WO2016147526A1 - Système de détection de défaillance et procédé de détection de défaillance - Google Patents

Système de détection de défaillance et procédé de détection de défaillance Download PDF

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Publication number
WO2016147526A1
WO2016147526A1 PCT/JP2016/000305 JP2016000305W WO2016147526A1 WO 2016147526 A1 WO2016147526 A1 WO 2016147526A1 JP 2016000305 W JP2016000305 W JP 2016000305W WO 2016147526 A1 WO2016147526 A1 WO 2016147526A1
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WO
WIPO (PCT)
Prior art keywords
current
power
lamp
detection system
current pulses
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Application number
PCT/JP2016/000305
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English (en)
Japanese (ja)
Inventor
祐太朗 北畑
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日本電気株式会社
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Filing date
Publication date
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Publication of WO2016147526A1 publication Critical patent/WO2016147526A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to a failure detection system and a failure detection method.
  • Patent Literature 1 A system that centrally manages multiple electrical devices is known.
  • a managed device terminal device terminal unit is interposed between an electric device to be managed and a device centralized management device (host unit), and the power supply of the electric device is connected via the terminal unit.
  • a device centralized management system that controls the above is disclosed.
  • a power control unit that directly controls the supply of commercial power, which is the operating power source, is interposed between the electrical device and the terminal unit.
  • the terminal unit receives the control signal from the host unit, the corresponding control data is transmitted from the terminal unit to the power supply control unit.
  • the power supply control unit controls the switch unit according to the data to control the supply of commercial power to the electrical equipment.
  • Patent Document 2 discloses a system for detecting an electric power abnormality in a space where electric power is used by a consumer such as a house, an apartment, a building, or a commercial facility.
  • a power abnormality is detected based on the predicted power demand of the electrical equipment and the power consumption of the electrical equipment measured by a power measurement unit or the like installed on the distribution board.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a failure detection system and a failure detection method capable of early detection of the occurrence of a failure in an electrical device. It is.
  • a failure detection system includes a power supply switch that controls supply of power to a device connected to a distribution board, and a number of current pulses that are preset for the device when the power is turned on.
  • the control unit that controls the power supply switch so as to start the supply of power to the device after input, and the current pulse when the device is turned on and is installed in the distribution board
  • a power measurement unit that measures the number and the load current of the device and detects a failure of the device based on the measurement result.
  • the present invention it is possible to provide a failure detection system and a failure detection method that can detect the occurrence of a failure in an electrical device at an early stage.
  • FIG. 1 is a diagram showing a configuration of a failure detection system according to a first exemplary embodiment. It is a figure which shows the waveform of the electric current measured with the failure detection system which concerns on Embodiment 1 when only one area exists. It is a flowchart which shows the failure detection procedure by the failure detection system which concerns on embodiment. It is a figure which shows the state at the time of normal in case a some area exists. In the state shown in FIG. 4, it is a figure which shows the waveform of the current measured with the failure detection system concerning Embodiment 1. FIG. It is a figure which shows the state at the time of abnormality when a some area exists. FIG.
  • FIG. 7 is a diagram illustrating a waveform of a current measured by the failure detection system according to the first embodiment in the state illustrated in FIG. 6. It is a figure which shows the state at the time of one part of the failure detection system concerning Embodiment 2.
  • FIG. FIG. 9 is a diagram showing a waveform of a current measured by the failure detection system according to the second embodiment in the state shown in FIG. It is a figure which shows the state at the time of the one part abnormality of the failure detection system concerning Embodiment 2.
  • FIG. It is a figure which shows the state at the time of normal in case a some area exists.
  • FIG. 12 In the state shown in FIG. 12, it is a figure which shows the waveform of the current measured with the failure detection system concerning Embodiment 2.
  • FIG. 14 It is a figure which shows the state at the time of abnormality when a some area exists.
  • FIG. 14 it is a figure which shows the waveform of the electric current measured with the failure detection system concerning Embodiment 2.
  • the failure detection system detects a failure of the electrical device by measuring a current flowing to the electrical device connected to a distribution board, a distribution board, or the like.
  • a current flowing to the electrical device connected to a distribution board, a distribution board, or the like.
  • FIG. 1 is a diagram illustrating a configuration of a failure detection system according to the first embodiment.
  • the failure detection system 1 includes a distribution board 10, a power measuring device 11, a CT (current transformer) 12, a breaker 13, a display 14, a communication network 15, a DB (database) 16, and a control circuit 20. , A switch 21 and a pulse number setting unit 22.
  • the failure detection system 1 can detect each failure of the lamp L in a plurality of areas A to C.
  • the areas A to C are assumed to be spaces such as houses and apartments, commercial tenants, and office buildings.
  • the control circuit 20 and the like in the areas B and C are not shown, but the areas B and C can have the same configuration as the area A.
  • the distribution board 10 distributes the electric power supplied from the commercial power system or the private power generator to each electric device (load) via a voltage line.
  • AC alternating current
