KR100961542B1 - Power quality device - Google Patents

Power quality device Download PDF

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KR100961542B1
KR100961542B1 KR1020090105275A KR20090105275A KR100961542B1 KR 100961542 B1 KR100961542 B1 KR 100961542B1 KR 1020090105275 A KR1020090105275 A KR 1020090105275A KR 20090105275 A KR20090105275 A KR 20090105275A KR 100961542 B1 KR100961542 B1 KR 100961542B1
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control
power
contact
signal
unit
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양필석
김상현
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(주) 동보파워텍
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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
    • H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/46—Construction of the actuator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/30—Dynamo-electric motor meters
    • G01R11/32—Watt-hour meters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
    • G05B23/0267—Fault communication, e.g. human machine interface [HMI]
    • G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Emergency Management (AREA)
  • Economics (AREA)
  • General Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
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  • Tourism & Hospitality (AREA)
  • Marketing (AREA)
  • General Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Primary Health Care (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Human Computer Interaction (AREA)
  • Automation & Control Theory (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

PURPOSE: A power quality terminal device is provided to reduce an electric charge by controlling a load based on the prediction of the maximum demand of the electric charge. CONSTITUTION: An information input/output part(110) receives all kinds of control information from a user. A contacting part(120) executes a communications control, a power control, maximum demand power management, a breaker control, and an automatic extinguishing device control. A fire detecting part(130) generates a fire sensing signal by sensing heat and smoke. A control part(140) controls the information input/output part, the contacting part, and the fire detecting part. When the anticipated maximum demand of electric power exceeds a target power, a load control is executed by a preset sequence.

Description

전력품질단말장치{POWER QUALITY DEVICE}Power Quality Terminal Device {POWER QUALITY DEVICE}

본 발명은 최대수요전력관리에 따른 최대수요전력 예측 및 부하제어, 차단기 투입, 차단동작 및 차단시 동작시간 측정을 통한 이상진단 기능, 열 및 연기 감지를 통한 화재감지를 수행하며, 소공간 자동소화장치를 이용한 화재 진압기능을 부가된 전력품질장치에 관한 것으로서, 더욱 상세하게는 최대수요전력 초과를 예측하여 부하제어를 실시함으로써 전기요금의 절감을 기하고, 차단기 동작시간에 따른 이상유무를 판단하여 사고를 방지하며, 전력기기들의 노후화 및 이상으로 인한 화재감지를 실시하여 화재발생시 신속히 대응함으로써 사용자의 재산과 안전을 보호할 수 있는 전력품질단말장치에 관한 것이다.The present invention is the maximum demand power prediction according to the maximum demand power management and load control, breaker input, interruption operation and abnormality detection function by measuring the operating time at the time of blocking, fire detection through heat and smoke detection, small space automatic fire extinguishing The present invention relates to a power quality device having a fire suppression function using a device. More specifically, a load control is performed in anticipation of exceeding a maximum demand power to reduce electric charges and determine whether there is an abnormality according to the breaker operation time. The present invention relates to a power quality terminal device that prevents accidents and detects fires due to aging and abnormality of power devices and responds quickly to fires, thereby protecting user property and safety.

일반적으로, 한국전력공사, 한국전기안전공사와 같이 전기에너지를 관리, 감독하는 기관에서는 양질의 전력을 전력수용가에 안전하게 공급하고, 에너지 절약, 전력사고 예방 및 대처방안 등에 대하여 정책을 수립하고 실효성을 거두기 위하여 수요관리, 안전점검을 실시하고 있다.In general, organizations that manage and supervise electrical energy, such as KEPCO and Korea Electric Safety Corporation, safely supply high-quality electric power to electric power consumers, establish policies on energy conservation, prevent accidents and countermeasures, etc. Demand management and safety checks are conducted to reap.

또한, 공장이나 빌딩과 같은 전력수용가에서도 전력사용 증가에 따른 전기요금 절감을 위하여 고효율 에너지기자재, 최대수요전력관리장치를 사용하고 있고, 전력감시 및 전력품질 개선을 위하여 전력감시 시스템, 고조파 저감장치를 도입하고 있으며, 사고방지 및 화재진압을 위하여 전력진단장치 및 자동소화장치를 설치하여 위험에 대비하고 있다.In addition, power consumers such as factories and buildings are using high-efficiency energy equipment and maximum demand power management devices to reduce electricity bills due to increased power usage.In addition, power monitoring systems and harmonic reduction devices are used to improve power monitoring and power quality. In order to prevent accidents and extinguish fires, power diagnosis devices and automatic fire extinguishing devices are installed to prepare for danger.

