WO2018230804A1 - Advanced metering infrastructure capable of distinguishing between phases of power line, and method for distinguishing between phases of power line and controlling stealing power by using same - Google Patents

Advanced metering infrastructure capable of distinguishing between phases of power line, and method for distinguishing between phases of power line and controlling stealing power by using same Download PDF

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Publication number
WO2018230804A1
WO2018230804A1 PCT/KR2018/001235 KR2018001235W WO2018230804A1 WO 2018230804 A1 WO2018230804 A1 WO 2018230804A1 KR 2018001235 W KR2018001235 W KR 2018001235W WO 2018230804 A1 WO2018230804 A1 WO 2018230804A1
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WIPO (PCT)
Prior art keywords
phase
power
electricity meter
dcu
distribution line
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PCT/KR2018/001235
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French (fr)
Korean (ko)
Inventor
류정수
정재천
진영선
양정옥
이형민
김택용
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한국전력공사
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Publication of WO2018230804A1 publication Critical patent/WO2018230804A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/063—Details of electronic electricity meters related to remote communication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/18—Indicating phase sequence; Indicating synchronism

Definitions

  • the present invention relates to an intelligent power meter system capable of discriminating a phase of a distribution line, and a method of phase discrimination and conduction management of a distribution line using the same.
  • USING THE SAME specifically, by applying a phase port communication chip that enables the power meter and the DCU to discriminate phase information corresponding to each other, the phase of the transformer connected to the customer side is identified.
  • the present invention relates to an intelligent power meter system capable of discriminating phases of a distribution line to improve load unbalance and power loss in a furnace, and to enable conduction management, and a method of phase identification and conduction management of a distribution line using the same.
  • the transmission and distribution of power is usually through three phase power lines.
  • any one or three phase power lines of three phases ie, A, B, and C phases
  • the connection is complicated by branching and extending.
  • the complicated connection of the power line makes phase discrimination more difficult because it is difficult to distinguish the transmission line to which the customer is connected and through which phase the data (power amount, customer information) acquired from the transmission line is acquired.
  • the load unbalance of the distribution line can cause various problems such as overloading the transformer, decreasing efficiency, increasing maintenance costs, increasing unbalanced neutral current, generating neutral wire, and coping with challenges.
  • Korean Patent Laid-Open Publication No. 2014-0012300 relates to a system and method for identifying a ground line using harmonics, and transmits a phase discrimination signal through, for example, a specific harmonic through a distribution line of a specific phase in a data concentration unit (DCU).
  • the present invention discloses a technique for determining a phase of a distribution line connected to a customer by matching a phase of a customer and a distribution line one-to-one by receiving a response signal and a unique number of the terminal device from a terminal device connected to the corresponding phase. .
  • Korean Patent Publication No. 2014-0012300 discloses that a signal may be induced to a different phase in a process of transmitting and returning a signal, signal characteristics may be damaged by mutual interference, or signals may be mixed and conveyed through a neutral line, and noise may be transmitted.
  • the accuracy of phase discrimination may be lowered in the actual field application due to the weakness of the signal during transmission.
  • Korean Patent No. 1,321,020 relates to a distribution line phase determination system and method using a power line communication path, and receives power line communication path information from a power line communication network management system, groups customers, and then identifies phases by group.
  • a technique for statistically determining a phase of a distribution line that is statistically connected to each customer from a distribution transformer is disclosed by repeating a process of transmitting a signal and receiving a response.
  • Korean Patent No. 1,321,020 is only available to customers recorded in the power line communication network management system, the accuracy of the recording is not high, and the phase identification is probabilistically performed by repeatedly transmitting and receiving the signal to realize the actual reality. There are limitations such as the possibility of different results, the inability to measure in real time, and the need for additional equipment to operate the system.
  • An object of the present invention is to determine the phase of the transformer connected to the customer by applying a phase port communication chip that can discriminate the phase information corresponding to both the electricity meter and the DCU, load unbalance and power of the distribution line
  • the present invention provides an intelligent power meter system capable of identifying phases of a distribution line and improving a phase of the distribution line and conducting management method using the same.
  • DCU Data Concentration Unit
  • a DCU phase port communication chip for generating a phase information identification signal containing phase information unique to each phase
  • a power meter provided with a power meter upper port communication chip configured to generate a response signal corresponding to the phase information identification signal according to the phase information identification signal, wherein the DCU is present in the distribution line using the response signal.
  • the phase in use can be determined.
  • the AMI server for checking the load unbalance state of the distribution line by receiving the power load information of each phase identified by the DCU may further include a.
  • the AMI server that identifies the occurrence of a challenge by comparing may further include.
  • the DCU upper port communication chip may include a phase information identification signal generator for generating the phase information identification signal; A response signal checking unit for checking the response signal transmitted from the power meter phase port communication chip to determine a phase in use by the power meter; And a DCU communication unit for transmitting the phase information identification signal to the power meter upper port communication chip and receiving the response signal from the power meter upper port communication chip.
  • the power meter phase port communication chip may include: a phase information identification signal checking unit for checking phase information of the phase information identification signal to determine whether phase information corresponding to a phase currently being used is applicable; A response signal generator for generating the response signal according to a check result of the phase information identification signal checking unit; And an electricity meter communication unit for receiving the phase information identification signal from the electricity meter upper port communication chip, and transmitting the response signal to the electricity meter upper port communication chip.
  • the response signal generator may generate the response signal including the identification information and power usage information of the corresponding electricity meter in the phase information identification signal.
  • the response signal generator may generate the response signal including identification information and power consumption information of the corresponding electricity meter in the phase information currently being used.
  • phase identification and conduction management method of the distribution line DCU generating a phase information identification signal containing phase information unique to each phase and transmitting to the electricity meter; Generating a response signal corresponding to the phase information identification signal to the DCU as the electricity meter checks the phase information identification signal; And determining, by the DCU, a phase currently using power in a distribution line using the response signal.
  • the AMI server may receive the power load information of each phase identified by the DCU to check the load unbalance state of the distribution line.
  • the response signal may include identification information and power usage information of the corresponding electricity meter in the phase information identification signal.
  • the response signal may include identification information and power consumption information of the corresponding electricity meter in the phase information currently being used.
  • the present invention is applied to the power meter and the DCU to determine the phase of the transformer connected to the customer by applying a phase port communication chip that can determine the mutually corresponding phase information, the load unbalance and power loss of the distribution line Improve, and enable challenge management.
  • the present invention is able to accurately distinguish the phase of the distribution line in real time to grasp the power load of each phase in real time, and can cope with the load unbalance problem of the distribution line, transformer overload and efficiency reduction problem accurately and quickly, The maintenance cost can be reduced.
  • the present invention can grasp the actual power load and the display power load of each phase, saving the management cost and time for the challenge by 1/3, and the usage pattern, historical challenge history, data exchanged with the DCU and the metering period for each customer Comprehensive consideration of the size of the signal ensures accuracy in identifying challenging customers.
  • FIG. 1 is a view showing an intelligent power meter system capable of phase identification of a distribution line according to an embodiment of the present invention
  • FIG. 2 is a diagram showing a power meter and a DCU according to an embodiment of the present invention
  • FIG. 3 is a view showing a detailed configuration of a power meter and a top port communication chip provided in the DCU according to an embodiment of the present invention
  • FIGS. 4 and 5 are diagrams illustrating a phase determination and a conductive management method of a distribution line according to an embodiment of the present invention.
  • any part of the specification is to “include” any component, this means that it may further include other components, except to exclude other components unless otherwise stated.
  • a part is “connected” with another part, this includes not only the case where it is “directly connected” but also the case where it is “electrically connected” with another element between them.
  • part refers to a hardware component, such as software, FPGA or ASIC, and “part” plays certain roles. However, “part” is not meant to be limited to software or hardware.
  • the “unit” may be configured to be in an addressable storage medium and may be configured to play one or more processors.
  • a “part” refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, Subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays and variables.
  • the functionality provided within the components and “parts” may be combined into a smaller number of components and “parts” or further separated into additional components and “parts”.
  • FIG. 1 is a view showing an intelligent power meter system capable of phase identification of a distribution line according to an embodiment of the present invention.
  • an advanced metering infrastructure capable of determining a phase of a distribution line according to an embodiment of the present invention is used for remote meter reading of an amount of the electronic electricity meter 110 installed at a consumer side.
  • the meter reading data is collected from the data transfer unit (hereinafter referred to as "DCU") 120 and transmitted to the AMI server 130.
  • DCU data transfer unit
  • the intelligent power meter system may include a power meter 110, a DCU 120, and an AMI server 130.
  • the electricity meter 110 measures the amount of power electronically using a semiconductor device, and stores and displays the amount of power so that the consumer on the customer side can see it.
  • the electricity meter 110 may provide power information such as effective, reactive power, demand power, and power factor.
  • the electricity meter 110 transmits the electricity usage information of the customer to the DCU (110).
  • the DCU 120 is responsible for collecting the meter data of the electricity meter 110 of the consumer side.
  • the DCU 120 receives a command from the AMI server 130 to set and monitor a plurality of electricity meters 110, and communicates with the upper system to transfer, set, and manage the collected electricity meter information.
  • the DCU 120 communicates with the electricity meter 110 to collect and store electricity usage information of the customer.
  • the electricity meter 110 and the DCU 120 communicate with each other through a PLC modem.
  • the AMI server 130 manages configuration information such as the electricity meter 110 installed for meter reading, acquires and stores meter reading data, and provides usage information of each customer through a web browser.
  • the transformer 125 is to reduce the 22.9 kV of the primary side of the distribution line to 380V / 220V between the line / phase to supply to each customer connected to the secondary side, largely divided into the main column installed on the pole and the ground installed on the ground Can be.
  • the AMI server 130 is difficult to determine what phase of the transformer 125 is connected to a particular customer. For example, even if the single-phase electricity meter 110a connected to the first line and the neutral line of the distribution line is connected to the A phase in the field, the AMI server 130 determines which phase of the transformer 125 is connected to the single-phase electricity meter 110a. Difficult to confirm
  • the AMI server 130 is complexly connected to the customer's incoming line by branch, extension, etc., and knows on which transmission line the customer is connected and on what phase the meter reading data (power amount or customer information) acquired from the transmission line is acquired. Phase discrimination is more difficult because there is no number.
