the ratio of time, as a criterion value for determining whether or not the required power can be supplied to the server device in the event of a power failure of the power supply device. If, SOC of the storage battery, the power storage amount determining unit determines whether more than the determination reference value, in a state in which the power supply is supplying power to the server device, the power supply capability determination section When it is determined that the supplyable power is insufficient with respect to the required power and the storage amount determination unit determines that the SOC is larger than the determination reference value, the storage battery is discharged. It is equipped with a charge / discharge control unit.

本発明の第２の態様によれば、制御装置は、サーバ装置からの要求電力情報に示される前記サーバ装置の必要電力と、電源装置が出力する電力の測定値とに基づいて、前記電源装置からの供給可能電力がサーバ装置の必要電力に対して不足しているか否かを判定する電源能力判定部と、前記電源装置の停電時にサーバ装置に電力を供給する蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間を、前記サーバ装置の消費電力と前記蓄電池の放電可能量との関係を示す情報に、前記サーバ装置のシャットダウン時の必要電力を適用して求め、前記蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間に対する、前記サーバ装置へのバックアップが必要な時間の割合に応じて、停電時への対応のために必要なＳＯＣを、前記電源装置の停電時に前記サーバ装置に必要電力を供給できるか否かの判定基準値として算出する基準値算出部と、電源装置の停電時に前記サーバ装置に電力を供給する蓄電池のＳＯＣが、前記判定基準値よりも多いか否かを判定する蓄電量判定部と、前記電源装置が前記サーバ装置に電力を供給している状態で、前記電源能力判定部が、前記供給可能電力が前記必要電力に対して不足していると判定し、かつ、前記蓄電量判定部が、前記ＳＯＣが前記判定基準値よりも多いと判定した場合、前記蓄電池に放電を行わせる充放電制御部と、を備える。 According to the second aspect of the present invention, the control device is the power supply device based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device. wherein when available power and the determined power supply capability determination section whether or not insufficient for the required power of the server apparatus, the storage battery supplies power to the server device when a power failure of the power supply is fully charged from The time required to supply the required power of the server device during a power failure of the power supply device is applied to the information indicating the relationship between the power consumption of the server device and the dischargeable amount of the storage battery, and the required power at the time of shutting down the server device is applied. When the storage battery is fully charged, the time required for backup to the server device is proportional to the time required for supplying the required power of the server device at the time of power failure of the power supply device. A reference value calculation unit that calculates the SOC required for the response as a criterion value for determining whether or not the required power can be supplied to the server device in the event of a power failure of the power supply device, and the server device in the event of a power failure of the power supply device. SOC of a storage battery for supplying power, wherein the determining the storage amount determining unit that determines whether more than the determination reference value, in a state in which the power supply is supplying power to the server device, the power supply capability determination unit However, when it is determined that the supplyable power is insufficient with respect to the required power, and the storage amount determination unit determines that the SOC is larger than the determination reference value, the storage battery is discharged. It is provided with a charge / discharge control unit for performing the operation.

本発明の第３の態様によれば、制御方法は、サーバ装置からの要求電力情報に示される前記サーバ装置の必要電力と、電源装置が出力する電力の測定値とに基づいて、前記電源装置からの供給可能電力がサーバ装置の必要電力に対して不足しているか否かを判定し、前記電源装置の停電時にサーバ装置に電力を供給する蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間を、前記サーバ装置の消費電力と前記蓄電池の放電可能量との関係を示す情報に、前記サーバ装置のシャットダウン時の必要電力を適用して求め、前記蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間に対する、前記サーバ装置へのバックアップが必要な時間の割合に応じて、停電時への対応のために必要なＳＯＣを、前記電源装置の停電時に前記サーバ装置に必要電力を供給できるか否かの判定基準値として算出し、前記電源装置の停電時に前記サーバ装置に電力を供給する蓄電池のＳＯＣが、前記判定基準値よりも多いか否かを判定し、前記電源装置が前記サーバ装置に電力を供給している状態で、前記供給可能電力が前記必要電力に対して不足していると判定し、かつ、前記ＳＯＣが前記判定基準値よりも多いと判定した場合、前記蓄電池に放電を行わせる、ことを含む。 According to the third aspect of the present invention, the control method is based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device. available power from it is determined whether or not insufficient for the required power of the server apparatus, when a power failure of the power supply in case of power failure the server storage battery fully charged for supplying power to the said power supply device The time required for supplying the required power of the server device is obtained by applying the required power at the time of shutting down the server device to the information indicating the relationship between the power consumption of the server device and the dischargeable amount of the storage battery. To respond to a power outage according to the ratio of the time required for backup to the server device to the time required to supply the required power of the server device in the event of a power failure when the storage battery is fully charged. The required SOC is calculated as a criterion value for determining whether or not the required power can be supplied to the server device in the event of a power failure of the power supply device, and the SOC of the storage battery that supplies power to the server device in the event of a power failure of the power supply device determines. It is determined whether or not the power is greater than the determination reference value, and it is determined that the power that can be supplied is insufficient for the required power while the power supply device is supplying power to the server device. Moreover, when it is determined that the SOC is larger than the determination reference value, the storage battery is made to discharge.

本発明の第４の態様によれば、プログラムは、コンピュータに、サーバ装置からの要求電力情報に示される前記サーバ装置の必要電力と、電源装置が出力する電力の測定値とに基づいて、前記電源装置からの供給可能電力がサーバ装置の必要電力に対して不足しているか否かを判定させ、前記電源装置の停電時にサーバ装置に電力を供給する蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間を、前記サーバ装置の消費電力と前記蓄電池の放電可能量との関係を示す情報に、前記サーバ装置のシャットダウン時の必要電力を適用して求め、前記蓄電池が満充電の場合に前記電源装置の停電時における前記サーバ装置の必要電力を供給できる時間に対する、前記サーバ装置へのバックアップが必要な時間の割合に応じて、停電時への対応のために必要なＳＯＣを、前記電源装置の停電時に前記サーバ装置に必要電力を供給できるか否かの判定基準値として算出させ、前記電源装置の停電時に前記サーバ装置に電力を供給する蓄電池のＳＯＣが、前記判定基準値よりも多いか否かを判定させ、前記電源装置が前記サーバ装置に電力を供給している状態で、前記供給可能電力が前記必要電力に対して不足していると判定し、かつ、前記ＳＯＣが前記判定基準値よりも多いと判定した場合、前記蓄電池に放電を行わせるよう前記蓄電池を制御させる、ためのプログラムである。 According to the fourth aspect of the present invention, the program tells the computer based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device. available power from the power supply to determine whether or not insufficient for the required power of the server apparatus, the power supply device when the storage battery is fully charged supplies electric power to the server device when a power failure of the power supply device The time during which the required power of the server device can be supplied in the event of a power failure is obtained by applying the required power at the time of shutting down the server device to the information indicating the relationship between the power consumption of the server device and the dischargeable amount of the storage battery. When the storage battery is fully charged, the response to the power failure occurs according to the ratio of the time required for backup to the server device to the time required to supply the required power of the server device at the time of the power failure of the power supply device. The SOC required for this is calculated as a criterion value for determining whether or not the required power can be supplied to the server device in the event of a power failure of the power supply device, and the SOC of the storage battery that supplies power to the server device in the event of a power failure of the power supply device. decision but to determine whether the criterion value greater than, in a state where the power supply is supplying power to the server device, and the available electric power is insufficient for the required power However, it is a program for controlling the storage battery so that the storage battery is discharged when it is determined that the SOC is larger than the determination reference value.

この発明によれば、停電時に蓄電池から電力を供給する電源に関して、停電時の電力供給に支障をきたさずに通常時にも電力を供給することができる。 According to the present invention, with respect to the power source for supplying electric power from the storage battery at the time of a power failure, the electric power can be supplied even at a normal time without disturbing the power supply at the time of a power failure.