그러나, 상기와 같은 시스템을 구축하기 위해서는 수배전반의 사이즈가 증가하여 수용가의 설치공간의 확충이 필요하고, 다수의 디지털 장치들의 사용에 따른 사용자의 업무증가, 특히 고가의 디지털 장치 사용에 따른 비용증가로 인해 일부의 장치만 설치하여 사용하고 있는데 따른 기능상의 문제점이 있다.However, in order to construct such a system, the size of the switchboard is increased and the installation space of the customer is required to increase, and as the user's work increases due to the use of a plurality of digital devices, in particular, the cost increases due to the use of expensive digital devices. Due to the installation and use of only some devices there is a functional problem.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 본 발명의 제 1 목적은, 최대수요전력관리장치를 제거함으로써 비용을 절감하고, 하이브리드 전력품질단말장치에 최대수요전력관리 기능을 부가하여 피크방지를 위한 부하제어를 실시함으로써 전기요금 절감을 기할 수 있도록 함에 있다. The present invention has been made in view of the above problems, and the first object of the present invention is to reduce the cost by eliminating the maximum demand power management device, and to add a peak demand power management function to the hybrid power quality terminal device, thereby providing a peak. It is possible to reduce the electricity bill by implementing load control for prevention.

또한 본 발명의 제 2 목적은, 디지털 전력감시장치와 차단기 동작시간 진단장치를 제거함으로써 비용을 절감하고, 전력품질단말장치에 차단기 투입, 차단기능 및 차단기 동작시간 진단기능을 부가함으로써 차단기 제어를 편리하게 수행하고, 차단기의 노후화 및 이상유무를 진단하여 수용가 설비를 안전하게 보호할 수 있도록 함에 있다.In addition, the second object of the present invention is to reduce the cost by eliminating the digital power monitoring device and the breaker operating time diagnosis device, and to facilitate the breaker control by adding a breaker input, a breaker function and a breaker operating time diagnosis function to the power quality terminal device. It is to ensure the protection of the customer equipment by diagnosing the aging and abnormality of the breaker.

그리고 본 발명의 제 3 목적은, 화재감지 콘트롤러를 제거함으로써 비용을 절감하고, 전력품질단말장치에 화재감지용 센서 및 소공간 자동소화장치와 연동할 수 있는 화재감지 콘트롤 기능을 부가하여 수배전반 내부 전력설비의 이상으로 발생할 때 작동하는 열 및 연기감지기와의 연동기능과 화재발생시 소공간 자동소화장치를 동작시켜 신속히 진압하여 수용가의 인적, 물적 재산을 안전하게 보호하도록 함에 있다.The third object of the present invention is to reduce the cost by eliminating the fire detection controller, and to add power to the power distribution panel by adding a fire detection control function that can be interlocked with a fire detection sensor and a small space automatic fire extinguishing device. It works to interlock with heat and smoke detectors that operate when there is an abnormality of equipment and to operate the small space automatic fire extinguishing device in case of fire to quickly extinguish and protect the human and physical property of customers.

이러한 기술적 과제를 달성하기 위한 본 발명은 전력품질단말장치에 관한 것으로서, 사용자의 각종 제어정보를 입력받고, 그에 따른 정보를 출력하는 정보 입 출력부; 최대수요전력관리, 차단기 개페동작 제어 및 동작시간 이상진단, 자동소화장치 제어, 통신제어, 전원제어를 위한 접점부; 열 및 연기를 감지하여 화재감지신호를 생성하는 화재 감지부; 및 상기 정보 입출력부, 접점부 및 화재 감지부를 제어하는 제어부; 를 포함하되, 상기 제어부는, 상기 접점부를 통해 유효전력량 신호 및 수요시한 종료 신호를 입력받고, 입력된 신호를 바탕으로 최대수요전력을 계산하여, 예측전력이 목표전력을 초과할 경우 기 설정된 시퀀스(Sequence)에 의해서 부하제어를 실시하는 것을 특징으로 한다. The present invention for achieving the technical problem, relates to a power quality terminal device, an information input and output unit for receiving a variety of control information of the user, and outputs the information according to the; Contact point for maximum demand power management, breaker opening operation control and abnormal operation time diagnosis, automatic fire extinguishing device control, communication control, power control; Fire detection unit for generating a fire detection signal by detecting heat and smoke; And a control unit controlling the information input / output unit, the contact unit, and the fire detection unit. The control unit may receive an effective power amount signal and a demand time end signal through the contact unit, calculate a maximum demand power based on the input signal, and set a preset sequence when the predicted power exceeds a target power. The load control is performed by (Sequence).