  • This may cause the load of the customer to be biased in a particular phase of the transformer 125, and may be directly connected to the load unbalance of the distribution line, which may cause various problems such as an increase in the neutral wire unbalanced current, a neutral wire heating, a transformer overload, and a decrease in efficiency.
  • the process of correcting the load unbalance state of the distribution line must be followed in a state where the load state of the entire distribution line can be checked by the DCU 120 or the AMI server 130.
  • FIG. 2 is a diagram illustrating a power meter and a DCU according to an embodiment of the present invention.
  • a power meter 110 and a DCU 120 are applied to a power meter 110 and a DCU 120 by applying a component that enables discrimination between phase information corresponding to each other. It is possible to check what phase the image of 125 is.
  • phase port communication chip a communication chip having a phase port for generating a phase information identification signal including phase information unique to each phase
  • the 'phase port' corresponds to an end point between the DCU 110 and the electricity meter 120 connected to a specific phase of the wiring line and designated for signal transmission of the specific phase. Signals loaded on each phase are combined with unique phase information for each phase that is not affected by damage or noise due to mutual interference.
  • the DCU 120 includes an A phase port communication chip 121, a B phase port communication chip 122, and a C phase port communication chip 123 for each phase.
  • the top port communication chip of the electricity meter 110 is connected to the distribution line of the phase so as to correspond to the top port communication chip of the DCU 120.
  • the phase A power meter 110a includes the phase A port communication chip 111 for responding to an identification signal transmitted through the phase A port communication chip 121 of the DCU 120. At this time, the A phase port communication chip 111 of the A phase electricity meter 110a is connected to the A phase distribution line.
  • the B-phase power meter 110b includes a B-phase port communication chip 112 for responding to an identification signal transmitted through the B-phase port communication chip 122 of the DCU 120. At this time, the B-phase port communication chip 112 of the B-phase electricity meter 110b is connected to the B-phase distribution line.
  • the C-phase power meter 110c includes a C-phase port communication chip 113 for responding to an identification signal transmitted through the C-phase port communication chip 123 of the DCU 120. At this time, the C phase port communication chip 113 of the C phase electricity meter 110c is connected to the C phase distribution line.
  • the three-phase power meter 110d responds to the identification signal transmitted through each of the A-phase port communication chip 111, the B-phase port communication chip 112, and the C-phase port communication chip 113 of the DCU 120.
  • a three-phase upper port communication chip 114 is provided. At this time, the three-phase port communication chip 114 of the three-phase electricity meter 110d is connected to the A, B, and C phase distribution lines, respectively.
  • the DCU 120 or the AMI server 130 includes the power meter 110 and the upper port communication chip corresponding to the DCU 120, so that the phase of the transformer 125 connected to the customer side can be identified. .
  • the DCU 120 may simultaneously transmit a phase information identification signal for each phase, and the electricity meter 110 checks and responds to the phase information identification information transmitted from the DCU 120.
  • the signals transmitted to each phase are all the same, or transmit only a signal corresponding to each one of each phase at a specific time point.
  • the electricity meter 110 does not use the upper port communication chip, the phase in use of power cannot be distinguished, and only the integrated power usage information can be transmitted.
  • FIG. 3 is a diagram illustrating a detailed configuration of an upper port communication chip provided in a power meter and a DCU according to an embodiment of the present invention.
  • the DCU upper port communication chip 220 may include a phase information identification signal generator 221, a DCU communication unit 222, and a response signal confirmation unit 223.
  • the electricity meter upper port communication chip 210 may include an electricity meter communication unit 211, a phase information identification signal checking unit 212, and a response signal generator 213.
  • the DCU upper port communication chip 220 When the DCU upper port communication chip 220 generates a phase information identification signal for identifying which phase of the transformer 125 is connected to the consumer side, and transmits the phase information identification signal to the electricity meter 110, the electricity meter upper port communication chip 210 Using this phase information identification signal, it confirms that it is a signal transmitted to itself and responds. Here, the electricity meter upper port communication chip 210 responds only to the phase information identification signal corresponding to the phase of the distribution line to which it is connected.
  • the DCU phase port communication chip 220 generates a phase information identification signal including phase information unique to each phase, and the electricity meter phase port communication chip 210 checks the phase information identification signal as the phase information identification signal. Generates a response signal corresponding to.
  • the configuration of the DCU upper port communication chip 220 is as follows.
  • the phase information identification signal generator 221 generates a phase information identification signal which is a signal including phase information for identifying a specific phase.
  • phase information identification signal generator 221 when the phase information identification signal generator 221 generates the phase information identification signal for phase A, the phase information identification signal including '1000' may be generated as phase information for phase A. Similarly, even when the phase information identification signal generator 221 generates phase information identification signals for phase B, phase C, and phase 3, phase information for phase B is '0100', phase information for phase C. A phase information identification signal including '1110' may be generated as phase information for '0010' and three phases, respectively.
  • the DCU communication unit 222 transmits the phase information identification signal generated by the phase information identification signal generator 221 to the power meter upper port communication chip 210, or transmits a response signal transmitted from the power meter upper port communication chip 210. Receive.
  • the response signal checking unit 223 checks the response signal transmitted from the electricity meter upper port communication chip 210 to determine the phase of power being used by the corresponding electricity meter 110.
  • the configuration of the electricity meter upper port communication chip 210 is as follows.
  • the electricity meter communication unit 211 receives the phase information identification signal transmitted from the DCU upper port communication chip 220, and transmits the response signal transmitted from the response signal generator 213 to the DCU upper port communication chip 220.
  • the phase information identification signal checking unit 212 checks phase information of the phase information identification signal transmitted from the electricity meter communication unit 211 to confirm whether the phase corresponds to a phase currently in use. That is, the phase information identification signal checking unit 212 generates a response signal generated by the response signal generator 213 only when the power meter 110 corresponds to a phase in use.
  • the response signal generator 213 generates a response signal according to the result of the identification of the phase information identification signal checker 212 and transmits the response signal to the DCU upper port communication chip 220 through the electricity meter communication unit 211. At this time, the response signal generator 213 transmits a response signal including its identification information and power consumption information to the received phase information identification signal (or phase information currently being used) by the DCU upper port communication chip 220. To send.
  • FIGS. 4 and 5 are diagrams illustrating a phase determination and a conductive management method of a distribution line according to an embodiment of the present invention.
  • the DCU 120 transmits a phase information identification signal having phase information combined to each phase to the power meter 110 in real time (S301).
  • the electricity meter 110 checks the phase information identification signal, generates a response signal, and transmits the generated response signal to the DCU 120 (S302).
  • the power meter 110 transmits a response signal including identification information of the corresponding electricity meter and power consumption information to the DCU 120 in the phase information identification signal received from the DCU 120.
  • the phase information identification signal is used as it is when generating a response signal because the phase information of any one of the three phase information is combined, so that the electricity meter 110 indicates phase information currently being used.
  • the DCU 120 transmits a response signal including its identification information and power consumption information to the phase information currently being used.
  • the DCU 120 uses the response signal transmitted from the electricity meter 110 to determine a phase currently being used in the power distribution line (S303). At this time, the DCU 120 checks the power load information of each phase in real time and transmits it to the AMI server 130 (S304). Through this, the AMI server 130 may check the load unbalance state of the distribution line (S305).
  • the AMI server 130 may perform challenge management after step S303.
  • the AMI server 130 calculates the sum (ie, display_power total consumption) of the power consumption of the corresponding customers for each phase transmitted from the DCU 120 (S311).
  • the AMI server 130 checks the sum of the actual power loads of the corresponding customers for each phase received from the DCU 120 in real time (that is, the actual power consumption) (S312).
  • the AMI server 130 compares the total display power consumption and the actual power consumption to determine whether there is a difference (ie, a challenge) above the mechanical loss (S313). In this case, the AMI server 130 excludes its own line loss from the difference between the actual power consumption and the display power consumption.
  • the AMI server 130 may check only the distribution line of the phase that is determined to have a challenge. This has the effect of reducing the amount of work to 1/3 of the existing level.
  • the AMI server 130 challenges the customer by considering the usage pattern for each customer, the past challenge history, and the size of the data signal exchanged between the DCU 120 and the electricity meter 110 among the customers who are determined to have the challenge. Accuracy of grasping can be ensured.
  • the method according to some embodiments may be embodied in the form of program instructions that may be executed by various computer means and recorded on a computer readable medium.
  • the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.
  • Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.
  • Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CDROMs, DVDs, and magnetic-optical such as floppy disks.
  • Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

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Abstract

The present invention relates to an advanced metering infrastructure capable of distinguishing between phases of a power line, and a method for distinguishing between phases of a power line and controlling stealing power by using the same. An advanced metering infrastructure capable of distinguishing between phases of a power line according to an embodiment of the present invention comprises: a data concentration unit (DCU) including a DCU phase port communication chip for generating a phase information identification signal containing phase information which is unique for each phase; and an electricity meter including an electricity meter phase port communication chip for identifying the phase information identification signal and, in response thereto, generating a response signal corresponding to the phase information identification signal, wherein the DCU uses the response signal to identify the phase through which power is currently being used on the power line.

Description

배전선로의 상 판별이 가능한 지능형전력량계시스템, 이를 이용한 배전선로의 상 판별 및 도전 관리 방법Intelligent electricity meter system that can discriminate phase of distribution line, phase discrimination and challenge management method of distribution line
본 발명은 배전선로의 상 판별이 가능한 지능형전력량계시스템, 이를 이용한 배전선로의 상 판별 및 도전 관리 방법(ADVANCED METERING INFRASTRUCTURE TO BE ABLE TO DISTINGUISHING PHASE OF POWER LINE, METHOD FOR DISTINGUISHING PHASE OF POWER LINE AND MANAGING STEALING POWER USING THE SAME)에 관한 것으로, 구체적으로는 전력량계와 DCU에 양자간에 상호 대응하는 상정보를 판별 가능하게 하는 상포트 통신칩을 적용하여 수용가측에 연결되어 있는 변압기의 상이 어떤 상인지를 확인함으로써, 배전선로의 부하 불평형 및 전력 손실을 개선하고, 도전 관리를 가능하게 하기 위한, 배전선로의 상 판별이 가능한 지능형전력량계시스템, 이를 이용한 배전선로의 상 판별 및 도전 관리 방법에 관한 것이다.The present invention relates to an intelligent power meter system capable of discriminating a phase of a distribution line, and a method of phase discrimination and conduction management of a distribution line using the same. USING THE SAME), specifically, by applying a phase port communication chip that enables the power meter and the DCU to discriminate phase information corresponding to each other, the phase of the transformer connected to the customer side is identified. The present invention relates to an intelligent power meter system capable of discriminating phases of a distribution line to improve load unbalance and power loss in a furnace, and to enable conduction management, and a method of phase identification and conduction management of a distribution line using the same.