本発明の実施形態に係る電力供給システムの機能構成例を示す概略ブロック図である。It is a schematic block diagram which shows the functional structure example of the electric power supply system which concerns on embodiment of this invention. 制御装置の機能構成例を示す概略ブロック図である。It is a schematic block diagram which shows the functional composition example of a control device. 蓄電池が満充電の場合の、負荷の消費電力と蓄電池の放電可能時間との関係の例を示すグラフである。It is a graph which shows the example of the relationship between the power consumption of a load, and the dischargeable time of a storage battery when the storage battery is fully charged. 制御装置が行う処理の手順の例を示すフローチャートである。It is a flowchart which shows the example of the procedure of the processing performed by a control device. 制御装置に代えて蓄電池がバックアップ時間を記憶する場合の電力供給システムの機能構成例を示す概略ブロック図である。It is a schematic block diagram which shows the functional configuration example of the power supply system in the case where a storage battery stores a backup time instead of a control device. 制御装置に代えて蓄電池がバックアップ時間を記憶する場合の制御装置の機能構成例を示す概略ブロック図である。It is a schematic block diagram which shows the functional configuration example of the control device in the case where a storage battery stores a backup time instead of a control device. 本発明に係る電力供給システムの最小構成の例を示す図である。It is a figure which shows the example of the minimum structure of the power supply system which concerns on this invention. 本発明に係る制御装置の最小構成の例を示す図である。It is a figure which shows the example of the minimum structure of the control device which concerns on this invention.

以下、本発明の実施形態を説明するが、以下の実施形態は請求の範囲にかかる発明を限定するものではない。また、実施形態の中で説明されている特徴の組み合わせの全てが発明の解決手段に必須であるとは限らない。
図１は、本発明の実施形態に係る電力供給システムの機能構成例を示す概略ブロック図である。図１に示すように、電力供給システム１００は、電源装置１１０と、蓄電池１２０と、制御装置２００とを備える。 Hereinafter, embodiments of the present invention will be described, but the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential to the means of solving the invention.
FIG. 1 is a schematic block diagram showing a functional configuration example of the power supply system according to the embodiment of the present invention. As shown in FIG. 1, the power supply system 100 includes a power supply device 110, a storage battery 120, and a control device 200.

電力供給システム１００は、サーバ装置９００に電力を供給するシステムであり無停電電源装置（Uninterruptible Power Supply；ＵＰＳ）として機能する。
電力供給システム１００が電力を供給する対象及び個数は、特定の対象及び個数に限定されない。以下では、電力供給システム１００が電力を供給する対象を負荷とも称する。
一方、電力供給システム１００は、図１に示すサーバ装置９００のように停止時にシャットダウン時間を要する装置に対応可能である。電源装置１１０からの電力供給を行えなくなると、電力供給システム１００は、サーバ装置９００にシャットダウン信号を出力する。シャットダウン信号を受けたサーバ装置９００がシャットダウンを完了するのに必要な時間の間、電力供給システム１００は、蓄電池１２０を用いて電力供給を維持する。
また、電力供給システム１００は、電源装置１１０からの供給電力が不足している場合、蓄電池１２０を用いて不足電力を補う。 The power supply system 100 is a system that supplies power to the server device 900 and functions as an uninterruptible power supply (UPS).
The target and the number of power supplied by the power supply system 100 are not limited to the specific target and the number. Hereinafter, the target to which the power supply system 100 supplies power is also referred to as a load.
On the other hand, the power supply system 100 can be used for a device such as the server device 900 shown in FIG. 1, which requires a shutdown time when stopped. When the power supply from the power supply device 110 cannot be supplied, the power supply system 100 outputs a shutdown signal to the server device 900. The power supply system 100 maintains the power supply using the storage battery 120 for the time required for the server device 900 that has received the shutdown signal to complete the shutdown.
Further, when the power supply from the power supply device 110 is insufficient, the power supply system 100 uses the storage battery 120 to make up for the insufficient power.

電源装置１１０は、例えば商用電源など電力供給システム１００の外部の電源から電力の供給を受け、サーバ装置９００に電力を供給する。電力供給システム１００が備える電源装置１１０の数は、図１に示す３つに限らず１つ以上であればよい。
図１では、電源装置１１０が、外部電源からの交流（ＡＣ）電力を、サーバ装置９００の動作電圧の直流（ＤＣ）電力に変換する場合の例を示している。但し、電源装置１１０が行う電力の変換は、特定のものに限らない。例えば、サーバ装置９００が商用電力で動作可能な場合、電源装置１１０が電力の変換を行わずに停電の検出のみを行うようにしてもよい。 The power supply device 110 receives power from an external power source of the power supply system 100 such as a commercial power supply, and supplies power to the server device 900. The number of power supply devices 110 included in the power supply system 100 is not limited to the three shown in FIG. 1, and may be one or more.
FIG. 1 shows an example in which the power supply device 110 converts alternating current (AC) power from an external power source into direct current (DC) power of the operating voltage of the server device 900. However, the power conversion performed by the power supply device 110 is not limited to a specific one. For example, when the server device 900 can operate with commercial power, the power supply device 110 may only detect a power failure without converting the power.

ここでいう停電は、電源装置１１０が電力を出力しないことである。典型的には、外部電力からの電力供給が無いことが停電の例に該当する。電源装置１１０が故障した場合など、複数の電源装置１１０うちの一部が電力を出力せずサーバ装置９００の必要電力の供給を維持できなくなった場合も、電力供給システム１００が停電として検出するようにしてもよい。停電を、電源装置１１０の停電とも称する。
電力供給システム１００が停電を検出する方法は、特定の方法に限定されない。例えば、電源装置１１０が停電を検出するようにしてもよい。あるいは、電力供給システム１００が停電検出用のセンサを備えるようにしてもよい。
以下では、停電していない状態を通常時と称する。 The power failure here means that the power supply unit 110 does not output electric power. Typically, the lack of power supply from external power corresponds to the example of a power outage. Even if some of the plurality of power supply devices 110 do not output power and cannot maintain the required power supply of the server device 900, such as when the power supply device 110 fails, the power supply system 100 detects it as a power failure. You may do it. The power failure is also referred to as a power failure of the power supply device 110.
The method by which the power supply system 100 detects a power failure is not limited to a specific method. For example, the power supply unit 110 may detect a power failure. Alternatively, the power supply system 100 may include a sensor for detecting a power failure.
Hereinafter, the state in which there is no power failure is referred to as a normal time.

蓄電池１２０は、電源装置１１０のバックアップ電源として機能する。
蓄電池１２０は、停電時に電源装置１１０に代わってサーバ装置９００に電力を供給する。この場合、蓄電池１２０は、バックアップ時間の間、電力の供給を維持する。ここでいうバックアップ時間は、電源装置１１０の停電時に蓄電池１２０がサーバ装置９００に電力を供給する必要時間である。バックアップ時間は、サーバ装置９００がシャットダウンに要する時間以上の時間に設定される。
また、蓄電池１２０は、電源装置１１０からサーバ装置９００への供給電力が不足している場合、停電時の必要電力を確保できる範囲内で不足分の電力をサーバ装置９００へ供給する。 The storage battery 120 functions as a backup power source for the power supply device 110.
The storage battery 120 supplies electric power to the server device 900 in place of the power supply device 110 in the event of a power failure. In this case, the storage battery 120 maintains the power supply during the backup time. The backup time referred to here is the time required for the storage battery 120 to supply electric power to the server device 900 in the event of a power failure of the power supply device 110. The backup time is set to be longer than the time required for the server device 900 to shut down.
Further, when the power supply from the power supply device 110 to the server device 900 is insufficient, the storage battery 120 supplies the insufficient power to the server device 900 within a range in which the required power at the time of a power failure can be secured.

電源装置１１０からのサーバ装置９００への供給電力に余裕がある場合、蓄電池１２０は蓄電池１２０自らの充電を行う。
蓄電池１２０の充放電を切り替える方法は、特定音方法に限定されない。例えば、蓄電池１２０が充放電切替を行うインバータを備えるようにしてもよい。あるいは、蓄電池１２０がフロート充電方式で充放電を行うようにし、停電時の必要電力を確保できていない状態ではスイッチ等により蓄電池１２０からの放電を抑制するようにしてもよい。 When there is a margin in the power supplied from the power supply device 110 to the server device 900, the storage battery 120 charges the storage battery 120 itself.
The method of switching the charge / discharge of the storage battery 120 is not limited to the specific sound method. For example, the storage battery 120 may be provided with an inverter that switches between charging and discharging. Alternatively, the storage battery 120 may be charged and discharged by a float charging method, and the discharge from the storage battery 120 may be suppressed by a switch or the like in a state where the required power at the time of a power failure cannot be secured.