상기와 같은 본 발명에 따르면, 전력품질단말장치에 최대수요전력관리기능, 차단기 개폐제어 및 동작시간 이상진단 기능, 자동소화시스템 제어기능을 통합함으로써 수배전반에 설치되는 최대수요전력관리장치, 화재감지 콘트롤러, 디지털 전력감시장치, 차단기 동작시간 진단장치를 제거하여 비용을 줄일 수 있으며, 한 대의 기기로 통합관리함으로써 사용자가 손쉽게 유지보수 및 관리업무를 수행할 수 있는 효과도 있다.According to the present invention as described above, the maximum demand power management function, fire detection controller installed in the switchgear by integrating the maximum demand power management function, breaker opening and closing control and operation time abnormality diagnosis function, automatic fire extinguishing system control function to the power quality terminal device In addition, the cost can be reduced by eliminating the digital power monitoring device and the breaker operation time diagnosis device. The integrated management with one device also enables the user to easily perform maintenance and management work.

본 발명의 구체적 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. In the meantime, when it is determined that the detailed description of the known functions and configurations related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

이하, 첨부된 도면을 참조하여 본 발명을 상세하게 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

도 1 은 종래 전력수용가에 설치된 수배전반에 관한 외관도로서, 도시된 바와 같이 수배전반은 일반적으로 전력계통의 통전 순서 및 전압종별에 따라 크게 고압 배전반(10)과 저압 배전반(20)으로 구분된다.FIG. 1 is an external view of a switchgear installed in a conventional power receiver. As shown in FIG. 1, a switchgear is generally divided into a high voltage switchgear 10 and a low voltage switchgear 20 according to a power supply sequence and voltage type of a power system.

이때, 고압 배전반(10)에는 수용가의 전력사용량을 측정하여 전기요금을 부과하기 위하여 한전에서 설치하는 전자식 전력량계(11), 전자식 전력량계(11)로부터 신호선(WP : 유효전력량, EOI : 수요시한 종료)을 입력받아 최대수요전력을 계산하여 예측전력이 목표전력을 초과하지 않도록 부하제어를 실시하는 최대수요전력관리장치(12)가 설치되고, 저압 배전반(20)에는 열 감지기 및 연기 감지기로부터 접점신호를 입력받아 경보발령 및 화재발생시 소공간 자동소화장치를 동작시키는 화재감지 콘트롤러(21), 차단기의 개폐동작 제어 및 전압, 전류 계측기능을 수행하는 디지털 전력감시장치(22), 전압, 전류 계측기능, 고조파 측정 및 분석기능을 수행하는 전력품질단말장치(23) 및 차단기의 차단동작시간을 측정하여 이상유무를 진단하는 차단기 동작시간 진단장치(24)로 구성되어진다.At this time, in the high-voltage switchboard 10, the signal line (WP: effective power amount, EOI: demand time end from the electronic electricity meter 11, the electronic electricity meter 11 installed in the KEPCO to measure the power consumption of the consumer to impose an electric charge) The maximum demand power management device 12 is installed to calculate the maximum demand power and control the load so that the predicted power does not exceed the target power, and the low voltage switchboard 20 has a contact signal from a heat detector and a smoke detector. Fire detection controller 21 to operate the small space automatic fire extinguishing device in response to the alarm issuance and fire occurrence, digital power monitoring device 22 to control the opening and closing operation of the circuit breaker and voltage, current measurement function, voltage, current measurement function Diagnosis of breaker operation time by measuring the breaking operation time of power quality terminal device 23 and breaker to perform harmonic measurement and analysis function The device 24 is comprised.

