JP2007043802A - Uninterruptible power supply and distribution panel - Google Patents

Uninterruptible power supply and distribution panel Download PDF

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JP2007043802A
JP2007043802A JP2005224099A JP2005224099A JP2007043802A JP 2007043802 A JP2007043802 A JP 2007043802A JP 2005224099 A JP2005224099 A JP 2005224099A JP 2005224099 A JP2005224099 A JP 2005224099A JP 2007043802 A JP2007043802 A JP 2007043802A
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power supply
load
uninterruptible
uninterruptible power
power
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Akihiko Mochida
明彦 持田
Koji Utsunomiya
幸司 宇都宮
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Tokyo Electric Power Company Holdings Inc
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Tokyo Electric Power Co Inc
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive uninterruptible power supply installed to a distribution panel. <P>SOLUTION: A load is divided into a load to be supplied with power during an interruption and a load to be deactivated after the interruption is detected. The uninterruptible power supply remotely deactivates the load to be deactivated within a duration when power can be supplied by a storage cell if the interruption of a commercial power supply is detected, and is integrated into the distribution panel. A wireless LAN or a wired LAN is used for a remote operation. The distribution panel has the built-in uninterruptible power supply. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、瞬時電圧低下を補償するとともに商用電源の停電の際に負荷へ電力を供給する無停電電源装置に関する。   The present invention relates to an uninterruptible power supply that compensates for an instantaneous voltage drop and supplies power to a load in the event of a power failure of a commercial power supply.

従来、住宅用の停電対策及び非常時の電源確保については、二次電池を用いた夜間電力を充電する電力貯蔵装置や太陽光発電・燃料電池を用いたものが提案されている。また、安価な小型無停電電源を機器ごとに設置したり、電池内蔵住宅用の非常用照明灯を設置するなどの対策も行われている。   Conventionally, for power failure countermeasures for homes and securing a power source in an emergency, a power storage device that uses a secondary battery to charge nighttime power or a solar power generation / fuel cell has been proposed. In addition, measures such as installing an inexpensive small uninterruptible power supply for each device and installing emergency lighting for houses with built-in batteries are being taken.

特許文献１においては、分電盤に接続された無停電電力供給装置が開示されている。当該装置では、内部に２系統の安全ブレーカを配置し、特定の電力機器に対してデマンドコントロール装置を介して無停電電源供給装置から電力を供給する。
特開２００４−３２８９６０号公報 In Patent Document 1, an uninterruptible power supply device connected to a distribution board is disclosed. In this apparatus, two safety breakers are arranged inside, and electric power is supplied from an uninterruptible power supply device to a specific power device via a demand control device.
JP 2004-328960 A

無停電電源装置が広く普及するには、機器の小型化及び低コスト化が必須であるが、そのためには蓄電池の容量を抑える必要があり、停電時間中に負荷に電力を供給しつづけるだけの容量をもった蓄電池を備えることは難しい。   In order for the uninterruptible power supply to become widespread, it is essential to reduce the size and cost of the equipment. To that end, it is necessary to reduce the capacity of the storage battery, and only supply power to the load during the power outage time. It is difficult to provide a storage battery with a capacity.

一方で、コンピュータやハードディスクを内蔵した映像録画機器等について電源を強制的に遮断すると、データの逸失や、場合によっては機器の損傷を生じさせてしまう。 On the other hand, if the power is forcibly cut off for a video recording device or the like with a built-in computer or hard disk, data loss and possibly device damage will occur.

本発明は、前記課題に鑑みてなされたものであり、分電盤に設置可能であり、低コストな無停電電源装置を提供することを目的とする。   This invention is made | formed in view of the said subject, and it aims at providing a low-cost uninterruptible power supply device which can be installed in a distribution board.

本発明者らは、前記課題を解決するため鋭意検討した結果、停電時間中に電力を供給しなければならない負荷と停電に弱い負荷を区別し、停電に弱い負荷については停電検出後停止操作を行うとともに停止操作の時間のみ電力を供給することで、合理的な無停電電源装置を構成できることを着想し、本発明をするに至った。 As a result of intensive studies to solve the above problems, the present inventors discriminate between a load that must be supplied with power during a power outage time and a load that is vulnerable to a power outage. It was conceived that a rational uninterruptible power supply can be constructed by supplying power only during the stop operation time, and the present invention has been achieved.