制御装置２００は、電力供給システム１００の各部を制御する。特に、制御装置２００は、電源装置１１０からの供給電力がサーバ装置９００の必要電力に対して不足していることを検出した場合、蓄電池１２０の状態に基づいて、蓄電池１２０に放電を行わせるか否かを決定する。
また、制御装置２００は、停電を検出した場合、サーバ装置９００へシャットダウン信号を送信する。ここでいうシャットダウン信号は、サーバ装置９００に対してシャットダウンを行うよう指示する信号である。
制御装置２００は、例えばコンピュータを用いて構成される。 The control device 200 controls each part of the power supply system 100. In particular, when the control device 200 detects that the power supplied from the power supply device 110 is insufficient for the required power of the server device 900, does the control device 200 cause the storage battery 120 to discharge based on the state of the storage battery 120? Decide whether or not.
Further, when the control device 200 detects a power failure, the control device 200 transmits a shutdown signal to the server device 900. The shutdown signal referred to here is a signal instructing the server device 900 to perform shutdown.
The control device 200 is configured by using, for example, a computer.

サーバ装置９００は、電力供給システム１００からの電力供給を受けて動作する。また、サーバ装置９００は、制御装置２００からのシャットダウン信号を受信するとサーバ装置９００自らのシャットダウン処理を行う。
電力ラインＷ１１１は、電源装置１１０および蓄電池１２０とサーバ装置９００とを接続する電力線である。電源装置１１０及び蓄電池１２０は、電力ラインＷ１１１を介してサーバ装置９００へ電力を供給する。 The server device 900 operates by receiving power supply from the power supply system 100. Further, when the server device 900 receives the shutdown signal from the control device 200, the server device 900 performs a shutdown process of the server device 900 itself.
The power line W111 is a power line that connects the power supply device 110, the storage battery 120, and the server device 900. The power supply device 110 and the storage battery 120 supply electric power to the server device 900 via the power line W111.

第一制御バスＷ１２１は、電源装置１１０及び蓄電池１２０と制御装置２００との間の通信経路である。第一制御バスＷ１２１は有線の通信経路であってもよいし、無線の通信経路であってもよい。電源装置１１０が停電を検出する場合、制御装置２００は、第一制御バスＷ１２１を介して電源装置１１０から停電の有無を示す信号を取得する。また、制御装置２００は、蓄電池１２０の充放電を指示する制御信号を蓄電池１２０へ出力する。
第二制御バスＷ１３１は、制御装置２００とサーバ装置９００との間の通信経路である、第二制御バスＷ１３１は有線の通信経路であってもよいし、無線の通信経路であってもよい。制御装置２００は、停電を検知した場合、第二制御バスＷ１３１を介してサーバ装置９００へシャットダウン信号を送信する。 The first control bus W121 is a communication path between the power supply device 110 and the storage battery 120 and the control device 200. The first control bus W121 may be a wired communication path or a wireless communication path. When the power supply device 110 detects a power failure, the control device 200 acquires a signal indicating the presence or absence of a power failure from the power supply device 110 via the first control bus W121. Further, the control device 200 outputs a control signal instructing charging / discharging of the storage battery 120 to the storage battery 120.
The second control bus W131 is a communication path between the control device 200 and the server device 900. The second control bus W131 may be a wired communication path or a wireless communication path. When the control device 200 detects a power failure, the control device 200 transmits a shutdown signal to the server device 900 via the second control bus W131.

図２は、制御装置２００の機能構成例を示す概略ブロック図である。図２の例で、制御装置２００は、通信部２１０と、操作入力部２２０と、表示部２３０と、記憶部２８０と、制御部２９０とを備える。記憶部２８０は、バックアップ時間記憶部２８１を備える。制御部２９０は、電源能力判定部２９１と、基準値算出部２９２と、蓄電量判定部２９３と、充放電制御部２９４と、削減指示部２９５とを備える。 FIG. 2 is a schematic block diagram showing a functional configuration example of the control device 200. In the example of FIG. 2, the control device 200 includes a communication unit 210, an operation input unit 220, a display unit 230, a storage unit 280, and a control unit 290. The storage unit 280 includes a backup time storage unit 281. The control unit 290 includes a power supply capacity determination unit 291, a reference value calculation unit 292, a storage amount determination unit 293, a charge / discharge control unit 294, and a reduction instruction unit 295.

通信部２１０は、他の機器と通信を行う。
操作入力部２２０は、例えば押ボタン等の入力デバイスを備え、ユーザ操作を受ける。例えば、操作入力部２２０は、バックアップ時間を入力するユーザ操作を受ける。
但し、制御装置２００がサーバ装置９００のバックアップ時間の情報を取得する方法は、ユーザが入力する方法に限らない。例えば、制御装置２００がバックアップ時間を予め記憶しておくようにしてもよい。あるいは、サーバ装置９００が自らのシャットダウンに必要な時間をバックアップ時間として予め記憶しておき、バックアップ時間を示す情報を制御装置２００へ送信するようにしてもよい。 The communication unit 210 communicates with other devices.
The operation input unit 220 includes an input device such as a push button, and receives a user operation. For example, the operation input unit 220 receives a user operation for inputting a backup time.
However, the method in which the control device 200 acquires the backup time information of the server device 900 is not limited to the method input by the user. For example, the control device 200 may store the backup time in advance. Alternatively, the server device 900 may store in advance the time required for its own shutdown as the backup time, and transmit the information indicating the backup time to the control device 200.

表示部２３０は、例えば液晶パネル等の表示デバイスを備え、各種情報を表示する。
記憶部２８０は、制御装置２００が備える記憶デバイスを用いて構成され、各種情報を記憶する。
バックアップ時間記憶部２８１は、バックアップ時間を記憶する。
制御部２９０は、制御装置２００の各部を制御して各種処理を実行する。制御部２９０は、例えば制御装置２００が備えるＣＰＵ（Central Processing Unit、中央処理装置）が、記憶部２８０からプログラムを読み出して実行することで構成される。 The display unit 230 includes a display device such as a liquid crystal panel, and displays various information.
The storage unit 280 is configured by using the storage device included in the control device 200, and stores various information.
The backup time storage unit 281 stores the backup time.
The control unit 290 controls each unit of the control device 200 to execute various processes. The control unit 290 is configured by, for example, a CPU (Central Processing Unit) included in the control device 200 reading a program from the storage unit 280 and executing the program.

電源能力判定部２９１は、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足しているか否かを判定する。例えば、通信部２１０が、サーバ装置９００の必要電力を示す要求電力情報をサーバ装置９００から受信する。そして、電源能力判定部２９１は、電源装置１１０が出力する電力の測定値とサーバ装置９００の必要電力を比較する。電源装置１１０が出力する電力の測定値がサーバ装置９００の必要電力よりも小さい場合、電源能力判定部２９１は、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足していると判定する。 The power supply capacity determination unit 291 determines whether or not the power that can be supplied from the power supply device 110 is insufficient for the required power of the server device 900. For example, the communication unit 210 receives the required power information indicating the required power of the server device 900 from the server device 900. Then, the power supply capacity determination unit 291 compares the measured value of the power output by the power supply device 110 with the required power of the server device 900. When the measured value of the power output by the power supply device 110 is smaller than the required power of the server device 900, the power supply capacity determination unit 291 is insufficient in the power that can be supplied from the power supply device 110 with respect to the required power of the server device 900. It is determined that there is.

基準値算出部２９２は、サーバ装置９００の消費電力（必要電力）とバックアップ時間とに基づいて判定基準値を算出する。ここでいう判定基準値は、電源装置１１０の停電時にサーバ装置９００に必要電力を供給できるか否かの判定基準値である。判定基準値は、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足している場合に、蓄電池１２０に放電を行わせるか否かを決定するために用いられる。 The reference value calculation unit 292 calculates the determination reference value based on the power consumption (required power) of the server device 900 and the backup time. The determination reference value referred to here is a determination reference value as to whether or not the required power can be supplied to the server device 900 in the event of a power failure of the power supply device 110. The determination reference value is used to determine whether or not to discharge the storage battery 120 when the power that can be supplied from the power supply device 110 is insufficient for the required power of the server device 900.