도 2 는 본 발명에 따른 전력품질단말장치(100)가 설치된 수배전반의 외관도로서, 상기 도 1 에 도시된 최대수요전력관리장치, 화재감지 콘트롤러, 디지털 전력감시장치, 전력품질장치, 차단기 및 동작시간 진단장치의 기능을 통합하여 전력품질단말장치(100) 한 대로 모든 기능을 수행한다.2 is an external view of a switchgear having a power quality terminal apparatus 100 according to the present invention, the maximum demand power management device, fire detection controller, digital power monitoring device, power quality device, circuit breaker and operation shown in FIG. Integrate the function of the time diagnostics device to perform all functions as one power quality terminal device (100).

도 3 은 본 발명에 따른 전력품질단말장치(100)에 관한 전체 구성도로서, 도시된 바와 같이 사용자의 각종 제어정보를 입력받고, 그에 따른 정보를 출력하는 정보 입출력부(110), 최대수요전력관리, 차단기 개페동작 제어 및 동작시간 이상진단, 자동소화장치 제어, 통신제어, 전원제어 등을 위한 각종 접점부(120), 열 및 연기를 감지하여, 화재감지신호를 생성하는 화재 감지부(130), 및 상기 정보 입출력부(110), 접점부(120) 및 화재 감지부(130)를 제어하는 제어부(140)를 포함한다. 3 is an overall configuration diagram of the power quality terminal device 100 according to the present invention. As shown in FIG. Management, breaker opening operation control and operation time abnormality diagnosis, automatic fire extinguishing device control, communication control, power control, etc., various contact unit 120, fire detection unit 130 to detect the heat and smoke, generating a fire detection signal And a controller 140 that controls the information input / output unit 110, the contact unit 120, and the fire detection unit 130.

도 4 는 본 발명에 따른 전력품질단말장치(100)의 전면 및 후면이 보이는 외관도로서, 도시된 바와 같이 정보 입출력부(110)는 전력품질단말장치 전면에 구성되어, 현장근무자가 현장에서 전력데이터 및 고조파 파형을 확인할 수 있도록 디스플레이 해주는 그래픽 LCD(111), 사용자 메뉴에서 상, 하, 좌, 우로 이동하여 선택하기 위한 방향키(112), 차단기의 투입(CLOSE) 및 차단(OPEN)을 실행하기 위한 제어키(113), 사용자 메뉴를 선택할 수 있도록 단축기능을 가진 기능키(114) 및 사용자 메뉴의 선택을 확인하기 위한 LED(115)를 포함한다. 4 is an external view showing the front and rear of the power quality terminal device 100 according to the present invention, as shown, the information input and output unit 110 is configured on the front of the power quality terminal device, the field workers in the field power Graphic LCD 111 to display data and harmonic waveforms to check, direction keys 112 to move up, down, left and right in the user menu for selection, CLOSE and OPEN of the breaker Control key 113, a function key 114 having a shortcut function to select a user menu, and an LED 115 for confirming selection of the user menu.

접점부(120)는 전력품질단말장치 후면에 구비되어, 직접부하제어를 수행할 때 부하를 제어하기 위하여 접점신호를 출력해주는 T2 단자대(121), 차단기의 투입 및 차단을 위한 제어출력접점, 경보 출력접점, 소공간 자동소화장치 실행용 출력접점, 열 감지기 및 연기 감지기의 신호입력접점, 차단기 동작상태 신호입력접점 등을 출력해주는 T3 단자대(122), 외부 서버 또는 관리자 컴퓨터(30)와 Ethernet(TCP/IP) 통신을 위한 COM1 포트(123) 및 RS485 통신을 위한 COM2 포트(124), 전자식 전력량계로부터 신호선을 제공받기 위한 WHM 단자대(125), 제어전원(AC220V) 공급을 위한 PWR 단자대(126), 수배전반에 공급되는 3상 4선식의 전압 및 전류를 입력받기 위한 T1 단자대(127)를 포함한다.The contact unit 120 is provided at the rear of the power quality terminal device, and the T2 terminal block 121 outputs a contact signal to control the load when performing direct load control, the control output contact for the input and interruption of the breaker, and the alarm. T3 terminal block 122 for outputting output contact point, output contact point for small space automatic fire extinguishing device, signal input contact point of heat detector and smoke detector, breaker operation status signal input contact point, external server or administrator computer 30 and Ethernet ( COM1 port 123 for TCP / IP communication and COM2 port 124 for RS485 communication, WHM terminal block 125 for receiving signal line from electronic electricity meter, PWR terminal block 126 for supplying control power (AC220V) And a T1 terminal block 127 for receiving a three-phase four-wire voltage and current supplied to the switchgear.