전력의 송전 및 배전은 대체로 3상의 전력선을 통해 이루어진다. 그리고 변압기에서 고객으로 전력을 송전하기 위해서는 배전계통에서 변압기의 2차측에서 3상(즉, A, B, C상)의 전력선 중 어느 하나의 상 또는 3상의 전력선이 고객의 인입선(service wire)에 분기, 연장 등의 방법으로 복잡하게 연결된다.The transmission and distribution of power is usually through three phase power lines. In order to transmit power from the transformer to the customer, any one or three phase power lines of three phases (ie, A, B, and C phases) are connected to the service wire of the customer at the secondary side of the transformer in the distribution system. The connection is complicated by branching and extending.
이와 같이 전력선의 복잡한 연결은 고객이 접속된 전송선과 그 전송선에서 취득된 데이터(전력량, 고객정보)가 어느 상을 통해 취득되는지를 구별하기 곤란하므로 상 판별이 더욱 어렵다.As described above, the complicated connection of the power line makes phase discrimination more difficult because it is difficult to distinguish the transmission line to which the customer is connected and through which phase the data (power amount, customer information) acquired from the transmission line is acquired.
이는 배전용 변압기의 특정 상에 고객의 부하가 편중될 수 있기 때문에 배전선로의 부하 불평형을 유발할 수 있다. 이러한 배전선로의 부하 불평형은 변압기 과부하와 효율저하, 유지비용 증가, 중성선 불평형 전류 증가, 중성선 발열, 도전에 대한 대처 어려움 등 다양한 문제를 발생시킬 수 있다.This may cause load unbalance in the distribution line because the customer's load may be biased on a particular phase of the distribution transformer. The load unbalance of the distribution line can cause various problems such as overloading the transformer, decreasing efficiency, increasing maintenance costs, increasing unbalanced neutral current, generating neutral wire, and coping with challenges.
종래에 배전선로의 상 판별과 관련된 기술은 한국공개특허 제2014-0012300호와 한국등록특허 제1,321,020호를 통해 제안된 바 있다.Conventionally, a technology related to phase identification of a distribution line has been proposed through Korean Patent Publication No. 2014-0012300 and Korean Patent Registration No. 1,321,020.
먼저, 한국공개특허 제2014-0012300호는 고조파를 이용한 지중 인입선 판별 시스템 및 방법에 관한 것으로서, 데이터집중장치(DCU)에서 특정 상의 배전선로를 통해, 예를 들면 특정 고조파로 상 판별 신호를 전송하고, 해당 상에 연결된 단말장치(전력량계)로부터 응답신호 및 단말장치 고유번호를 회신받아 고객과 배전선로의 상을 일대일로 매칭함으로써, 해당 고객에 연결된 배전선로의 상을 판별하는 기술에 대해 개시되어 있다.First, Korean Patent Laid-Open Publication No. 2014-0012300 relates to a system and method for identifying a ground line using harmonics, and transmits a phase discrimination signal through, for example, a specific harmonic through a distribution line of a specific phase in a data concentration unit (DCU). The present invention discloses a technique for determining a phase of a distribution line connected to a customer by matching a phase of a customer and a distribution line one-to-one by receiving a response signal and a unique number of the terminal device from a terminal device connected to the corresponding phase. .
하지만, 한국공개특허 제2014-0012300호는 신호의 전송 및 회신 과정에서 특정 상에서 다른 상으로 신호가 유기되거나, 상호 간섭에 의해 신호 특성이 훼손되거나, 중성선을 통해 신호가 섞여 반송될 수 있으며, 노이즈나 신호의 세기가 전송 과정에서 약해지는 등의 이유로 인해, 실제 현장 적용시 상 판별의 정확도가 떨어질 수 있다.However, Korean Patent Publication No. 2014-0012300 discloses that a signal may be induced to a different phase in a process of transmitting and returning a signal, signal characteristics may be damaged by mutual interference, or signals may be mixed and conveyed through a neutral line, and noise may be transmitted. However, the accuracy of phase discrimination may be lowered in the actual field application due to the weakness of the signal during transmission.
다음으로, 한국등록특허 제1,321,020호는 전력선 통신 경로를 이용한 배전선로 상 판별 시스템 및 방법에 관한 것으로서, 전력선 통신 네트워크 관리 시스템으로부터 전력선 통신 경로 정보를 전달받아, 고객들을 그룹화한 후, 그룹별로 상 판별 신호를 전송하고 응답을 수신하는 과정을 반복하여, 통계적으로 배전용 변압기에서 각 고객까지 연결되는 배전선로의 상을 판별하는 기술에 대해 개시되어 있다.Next, Korean Patent No. 1,321,020 relates to a distribution line phase determination system and method using a power line communication path, and receives power line communication path information from a power line communication network management system, groups customers, and then identifies phases by group. A technique for statistically determining a phase of a distribution line that is statistically connected to each customer from a distribution transformer is disclosed by repeating a process of transmitting a signal and receiving a response.
그러나, 한국등록특허 제1,321,020호는 전력선 통신 네트워크 관리 시스템에 기록된 고객만 가능하다는 점, 그 기록의 정확성이 높지 않다는 점, 신호의 전송과 수신을 반복하여 확률적으로 상 판별을 진행함으로써 실제 현실과 다른 결과가 나올 수 있으며, 실시간으로 측정이 불가능하다는 점, 나아가 이 시스템을 운용하기 위해 별도의 추가적인 장치가 필요하다는 점 등의 한계가 있다.However, Korean Patent No. 1,321,020 is only available to customers recorded in the power line communication network management system, the accuracy of the recording is not high, and the phase identification is probabilistically performed by repeatedly transmitting and receiving the signal to realize the actual reality. There are limitations such as the possibility of different results, the inability to measure in real time, and the need for additional equipment to operate the system.
아울러, 종래에는 도전이 확인되면 그 근원을 추적하기 위해 특정 변압기에 연결된 모든 전송선과 고객을 점검해야 하기 때문에 대처에 시간과 비용이 많이 소요되었다.In addition, conventionally, when the challenge is confirmed, it is time-consuming and expensive to cope because all transmission lines and customers connected to a specific transformer have to be checked to trace the source.
따라서, 종래에는 실시간으로 정확하게 배전선로의 상 판별을 가능하게 할 수 있는 방안이 제안될 필요가 있다.Therefore, in the related art, a method capable of accurately determining a phase of a distribution line in real time needs to be proposed.
본 발명의 목적은 전력량계와 DCU에 양자간에 상호 대응하는 상정보를 판별 가능하게 하는 상포트 통신칩을 적용하여 수용가측에 연결되어 있는 변압기의 상이 어떤 상인지를 확인함으로써, 배전선로의 부하 불평형 및 전력 손실을 개선하고, 도전 관리를 가능하게 하기 위한, 배전선로의 상 판별이 가능한 지능형전력량계시스템, 이를 이용한 배전선로의 상 판별 및 도전 관리 방법을 제공하는데 있다.An object of the present invention is to determine the phase of the transformer connected to the customer by applying a phase port communication chip that can discriminate the phase information corresponding to both the electricity meter and the DCU, load unbalance and power of the distribution line The present invention provides an intelligent power meter system capable of identifying phases of a distribution line and improving a phase of the distribution line and conducting management method using the same.
본 발명의 일실시예에 따른 배전선로의 상 판별이 가능한 지능형전력량계시스템은, 상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시키는 DCU 상포트 통신칩이 구비되는 DCU(Data Concentration Unit); 및 상기 상정보 식별신호를 확인함에 따라 상기 상정보 식별신호에 대응하는 응답신호를 발생시키는 전력량계 상포트 통신칩이 구비되는 전력량계;를 포함하고, 상기 DCU는 상기 응답신호를 이용하여 배전선로에서 현재 전력 사용중인 상을 판별할 수 있다.Intelligent power meter system capable of phase identification of a distribution line according to an embodiment of the present invention, DCU (Data Concentration Unit) is provided with a DCU phase port communication chip for generating a phase information identification signal containing phase information unique to each phase ; And a power meter provided with a power meter upper port communication chip configured to generate a response signal corresponding to the phase information identification signal according to the phase information identification signal, wherein the DCU is present in the distribution line using the response signal. The phase in use can be determined.
본 발명의 일실시예에 따르면, 상기 DCU에 의해 확인된 각 상의 전력부하 정보를 전달받아 배전선로의 부하 불평형 상태를 확인하는 AMI 서버;를 더 포함할 수 있다.According to an embodiment of the present invention, the AMI server for checking the load unbalance state of the distribution line by receiving the power load information of each phase identified by the DCU may further include a.
본 발명의 일실시예에 따르면, 상기 DCU로부터 전송받은 각 상별로 해당하는 고객들에 대해, 전력사용량의 합인 '표시_전력 총사용량'과 실제 전력부하량의 합인 '실제_전력 총사용량'을 계산하여 비교함으로써 도전 발생을 확인하는 AMI 서버;를 더 포함할 수 있다.According to an embodiment of the present invention, for the corresponding customers for each phase received from the DCU, by calculating the 'actual_power total consumption' that is the sum of the power consumption 'indication_power total consumption' and the actual power load The AMI server that identifies the occurrence of a challenge by comparing may further include.
상기 DCU 상포트 통신칩은, 상기 상정보 식별신호를 발생하기 위한 상정보 식별신호 발생부; 상기 전력량계 상포트 통신칩으로부터 전송된 상기 응답신호를 확인하여 상기 전력량계에서 전력 사용중인 상을 판별하기 위한 응답신호 확인부; 및 상기 상정보 식별신호를 상기 전력량계 상포트 통신칩으로 송신하고, 상기 응답신호를 상기 전력량계 상포트 통신칩으로부터 수신하기 위한 DCU 통신부;를 포함할 수 있다.The DCU upper port communication chip may include a phase information identification signal generator for generating the phase information identification signal; A response signal checking unit for checking the response signal transmitted from the power meter phase port communication chip to determine a phase in use by the power meter; And a DCU communication unit for transmitting the phase information identification signal to the power meter upper port communication chip and receiving the response signal from the power meter upper port communication chip.