図３は、蓄電池１２０が満充電の場合の、負荷の消費電力と蓄電池１２０の放電可能時間との関係の例を示すグラフである。図３に示すグラフの横軸は、負荷の消費電力を示す。縦軸は、蓄電池１２０の放電可能時間を示す。
例えば、バックアップ時間記憶部２８１が、バックアップ時間の情報に加えて、負荷の消費電力と蓄電池１２０の放電可能時間との関係の例を示す情報を記憶しておく。基準値算出部２９２は、これらの情報を用いて判定基準値を算出する。 FIG. 3 is a graph showing an example of the relationship between the power consumption of the load and the dischargeable time of the storage battery 120 when the storage battery 120 is fully charged. The horizontal axis of the graph shown in FIG. 3 indicates the power consumption of the load. The vertical axis shows the dischargeable time of the storage battery 120.
For example, the backup time storage unit 281 stores, in addition to the backup time information, information showing an example of the relationship between the power consumption of the load and the dischargeable time of the storage battery 120. The reference value calculation unit 292 calculates the determination reference value using this information.

さらに例えば、サーバ装置９００のシャットダウン時の必要電力が１２００ワット（Ｗ）であり、基準値算出部２９２が図３に示される情報を参照して、蓄電池１２０が１２００ワットの電力を出力できる時間を３６０秒と読み取ったとする。バックアップ時間記憶部２８１がバックアップ時間を１８０秒と記憶している場合、基準値算出部２９２は、停電時への対応のために必要なＳＯＣを、１８０／３６０＝５０％と算出する。 Further, for example, the required power at the time of shutting down the server device 900 is 1200 watts (W), and the reference value calculation unit 292 refers to the information shown in FIG. 3 to determine the time during which the storage battery 120 can output 1200 watts of power. It is assumed that it is read as 360 seconds. When the backup time storage unit 281 stores the backup time as 180 seconds, the reference value calculation unit 292 calculates the SOC required for responding to a power failure as 180/360 = 50%.

蓄電量判定部２９３は、蓄電池１２０の蓄電量が、基準値算出部２９２が算出した判定基準値よりも多いか否かを判定する。蓄電量判定部２９３が判定に用いる指標値は、特定の指標値に限定されない。例えば、基準値算出部２９２が、ＳＯＣ（State Of Charge、充電率）の判定基準値を算出し、蓄電量判定部２９３が、蓄電池１２０のＳＯＣと判定基準値とを比較によって判定を行うようにしてもよい。 The storage amount determination unit 293 determines whether or not the storage amount of the storage battery 120 is larger than the determination reference value calculated by the reference value calculation unit 292. The index value used for the determination by the stored amount determination unit 293 is not limited to a specific index value. For example, the reference value calculation unit 292 calculates the SOC (State Of Charge) determination reference value, and the storage amount determination unit 293 makes a determination by comparing the SOC of the storage battery 120 with the determination reference value. You may.

充放電制御部２９４は、蓄電池１２０の充放電を制御する。特に、充放電制御部２９４は、電源装置１１０がサーバ装置９００に電力を供給している状態で、電源能力判定部２９１が、電源装置１１０の供給可能電力がサーバ装置９００の必要電力に対して不足していると判定し、かつ、蓄電量判定部２９３が、蓄電池１２０の蓄電量が判定基準値よりも多いと判定した場合、蓄電池１２０に放電を行わせる。すなわち、充放電制御部２９４は、通常時に、電源装置１１０からの供給電力が不足しており、かつ、蓄電池１２０の蓄電量が停電時の必要量よりも多い場合、蓄電池１２０に放電させることで不足分の電力をサーバ装置９００に供給させる。 The charge / discharge control unit 294 controls the charge / discharge of the storage battery 120. In particular, in the charge / discharge control unit 294, while the power supply device 110 is supplying power to the server device 900, the power supply capacity determination unit 291 tells that the power that can be supplied by the power supply device 110 is relative to the required power of the server device 900. When it is determined that the storage amount is insufficient and the storage amount determination unit 293 determines that the storage amount of the storage battery 120 is larger than the determination reference value, the storage battery 120 is discharged. That is, when the charge / discharge control unit 294 normally has insufficient power supply from the power supply device 110 and the storage amount of the storage battery 120 is larger than the required amount at the time of a power failure, the charge / discharge control unit 294 discharges the storage battery 120. The insufficient power is supplied to the server device 900.

一方、充放電制御部２９４は、電源装置１１０がサーバ装置９００に電力を供給している状態で、電源能力判定部２９１が、電源装置１１０の供給可能電力がサーバ装置９００の必要電力に対して不足していると判定し、かつ、蓄電量判定部２９３が、蓄電池１２０の蓄電量が判定基準値以下であると判定した場合、蓄電池１２０からの放電を抑制する。すなわち、充放電制御部２９４は、通常時に、電源装置１１０からの供給電力が不足しており、かつ、蓄電池１２０の蓄電量が停電時の必要量以下である場合、蓄電池１２０に放電を行わせない。 On the other hand, in the charge / discharge control unit 294, while the power supply device 110 is supplying power to the server device 900, the power supply capacity determination unit 291 determines that the power that can be supplied by the power supply device 110 is relative to the required power of the server device 900. When it is determined that the storage amount is insufficient and the storage amount determination unit 293 determines that the storage amount of the storage battery 120 is equal to or less than the determination reference value, the discharge from the storage battery 120 is suppressed. That is, when the charge / discharge control unit 294 normally has insufficient power supply from the power supply device 110 and the storage amount of the storage battery 120 is less than the required amount at the time of a power failure, the charge / discharge control unit 294 causes the storage battery 120 to discharge. No.

削減指示部２９５は、サーバ装置９００の電力使用に関する指示を、通信部２１０を介してサーバ装置９００に送信する。サーバ装置９００は、電力供給システム１００の電力を使用したい場合、必要電力の通知を含む電力使用要求を制御装置２００に送信する。サーバ装置９００は、削減指示部２９５が許可した場合のみ電力供給システム１００の電力を使用する。また、削減指示部２９５が電力の使用削減をサーバ装置９００に指示した場合、サーバ装置９００は、指示された電力の使用を削減する。 The reduction instruction unit 295 transmits an instruction regarding the power usage of the server device 900 to the server device 900 via the communication unit 210. When the server device 900 wants to use the power of the power supply system 100, the server device 900 transmits a power usage request including a notification of the required power to the control device 200. The server device 900 uses the power of the power supply system 100 only when the reduction instruction unit 295 permits. Further, when the reduction instruction unit 295 instructs the server device 900 to reduce the use of electric power, the server device 900 reduces the use of the instructed electric power.

特に、削減指示部２９５は、電源装置１１０及び蓄電池１２０の両方が負荷に電力を供給している状態で、蓄電量判定部２９３が、蓄電池１２０の蓄電量が判定基準値以下であると判定した場合、サーバ装置９００に消費電力削減を指示する。すなわち、充放電制御部２９４は、通常時に、電源装置１１０からの供給電力の不足分を蓄電池１２０が放電している状態で、蓄電池１２０の蓄電量が停電時の必要量以下になると、サーバ装置９００に消費電力削減を指示する。この場合、充放電制御部２９４が蓄電池１２０の放電を停止させるので、サーバ装置９００に放電停止に対応させるためである。 In particular, the reduction instruction unit 295 determines that the storage amount of the storage battery 120 is equal to or less than the determination reference value while both the power supply device 110 and the storage battery 120 are supplying power to the load. In this case, the server device 900 is instructed to reduce the power consumption. That is, in the normal state, the charge / discharge control unit 294 discharges the shortage of the power supplied from the power supply device 110, and when the storage amount of the storage battery 120 becomes equal to or less than the required amount at the time of a power failure, the server device Instruct 900 to reduce power consumption. In this case, since the charge / discharge control unit 294 stops the discharge of the storage battery 120, the server device 900 is made to correspond to the discharge stop.