화재 감지부(130)는 상기 도 3 에 도시된 바와 같이 열을 감지하는 열 감지기(131), 연기를 감지하는 연기 감지기(132) 및 열과 연기 감지에 따른 화재감지신호를 생성하는 화재감지신호 생성기(133)를 포함한다. The fire detector 130 includes a heat detector 131 for detecting heat, a smoke detector 132 for detecting smoke, and a fire detection signal generator for generating a fire detection signal according to heat and smoke detection as shown in FIG. 3. 133.

한편, 본 발명에 따른 전력품질단말장치(100)에 부가된 최대수요전력관리 기능, 차단기 개폐동작 제어 및 동작시간 측정 진단기능, 열 및 연기 감지를 통한 화재감지 및 화재 진압 등의 기능에 관하여 살피면 다음과 같다. On the other hand, the maximum demand power management function added to the power quality terminal device 100 according to the present invention, the circuit breaker opening and closing operation control and operation time measurement diagnostics function, such as fire detection and fire suppression through heat and smoke detection As follows.

전력품질단말장치(100)는 전자식 전력량계로부터 공급되는 신호선을 WHM 단자대(125)를 통하여 입력받게 되며, 유효전력량은 WHM 단자대(125)의 WP 단자, 수요시한 종료는 EOI 단자를 통하여 입력된다. The power quality terminal device 100 receives a signal line supplied from an electronic wattmeter through the WHM terminal block 125, and the effective power amount is input through the WP terminal of the WHM terminal block 125, and the demand time end is input through the EOI terminal.

제어부(140)는 유효전력량 신호 및 수요시한 종료 신호를 바탕으로 최대수요전력을 계산한다. 이때, 예측전력이 목표전력을 초과할 경우, 기 설정된 시퀀스(Sequence)에 의해서 부하제어를 실시하게 된다. T2 단자대(121)에는 부하제어를 실시하기 위한 DO1∼DO5까지 5개의 C접점이 구비되어 있다. 도 5 를 참조하여 DO1(a)의 동작을 설명하도록 하며, 추가적인 DO2 내지 DO5의 설명은 생략하기로 한다.The controller 140 calculates the maximum demand power based on the effective power amount signal and the demand time end signal. At this time, when the predicted power exceeds the target power, the load control is performed by a preset sequence. The T2 terminal block 121 is provided with five C contacts from DO1 to DO5 for performing load control. The operation of DO1 (a) will be described with reference to FIG. 5, and further description of DO2 to DO5 will be omitted.

도 5 는 본 발명에 따른 전력품질단말장치(100)의 부하제어 동작원리를 보이기 위한 세부 결선도이다. 5 is a detailed connection diagram for showing a load control operation principle of the power quality terminal device 100 according to the present invention.

먼저, 수용가의 정상운전시에 AC220V가 공급되어 ON 램프(g)가 점등되어지면 서 수용가 부하에 전원공급이 이루어진다. First, AC220V is supplied in the normal operation of the customer, and the ON lamp (g) is turned on while power is supplied to the customer load.

제어부(140)가 부하제어 실행을 위하여 SW-1 스위치(b)를 조작시킨 후 예측전력이 목표전력을 초과하여 DO1(a)이 동작하게 되면 MC1X 보조릴레이(c)에 전원이 공급되어 MC1X 보조접점(d)이 동작된다. 이후, MC1X 보조접점(d)의 동작으로 MC1 마그네트 스위치(e)에 전원이 공급되어 MC1 보조접점(f)이 동작을 하게 되어 OFF 램프(h)가 점등되고 ON 램프(g)가 소등되어지면서 부하제어가 이루어진다. When the control unit 140 operates the SW-1 switch (b) to execute the load control and the DO1 (a) is operated because the predicted power exceeds the target power, the MC1X auxiliary relay (c) is supplied with power to assist the MC1X. The contact d is operated. Subsequently, power is supplied to the MC1 magnet switch (e) by the operation of the MC1X auxiliary contact (d) to operate the MC1 auxiliary contact (f) so that the OFF lamp (h) is turned on and the ON lamp (g) is turned off. Load control is made.

다음으로, 차단기(40)의 개폐동작 제어와 동작시간 측정방법을 도 6 을 참조하여 살피면 다음과 같다. Next, the opening and closing operation control and operation time measuring method of the circuit breaker 40 will be described with reference to FIG.