상기 전력량계 상포트 통신칩은, 상기 상정보 식별신호의 상정보를 확인하여 현재 전력 사용중인 상에 대응되는 상정보가 해당되는지를 확인하기 위한 상정보 식별신호 확인부; 상기 상정보 식별신호 확인부의 확인 결과에 따라, 상기 응답신호를 발생시키기 위한 응답신호 발생부; 및 상기 상정보 식별신호를 상기 전력량계 상포트 통신칩으로부터 수신하고, 상기 응답신호를 상기 전력량계 상포트 통신칩로 송신하기 위한 전력량계 통신부;를 포함할 수 있다.The power meter phase port communication chip may include: a phase information identification signal checking unit for checking phase information of the phase information identification signal to determine whether phase information corresponding to a phase currently being used is applicable; A response signal generator for generating the response signal according to a check result of the phase information identification signal checking unit; And an electricity meter communication unit for receiving the phase information identification signal from the electricity meter upper port communication chip, and transmitting the response signal to the electricity meter upper port communication chip.
상기 응답신호 발생부는, 단상 전력량계의 경우에, 상기 상정보 식별신호에 해당 전력량계의 식별정보와 전력사용 정보가 포함된 상기 응답신호를 발생시킬 수 있다.In the case of the single-phase electricity meter, the response signal generator may generate the response signal including the identification information and power usage information of the corresponding electricity meter in the phase information identification signal.
상기 응답신호 발생부는, 3상 전력량계의 경우에, 현재 전력 사용중인 상정보에 해당 전력량계의 식별정보와 전력사용량 정보가 포함된 상기 응답신호를 발생시킬 수 있다.In the case of a three-phase electricity meter, the response signal generator may generate the response signal including identification information and power consumption information of the corresponding electricity meter in the phase information currently being used.
한편, 본 발명의 일실시예에 따른 배전선로의 상 판별 및 도전 관리 방법은, DCU가 상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시켜 전력량계로 전송하는 단계; 상기 전력량계가 상기 상정보 식별신호를 확인함에 따라 상기 상정보 식별신호에 대응하는 응답신호를 발생시켜 상기 DCU로 전송하는 단계; 및 상기 DCU가 상기 응답신호를 이용하여 배전선로에서 현재 전력 사용중인 상을 판별하는 단계;를 포함할 수 있다.On the other hand, phase identification and conduction management method of the distribution line according to an embodiment of the present invention, DCU generating a phase information identification signal containing phase information unique to each phase and transmitting to the electricity meter; Generating a response signal corresponding to the phase information identification signal to the DCU as the electricity meter checks the phase information identification signal; And determining, by the DCU, a phase currently using power in a distribution line using the response signal.
본 발명의 일실시예에 따르면, AMI 서버가 상기 DCU에 의해 확인된 각 상의 전력부하 정보를 전달받아 배전선로의 부하 불평형 상태를 확인하는 단계;를 더 포함할 수 있다.According to an embodiment of the present invention, the AMI server may receive the power load information of each phase identified by the DCU to check the load unbalance state of the distribution line.
본 발명의 일실시예에 따르면, AMI 서버가 상기 DCU로부터 전송받은 각 상별로 해당하는 고객들의 전력 사용량의 합인 표시_전력 총사용량을 계산하는 단계; 상기 AMI 서버가 각 상별로 해당하는 고객들의 실제 전력부하량의 합인 실제_전력 총사용량을 확인하는 단계; 및 상기 AMI 서버가 상기 표시_전력 총사용량과 상기 실제_전력 총사용량을 비교하여 도전이 발생하는지를 확인하는 단계;를 더 포함할 수 있다.According to an embodiment of the present invention, a step of calculating, by the AMI server, the total display power consumption, which is the sum of power consumptions of the corresponding customers for each phase received from the DCU; Confirming, by the AMI server, actual total power consumption, which is the sum of actual power loads of customers corresponding to each phase; And comparing, by the AMI server, the total display power consumption with the actual power consumption to determine whether a challenge occurs.
상기 응답신호는, 단상 전력량계의 경우에, 상기 상정보 식별신호에 해당 전력량계의 식별정보와 전력사용 정보가 포함될 수 있다.In the case of the single-phase electricity meter, the response signal may include identification information and power usage information of the corresponding electricity meter in the phase information identification signal.
상기 응답신호는, 3상 전력량계의 경우에, 현재 전력 사용중인 상정보에 해당 전력량계의 식별정보와 전력사용량 정보가 포함될 수 있다.In the case of the three-phase electricity meter, the response signal may include identification information and power consumption information of the corresponding electricity meter in the phase information currently being used.
본 발명은 전력량계와 DCU에 양자간에 상호 대응하는 상정보를 판별 가능하게 하는 상포트 통신칩을 적용하여 수용가측에 연결되어 있는 변압기의 상이 어떤 상인지를 확인함으로써, 배전선로의 부하 불평형 및 전력 손실을 개선하고, 도전 관리를 가능하게 할 수 있다.The present invention is applied to the power meter and the DCU to determine the phase of the transformer connected to the customer by applying a phase port communication chip that can determine the mutually corresponding phase information, the load unbalance and power loss of the distribution line Improve, and enable challenge management.
또한, 본 발명은 실시간으로 정확하게 배전선로의 상 구분이 가능하여 각 상의 전력부하를 실시간을 파악하고, 배전선로의 부하 불평형 문제, 변압기 과부하 및 효율저하 문제를 정확하고, 신속하게 대처할 수 있고, 배전선로 운영유지비를 절감할 수 있다.In addition, the present invention is able to accurately distinguish the phase of the distribution line in real time to grasp the power load of each phase in real time, and can cope with the load unbalance problem of the distribution line, transformer overload and efficiency reduction problem accurately and quickly, The maintenance cost can be reduced.
또한, 본 발명은 각 상의 실제 전력부하와 표시 전력부하를 파악할 수 있게 되어 도전에 대한 관리비용과 시간이 1/3으로 절약되며, 고객별 사용량 패턴, 과거 도전이력, DCU와 계량기간 주고받는 데이터 신호의 크기 등을 종합적으로 고려하면 도전 고객 파악 정확도를 확보할 수 있다.In addition, the present invention can grasp the actual power load and the display power load of each phase, saving the management cost and time for the challenge by 1/3, and the usage pattern, historical challenge history, data exchanged with the DCU and the metering period for each customer Comprehensive consideration of the size of the signal ensures accuracy in identifying challenging customers.
도 1은 본 발명의 일실시예에 따른 배전선로의 상 판별이 가능한 지능형전력량계시스템을 나타낸 도면,1 is a view showing an intelligent power meter system capable of phase identification of a distribution line according to an embodiment of the present invention;
도 2는 본 발명의 일실시예에 따른 전력량계와 DCU를 나타낸 도면,2 is a diagram showing a power meter and a DCU according to an embodiment of the present invention;
도 3은 본 발명의 일실시예에 따른 전력량계와 DCU에 구비된 상포트 통신칩의 세부 구성을 나타낸 도면,3 is a view showing a detailed configuration of a power meter and a top port communication chip provided in the DCU according to an embodiment of the present invention;
도 4 및 도 5는 본 발명의 일실시예에 따른 배전선로의 상 판별 및 도전 관리 방법에 대한 도면이다.4 and 5 are diagrams illustrating a phase determination and a conductive management method of a distribution line according to an embodiment of the present invention.
이하 본 발명의 바람직한 실시 예를 첨부한 도면을 참조하여 상세히 설명한다. 다만, 하기의 설명 및 첨부된 도면에서 본 발명의 요지를 흐릴 수 있는 공지 기능 또는 구성에 대한 상세한 설명은 생략한다. 또한, 도면 전체에 걸쳐 동일한 구성 요소들은 가능한 한 동일한 도면 부호로 나타내고 있음에 유의하여야 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description and the accompanying drawings, detailed descriptions of well-known functions or configurations that may obscure the subject matter of the present invention will be omitted. In addition, it should be noted that like elements are denoted by like reference numerals as much as possible throughout the drawings.
이하에서 설명되는 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위한 용어로 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors are properly defined as terms for explaining their own invention in the best way. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.
따라서 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, and various alternatives may be substituted at the time of the present application. It should be understood that there may be equivalents and variations.
첨부 도면에 있어서 일부 구성요소는 과장되거나 생략되거나 또는 개략적으로 도시되었으며, 각 구성요소의 크기는 실제 크기를 전적으로 반영하는 것이 아니다. 본 발명은 첨부한 도면에 그려진 상대적인 크기나 간격에 의해 제한되어지지 않는다.In the accompanying drawings, some components are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size. The invention is not limited by the relative size or spacing drawn in the accompanying drawings.
명세서 전체에서 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있음을 의미한다. 또한, 어떤 부분이 다른 부분과 "연결"되어 있다고 할 때, 이는 "직접적으로 연결"되어 있는 경우뿐 아니라, 그 중간에 다른 소자를 사이에 두고 "전기적으로 연결"되어 있는 경우도 포함한다.When any part of the specification is to "include" any component, this means that it may further include other components, except to exclude other components unless otherwise stated. In addition, when a part is "connected" with another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element between them.
단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. "포함하다" 또는 "가지다" 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.Singular expressions include plural expressions unless the context clearly indicates otherwise. The terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features, numbers, steps It is to be understood that the present invention does not exclude in advance the possibility of the presence or the addition of an operation, a component, a part, or a combination thereof.
또한, 명세서에서 사용되는 "부"라는 용어는 소프트웨어, FPGA 또는 ASIC과 같은 하드웨어 구성요소를 의미하며, "부"는 어떤 역할들을 수행한다. 그렇지만 "부"는 소프트웨어 또는 하드웨어에 한정되는 의미는 아니다. "부"는 어드레싱할 수 있는 저장 매체에 있도록 구성될 수도 있고 하나 또는 그 이상의 프로세서들을 재생시키도록 구성될 수도 있다. 따라서, 일 예로서 "부"는 소프트웨어 구성요소들, 객체지향 소프트웨어 구성요소들, 클래스 구성요소들 및 태스크 구성요소들과 같은 구성요소들과, 프로세스들, 함수들, 속성들, 프로시저들, 서브루틴들, 프로그램 코드의 세그먼트들, 드라이버들, 펌웨어, 마이크로 코드, 회로, 데이터, 데이터베이스, 데이터 구조들, 테이블들, 어레이들 및 변수들을 포함한다. 구성요소들과 "부"들 안에서 제공되는 기능은 더 작은 수의 구성요소들 및 "부"들로 결합되거나 추가적인 구성요소들과 "부"들로 더 분리될 수 있다.In addition, the term "part" as used herein refers to a hardware component, such as software, FPGA or ASIC, and "part" plays certain roles. However, "part" is not meant to be limited to software or hardware. The “unit” may be configured to be in an addressable storage medium and may be configured to play one or more processors. Thus, as an example, a "part" refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, Subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays and variables. The functionality provided within the components and "parts" may be combined into a smaller number of components and "parts" or further separated into additional components and "parts".