次に、図４を参照して電力供給システム１００の動作について説明する。
図４は、制御装置２００が行う処理の手順の例を示すフローチャートである。制御装置２００は、例えば電力供給システム１００がサーバ装置９００に電力を供給する間、図４の処理を繰り返す。
（ステップＳ１０１）
通信部２１０が、サーバ装置９００から要求電力情報を取得する。ここでいう要求電力情報は、サーバ装置９００が電力供給システム１００に要求する電力を示す情報である。
ステップＳ１０１の後、ステップＳ１０２へ進む。 Next, the operation of the power supply system 100 will be described with reference to FIG.
FIG. 4 is a flowchart showing an example of a processing procedure performed by the control device 200. The control device 200 repeats the process of FIG. 4, for example, while the power supply system 100 supplies power to the server device 900.
(Step S101)
The communication unit 210 acquires the required power information from the server device 900. The required power information referred to here is information indicating the power required by the server device 900 to the power supply system 100.
After step S101, the process proceeds to step S102.

（ステップＳ１０２）
電源能力判定部２９１は、サーバ装置９００が要求する電力を電源装置１１０から供給可能か否かを判定する。供給可能であると判定した場合（ステップＳ１０２：ＹＥＳ）、ステップＳ１１１へ進む。供給不可であると判定した場合（ステップＳ１０２：ＮＯ）、ステップＳ１２１へ進む。 (Step S102)
The power supply capacity determination unit 291 determines whether or not the power required by the server device 900 can be supplied from the power supply device 110. If it is determined that the supply is possible (step S102: YES), the process proceeds to step S111. If it is determined that the supply is not possible (step S102: NO), the process proceeds to step S121.

（ステップＳ１１１）
削減指示部２９５は、要求された電力の使用を許可する通知を、通信部２１０を介してサーバ装置９００に送信する。サーバ装置９００は、この通知に従って電力供給システム１００から電力の供給を受けて動作する。
ステップＳ１１１の後、図４の処理を終了する。 (Step S111)
The reduction instruction unit 295 transmits a notification permitting the use of the requested electric power to the server device 900 via the communication unit 210. The server device 900 operates by receiving power supplied from the power supply system 100 in accordance with this notification.
After step S111, the process of FIG. 4 is terminated.

（ステップＳ１２１）
基準値算出部２９２が判定基準値を算出する。例えば、図３を参照して説明したように、基準値算出部２９２は、負荷の消費電力と蓄電池１２０の放電可能時間との関係の例を示す情報に、サーバ装置９００のシャットダウン時の必要電力を適用して、蓄電池１２０がこの必要電力を出力できる時間を求める。そして、サーバ装置９００は、得られた時間とバックアップ時間との比に基づいて、判定基準値をＳＯＣにて算出する。
ステップＳ１２１の後、ステップＳ１２２へ進む。 (Step S121)
The reference value calculation unit 292 calculates the determination reference value. For example, as described with reference to FIG. 3, the reference value calculation unit 292 provides information showing an example of the relationship between the power consumption of the load and the dischargeable time of the storage battery 120, and the required power at the time of shutting down the server device 900. Is applied to determine the time during which the storage battery 120 can output this required power. Then, the server device 900 calculates the determination reference value by SOC based on the ratio of the obtained time and the backup time.
After step S121, the process proceeds to step S122.

（ステップＳ１２２）
蓄電量判定部２９３は、蓄電池１２０の蓄電量が判定基準値よりも大きいか否かを判定する。蓄電量が判定基準値よりも大きいと判定した場合（ステップＳ１２２：ＹＥＳ）、ステップＳ１３１へ進む。蓄電量が判定基準値以下であると判定した場合（ステップＳ１２２：ＮＯ）、ステップＳ１５１へ進む。 (Step S122)
The storage amount determination unit 293 determines whether or not the storage amount of the storage battery 120 is larger than the determination reference value. If it is determined that the amount of stored electricity is larger than the determination reference value (step S122: YES), the process proceeds to step S131. If it is determined that the amount of stored electricity is equal to or less than the determination reference value (step S122: NO), the process proceeds to step S151.

（ステップＳ１３１）
充放電制御部２９４は、蓄電池１２０に電源装置１１０からの電力の不足分の放電を開始させる。
ステップＳ１３１の後、ステップＳ１３２へ進む。
（ステップＳ１３２）
削減指示部２９５は、要求された電力の使用を許可する通知を、通信部２１０を介してサーバ装置９００に送信する。サーバ装置９００は、この通知に従って電力供給システム１００から電力の供給を受けて動作する。
ステップＳ１３２の後、ステップＳ１３３へ進む。 (Step S131)
The charge / discharge control unit 294 causes the storage battery 120 to start discharging the shortage of power from the power supply device 110.
After step S131, the process proceeds to step S132.
(Step S132)
The reduction instruction unit 295 transmits a notification permitting the use of the requested electric power to the server device 900 via the communication unit 210. The server device 900 operates by receiving power supplied from the power supply system 100 in accordance with this notification.
After step S132, the process proceeds to step S133.

（ステップＳ１３３）
蓄電量判定部２９３は、蓄電池１２０の蓄電量が判定基準値よりも大きいか否かを判定する。蓄電量が判定基準値よりも大きいと判定した場合（ステップＳ１３３：ＹＥＳ）、ステップＳ１３３へ戻る。すなわち、制御装置２００は、蓄電池１２０の蓄電量が判定基準値以下になるまで、蓄電池１２０の充放電及びサーバ装置９００の消費電力をそのまま維持させる。
一方、蓄電量が判定基準値以下であると判定した場合（ステップＳ１３３：ＮＯ）、ステップＳ１４１へ進む。 (Step S133)
The storage amount determination unit 293 determines whether or not the storage amount of the storage battery 120 is larger than the determination reference value. When it is determined that the amount of stored electricity is larger than the determination reference value (step S133: YES), the process returns to step S133. That is, the control device 200 keeps the charge / discharge of the storage battery 120 and the power consumption of the server device 900 as it is until the stored amount of the storage battery 120 becomes equal to or less than the determination reference value.
On the other hand, when it is determined that the amount of stored electricity is equal to or less than the determination reference value (step S133: NO), the process proceeds to step S141.

（ステップＳ１４１）
削減指示部２９５は、サーバ装置９００に対して、蓄電池１２０が放電している電力の削減を指示する。
ステップＳ１４１の後、ステップＳ１４２へ進む。
（ステップＳ１４２）
充放電制御部２９４は、蓄電池１２０の放電を停止させる。
ステップＳ１４２の後、図４の処理を終了する。 (Step S141)
The reduction instruction unit 295 instructs the server device 900 to reduce the electric power discharged from the storage battery 120.
After step S141, the process proceeds to step S142.
(Step S142)
The charge / discharge control unit 294 stops the discharge of the storage battery 120.
After step S142, the process of FIG. 4 is terminated.

（ステップＳ１５１）
削減指示部２９５は、サーバ装置９００に対して電力増加拒否を通知する。電力増加拒否にて削減指示部２９５は、電源装置１１０が供給可能な電力を示し、この電力以下の消費電力で動作するよう指示する。サーバ装置９００は、この指示に従って電源装置１１０が供給可能な電力の範囲内で電力を消費して動作する。
ステップＳ１５１の後、図４の処理を終了する。 (Step S151)
The reduction instruction unit 295 notifies the server device 900 of the power increase refusal. When the power increase is rejected, the reduction instruction unit 295 indicates the power that can be supplied by the power supply device 110, and instructs the power supply device 110 to operate at a power consumption equal to or less than this power. The server device 900 operates by consuming power within the range of power that can be supplied by the power supply device 110 according to this instruction.
After step S151, the process of FIG. 4 is terminated.

以上のように、電源能力判定部２９１は、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足しているか否かを判定する。蓄電量判定部２９３は、蓄電池１２０の蓄電量が、電源装置１１０の停電時にサーバ装置９００に必要電力を供給できるか否かの判定基準値よりも多いか否かを判定する。充放電制御部２９４は、電源装置１１０がサーバ装置９００に電力を供給している状態で、電源能力判定部２９１が、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足していると判定し、かつ、蓄電量判定部２９３が、蓄電池１２０蓄電量が判定基準値よりも多いと判定した場合、蓄電池１２０に放電を行わせる。 As described above, the power supply capacity determination unit 291 determines whether or not the power that can be supplied from the power supply device 110 is insufficient for the required power of the server device 900. The storage amount determination unit 293 determines whether or not the storage amount of the storage battery 120 is larger than the determination reference value of whether or not the required power can be supplied to the server device 900 in the event of a power failure of the power supply device 110. In the charge / discharge control unit 294, while the power supply device 110 is supplying power to the server device 900, the power supply capacity determination unit 291 is insufficient in the power that can be supplied from the power supply device 110 with respect to the required power of the server device 900. When it is determined that the storage battery 120 is stored and the storage battery 120 storage capacity is larger than the determination reference value, the storage battery 120 is discharged.