도 6 은 본 발명에 따른 전력품질단말장치(100)의 차단기 개폐동작 제어와 동작시간 측정방법을 보이기 위한 세부 결선도이다. Figure 6 is a detailed connection diagram for showing the breaker opening and closing operation control and operation time measuring method of the power quality terminal device 100 according to the present invention.

먼저 개폐동작 제어에 있어, 제어부(140)가 COS 스위치(i)를 조작한 후, 제어키(113)를 통해 투입(CLOSE) 정보가 입력될 경우, T3 단자대(122)의 CLOSE 접점이 동작하게 되고, CX 보조릴레이(l)에 전원이 공급되어 CX 접점(j)이 동작하고, CX 접점(j)이 동작되면서 차단기(40)가 투입되게 된다. 또한, 제어키(113)를 통해 차단(OPEN) 정보가 입력될 경우, T3 단자대(122)의 OPEN 접점이 동작하게 되고, TX 보조릴레이(m)가 동작하게 되고, TX 접점(k)이 동작되면서 차단기(40)가 차단되게 된다.First, in the opening and closing operation control, when the control unit 140 operates the COS switch (i), when the CLOSE information is input through the control key 113, the CLOSE contact of the T3 terminal block 122 to operate Then, power is supplied to the CX auxiliary relay 1 to operate the CX contact j, and the breaker 40 is input while the CX contact j is operated. In addition, when the OPEN information is input through the control key 113, the OPEN contact of the T3 terminal block 122 is operated, the TX auxiliary relay m is operated, and the TX contact k is operated. The breaker 40 is blocked.

또한, 차단기(40)의 동작시간 측정방법에 관하여 설명하면, 차단기(40)가 투입되어 정상동작하던 중 전력계통의 사고 또는 점검 등으로 인해 차단동작이 이루 어지면, 제어부(140)는 T3 단자대(122)의 ST(+) 단자에 전압이 인가되는 시점부터 차단기(40)가 동작되어 SP(+) 단자 전압이 상실되는 시점(차단기 접점(ACB 33-34번)이 떨어지는 시점)까지를 측정한다. In addition, the operation time measuring method of the circuit breaker 40 will be described. When the circuit breaker 40 is put in place and a blocking operation is performed due to an accident or inspection of the power system during normal operation, the controller 140 controls the T3 terminal block. Measures from the point when voltage is applied to the ST (+) terminal of 122 to the point when the breaker 40 is operated and the SP (+) terminal voltage is lost (breaker contact point (ACB 33-34) falls) do.

측정결과, 동작시간 측정치가 기 설정치보다 빠를 경우, 제어부(140)는 차단기(40)를 정상동작으로 판단하며, 기 설정치보다 늦을 경우 ALARM 접점(o)을 출력하여 근무자에게 경보를 출력하게 된다.As a result of the measurement, when the operation time measurement value is earlier than the preset value, the controller 140 determines the breaker 40 to be in normal operation, and when it is later than the preset value, the control unit 140 outputs an ALARM contact point o to output an alarm to the worker.

도 7 은 본 발명에 따른 화재발생시 소공간 자동소화장치(50)와의 연동양상을 보이기 위한 일예시도로서, 도시된 바와 같이 수배전반 내부에는 전력기기들의 열화 및 노후화에 따른 화재발생을 감지하기 위하여, 상단부에 열 감지기(131)와 연기 감지기(132) 및 소공간 자동소화장치(50)가 부착된다. 7 is an exemplary view for showing the interlocking pattern with the small space automatic fire extinguishing device 50 in the event of a fire according to the present invention, as shown in order to detect a fire caused by deterioration and deterioration of the power equipment inside the switchboard, A heat detector 131, a smoke detector 132, and a small space automatic fire extinguishing device 50 are attached to the upper end.

열 감지기(131) 및 연기 감지기(132)가 화재를 감지하면, 화재감지신호 생성기(133)가 화재 감지신호를 생성하여, T3 단자대(122)의 HEAT(q), GAS(r) 단자로 전송하게 된다.When the heat detector 131 and the smoke detector 132 detect a fire, the fire detection signal generator 133 generates a fire detection signal and transmits the fire detection signal to the HEAT (q) and GAS (r) terminals of the T3 terminal block 122. Done.