  • a breaker 13 is provided on each voltage line of the distribution board 10. The breaker 13 cuts off the supply of power to the electrical device when a current exceeding a certain level flows.
  • CT 12 is provided on each voltage line in the distribution board 10.
  • CT12 is a current sensor that detects the value of the current flowing through each voltage line.
  • lamps L in areas A to C are connected under the voltage line measured by one CT 12.
  • the distribution board 10 is provided with a power measuring instrument 11.
  • the power measuring instrument 11 can measure the amount of power consumed by the lamp L based on the current value detected by the CT 12.
  • a display 14 is connected to the power meter 11 in a state where communication is possible via the communication network 15.
  • the communication network 15 is configured by, for example, a LAN (Local Area Network).
  • LAN Local Area Network
  • the display 14 displays various information output from the power meter 11. For example, the display 14 displays the lamp current flowing through the lamp L, the control circuit current supplied from the control circuit 20 to be described later to the lamp L, and the total current obtained by adding the lamp current and the control circuit current. The display 14 displays the detected failure location.
  • the indicator 14 can be installed in the same building or site as the areas A to C.
  • a control circuit 20, a switch 21, and a pulse number setting unit 22 are connected to the lamps L in each of the areas A to C.
  • the switch 21 is a power supply switch that controls the supply of power to the lamp L connected to the distribution board 10.
  • a plurality of switches 21 are connected under the voltage line measured by one CT 12.
  • the lamps L in each of the areas A to C are connected to voltage lines via the switches 21, respectively.
  • a control circuit 20 is connected to each switch 21.
  • the control circuit 20 controls the switch 21 to start supplying power to the lamp L after inputting a preset number of current pulses to the lamp L when the lamp L is turned on. .
  • the power measuring instrument 11 described above measures the number of current pulses and the lamp current (load current) of the lamp L when power is supplied to the lamp L, and detects a failure based on the measurement result.
  • the pulse number setting unit 22 sets the number of current pulses supplied from the control circuit 20 to the lamp L.
  • a plurality of lamps L are connected to one voltage line of the distribution board 10, and the plurality of lamps L are provided with a control circuit 20, a switch 21, and a pulse number setting unit 22, respectively. ing.
  • the number of current pulses is set individually for each lamp L. That is, the number of current pulses supplied to the lamps L in the areas A to C is different.
  • the control circuits 20 in the areas A to C supply different numbers of current pulses to the lamps L in the areas A to C, respectively.
  • the power measuring instrument 11 can identify the failure location according to the number of current pulses.
  • a DB 16 is connected to the power meter 11 via a communication network 15.
  • the DB 16 stores a plurality of lamps L and the number of current pulses individually set for each lamp L in association with each other. That is, the number of current pulses is an ID for identifying the lamp L.
  • the ID and the area where the electric lamp L exists are linked and stored.
  • the power meter 11 can identify which area of the lamp L has failed by comparing the measured number of current pulses with the number of current pulses stored in the DB 16. Further, the power measuring instrument 11 can detect the operation of each of the lamps L1 to L3 in accordance with the measured lamp current.
  • FIG. 2 is a diagram illustrating a waveform of a current measured by the failure detection system 1 according to the first embodiment when only one area A exists.
  • FIG. 3 is a flowchart showing a failure detection procedure by the failure detection system 1.
  • the total current Ia includes one current pulse and a lamp current.
  • the lamp current does not flow due to the failure of the lamp L in area A such as a broken bulb.
  • the lamp current does not rise at the time of abnormality.
  • the total current Ia includes only one current pulse and does not include the lamp current.
  • step S1 when the supply of power is started by turning on the switch 21 (step S1), the control circuit 20 operates (step S2).
  • the control circuit 20 generates the number of current pulses set by the pulse number setting unit 22 (step S3). Here, one current pulse is generated. Thereafter, the control circuit 20 supplies a lamp current to the lamp L (step S4).
  • the power meter 11 measures the total current including the current pulse and the lamp current (step S5). Then, the power measuring instrument 11 measures the number of current pulses included in the total current Ia, and specifies an area (step S6). As shown in FIG. 2, when one current pulse is measured, area A is specified.
  • step S7 determines whether or not the lamp current is included in the total current Ia (step S7).
  • step S7 when the lamp current is present (present), it is determined as normal and the process ends.
  • step S7 when there is no lamp current (none), the power measuring device 11 detects a broken ball (failure) of the lamp L in the area A (step S8). Then, the failure location (out of the bulb L of the lamp L in area A) is displayed on the display 14 (step S9).
  • FIG. 4 is a diagram showing a normal state when a plurality of areas exist.
  • FIG. 5 is a diagram illustrating a waveform of a current measured by the failure detection system according to the first embodiment in the state illustrated in FIG. 4.
  • FIG. 6 is a diagram illustrating a state at the time of abnormality when a plurality of areas exist.
  • FIG. 7 is a diagram illustrating a waveform of a current measured by the failure detection system according to the first embodiment in the state illustrated in FIG. 6.
  • lamps L1 to L3 are referred to as lamps L1 to L3, respectively.
  • one current pulse is supplied to the lamp L1 in the area A
  • two current pulses are supplied to the lamp L2 in the area B
  • three current pulses are supplied to the lamp L3 in the area C.
  • the number of current pulses may be different for each of the lamps L1 to L3, and can be arbitrarily set in advance.
  • the area A is specified.
  • area B is specified when two current pulses are measured by the power meter 11.
  • the area C is specified.