すなわち、本発明は以下のとおりである。     That is, the present invention is as follows.

第一の発明は、商用電源と需要家負荷のうち特定の負荷との間に設置される蓄電池を備えた無停電電源装置に係る。
本無停電電源装置は、前記特定の負荷を、停電時間中電力を供給すべき負荷と停電検出後停止すべき負荷に分類し、前記停止すべき負荷については、商用電源の停止を検出した際には、前記蓄電池による電力供給可能時間内に停止操作を遠隔で行う。 1st invention concerns on the uninterruptible power supply device provided with the storage battery installed between a commercial power supply and the specific load among consumer loads.
The uninterruptible power supply classifies the specific load into a load to be supplied with power during a power failure time and a load to be stopped after a power failure is detected, and the load to be stopped is detected when a commercial power supply stop is detected. In this case, the stop operation is performed remotely within the power supply possible time by the storage battery.

第二の発明は、第一の発明を限定したものであり、
無線または有線ＬＡＮによって、遠隔操作を行う。
第三の発明は、第一又は第二の発明に係る無停電電源装置を内蔵した分電盤である。 The second invention limits the first invention,
Remote operation is performed by wireless or wired LAN.
A third invention is a distribution board incorporating the uninterruptible power supply according to the first or second invention.

本発明によれば、停電時間中の蓄電池の責務を軽減することができ、よって蓄電池部が小型化される。これにより分電盤に内蔵可能で低コストな無停電電源装置を提供することができる。   According to the present invention, the duty of the storage battery during a power failure time can be reduced, and thus the storage battery unit is downsized. As a result, it is possible to provide a low-cost uninterruptible power supply that can be built in the distribution board.

図１は、本発明の実施形態である分電盤の構成を示す。分電盤１０は開閉器１１、漏電遮断器１２、一般負荷用アンペアブレーカ１３、及び無停電電源装置２０からなる。無停電電源装置２０は蓄電池２１、コンバータ２２、インバータ２３、母線２４、切替スイッチ２５、遮断器２６、制御装置２７、無停電負荷用アンペアブレーカ２８、及び非常用負荷用アンペアブレーカ２９からなる。   FIG. 1 shows a configuration of a distribution board according to an embodiment of the present invention. The distribution board 10 includes a switch 11, a leakage breaker 12, a general load amper breaker 13, and an uninterruptible power supply 20. The uninterruptible power supply 20 includes a storage battery 21, a converter 22, an inverter 23, a bus 24, a changeover switch 25, a circuit breaker 26, a control device 27, an uninterruptible load amper breaker 28, and an emergency load amper breaker 29.

分電盤１０が商用電源から受電した電力は、開閉器１１、漏電遮断器１２を介して、一般負荷用アンペアブレーカ及び無停電電源２０に送られる。   The electric power received by the distribution board 10 from the commercial power supply is sent to the general load amper breaker and the uninterruptible power supply 20 via the switch 11 and the leakage breaker 12.

一般負荷用アンペアブレーカの先には図示しないが、一般負荷が接続されている。この一般負荷は停電時の給電を必要としない負荷である。   Although not shown, a general load is connected to the tip of the general load ampere breaker. This general load is a load that does not require power supply during a power failure.

無停電電源２０においては、蓄電池２１がコンバータ２２及びインバータ２３を介して商用周波数の母線２４に接続されている。無停電負荷用アンペアブレーカ２８及び非常用負荷用アンペアブレーカ２９は切替スイッチ２５を介して母線２４に接続されており、切替スイッチ２５により、商用電源もしくは蓄電池のいずれかから受電する構成となっている。   In the uninterruptible power supply 20, a storage battery 21 is connected to a commercial frequency bus 24 via a converter 22 and an inverter 23. The uninterruptible load amper breaker 28 and the emergency load amper breaker 29 are connected to the bus 24 via the changeover switch 25, and are configured to receive power from either the commercial power source or the storage battery by the changeover switch 25. .