ここで、サーバ装置９００のＣＰＵ処理速度の増加など、負荷の消費電力が一時的に増加する場合がある。この場合、電源装置１１０が供給可能な電力が増加後の消費電力に対して不足するときは、何らかの対策を講じないと消費電力の増加を許可することはできない。
対策として、電力供給能力の高い電源装置１１０を使用すること、あるいは、電源装置１１０を増設することが考えられるが、ハードウェアコストがかかる点、及び、余剰電力が発生しやすくなる点で、効率的ではない。 Here, the power consumption of the load may temporarily increase, such as an increase in the CPU processing speed of the server device 900. In this case, when the power that can be supplied by the power supply device 110 is insufficient for the power consumption after the increase, the increase in the power consumption cannot be permitted unless some measures are taken.
As a countermeasure, it is conceivable to use a power supply device 110 having a high power supply capacity, or to add a power supply device 110, but it is efficient in that hardware cost is high and surplus power is likely to be generated. Not the target.

これに対し、電力供給システム１００では、蓄電池１２０が不足分の電力を補うことで、電源装置１１０に対する対策を行う必要無しに、消費電力の増加を許可することができる。また、蓄電池１２０として、電力供給システム１００が停電時のバックアップ電源用に備える蓄電池を用いることで、蓄電池１２０を別途用意する必要がない。従って、電力供給システム１００では、特別なハードウェアの対策を行う必要無しに、消費電力の増加を負荷に許可することができる。
また、電力供給システム１００では、蓄電池１２０の蓄電量が停電時の必要電力よりも多い場合に、充放電制御部２９４が蓄電池１２０に放電を行わせるので、停電時の必要電力を確保することができる。
このように電力供給システム１００では、停電時の電力供給に支障をきたさずに通常時にも電力を供給することができる。 On the other hand, in the power supply system 100, the storage battery 120 supplements the shortage of power, so that the increase in power consumption can be permitted without taking measures for the power supply device 110. Further, as the storage battery 120, a storage battery provided by the power supply system 100 for a backup power source in the event of a power failure is used, so that it is not necessary to separately prepare the storage battery 120. Therefore, in the power supply system 100, it is possible to allow the load to increase the power consumption without the need to take special hardware measures.
Further, in the power supply system 100, when the storage amount of the storage battery 120 is larger than the required power at the time of power failure, the charge / discharge control unit 294 discharges the storage battery 120, so that the required power at the time of power failure can be secured. can.
As described above, in the power supply system 100, power can be supplied even in a normal time without disturbing the power supply in the event of a power failure.

また、充放電制御部２９４は、電源装置１１０がサーバ装置９００に電力を供給している状態で、電源能力判定部２９１が、電源装置１１０からの供給可能電力がサーバ装置９００の必要電力に対して不足していると判定し、かつ、蓄電量判定部２９３が、蓄電池１２０の蓄電量が判定基準値以下であると判定した場合、蓄電池１２０からの放電を抑制する。
これにより、電力供給システム１００は、停電時にバックアップ時間の間、サーバ装置９００の必要電力を供給し続けるための蓄電池１２０の蓄電量を確保することができる。 Further, in the charge / discharge control unit 294, while the power supply device 110 is supplying power to the server device 900, the power supply capacity determination unit 291 determines that the power that can be supplied from the power supply device 110 is the required power of the server device 900. When it is determined that the storage amount is insufficient and the storage amount determination unit 293 determines that the storage amount of the storage battery 120 is equal to or less than the determination reference value, the discharge from the storage battery 120 is suppressed.
As a result, the power supply system 100 can secure the storage amount of the storage battery 120 for continuing to supply the required power of the server device 900 during the backup time in the event of a power failure.

また、削減指示部２９５は、電源装置１１０及び蓄電池１２０の両方がサーバ装置９００に電力を供給している状態で、蓄電量判定部２９３が、蓄電池１２０の蓄電量が判定基準値以下であると判定した場合、サーバ装置９００に消費電力削減を指示する。
サーバ装置９００がこの指示に従ってサーバ装置９００自らの消費電力を削減することで、充放電制御部２９４が停電時の必要電力確保のために蓄電池１２０の放電を停止させた後も、サーバ装置９００が動作を継続することができる。 Further, the reduction instruction unit 295 determines that the storage amount of the storage battery 120 is equal to or less than the determination reference value in the state where both the power supply device 110 and the storage battery 120 are supplying power to the server device 900. If it is determined, the server device 900 is instructed to reduce the power consumption.
The server device 900 reduces the power consumption of the server device 900 itself according to this instruction, so that the server device 900 stops discharging the storage battery 120 in order to secure the required power in the event of a power failure. The operation can be continued.

また、バックアップ時間記憶部２８１はバックアップ時間を記憶する。基準値算出部２９２は、サーバ装置９００の消費電力とバックアップ時間とに基づいて判定基準値を算出する。
このように、基準値算出部２９２がサーバ装置９００の特性を反映させて判定基準値を算出することで、停電時にサーバ装置９００の必要電力を供給するための判定基準値を、より高精度に算出することができる。判定基準値が大きな余剰分を含まなくなることで、通常時に蓄電池１２０からサーバ装置９００へ電力を供給できる可能性が高くなる。 Further, the backup time storage unit 281 stores the backup time. The reference value calculation unit 292 calculates the determination reference value based on the power consumption of the server device 900 and the backup time.
In this way, the reference value calculation unit 292 calculates the judgment reference value by reflecting the characteristics of the server device 900, so that the judgment reference value for supplying the required power of the server device 900 in the event of a power failure can be made more accurate. Can be calculated. Since the determination reference value does not include a large surplus, there is a high possibility that electric power can be supplied from the storage battery 120 to the server device 900 at normal times.

制御装置２００に代えて蓄電池１２０がバックアップ時間を記憶するようにしてもよい。この点について、図５及び図６を参照して説明する。
図５は、制御装置２００に代えて蓄電池１２０がバックアップ時間を記憶する場合の電力供給システムの機能構成例を示す概略ブロック図である。図５に示すように、電力供給システム１０１は、電源装置１１０と、蓄電池１２１と、制御装置２００とを備える。蓄電池１２１は、バックアップ時間記憶部１２２を備える。 The storage battery 120 may store the backup time instead of the control device 200. This point will be described with reference to FIGS. 5 and 6.
FIG. 5 is a schematic block diagram showing a functional configuration example of a power supply system when the storage battery 120 stores the backup time instead of the control device 200. As shown in FIG. 5, the power supply system 101 includes a power supply device 110, a storage battery 121, and a control device 200. The storage battery 121 includes a backup time storage unit 122.

図５の各部のうち、図１の各部に対応して同様の機能を有する部分に同一の符号（１１０、９００、Ｗ１１１、Ｗ１２１、Ｗ１３１）を付して説明を省略する。
図５の例では、制御装置２０１がバックアップ時間記憶部を備えておらず、代わりに蓄電池１２１がバックアップ時間記憶部１２２を備えている点で、図１の場合と異なる。それ以外の点は、図１の場合と同様である。 Of the parts of FIG. 5, the parts having the same functions corresponding to the parts of FIG. 1 are designated by the same reference numerals (110, 900, W111, W121, W131) and the description thereof will be omitted.
The example of FIG. 5 is different from the case of FIG. 1 in that the control device 201 does not have the backup time storage unit and instead the storage battery 121 has the backup time storage unit 122. Other points are the same as in FIG. 1.