  • the power measuring device 11 identifies the area with reference to the DB 16. That is, the power measuring instrument 11 extracts individual feature amounts (current pulse numbers) of the lamps L1 to L3, and compares them with the feature amounts (current pulse numbers) for the lamps L1 to L3 registered in the DB 16. The lights L1 to L3 can be specified.
  • the power measuring device 11 performs individual operation detection of the lamps L1 to L3 according to the lamp current. Thereby, the failure of the lamp L2 in the area B can be detected.
  • the failure detection system 1 can identify the area where the failure of the electrical device has occurred based on the number of current pulses, and automatically detect the presence or absence of the failure based on the current flowing through the electrical device. can do. Thereby, it becomes possible to detect a failure of an electric device such as a relatively simple lamp without a failure detection function. According to the failure detection system 1, it is possible to find a failure without omission at an early stage without requiring a person to check the electrical device.
  • Embodiment 2 Next, a failure detection system 1A according to the second embodiment will be described with reference to FIGS.
  • the examples illustrated in FIGS. 8 to 11 are examples in which a failure is determined using the failure detection system 1A according to the second embodiment when one area exists.
  • FIG. 8 is a diagram illustrating a normal state of a part of the failure detection system according to the second embodiment.
  • FIG. 9 is a diagram showing a waveform of current measured by the failure detection system according to Embodiment 2 in the state shown in FIG.
  • FIG. 10 is a diagram illustrating a state of a part of the failure detection system according to the second embodiment when there is an abnormality.
  • FIG. 11 is a diagram showing a waveform of a current measured by the failure detection system according to the second embodiment in the state shown in FIG.
  • the configuration of the distribution board 10 to which the switch 21 is connected can be the same as that shown in FIG.
  • a plurality of lamps L are connected to one switch 21.
  • the switch 21 is connected to three lamps L1 to L3.
  • a control circuit 20 is connected between the switch 21 and the lamp L3.
  • the number of current pulses supplied from the control circuit 20 to the lamps L1 to L3 is set by the pulse number setting unit 22.
  • one current pulse number is set for the lamps L1 to L3. That is, the number of current pulses (feature amount) of the lamps L1 to L3 is the same.
  • the total current Ia + b + c of the area is the current pulse and the lamp currents of the lamps L1 to L3 (lamp 1). Current, lamp 2 current, lamp 3 current).
  • the lamp current included in the total current is 3A.
  • the power meter 11 can identify the number of operating lamps based on the magnitude of the lamp current included in the total current.
  • step S7 it is determined whether or not the lamp current included in the total current Ia + b + c is insufficient compared to the normal time. The If the lamp current is less than normal, the number of lamps that are out of bulb (failed) is detected in step S8.
  • FIG. 12 is a diagram illustrating a normal state when there are a plurality of areas.
  • FIG. 13 is a diagram illustrating a waveform of a current measured by the failure detection system according to the second embodiment in the state illustrated in FIG.
  • FIG. 14 is a diagram illustrating a state at the time of abnormality when a plurality of areas exist.
  • FIG. 15 is a diagram illustrating a waveform of a current measured by the failure detection system according to the second embodiment in the state illustrated in FIG.
  • FIGS. 12 and 14 it is assumed here that there are two areas A and B.
  • the lamps arranged in area A are referred to as lamps L1 to L3, and the lamps arranged in area B are lamps L4 to L6.
  • FIGS. 13 and 15 it is assumed that one current pulse is supplied to the lamps L1 to L3 in the area A, and two current pulses are supplied to the lamps L4 to L6 in the area B.
  • the number of current pulses may be different for each of the lamps L1 to L3 and the lamps L4 to L6, and can be arbitrarily set in advance.
  • the area A is specified.
  • area B is specified when two current pulses are measured by the power meter 11.
  • the total current Ia + b + c in area A includes the lamp currents of lamps L1 to L3
  • the total current Ic + d + e in area B includes the lamp currents of lamps L4 to L6.
  • the lamp current included in the total current Ia + b + c and the total current Ic + d + e is 3A.
  • the total current Ia + b + c in area A includes the lamp currents of lamps L1 to L3.
  • the total current Ic + d + e in area B includes only the lamp currents of the lamps L5 and L6, and does not include the lamp current to the lamp L4. That is, in area A, the lamp current for three lamps is included, while in area B, only the lamp current for two lamps is included.
  • the total current Ia + b + c is 3A
  • the total current Ic + d + e is 2A.
  • the power measuring instrument 11 can detect the number of operating lamps according to the magnitude of the lamp current.
  • the failure detection system 1A it is possible to narrow down the area where the failure of the lamp is generated by the number of current pulses. Then, it is possible to expedite the discovery of a failure by inspecting only the narrowed area by visual inspection or the like. Further, since the number of electric lamps operating in the narrowed area can be specified, it is possible to grasp the number of failures to be found when a person inspects. Thereby, it becomes possible to suppress an inspection omission. In addition, the number of electrical devices to be inspected can be reduced, and the management cost can be reduced.
  • the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
  • the CT 12 is arranged on the voltage line in the distribution board 10, but the location of the CT 12 is not particularly limited as long as it is on the electric circuit that supplies power to the electrical equipment. .
  • the example which provided CT12 in the distribution board 10 is shown in FIG. 1, it is also possible to provide a current sensor in electric equipment other than the distribution board.
  • the area is specified and the failure of the electric device is determined based on the current flowing through the electric device.
  • the present invention is not limited to this.
  • Failure detection system 1A Failure detection system 10 Distribution board 11 Power meter 12 CT 13 Breaker 14 Display 15 Communication Network 16 DB 20 Control circuit 21 Switch 22 Pulse number setting section L, L1 to L6 Light