아래에서는 첨부한 도면을 참고하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙였다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명의 일실시예에 따른 배전선로의 상 판별이 가능한 지능형전력량계시스템을 나타낸 도면이다.1 is a view showing an intelligent power meter system capable of phase identification of a distribution line according to an embodiment of the present invention.
도 1에 도시된 바와 같이, 본 발명의 일실시예에 따른 배전선로의 상 판별이 가능한 지능형전력량계시스템(Advanced Metering Infrastructure: AMI)은, 수용가측에 설치된 전자식 전력량계(110)의 사용량을 원격검침용 슬레이브 모뎀과 마스터 모뎀을 이용하여 검침데이터 데이터전송장치(Data Concentration Unit: 이하 "DCU"라 함)(120)에서 수집하여 AMI 서버(130)로 전송하게 된다.As shown in FIG. 1, an advanced metering infrastructure (AMI) capable of determining a phase of a distribution line according to an embodiment of the present invention is used for remote meter reading of an amount of the electronic electricity meter 110 installed at a consumer side. Using the slave modem and the master modem, the meter reading data is collected from the data transfer unit (hereinafter referred to as "DCU") 120 and transmitted to the AMI server 130.
이처럼 지능형전력량계시스템은 전력량계(110), DCU(120), AMI 서버(130)를 포함할 수 있다.As such, the intelligent power meter system may include a power meter 110, a DCU 120, and an AMI server 130.
전력량계(110)는 반도체 소자를 이용하는 전자식으로 전력량을 측정하고 그 전력량을 수용가측의 소비자가 볼 수 있도록 저장 및 표시하는 기능을 수행한다. 일반적으로 전력량계(110)는 유효, 무효 전력량 및 수요전력량, 역률 등의 전력정보를 제공할 수 있다. 이때, 전력량계(110)는 고객의 전기사용정보 등을 DCU(110)로 전송한다. The electricity meter 110 measures the amount of power electronically using a semiconductor device, and stores and displays the amount of power so that the consumer on the customer side can see it. In general, the electricity meter 110 may provide power information such as effective, reactive power, demand power, and power factor. At this time, the electricity meter 110 transmits the electricity usage information of the customer to the DCU (110).
DCU(120)는 수용가측의 전력량계(110)의 검침데이터를 수집하는 기능을 담당한다. 이때, DCU(120)는 AMI 서버(130)의 명령을 입력받아 다수의 전력량계(110)를 설정 및 모니터링하며, 상위 시스템과 상호 통신하여 수집된 전력량계 정보를 전달, 설정 및 관리하는 기능을 담당한다. 또한, DCU(120)는 전력량계(110)와 통신하여 고객의 전기사용정보를 수집 및 저장한다. 이때, 전력량계(110)와 DCU(120)는 PLC 모뎀을 통해 상호 통신한다. DCU 120 is responsible for collecting the meter data of the electricity meter 110 of the consumer side. In this case, the DCU 120 receives a command from the AMI server 130 to set and monitor a plurality of electricity meters 110, and communicates with the upper system to transfer, set, and manage the collected electricity meter information. . In addition, the DCU 120 communicates with the electricity meter 110 to collect and store electricity usage information of the customer. At this time, the electricity meter 110 and the DCU 120 communicate with each other through a PLC modem.
AMI 서버(130)는 검침을 위해 설치되는 전력량계(110) 등의 구성 정보를 관리하고 검침 데이터를 취득, 저장하며 웹브라우저를 통하여 각 수용가의 사용 정보를 제공한다. The AMI server 130 manages configuration information such as the electricity meter 110 installed for meter reading, acquires and stores meter reading data, and provides usage information of each customer through a web browser.
한편, 변압기(125)는 배전선로 1차측의 22.9㎸를 선간/상간 380V/220V로 감압하여 2차측에 연결된 각 수용가에 공급하는 것이며, 크게 전주 위에 설치되는 주상용과 지면에 설치되는 지중용으로 구분될 수 있다.On the other hand, the transformer 125 is to reduce the 22.9 ㎸ of the primary side of the distribution line to 380V / 220V between the line / phase to supply to each customer connected to the secondary side, largely divided into the main column installed on the pole and the ground installed on the ground Can be.
대부분의 수용가에서는 3상 배전용 변압기중 임의의 1개 상과 중성선을 인출하는 단상 2선식 전력량계(110a, 110b, 110c)가 설치되거나, 3개 상과 중성선을 인출하는 3상 4선식 전력량계(110d)가 설치될 수 있다.Most consumers are equipped with single-phase two- wire wattmeters 110a, 110b, 110c for drawing any one phase and neutral wire among three-phase distribution transformers, or three-phase four-wire wattmeters for drawing three phase and neutral wires (110d). ) Can be installed.
여기서, 배전선로 1선과 중선선에 연결된 단상 전력량계(110a)는 도 1에서 한 개만 도시하였으나, 실제로 DCU(120)와 동일 배전선로에 연결되는 다수 개가 여러 지역에 흩어져 설치된다. 마찬가지로, 배전선로 2선과 중선선에 연결된 단상 전력량계(110b), 배전선로 3선과 중성선에 연결된 단상 전력량계(110c), 3상에 연결된 3상 전력량계(110d)에 대해서도 단상 전력량계(110a)와 동일하게 이해될 수 있을 것이다. 아울러, 배전선로 1선, 2선 및 3선 각각은 설명의 편의상 A, B 및 C의 위상을 가지는 것으로 가정하여 설명하기로 한다.Here, although only one single-phase power meter 110a connected to one distribution line and a middle line is shown in FIG. 1, a plurality of electricity is connected to the same distribution line as the DCU 120 and are scattered in various regions. Similarly, the single-phase electricity meter 110b connected to the two distribution lines and the neutral line, the single-phase electricity meter 110c connected to the three distribution lines and the neutral line, and the three-phase electricity meter 110d connected to the three phases are understood in the same manner as the single-phase electricity meter 110a. Could be. In addition, it will be described on the assumption that each of the distribution line 1, 2 and 3 wire has a phase of A, B and C for convenience of description.
그런데, AMI 서버(130)는 특정 수용가에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인하기 어렵다. 예를 들어, 배전선로의 1선과 중성선에 연결된 단상 전력량계(110a)는 현장에서 A상에 연결되더라도, AMI 서버(130)는 단상 전력량계(110a)에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인하기 곤란하다.However, the AMI server 130 is difficult to determine what phase of the transformer 125 is connected to a particular customer. For example, even if the single-phase electricity meter 110a connected to the first line and the neutral line of the distribution line is connected to the A phase in the field, the AMI server 130 determines which phase of the transformer 125 is connected to the single-phase electricity meter 110a. Difficult to confirm
즉, AMI 서버(130)는 고객의 인입선에 분기, 연장 등으로 복잡하게 연결되고, 고객이 접속된 전송선과 그 전송선에서 취득된 검침데이터(전력량 또는 고객정보)가 어떤 상에서 취득된 데이터인지를 알 수가 없기 때문에 상 판별이 더욱 힘들다.That is, the AMI server 130 is complexly connected to the customer's incoming line by branch, extension, etc., and knows on which transmission line the customer is connected and on what phase the meter reading data (power amount or customer information) acquired from the transmission line is acquired. Phase discrimination is more difficult because there is no number.
이는 변압기(125)의 특정 상에 수용가의 부하가 편중될 우려가 있고, 곧바로 배전선로의 부하 불평형으로 직결되어 중성선 불평형 전류 증가, 중성선 발열, 변압기 과부하 및 효율 저하 등 다양한 문제를 발생시킬 수 있다.This may cause the load of the customer to be biased in a particular phase of the transformer 125, and may be directly connected to the load unbalance of the distribution line, which may cause various problems such as an increase in the neutral wire unbalanced current, a neutral wire heating, a transformer overload, and a decrease in efficiency.
특정 수용가에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인하려면, 사람들이 수용가에 직접 방문하여 변압기(125)의 상이 어떤 상인지를 직접 판별하는 과정이 필요하다. To determine which phase of the transformer 125 is connected to a particular customer, people need to directly visit the customer to determine what phase of the transformer 125 is the phase.
하지만, 이러한 판별 과정은 수용가측에서 변압기(125)의 상이 어떤 상인지를 판별하여 알 수 있더라도, 하나의 DCU(120)에 동일한 배전선로를 통해 연결되는 전력량계(120)의 개수가 상당히 많고, 특정 수용가의 상황(예를 들어, 건물의 신축, 변경, 이사 등)이 수시로 변경할 수 있기 때문에 DCU(120) 또는 AMI 서버(130)에서 전력량계(120)의 상정보를 정확하게 확인하는 것이 쉽지 않다.However, this determination process, even if it can be seen by determining the phase of the transformer 125 in the customer side, the number of electricity meters 120 are connected to one DCU 120 through the same distribution line is quite large, the specific customer Since the situation (for example, new building, change, moving, etc.) can be changed at any time, it is not easy to accurately check the phase information of the electricity meter 120 in the DCU 120 or AMI server 130.
아울러, 현장에서는 배전선로의 부하 불평형 상태를 전체적으로 확인하기 곤란하여 배전선로에 부하를 연결할 때 임의로 연결할 수 밖에 없기 때문에, 배전선로의 부하 불평형을 회피하는 것이 어렵다. In addition, in the field, it is difficult to check the load unbalance of the distribution line as a whole, and when the load is connected to the distribution line, it is inevitable to arbitrarily connect, so it is difficult to avoid the load unbalance of the distribution line.