図６は、制御装置２００に代えて蓄電池１２０がバックアップ時間を記憶する場合の制御装置の機能構成例を示す概略ブロック図である。図６の例で、制御装置２０１は、通信部２１０と、操作入力部２２０と、表示部２３０と、記憶部２８２と、制御部２９０とを備える。制御部２９０は、電源能力判定部２９１と、基準値算出部２９２と、蓄電量判定部２９３と、充放電制御部２９４と、削減指示部２９５とを備える。 FIG. 6 is a schematic block diagram showing a functional configuration example of the control device when the storage battery 120 stores the backup time instead of the control device 200. In the example of FIG. 6, the control device 201 includes a communication unit 210, an operation input unit 220, a display unit 230, a storage unit 282, and a control unit 290 . A control unit 290 includes a power supply capability determination section 291, a reference value calculating section 292, a storage amount determining unit 293, a charge-discharge control unit 294, and a reduction instruction section 295.

図６の各部のうち、図２の各部に対応して同様の機能を有する部分に同一の符号（２１０、２２０、２３０、２９０、２９１、２９２、２９３、２９４、２９５）を付して説明を省略する。図６の例では、記憶部２８２がバックアップ時間記憶部を備えていない点で、図２の場合と異なる。それ以外の点は、図２の場合と同様である。
図５及び図６に示す構成における制御装置２０１の動作は、図４を参照して説明したのと同様である。 Of the parts of FIG. 6, the parts having the same functions corresponding to the parts of FIG. 2 are designated by the same reference numerals (210, 220, 230, 290, 291, 292, 293, 294, 295). Omit. The example of FIG. 6 is different from the case of FIG. 2 in that the storage unit 282 does not include the backup time storage unit. Other points are the same as in FIG. 2.
The operation of the control device 201 in the configurations shown in FIGS. 5 and 6 is the same as described with reference to FIG.

以上のように、バックアップ時間記憶部１２２が蓄電池１２１に内蔵されていることで、蓄電池１２１毎にバックアップ時間を記憶する。この点で、蓄電池１２１の種類に応じたデータをバックアップ時間記憶部１２２に格納し易い。制御装置２００が、蓄電池１２１からバックアップ時間読み出すことで、蓄電池１２０の種類及び特性に応じた制御を行い易くなる。 As described above, since the backup time storage unit 122 is built in the storage battery 121, the backup time is stored for each storage battery 121. In this respect, it is easy to store the data corresponding to the type of the storage battery 121 in the backup time storage unit 122. By reading the backup time from the storage battery 121, the control device 200 facilitates control according to the type and characteristics of the storage battery 120.

次に、図７を参照して、本発明の最小構成について説明する。
図７は、本発明に係る電力供給システムの最小構成の例を示す図である。図７に示す電力供給システム１０は、電源装置１１と、蓄電池１２と、電源能力判定部１３と、蓄電量判定部１４と、充放電制御部１５とを備える。
かかる構成にて、電源能力判定部１３は、電源装置１１からの供給可能電力が負荷の必要電力に対して不足しているか否かを判定する。蓄電量判定部は、蓄電池１２の蓄電量が、電源装置１１の停電時に負荷に必要電力を供給できるか否かの判定基準値よりも多いか否かを判定する、充放電制御部１５は、電源装置１１が負荷に電力を供給している状態で、電源能力判定部１３が、供給可能電力が必要電力に対して不足していると判定し、かつ、蓄電量判定部１４が、蓄電量が判定基準値よりも多いと判定した場合、蓄電池１２に放電を行わせる。 Next, the minimum configuration of the present invention will be described with reference to FIG. 7.
FIG. 7 is a diagram showing an example of the minimum configuration of the power supply system according to the present invention. The power supply system 10 shown in FIG. 7 includes a power supply device 11, a storage battery 12, a power supply capacity determination unit 13, a storage amount determination unit 14, and a charge / discharge control unit 15.
With such a configuration, the power supply capacity determination unit 13 determines whether or not the power that can be supplied from the power supply device 11 is insufficient for the required power of the load. The charge / discharge control unit 15 determines whether or not the charge amount of the storage battery 12 is larger than the determination reference value of whether or not the required power can be supplied to the load in the event of a power failure of the power supply device 11. In a state where the power supply device 11 is supplying power to the load, the power supply capacity determination unit 13 determines that the power that can be supplied is insufficient for the required power, and the storage amount determination unit 14 determines the storage amount. If it is determined that the value is greater than the determination reference value, the storage battery 12 is discharged.

電力供給システム１０１では、蓄電池１２が不足分の電力を補うことで、電源装置１１に対する対策を行う必要無しに、負荷の消費電力の増加を許可することができる。また、蓄電池１２として、電力供給システム１０が停電時のバックアップ電源用に備える蓄電池を用いることで、蓄電池１２を別途用意する必要がない。従って、電力供給システム１０１では、特別なハードウェアの対策を行う必要無しに、消費電力の増加を負荷に許可することができる。 In the power supply system 101, the storage battery 12 supplements the shortage of power, so that it is possible to allow an increase in the power consumption of the load without having to take measures for the power supply device 11. Further, as the storage battery 12, it is not necessary to separately prepare the storage battery 12 by using the storage battery provided by the power supply system 10 for the backup power source in the event of a power failure. Therefore, in the power supply system 101, it is possible to allow the load to increase the power consumption without the need to take special hardware measures.

また、電力供給システム１０では、蓄電池１２の蓄電量が停電時の必要電力よりも多い場合に、充放電制御部１５が蓄電池１２に放電を行わせるので、停電時の必要電力を確保することができる。
このように電力供給システム１０では、停電時の電力供給に支障をきたさずに通常時にも電力を供給することができる。 Further, in the power supply system 10, when the amount of electricity stored in the storage battery 12 is larger than the required power at the time of a power failure, the charge / discharge control unit 15 discharges the storage battery 12, so that the required power at the time of a power failure can be secured. can.
As described above, in the power supply system 10, power can be supplied even in a normal time without disturbing the power supply in the event of a power failure.

図８は、本発明に係る制御装置の最小構成の例を示す図である。図８に示す制御装置２０は、電源能力判定部２１と、蓄電量判定部２２と、充放電制御部２３とを備える。
かかる構成にて、電源能力判定部２１は、電源装置からの供給可能電力が負荷の必要電力に対して不足しているか否かを判定する。蓄電量判定部２２は、電源装置の停電時に負荷に電力を供給する蓄電池の蓄電量が、電源装置の停電時に負荷に必要電力を供給できるか否かの判定基準値よりも多いか否かを判定する。充放電制御部２３は、電源装置が負荷に電力を供給している状態で、電源能力判定部２１が、電源装置の供給可能電力が必要電力に対して不足していると判定し、かつ、蓄電量判定部２２が、蓄電池の蓄電量が判定基準値よりも多いと判定した場合、蓄電池に放電を行わせる。 FIG. 8 is a diagram showing an example of the minimum configuration of the control device according to the present invention. The control device 20 shown in FIG. 8 includes a power supply capacity determination unit 21, a storage amount determination unit 22, and a charge / discharge control unit 23.
With such a configuration, the power supply capacity determination unit 21 determines whether or not the power that can be supplied from the power supply device is insufficient for the required power of the load. The storage amount determination unit 22 determines whether or not the storage amount of the storage battery that supplies power to the load during a power failure of the power supply device is larger than the determination reference value of whether or not the required power can be supplied to the load during a power failure of the power supply device. judge. The charge / discharge control unit 23 determines that the power supplyable power of the power supply device is insufficient for the required power while the power supply device is supplying power to the load, and the power supply capacity determination unit 21 determines that the power supply is insufficient for the required power. When the storage amount determination unit 22 determines that the storage amount of the storage battery is larger than the determination reference value, the storage battery is discharged.

制御装置２０によれば、蓄電池に不足分の電力を補わせることで、電源装置に対する対策を行う必要無しに、負荷の消費電力の増加を許可することができる。また、蓄電池として、電力供給システムが停電時のバックアップ電源用に備える蓄電池を用いることで、蓄電池を別途用意する必要がない。従って、制御装置２０によれば、特別なハードウェアの対策を行う必要無しに、消費電力の増加を負荷に許可することができる。 According to the control device 20, by making the storage battery supplement the insufficient power, it is possible to allow the increase in the power consumption of the load without taking measures for the power supply device. Further, as the storage battery, the storage battery provided for the backup power source in the event of a power failure is used in the power supply system, so that it is not necessary to separately prepare the storage battery. Therefore, according to the control device 20, it is possible to allow the load to increase the power consumption without the need to take special hardware measures.