蓄電池２１は定常時はコンバータ２２を介して商用系統から受電し充電しているが、商用系統に停電が生じた場合には、インバータ２３を介して電力を供給する。すなわち、定常時はコンバータ２２が動作し、インバータ２３はブロックされているが、商用系統に停電が生じた場合には、コンバータ２２はブロックされ、インバータ２３が動作する。   The storage battery 21 receives power from the commercial system via the converter 22 during normal operation and charges it. However, when a power failure occurs in the commercial system, power is supplied through the inverter 23. That is, the converter 22 operates and the inverter 23 is blocked during normal operation. However, when a power failure occurs in the commercial system, the converter 22 is blocked and the inverter 23 operates.

図２は、無停電電源２０と無停電負荷３１及び非常用負荷３２の接続を示す。無停電負荷３１ａ〜３１ｄは無停電負荷用アンペアブレーカ２８から受電するとともに、ルータ３０を介して制御装置２７からの信号を受信可能に接続される。無停電負荷とは無停電電源を必要とする、停電により損傷が懸念される負荷であり、具体的にはパソコンやネットワーク家電等を指す。本発明においては、これらの負荷を停電検出後停止すべき負荷とする。   FIG. 2 shows the connection of the uninterruptible power supply 20 with the uninterruptible load 31 and the emergency load 32. The uninterruptible loads 31a to 31d are connected so as to receive power from the uninterruptible load amper breaker 28 and to receive a signal from the control device 27 via the router 30. An uninterruptible load is a load that requires an uninterruptible power supply and is likely to be damaged by a power failure. Specifically, it refers to a personal computer, a network home appliance, and the like. In the present invention, these loads are loads to be stopped after a power failure is detected.

非常用負荷３２ａ、３２ｂは非常用負荷用アンペアブレーカ２９から受電する。この非常用負荷とは、停電時間中電力を供給すべき負荷であり、具体的には非常灯等を指す。   The emergency loads 32 a and 32 b receive power from the emergency load amper breaker 29. This emergency load is a load to which power is to be supplied during a power failure, and specifically refers to an emergency light or the like.

図３は、本発明にかかる無停電電源装置の動作を説明するフローである。   FIG. 3 is a flow for explaining the operation of the uninterruptible power supply according to the present invention.

制御部２７は常時、遮断器２６の二次側電源の電圧を監視している（Ｓ１）。制御部２７が遮断器２６の二次側電源の電圧が閾値Ａ以下となり、停電が生じたことを検知すると（Ｓ２）、コンバータ２２をブロックしインバータ２３を動作させる（Ｓ３）。更に切替スイッチ２５を動作させ、無停電負荷及び非常用負荷を母線２４から切り離し、蓄電池側へ接続する（Ｓ４）。ここで、閾値Ａは任意に設定できるが、本実施例では９３．５Ｖに設定される。   The control unit 27 constantly monitors the voltage of the secondary power source of the circuit breaker 26 (S1). When the control unit 27 detects that the secondary power supply voltage of the circuit breaker 26 is equal to or lower than the threshold A and a power failure has occurred (S2), the converter 22 is blocked and the inverter 23 is operated (S3). Further, the changeover switch 25 is operated to disconnect the uninterruptible load and the emergency load from the bus 24 and connect to the storage battery side (S4). Here, the threshold A can be set arbitrarily, but is set to 93.5 V in this embodiment.

加えて、制御装置２７は、ネットワークを介して無停電負荷へ停止指示を発信する（Ｓ５）。無停電負荷３１ａ〜３１ｄは、制御手段２７からの指示を受け、負荷である電気機器に損傷が生じないようにシャットダウンする（Ｓ６）。   In addition, the control device 27 transmits a stop instruction to the uninterruptible load via the network (S5). The uninterruptible loads 31a to 31d receive an instruction from the control means 27, and are shut down so as not to damage the electrical equipment that is the load (S6).

制御部２７が遮断器２６の二次側電源の電圧が閾値Ｂ以上となり、停電が解除されたことを検知すると（Ｓ８）、インバータ２３をブロックしコンバータ２２を動作させるとともに（Ｓ９）、切替スイッチ２５を動作させ、無停電負荷及び非常用負荷を蓄電池側から切り離し、母線２４へ接続する（Ｓ１０）。ここで、閾値Ｂは任意に設定できるが、本実施例では９５．５に設定される。   When the control unit 27 detects that the secondary power supply voltage of the circuit breaker 26 is equal to or higher than the threshold value B and the power failure is released (S8), the inverter 23 is blocked and the converter 22 is operated (S9). 25 is operated, the uninterruptible load and the emergency load are disconnected from the storage battery side, and connected to the bus 24 (S10). Here, the threshold value B can be set arbitrarily, but is set to 95.5 in this embodiment.