따라서, 배전선로의 부하 불평형을 해소하기 위해서는 DCU(120) 또는 AMI 서버(130)에서 전체적인 배전선로의 부하 상태를 확인 가능한 상태에서, 배전선로의 부하 불평형 상태를 시정하는 과정이 뒤따라야 한다.Therefore, in order to solve the load unbalance of the distribution line, the process of correcting the load unbalance state of the distribution line must be followed in a state where the load state of the entire distribution line can be checked by the DCU 120 or the AMI server 130.
도 2는 본 발명의 일실시예에 따른 전력량계와 DCU를 나타낸 도면이다.2 is a diagram illustrating a power meter and a DCU according to an embodiment of the present invention.
도 2를 참조하면, 본 발명의 일실시예에 따른 전력량계(110)와 DCU(120)에는, 양자간에 상호 대응하는 상정보를 판별 가능하게 하는 구성요소를 적용함으로써, 수용가측에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인할 수 있다.Referring to FIG. 2, a power meter 110 and a DCU 120 according to an embodiment of the present invention are applied to a power meter 110 and a DCU 120 by applying a component that enables discrimination between phase information corresponding to each other. It is possible to check what phase the image of 125 is.
여기서, 상정보를 판별 가능하게 하는 구성요소는 '상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시키는 상포트(phase port)가 구비된 통신칩(이하 "상포트 통신칩"이라 함)'이 상별로 적용된 형태로 전력량계(110)와 DCU(120)의 모뎀에 내장될 수 있다.Here, the component for determining the phase information is a communication chip having a phase port for generating a phase information identification signal including phase information unique to each phase (hereinafter referred to as "phase port communication chip"). ) 'May be embedded in the modem of the electricity meter 110 and the DCU 120 in a form applied to each phase.
또한, '상포트'라 함은 배선라인의 특정 상에 연결되어 특정 상의 신호 전달을 위해 지정되는 DCU(110)와 전력량계(120) 사이의 종단점에 해당한다. 각 상에 로딩되는 신호에는 상호 간섭에 의한 훼손이나 노이즈 등에 영향을 받지 않는 상별로 고유한 상정보가 결합된다.In addition, the 'phase port' corresponds to an end point between the DCU 110 and the electricity meter 120 connected to a specific phase of the wiring line and designated for signal transmission of the specific phase. Signals loaded on each phase are combined with unique phase information for each phase that is not affected by damage or noise due to mutual interference.
구체적으로, DCU(120)는 A상 상포트 통신칩(121), B상 상포트 통신칩(122), C상 상포트 통신칩(123)을 상별로 구비한다.In detail, the DCU 120 includes an A phase port communication chip 121, a B phase port communication chip 122, and a C phase port communication chip 123 for each phase.
이에 따라, 전력량계(110)의 상포트 통신칩은 DCU(120)의 상포트 통신칩에 대응될 수 있도록 해당 상의 배전선로에 연결된다.Accordingly, the top port communication chip of the electricity meter 110 is connected to the distribution line of the phase so as to correspond to the top port communication chip of the DCU 120.
즉, A상 전력량계(110a)는 DCU(120)의 A상 상포트 통신칩(121)을 통해 전송되는 식별신호에 응답하기 위한 A상 상포트 통신칩(111)을 구비한다. 이때, A상 전력량계(110a)의 A상 상포트 통신칩(111)은 A상 배전선로에 연결된다.That is, the phase A power meter 110a includes the phase A port communication chip 111 for responding to an identification signal transmitted through the phase A port communication chip 121 of the DCU 120. At this time, the A phase port communication chip 111 of the A phase electricity meter 110a is connected to the A phase distribution line.
또한, B상 전력량계(110b)는 DCU(120)의 B상 상포트 통신칩(122)을 통해 전송되는 식별신호에 응답하기 위한 B상 상포트 통신칩(112)을 구비한다. 이때, B상 전력량계(110b)의 B상 상포트 통신칩(112)은 B상 배전선로에 연결된다.In addition, the B-phase power meter 110b includes a B-phase port communication chip 112 for responding to an identification signal transmitted through the B-phase port communication chip 122 of the DCU 120. At this time, the B-phase port communication chip 112 of the B-phase electricity meter 110b is connected to the B-phase distribution line.
또한, C상 전력량계(110c)는 DCU(120)의 C상 상포트 통신칩(123)을 통해 전송되는 식별신호에 응답하기 위한 C상 상포트 통신칩(113)을 구비한다. 이때, C상 전력량계(110c)의 C상 상포트 통신칩(113)은 C상 배전선로에 연결된다.In addition, the C-phase power meter 110c includes a C-phase port communication chip 113 for responding to an identification signal transmitted through the C-phase port communication chip 123 of the DCU 120. At this time, the C phase port communication chip 113 of the C phase electricity meter 110c is connected to the C phase distribution line.
3상 전력량계(110d)는 DCU(120)의 A상 상포트 통신칩(111), B상 상포트 통신칩(112) 및 C상 상포트 통신칩(113) 각각을 통해 전송되는 식별신호에 응답하기 위한 3상 상포트 통신칩(114)을 구비한다. 이때, 3상 전력량계(110d)의 3상 상포트 통신칩(114)은 A, B 및 C상 배전선로에 각각 연결된다. The three-phase power meter 110d responds to the identification signal transmitted through each of the A-phase port communication chip 111, the B-phase port communication chip 112, and the C-phase port communication chip 113 of the DCU 120. A three-phase upper port communication chip 114 is provided. At this time, the three-phase port communication chip 114 of the three-phase electricity meter 110d is connected to the A, B, and C phase distribution lines, respectively.
이처럼 DCU(120) 또는 AMI 서버(130)는 전력량계(110)와 DCU(120)에 상호 대응되는 상포트 통신칩을 구비함으로써 수용가측에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인할 수 있다.As described above, the DCU 120 or the AMI server 130 includes the power meter 110 and the upper port communication chip corresponding to the DCU 120, so that the phase of the transformer 125 connected to the customer side can be identified. .
이와 같이 수용가측에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인 가능하다는 것은, 수용가측에서 배전선로의 부하에 연결되는 변압기(125)의 상이 어느 하나의 상으로 편중되는 상태를 감시하여 배전선로의 부하 불평형에 대해 시정 또는 예방 가능할 뿐만 아니라, 수용가측에 대한 전력공급의 손실을 개선하고, 전기를 몰래 훔쳐쓰는 도전(盜電)을 관리할 수 있다는 것을 의미한다.In this way, it is possible to confirm what phase of the transformer 125 is connected to the customer side, by monitoring the state in which the phase of the transformer 125 connected to the load of the distribution line on the customer side is biased to any one phase This means not only correcting or preventing load unbalance in the furnace, but also improving the loss of power supply to the consumer and managing the stealth challenge.
이 경우에, DCU(120)는 각 상별로 동시에 상정보 식별신호를 전송 가능하며, 전력량계(110)는 DCU(120)로부터 전송된 상정보 식별정보를 확인하여 응답한다.In this case, the DCU 120 may simultaneously transmit a phase information identification signal for each phase, and the electricity meter 110 checks and responds to the phase information identification information transmitted from the DCU 120.
반면에, DCU(120)는 상포트 통신칩을 이용하지 않는 경우에, 각 상으로 전달되는 신호가 모두 동일하거나, 특정 시점 마다 각기 하나의 상에 해당되는 신호만 전송한다. 전력량계(110)는 상포트 통신칩을 이용하지 않는 경우에, 전력 사용중인 상이 구분될 수 없고, 단지 통합적인 전력사용정보만을 전송할 수 있다.On the other hand, when the DCU 120 does not use the upper port communication chip, the signals transmitted to each phase are all the same, or transmit only a signal corresponding to each one of each phase at a specific time point. When the electricity meter 110 does not use the upper port communication chip, the phase in use of power cannot be distinguished, and only the integrated power usage information can be transmitted.
도 3은 본 발명의 일실시예에 따른 전력량계와 DCU에 구비된 상포트 통신칩의 세부 구성을 나타낸 도면이다.3 is a diagram illustrating a detailed configuration of an upper port communication chip provided in a power meter and a DCU according to an embodiment of the present invention.
DCU 상포트 통신칩(220)은 상정보 식별신호 발생부(221), DCU 통신부(222), 응답신호 확인부(223)를 포함할 수 있다. 아울러, 전력량계 상포트 통신칩(210)은 전력량계 통신부(211), 상정보 식별신호 확인부(212), 응답신호 발생부(213)를 포함할 수 있다.The DCU upper port communication chip 220 may include a phase information identification signal generator 221, a DCU communication unit 222, and a response signal confirmation unit 223. In addition, the electricity meter upper port communication chip 210 may include an electricity meter communication unit 211, a phase information identification signal checking unit 212, and a response signal generator 213.
DCU 상포트 통신칩(220)은 수용가측에 연결되어 있는 변압기(125)의 상이 어떤 상인지를 확인하기 위한 상정보 식별신호를 발생하여 전력량계(110)로 전송하면, 전력량계 상포트 통신칩(210)이 상정보 식별신호를 이용하여 자신에게 전송된 신호임을 확인하여 응답한다. 여기서, 전력량계 상포트 통신칩(210)은 자신이 연결된 배전선로의 상에 대응되는 상정보 식별신호에 대해서만 응답한다.When the DCU upper port communication chip 220 generates a phase information identification signal for identifying which phase of the transformer 125 is connected to the consumer side, and transmits the phase information identification signal to the electricity meter 110, the electricity meter upper port communication chip 210 Using this phase information identification signal, it confirms that it is a signal transmitted to itself and responds. Here, the electricity meter upper port communication chip 210 responds only to the phase information identification signal corresponding to the phase of the distribution line to which it is connected.
다시 말해, DCU 상포트 통신칩(220)은 상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시키고, 전력량계 상포트 통신칩(210)은 상정보 식별신호를 확인함에 따라 상정보 식별신호에 대응하는 응답신호를 발생시킨다.In other words, the DCU phase port communication chip 220 generates a phase information identification signal including phase information unique to each phase, and the electricity meter phase port communication chip 210 checks the phase information identification signal as the phase information identification signal. Generates a response signal corresponding to.
먼저, DCU 상포트 통신칩(220)의 구성은 다음과 같다.First, the configuration of the DCU upper port communication chip 220 is as follows.
상정보 식별신호 발생부(221)는 특정 상을 식별 가능한 상정보가 포함된 신호인 상정보 식별신호를 발생한다.The phase information identification signal generator 221 generates a phase information identification signal which is a signal including phase information for identifying a specific phase.