また、制御装置２０によれば、蓄電池の蓄電量が停電時の必要電力よりも多い場合に、充放電制御部２３が蓄電池に放電を行わせるので、停電時の必要電力を確保することができる。
このように制御装置２０によれば、電力供給システムは、停電時の電力供給に支障をきたさずに通常時にも電力を供給することができる。 Further, according to the control device 20, when the storage amount of the storage battery is larger than the required power at the time of power failure, the charge / discharge control unit 23 discharges the storage battery, so that the required power at the time of power failure can be secured. ..
As described above, according to the control device 20, the power supply system can supply power even in a normal time without disturbing the power supply in the event of a power failure.

なお、制御装置２０、２００及び２０１の機能の全部または一部を実現するためのプログラムをコンピュータ読み取り可能な記録媒体に記録して、この記録媒体に記録されたプログラムをコンピュータシステムに読み込ませ、実行することにより処理を行ってもよい。なお、ここでいう「コンピュータシステム」とは、ＯＳや周辺機器等のハードウェアを含むものとする。
また、「コンピュータ読み取り可能な記録媒体」とは、フレキシブルディスク、光磁気ディスク、ＲＯＭ、ＣＤ−ＲＯＭ等の可搬媒体、コンピュータシステムに内蔵されるハードディスク等の記憶装置のことをいう。また上記プログラムは、前述した機能の一部を実現するためのものであっても良く、さらに前述した機能をコンピュータシステムにすでに記録されているプログラムとの組み合わせで実現できるものであっても良い。 A program for realizing all or part of the functions of the control devices 20, 200 and 201 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read by the computer system and executed. The processing may be performed by doing so. The term "computer system" as used herein includes hardware such as an OS and peripheral devices.
Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, and a storage device such as a hard disk built in a computer system. Further, the above-mentioned program may be for realizing a part of the above-mentioned functions, and may be further realized for realizing the above-mentioned functions in combination with a program already recorded in the computer system.

以上、この発明の実施形態について図面を参照して詳述してきたが、具体的な構成はこの実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計等も含まれる。 Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes designs and the like within a range that does not deviate from the gist of the present invention.

１０、１００、１０１電力供給システム
１１、１１０電源装置
１２、１２０、１２１蓄電池
１３、２１、２９１電源能力判定部
１４、２２、２９３蓄電量判定部
１５、２３、２９４充放電制御部
２０、２００制御装置
１２２、２８１バックアップ時間記憶部
２１０通信部
２２０操作入力部
２３０表示部
２８０、２８２記憶部
２９０制御部
２９２基準値算出部
２９５削減指示部 10, 100, 101 Power supply system 11, 110 Power supply device 12, 120, 121 Storage battery 13, 21, 291 Power capacity determination unit 14, 22, 293 Storage capacity determination unit 15, 23, 294 Charge / discharge control unit 20, 200 control Device 122, 281 Backup time storage unit 210 Communication unit 220 Operation input unit 230 Display unit 280, 282 Storage unit 290 Control unit 292 Reference value calculation unit 295 Reduction instruction unit

Claims

Power supply and
A storage battery that supplies power to the server device in the event of a power failure of the power supply device,
Based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device, the power that can be supplied from the power supply device is the required power of the server device. The power supply capacity judgment unit that determines whether or not there is a shortage,
When the storage battery is fully charged, the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device is set as information indicating the relationship between the power consumption of the server device and the dischargeable time of the storage battery. Obtained by applying the required power at the time of shutting down the device, and the time required for backup to the server device with respect to the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device when the storage battery is fully charged. A reference value calculation unit that calculates the SOC required for responding to a power failure according to the ratio of the above as a judgment reference value for determining whether or not the required power can be supplied to the server device in the event of a power failure.
SOC of the storage battery, and the judgment reference value determining the storage amount determining unit that determines many or not than,
In a state where the power supply device is supplying power to the server device , the power supply capacity determination unit determines that the supplyable power is insufficient for the required power, and the storage amount determination unit. However, when it is determined that the SOC is larger than the determination reference value, the charge / discharge control unit that causes the storage battery to discharge the battery,
Power supply system with.

The charge / discharge control unit determines that the power supply capacity determination unit is insufficient for the required power while the power supply device is supplying power to the server device. Moreover, when the storage amount determination unit determines that the SOC is equal to or less than the determination reference value, the discharge from the storage battery is suppressed.
The power supply system according to claim 1.

When both the power supply device and the storage battery are supplying power to the server device and the storage amount determination unit determines that the SOC is equal to or less than the determination reference value, the server device consumes power. Further equipped with a reduction instruction unit that instructs reduction,
The power supply system according to claim 1 or 2.

Backup time for storing the backup time, which is the time required for the storage battery to supply power to the server device in the event of a power failure of the power supply device, and information indicating the relationship between the power consumption of the server device and the dischargeable amount of the storage battery. With the memory
The power supply system according to any one of claims 1 to 3, further comprising a reference value calculation unit for calculating the determination reference value based on the power consumption of the server device and the backup time.

The backup time storage unit is built in the storage battery.
The power supply system according to claim 4.

Based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device, the power that can be supplied from the power supply device is insufficient with respect to the required power of the server device. The power supply capacity judgment unit that determines whether or not it is used,
When the storage battery that supplies power to the server device during a power failure of the power supply device is fully charged, the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device is the power consumption of the server device and the discharge of the storage battery. The time required to apply the required power at the time of shutting down the server device to the information indicating the relationship with the possible amount, and to supply the required power of the server device at the time of power failure of the power supply device when the storage battery is fully charged. Whether or not the SOC required for responding to a power failure can be supplied to the server device in the event of a power failure, according to the ratio of the time required for backup to the server device. The reference value calculation unit that calculates as the judgment reference value, and
And the power source SOC of the storage battery for supplying power to the server device when a power failure of the device, the determination reference value storage amount determining unit determines more or not than,
While the power supply device is supplying power to the server device , the power supply capacity determination unit determines that the supplyable power is insufficient for the required power, and the storage amount determination unit. However, when it is determined that the SOC is larger than the determination reference value, the charge / discharge control unit that causes the storage battery to discharge the battery,
A control device equipped with.

Based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device, the power that can be supplied from the power supply device is insufficient with respect to the required power of the server device. Judge whether or not it is done,
When the storage battery that supplies power to the server device during a power failure of the power supply device is fully charged, the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device is the power consumption of the server device and the discharge of the storage battery. The time required to apply the required power at the time of shutting down the server device to the information indicating the relationship with the possible amount, and to supply the required power of the server device at the time of power failure of the power supply device when the storage battery is fully charged. Whether or not the SOC required for responding to a power failure can be supplied to the server device in the event of a power failure, according to the ratio of the time required for backup to the server device. Calculated as a judgment standard value,
The battery supplies power to the server device SOC during a power failure of the power supply device may determine whether more than the determination reference value,
In a state where the power supply device is supplying power to the server device , it is determined that the supplyable power is insufficient for the required power, and the SOC is determined to be larger than the determination reference value. If so, the storage battery is discharged.
Control methods including that.

On the computer
Based on the required power of the server device shown in the required power information from the server device and the measured value of the power output by the power supply device, the power that can be supplied from the power supply device is insufficient with respect to the required power of the server device. Let's judge whether it is done or not,
When the storage battery that supplies power to the server device during a power failure of the power supply device is fully charged, the time during which the required power of the server device can be supplied in the event of a power failure of the power supply device is the power consumption of the server device and the discharge of the storage battery. The time required to apply the required power at the time of shutting down the server device to the information indicating the relationship with the possible amount, and to supply the required power of the server device at the time of power failure of the power supply device when the storage battery is fully charged. Whether or not the SOC required for responding to a power failure can be supplied to the server device in the event of a power failure, according to the ratio of the time required for backup to the server device. Calculated as a judgment standard value,
Wherein the SOC of the battery to supply power to the server device when a power failure of the power supply, to determine whether or not greater than the determination reference value,
In a state where the power supply device is supplying power to the server device , it is determined that the supplyable power is insufficient for the required power, and the SOC is determined to be larger than the determination reference value. If so, the storage battery is controlled so that the storage battery is discharged.
Program for.