更に制御装置２７は、ネットワーク経由で無停電負荷へ復帰指示を発信する（Ｓ１１）。制御装置２７の指示を受けた無停電負荷３１ａ〜３１ｄは、復帰もしくは待機状態とする（Ｓ１０）。   Further, the control device 27 transmits a return instruction to the uninterruptible load via the network (S11). The uninterruptible loads 31a to 31d that have received an instruction from the control device 27 return or enter a standby state (S10).

なお、停電検出（Ｓ２）から負荷のシャットダウン（Ｓ７）までの間は、蓄電池により負荷３１ａ〜３１ｄへ電力が供給され、また、停電検出（Ｓ２）から切替スイッチ動作（Ｓ１０）までの間は、蓄電池により負荷３２ａ、３２ｂへ電力が供給される。   In addition, during the period from the power failure detection (S2) to the load shutdown (S7), power is supplied to the loads 31a to 31d by the storage battery, and from the power failure detection (S2) to the changeover switch operation (S10), Electric power is supplied to the loads 32a and 32b by the storage battery.

本発明に係る無停電電源装置の実施形態を示す構成図。The lineblock diagram showing the embodiment of the uninterruptible power supply concerning the present invention. 本発明に係る無停電電源装置と負荷との接続形態を示す構成図。The block diagram which shows the connection form of the uninterruptible power supply which concerns on this invention, and load. 本発明に係る無停電電源装置の停電時の動作を示すフロー図。The flowchart which shows the operation | movement at the time of a power failure of the uninterruptible power supply which concerns on this invention.

符号の説明Explanation of symbols

１０ 分電盤
１１ 主回路開閉器
１２ 漏電遮断器
１３ 一般負荷用アンペアブレーカ
２０ 無停電電源装置
２１ 蓄電池
２２ コンバータ
２３ インバータ
２４ 母線
２５ 切替スイッチ
２６ 遮断器
２７ 制御装置
２８ 無停電負荷用アンペアブレーカ
２９ 非常用負荷用アンペアブレーカ
３０ ルータ
３１ａ〜３１ｄ 無停電負荷
３２ａ〜３２ｂ 非常用負荷 10 Distribution Board 11 Main Circuit Switch 12 Earth Leakage Breaker 13 General Load Amp Breaker 20 Uninterruptible Power Supply 21 Storage Battery 22 Converter 23 Inverter 24 Bus 25 Changeover Switch 26 Circuit Breaker 27 Control Device 28 Uninterruptible Load Breaker 29 Emergency Load breaker 30 routers 31a-31d uninterruptible loads 32a-32b emergency load

Claims (3)

商用電源と需要家負荷のうち特定の負荷との間に設置され、
蓄電池を備えた無停電電源装置であり、
前記特定の負荷を、
停電時間中電力を供給すべき負荷と
停電検出後停止すべき負荷に分類し、
商用電源の停止を検出した際には、
前記停止すべき負荷について、
前記蓄電池による電力供給可能時間内に
停止操作を遠隔で行うことを特徴とする
無停電電源装置。 Installed between a commercial power source and a specific load among customer loads,
An uninterruptible power supply with a storage battery,
The specific load,
Classify the load to be supplied during power outage and the load to be stopped after a power outage is detected.
When a commercial power supply stop is detected,
Regarding the load to be stopped,
An uninterruptible power supply, wherein a stop operation is performed remotely within a power supply possible time by the storage battery. 前記遠隔操作にあたっては、
無線または有線ＬＡＮを用いることを特徴とする
請求項１記載の無停電電源装置。 In the remote operation,
2. The uninterruptible power supply according to claim 1, wherein a wireless or wired LAN is used. 請求項１又は２に記載の無停電電源装置を内蔵した分電盤。

A distribution board incorporating the uninterruptible power supply according to claim 1 or 2.

JP2005224099A 2005-08-02 2005-08-02 Uninterruptible power supply and distribution panel Pending JP2007043802A (en)

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