예를 들어, 상정보 식별신호 발생부(221)는 A상을 위한 상정보 식별신호를 발생하는 경우에, A상에 대한 상정보로서 '1000'이 포함된 상정보 식별신호를 발생할 수 있다. 마찬가지로, 상정보 식별신호 발생부(221)는 B상, C상 및 3상을 위한 상정보 식별신호를 발생하는 경우에도, B상에 대한 상정보로서 '0100', C상에 대한 상정보로서 '0010', 3상에 대한 상정보로서 '1110'이 각각 포함된 상정보 식별신호를 발생할 수 있다.For example, when the phase information identification signal generator 221 generates the phase information identification signal for phase A, the phase information identification signal including '1000' may be generated as phase information for phase A. Similarly, even when the phase information identification signal generator 221 generates phase information identification signals for phase B, phase C, and phase 3, phase information for phase B is '0100', phase information for phase C. A phase information identification signal including '1110' may be generated as phase information for '0010' and three phases, respectively.
DCU 통신부(222)는 상정보 식별신호 발생부(221)에 의해 발생된 상정보 식별신호를 전력량계 상포트 통신칩(210)로 송신하거나, 전력량계 상포트 통신칩(210)로부터 전송된 응답신호를 수신한다.The DCU communication unit 222 transmits the phase information identification signal generated by the phase information identification signal generator 221 to the power meter upper port communication chip 210, or transmits a response signal transmitted from the power meter upper port communication chip 210. Receive.
응답신호 확인부(223)는 전력량계 상포트 통신칩(210)로부터 전송된 응답신호를 확인하여 해당 전력량계(110)에서 전력 사용중인 상을 판별한다.The response signal checking unit 223 checks the response signal transmitted from the electricity meter upper port communication chip 210 to determine the phase of power being used by the corresponding electricity meter 110.
다음으로, 전력량계 상포트 통신칩(210)의 구성은 다음과 같다.Next, the configuration of the electricity meter upper port communication chip 210 is as follows.
전력량계 통신부(211)는 DCU 상포트 통신칩(220)로부터 전송된 상정보 식별신호를 수신하고, 응답신호 발생부(213)로부터 전송된 응답신호를 DCU 상포트 통신칩(220)로 송신한다.The electricity meter communication unit 211 receives the phase information identification signal transmitted from the DCU upper port communication chip 220, and transmits the response signal transmitted from the response signal generator 213 to the DCU upper port communication chip 220.
상정보 식별신호 확인부(212)는 전력량계 통신부(211)로부터 전달된 상정보 식별신호의 상정보를 확인하여 현재 전력 사용중인 상에 대응되는지를 확인한다. 즉, 상정보 식별신호 확인부(212)는 전력량계(110)의 전력 사용중인 상에 대응되는 경우에만 응답신호 발생부(213)에 의한 응답신호가 발생되도록 한다.The phase information identification signal checking unit 212 checks phase information of the phase information identification signal transmitted from the electricity meter communication unit 211 to confirm whether the phase corresponds to a phase currently in use. That is, the phase information identification signal checking unit 212 generates a response signal generated by the response signal generator 213 only when the power meter 110 corresponds to a phase in use.
응답신호 발생부(213)는 상정보 식별신호 확인부(212)의 확인결과에 따라 응답신호를 발생하여 전력량계 통신부(211)를 통해 응답신호를 DCU 상포트 통신칩(220)으로 전송하도록 한다. 이때, 응답신호 발생부(213)는 전송받은 상정보 식별신호(또는, 자신이 현재 사용중인 상정보)에 자신의 식별정보 및 전력사용량 정보를 포함시킨 응답신호를 DCU 상포트 통신칩(220)으로 전송한다. The response signal generator 213 generates a response signal according to the result of the identification of the phase information identification signal checker 212 and transmits the response signal to the DCU upper port communication chip 220 through the electricity meter communication unit 211. At this time, the response signal generator 213 transmits a response signal including its identification information and power consumption information to the received phase information identification signal (or phase information currently being used) by the DCU upper port communication chip 220. To send.
도 4 및 도 5는 본 발명의 일실시예에 따른 배전선로의 상 판별 및 도전 관리 방법에 대한 도면이다.4 and 5 are diagrams illustrating a phase determination and a conductive management method of a distribution line according to an embodiment of the present invention.
DCU(120)는 실시간으로 각 상에 상정보가 결합되어 있는 상정보 식별신호를 전력량계(110)로 전송한다(S301).The DCU 120 transmits a phase information identification signal having phase information combined to each phase to the power meter 110 in real time (S301).
이후, 전력량계(110)는 상정보 식별신호를 확인하여 응답신호를 발생한 후 DCU(120)로 전송한다(S302).Thereafter, the electricity meter 110 checks the phase information identification signal, generates a response signal, and transmits the generated response signal to the DCU 120 (S302).
이때, 전력량계(110)는 단상 전력량계인 경우, DCU(120)로부터 전송받은 상정보 식별신호에 해당 전력량계의 식별정보와 전력사용량 정보가 포함된 응답신호를 DCU(120)로 전송한다. 여기서, 응답신호를 발생시킬 때 상정보 식별신호를 그대로 이용하는 것은 3개의 상정보 중 어느 하나의 상정보를 결합하므로, 전력량계(110)가 현재 사용중인 상정보를 나타내기 때문이다.In this case, when the electricity meter 110 is a single-phase electricity meter, the power meter 110 transmits a response signal including identification information of the corresponding electricity meter and power consumption information to the DCU 120 in the phase information identification signal received from the DCU 120. Here, the phase information identification signal is used as it is when generating a response signal because the phase information of any one of the three phase information is combined, so that the electricity meter 110 indicates phase information currently being used.
또한, 전력량계(110)는 3상 전력량계인 경우, 현재 자신이 사용중인 상정보에 자신의 식별정보와 전력사용량 정보가 포함된 응답신호를 DCU(120)로 전송한다.In addition, when the electricity meter 110 is a three-phase electricity meter, the DCU 120 transmits a response signal including its identification information and power consumption information to the phase information currently being used.
이후, DCU(120)는 전력량계(110)로부터 전송된 응답신호를 이용하여 실시간으로 배전선로에서 현재 전력 사용중인 상을 판별한다(S303). 이때, DCU(120)는 각 상의 전력부하 정보를 실시간으로 확인하여 AMI 서버(130)로 전송한다(S304). 이를 통해, AMI 서버(130)는 배전선로의 부하 불평형 상태를 확인할 수 있다(S305).Thereafter, the DCU 120 uses the response signal transmitted from the electricity meter 110 to determine a phase currently being used in the power distribution line (S303). At this time, the DCU 120 checks the power load information of each phase in real time and transmits it to the AMI server 130 (S304). Through this, the AMI server 130 may check the load unbalance state of the distribution line (S305).
한편, AMI 서버(130)는 S303 단계 이후에 도전 관리를 수행할 수 있다.Meanwhile, the AMI server 130 may perform challenge management after step S303.
AMI 서버(130)는 DCU(120)로부터 전송받은 각 상별로 해당하는 고객들의 전력사용량의 합(즉, 표시_전력 총사용량)을 계산한다(S311). The AMI server 130 calculates the sum (ie, display_power total consumption) of the power consumption of the corresponding customers for each phase transmitted from the DCU 120 (S311).
그리고 AMI 서버(130)는 DCU(120)로부터 실시간 전송받은 각 상별로 해당하는 고객들의 실제 전력부하량의 합(즉, 실제_전력 총사용량)을 확인한다(S312).In addition, the AMI server 130 checks the sum of the actual power loads of the corresponding customers for each phase received from the DCU 120 in real time (that is, the actual power consumption) (S312).
AMI 서버(130)는 표시_전력 총사용량과 실제_전력 총사용량을 비교하여 기계적 손실 이상의 차이(즉, 도전)가 발생하는지를 확인한다(S313). 이때, AMI 서버(130)는 실제_전력 총사용량과 표시_전력 총사용량의 차이값에서 자체 선로 손실을 제외한다.The AMI server 130 compares the total display power consumption and the actual power consumption to determine whether there is a difference (ie, a challenge) above the mechanical loss (S313). In this case, the AMI server 130 excludes its own line loss from the difference between the actual power consumption and the display power consumption.
특히, AMI 서버(130)는 도전이 발생한 것으로 판단되는 상의 배전선로만 점검할 수 있다. 이는 기존에 비해 1/3 수준으로 업무량이 줄어드는 효과가 있다. 또한, AMI 서버(130)는 도전이 발생한 것으로 판단되는 상의 고객중 고객별 사용량 패턴, 과거 도전이력, DCU(120)와 전력량계(110) 간 주고받는 데이터 신호의 크기 등을 종합적으로 고려하여 도전 고객 파악 정확도를 확보할 수 있다.In particular, the AMI server 130 may check only the distribution line of the phase that is determined to have a challenge. This has the effect of reducing the amount of work to 1/3 of the existing level. In addition, the AMI server 130 challenges the customer by considering the usage pattern for each customer, the past challenge history, and the size of the data signal exchanged between the DCU 120 and the electricity meter 110 among the customers who are determined to have the challenge. Accuracy of grasping can be ensured.