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

L'invention concerne un système de détection de défaillance qui est capable de détecter l'apparition de défaillances dans un équipement électrique à un stade précoce. Selon un mode de réalisation de la présente invention, un système de détection de défaillance est pourvu des éléments suivants : un commutateur (21) permettant de commander l'alimentation électrique d'une lampe électrique (L1) qui est connectée à un tableau de distribution (10) ; un circuit de commande (20) qui, lorsque l'alimentation est activée, commande le commutateur (21) de sorte que l'alimentation électrique de la lampe électrique (L1) débute après qu'un nombre prédéfini d'impulsions de courant a été fourni en entrée à la lampe électrique (L1) ; et un appareil de mesure de puissance (11) qui est installé sur le tableau de distribution (10), et qui, lorsque l'alimentation de la lampe électrique (L1) est activée, mesure le nombre d'impulsions de courant et le courant de charge de la lampe électrique (L1) pour détecter toute défaillance de la lampe électrique (L1) sur la base des résultats de mesure.
PCT/JP2016/000305 2015-03-18 2016-01-21 Système de détection de défaillance et procédé de détection de défaillance WO2016147526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-054534 2015-03-18
JP2015054534A JP6641707B2 (ja) 2015-03-18 2015-03-18 故障検出システム

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WO2016147526A1 true WO2016147526A1 (fr) 2016-09-22

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09153396A (ja) * 1995-11-30 1997-06-10 Nissin Electric Co Ltd 照明灯監視システム
JP2008306840A (ja) * 2007-06-07 2008-12-18 Konica Minolta Holdings Inc 電源管理システム、電源管理システムの制御方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011142771A (ja) * 2010-01-08 2011-07-21 Yokogawa Electric Corp 電力パケットシステム
JP5389060B2 (ja) * 2011-01-12 2014-01-15 中国電力株式会社 配電系統運用方法、配電系統運用装置、配電系統運用システム及びプログラム
JP2014072561A (ja) * 2012-09-27 2014-04-21 Nitto Denko Corp 家電機器遠隔監視システム
JP5370566B1 (ja) * 2012-10-17 2013-12-18 三菱電機株式会社 結線状態診断装置および結線状態診断方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09153396A (ja) * 1995-11-30 1997-06-10 Nissin Electric Co Ltd 照明灯監視システム
JP2008306840A (ja) * 2007-06-07 2008-12-18 Konica Minolta Holdings Inc 電源管理システム、電源管理システムの制御方法

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JP6641707B2 (ja) 2020-02-05

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