일부 실시 예에 의한 방법은 다양한 컴퓨터 수단을 통하여 수행될 수 있는 프로그램 명령 형태로 구현되어 컴퓨터 판독 가능 매체에 기록될 수 있다. 상기 컴퓨터 판독 가능 매체는 프로그램 명령, 데이터 파일, 데이터 구조 등을 단독으로 또는 조합하여 포함할 수 있다. 상기 매체에 기록되는 프로그램 명령은 본 발명을 위하여 특별히 설계되고 구성된 것들이거나 컴퓨터 소프트웨어 당업자에게 공지되어 사용 가능한 것일 수도 있다. 컴퓨터 판독 가능 기록 매체의 예에는 하드 디스크, 플로피 디스크 및 자기 테이프와 같은 자기 매체(magnetic media), CDROM, DVD와 같은 광기록 매체(optical media), 플롭티컬 디스크(floptical disk)와 같은 자기-광 매체(magneto-optical media), 및 롬(ROM), 램(RAM), 플래시 메모리 등과 같은 프로그램 명령을 저장하고 수행하도록 특별히 구성된 하드웨어 장치가 포함된다. 프로그램 명령의 예에는 컴파일러에 의해 만들어지는 것과 같은 기계어 코드뿐만 아니라 인터프리터 등을 사용해서 컴퓨터에 의해서 실행될 수 있는 고급 언어 코드를 포함한다.The method according to some embodiments may be embodied in the form of program instructions that may be executed by various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CDROMs, DVDs, and magnetic-optical such as floppy disks. Media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
비록 상기 설명이 다양한 실시예들에 적용되는 본 발명의 신규한 특징들에 초점을 맞추어 설명되었지만, 본 기술 분야에 숙달된 기술을 가진 사람은 본 발명의 범위를 벗어나지 않으면서도 상기 설명된 장치 및 방법의 형태 및 세부 사항에서 다양한 삭제, 대체, 및 변경이 가능함을 이해할 것이다. 따라서, 본 발명의 범위는 상기 설명에서보다는 첨부된 특허청구범위에 의해 정의된다. 특허청구범위의 균등 범위 안의 모든 변형은 본 발명의 범위에 포섭된다.Although the foregoing description has been focused on the novel features of the invention as applied to various embodiments, those skilled in the art will appreciate that the apparatus and method described above without departing from the scope of the invention. It will be understood that various deletions, substitutions, and changes in form and detail of the invention are possible. Accordingly, the scope of the invention is defined by the appended claims rather than in the foregoing description. All modifications within the scope of equivalents of the claims are to be embraced within the scope of the present invention.

Claims (12)

  1. 상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시키는 DCU 상포트 통신칩이 구비되는 DCU(Data Concentration Unit); 및A DCU (Data Concentration Unit) having a DCU top port communication chip for generating a phase information identification signal including phase information unique to each phase; And
    상기 상정보 식별신호를 확인함에 따라 상기 상정보 식별신호에 대응하는 응답신호를 발생시키는 전력량계 상포트 통신칩이 구비되는 전력량계;를 포함하고,And a power meter provided with a power meter upper port communication chip configured to generate a response signal corresponding to the phase information identification signal according to the phase information identification signal.
    상기 DCU는 상기 응답신호를 이용하여 배전선로에서 현재 전력 사용중인 상을 판별하는 배전선로의 상 판별이 가능한 지능형전력량계시스템.The DCU is an intelligent power meter system capable of determining the phase of the distribution line for determining the phase currently being used in the power distribution line using the response signal.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 DCU에 의해 확인된 각 상의 전력부하 정보를 전달받아 배전선로의 부하 불평형 상태를 확인하는 AMI 서버;An AMI server that receives power load information of each phase identified by the DCU and checks an unbalanced state of a distribution line;
    를 더 포함하는 배전선로의 상 판별이 가능한 지능형전력량계시스템.Intelligent electricity meter system capable of phase determination of a distribution line further comprising.
  3. 제 1 항에 있어서,The method of claim 1,
    상기 DCU로부터 전송받은 각 상별로 해당하는 고객들에 대해, 전력사용량의 합인 '표시_전력 총사용량'과 실제 전력부하량의 합인 '실제_전력 총사용량'을 계산하여 비교함으로써 도전 발생을 확인하는 AMI 서버;AMI server that confirms the challenge by comparing and calculating the total 'power usage' and the 'power usage' which is the sum of the power consumption and the 'power usage total' which is the sum of the power consumption for the corresponding customers for each phase transmitted from the DCU. ;
    를 더 포함하는 배전선로의 상 판별이 가능한 지능형전력량계시스템.Intelligent electricity meter system capable of phase determination of a distribution line further comprising.
  4. 제 1 항에 있어서,The method of claim 1,
    상기 DCU 상포트 통신칩은,The DCU upper port communication chip,
    상기 상정보 식별신호를 발생하기 위한 상정보 식별신호 발생부;A phase information identification signal generator for generating the phase information identification signal;
    상기 전력량계 상포트 통신칩으로부터 전송된 상기 응답신호를 확인하여 상기 전력량계에서 전력 사용중인 상을 판별하기 위한 응답신호 확인부; 및A response signal checking unit for checking the response signal transmitted from the power meter phase port communication chip to determine a phase in use by the power meter; And
    상기 상정보 식별신호를 상기 전력량계 상포트 통신칩으로 송신하고, 상기 응답신호를 상기 전력량계 상포트 통신칩으로부터 수신하기 위한 DCU 통신부;A DCU communication unit for transmitting the phase information identification signal to the electricity meter upper port communication chip and receiving the response signal from the electricity meter upper port communication chip;
    를 포함하는 배전선로의 상 판별이 가능한 지능형전력량계시스템.Intelligent electricity meter system capable of phase identification of a distribution line comprising a.
  5. 제 1 항에 있어서,The method of claim 1,
    상기 전력량계 상포트 통신칩은,The meter meter communication port,
    상기 상정보 식별신호의 상정보를 확인하여 현재 전력 사용중인 상에 대응되는 상정보가 해당되는지를 확인하기 위한 상정보 식별신호 확인부;A phase information identification signal checking unit for checking phase information of the phase information identification signal to determine whether phase information corresponding to a phase currently being used is applicable;
    상기 상정보 식별신호 확인부의 확인 결과에 따라, 상기 응답신호를 발생시키기 위한 응답신호 발생부; 및A response signal generator for generating the response signal according to a check result of the phase information identification signal checking unit; And
    상기 상정보 식별신호를 상기 전력량계 상포트 통신칩으로부터 수신하고, 상기 응답신호를 상기 전력량계 상포트 통신칩로 송신하기 위한 전력량계 통신부;An electricity meter communication unit for receiving the phase information identification signal from the electricity meter upper port communication chip and transmitting the response signal to the electricity meter upper port communication chip;
    를 포함하는 배전선로의 상 판별이 가능한 지능형전력량계시스템.Intelligent electricity meter system capable of phase identification of a distribution line comprising a.
  6. 제 5 항에 있어서,The method of claim 5, wherein
    상기 응답신호 발생부는,The response signal generator,
    단상 전력량계의 경우에, 상기 상정보 식별신호에 해당 전력량계의 식별정보와 전력사용 정보가 포함된 상기 응답신호를 발생시키는 배전선로의 상 판별이 가능한 지능형전력량계시스템.In the case of a single-phase electricity meter, the intelligent electricity meter system capable of phase identification of a distribution line for generating the response signal containing the identification information and power usage information of the electricity meter in the phase information identification signal.
  7. 제 5 항에 있어서,The method of claim 5, wherein
    상기 응답신호 발생부는,The response signal generator,
    3상 전력량계의 경우에, 현재 전력 사용중인 상정보에 해당 전력량계의 식별정보와 전력사용량 정보가 포함된 상기 응답신호를 발생시키는 배전선로의 상 판별이 가능한 지능형전력량계시스템.In the case of a three-phase electricity meter, the intelligent electricity meter system capable of phase identification of a distribution line for generating the response signal containing the identification information and power consumption information of the corresponding electricity meter in the phase information currently being used.
  8. DCU가 상별로 고유한 상정보가 포함된 상정보 식별신호를 발생시켜 전력량계로 전송하는 단계;Generating, by the DCU, a phase information identification signal including phase information unique to each phase and transmitting the phase information identification signal to a power meter;
    상기 전력량계가 상기 상정보 식별신호를 확인함에 따라 상기 상정보 식별신호에 대응하는 응답신호를 발생시켜 상기 DCU로 전송하는 단계; 및Generating a response signal corresponding to the phase information identification signal to the DCU as the electricity meter checks the phase information identification signal; And
    상기 DCU가 상기 응답신호를 이용하여 배전선로에서 현재 전력 사용중인 상을 판별하는 단계;Determining, by the DCU, a phase currently using power in a distribution line using the response signal;
    를 포함하는 배전선로의 상 판별 및 도전 관리 방법.Phase determination and challenge management method of the distribution line comprising a.
  9. 제 8 항에 있어서The method of claim 8
    AMI 서버가 상기 DCU에 의해 확인된 각 상의 전력부하 정보를 전달받아 배전선로의 부하 불평형 상태를 확인하는 단계;AMI server receiving power load information of each phase identified by the DCU to check the load unbalance state of the distribution line;
    를 더 포함하는 배전선로의 상 판별 및 도전 관리 방법.Phase determination and challenge management method of the distribution line further comprising.
  10. 제 8 항에 있어서,The method of claim 8,
    AMI 서버가 상기 DCU로부터 전송받은 각 상별로 해당하는 고객들의 전력 사용량의 합인 표시_전력 총사용량을 계산하는 단계;Calculating, by the AMI server, the display_power total usage, which is the sum of the power usage of the corresponding customers for each phase received from the DCU;
    상기 AMI 서버가 각 상별로 해당하는 고객들의 실제 전력부하량의 합인 실제_전력 총사용량을 확인하는 단계; 및Confirming, by the AMI server, actual total power consumption, which is the sum of actual power loads of customers corresponding to each phase; And
    상기 AMI 서버가 상기 표시_전력 총사용량과 상기 실제_전력 총사용량을 비교하여 도전이 발생하는지를 확인하는 단계;Checking, by the AMI server, whether a challenge occurs by comparing the total display power consumption with the actual power consumption;
    를 더 포함하는 배전선로의 상 판별 및 도전 관리 방법.Phase determination and challenge management method of the distribution line further comprising.
  11. 제 8 항에 있어서The method of claim 8
    상기 응답신호는, 단상 전력량계의 경우에, 상기 상정보 식별신호에 해당 전력량계의 식별정보와 전력사용 정보가 포함되는 배전선로의 상 판별 및 도전 관리 방법.The response signal, in the case of a single-phase electricity meter, the phase information identification and conduction management method of the power distribution line that includes the identification information and power usage information of the electricity meter in the phase information identification signal.
  12. 제 8 항에 있어서,The method of claim 8,
    상기 응답신호는, 3상 전력량계의 경우에, 현재 전력 사용중인 상정보에 해당 전력량계의 식별정보와 전력사용량 정보가 포함되는 배전선로의 상 판별 및 도전 관리 방법.The response signal, in the case of a three-phase electricity meter, phase identification and conduction management method of the power distribution line that includes identification information and power consumption information of the electricity meter in the phase information currently being used.
PCT/KR2018/001235 2017-06-12 2018-01-29 Advanced metering infrastructure capable of distinguishing between phases of power line, and method for distinguishing between phases of power line and controlling stealing power by using same WO2018230804A1 (en)

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