이후, 제어부(140)는 상기 두 단자로 전송된 신호 중, 한 개의 신호가 입력되면 T3 단자대(122)의 ALARM 출력접점(p)을 동작시켜 경보를 출력하며, 두 개의 신호가 모두 입력될 경우 FIRE 출력접점(o)을 동작시켜, 소공간 자동소화장치(50)를 분사시킨다. Thereafter, the controller 140 outputs an alarm by operating the ALARM output contact p of the T3 terminal block 122 when one signal is input among the signals transmitted to the two terminals, and when both signals are input. The FIRE output contact o is operated to eject the small space automatic fire extinguishing device 50.

도 8 은 본 발명에 따른 외부 서버 또는 관리자 컴퓨터(30)와의 연결양상을 보이는 일예시도로서, 도시된 바와 같이 외부 서버 또는 관리자 컴퓨터(30)는 접점부(120)의 COM1 포트(123)는 Ethernet(TCP/IP) 통신이 연결되고, COM2 포트(124)와 RS485 통신이 연결된다. 8 is an exemplary view showing the connection with the external server or manager computer 30 according to the present invention, as shown in the external server or manager computer 30 is COM1 port 123 of the contact portion 120 is Ethernet (TCP / IP) communication is connected, and COM2 port 124 and RS485 communication are connected.

따라서, 제어부(140)는 저장된 모든 데이터를 실시간, 이중화 방식으로 외부 서버 또는 관리자 컴퓨터(30)로 전송하게 된다.Therefore, the controller 140 transmits all stored data to the external server or the manager computer 30 in a real time and duplex manner.

이상으로 본 발명의 기술적 사상을 예시하기 위한 바람직한 실시예와 관련하여 설명하고 도시하였지만, 본 발명은 이와 같이 도시되고 설명된 그대로의 구성 및 작용에만 국한되는 것이 아니며, 기술적 사상의 범주를 일탈함이 없이 본 발명에 대해 다수의 변경 및 수정이 가능함을 당업자들은 잘 이해할 수 있을 것이다. 따라서, 그러한 모든 적절한 변경 및 수정과 균등물들도 본 발명의 범위에 속하는 것으로 간주되어야 할 것이다. As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

도 1 은 종래 전력수용가에 설치된 수배전반에 관한 외관도.1 is an external view of a switchgear installed in a conventional power receiver.

도 2 는 본 발명에 따른 전력품질단말장치가 설치된 수배전반의 외관도.Figure 2 is an external view of a switchgear is installed power quality terminal apparatus according to the present invention.

도 3 은 본 발명에 따른 전력품질단말장치에 관한 전체 구성도.3 is an overall configuration of a power quality terminal device according to the present invention.

도 4 는 본 발명에 따른 전력품질단말장치의 전면 및 후면이 보이는 외관도.Figure 4 is an external view showing the front and back of the power quality terminal device according to the present invention.

도 5 는 본 발명에 따른 전력품질단말장치의 부하제어 동작원리를 보이기 위한 세부 결선도. Figure 5 is a detailed connection diagram for showing the load control operation principle of the power quality terminal device according to the present invention.

도 6 은 본 발명에 따른 전력품질단말장치의 차단기 개폐동작 제어와 동작시간 측정방법을 보이기 위한 세부 결선도.Figure 6 is a detailed connection diagram for showing the breaker opening and closing operation control and operation time measuring method of the power quality terminal device according to the present invention.

도 7 은 본 발명에 따른 화재발생시 소공간 자동소화장치와의 연동양상을 보이기 위한 일예시도.Figure 7 is an exemplary view for showing the interlocking pattern with the small space automatic fire extinguishing device when a fire occurs in accordance with the present invention.

도 8 은 본 발명에 따른 외부 서버 또는 관리자 컴퓨터와의 연결양상을 보이는 일예시도.8 is an exemplary view showing a connection pattern with an external server or a manager computer according to the present invention.

** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **

110: 정보 입출력부 120: 접점부110: information input and output unit 120: contact portion

130: 화재 감지부 140: 제어부130: fire detection unit 140: control unit

111: 그래픽 LCD 112: 방향키111: graphic LCD 112: arrow keys

113: 제어키 114: 기능키113: control key 114: function key

115: LED 121: T2 단자대115: LED 121: T2 terminal block

122: T3 단자대 123: COM1 포트122: T3 terminal block 123: COM1 port

124: COM2 포트 125: WHM 단자대124: COM2 port 125: WHM terminal block

126: PWR 단자대 127: T1 단자대126: PWR terminal block 127: T1 terminal block

131: 열 감지기 132: 연기 감지기131: heat detector 132: smoke detector

133: 화재감지신호 생성기133: fire detection signal generator

Claims (7)

전력품질단말장치에 있어서, In the power quality terminal device, 사용자의 각종 제어정보를 입력받고, 그에 따른 정보를 출력하는 정보 입출력부;An information input / output unit configured to receive various control information of a user and output information according to the information; 최대수요전력관리, 차단기 개페동작 제어 및 동작시간 이상진단, 자동소화장치 제어, 통신제어, 전원제어를 위한 접점부;Contact point for maximum demand power management, breaker opening operation control and abnormal operation time diagnosis, automatic fire extinguishing device control, communication control, power control; 열 및 연기를 감지하여 화재감지신호를 생성하는 화재 감지부; 및Fire detection unit for generating a fire detection signal by detecting heat and smoke; And 상기 정보 입출력부, 접점부 및 화재 감지부를 제어하는 제어부; 를 포함하되,A control unit controlling the information input / output unit, the contact unit, and the fire detection unit; Including, 상기 제어부는, 상기 접점부를 통해 유효전력량 신호 및 수요시한 종료 신호를 입력받고, 입력된 신호를 바탕으로 최대수요전력을 계산하여, 예측전력이 목표전력을 초과할 경우 기 설정된 시퀀스(Sequence)에 의해서 부하제어를 실시하는 것을 특징으로 하며,The control unit receives an effective power amount signal and a demand time end signal through the contact unit, calculates the maximum demand power based on the input signal, and, when the predicted power exceeds the target power, performs the preset sequence. Characterized in that the load control is carried out by 상기 접점부는, 부하를 제어하기 위하여 접점신호를 출력해주는 T2 단자대;The contact unit may include a T2 terminal block for outputting a contact signal to control a load; 차단기의 투입 및 차단을 위한 제어출력접점, 경보 출력접점, 소공간 자동소화장치 실행용 출력접점, 열 감지기 및 연기 감지기의 신호입력접점, 차단기 동작상태 신호입력접점을 출력해주는 T3 단자대;A T3 terminal block for outputting a control output contact, an alarm output contact for inputting and blocking a circuit breaker, an output contact for executing a small space automatic fire extinguishing device, a signal input contact of a heat detector and a smoke detector, and a signal input contact of a circuit breaker operating state; 외부 서버 또는 관리자 컴퓨터와 Ethernet(TCP/IP) 통신을 위한 COM1 포트및 RS485 통신을 위한 COM2 포트;A COM1 port for Ethernet (TCP / IP) communication with an external server or administrator computer and a COM2 port for RS485 communication; 전자식 전력량계로부터 신호선을 제공받기 위한 WHM 단자대; A WHM terminal block for receiving a signal line from an electronic electricity meter; 제어전원(AC220V) 공급을 위한 PWR 단자대; 및 PWR terminal block for supplying control power (AC220V); And 수배전반에 공급되는 3상 4선식의 전압 및 전류를 입력받기 위한 T1 단자대; 를 포함하는 것을 특징으로 하는 전력품질단말장치.T1 terminal block for receiving a three-phase four-wire voltage and current supplied to the switchboard; Power quality terminal device comprising a. 삭제delete 삭제delete 삭제delete 제 1 항에 있어서, The method of claim 1, 상기 제어부는,The control unit, 상기 접점부에 인가되는 시점부터 차단기가 동작되어 전압이 상실되는 시점까지를 측정하며, 측정결과 동작시간 측정치가 기 설정치보다 빠를 경우, 상기 제어부가 차단기를 정상동작으로 판단하며, 늦을 경우, 접점부를 통해 경보를 출력하는 것을 특징으로 하는 전력품질단말장치. When the breaker is operated and the voltage is lost from the time point applied to the contact unit, the voltage is measured. When the measured result of the operation time is faster than the preset value, the control unit determines that the breaker is in normal operation. Power quality terminal device, characterized in that for outputting an alarm. 제 1 항에 있어서, The method of claim 1, 상기 제어부는, The control unit, 상기 화재 감지부를 통해 접점부에 한 개의 신호가 입력될 경우, 상기 접점 부를 통해 경보를 출력시키며, 두 개의 신호가 입력될 경우 소공간 자동소화장치를 분사시키는 것을 특징으로 하는 전력품질단말장치. When one signal is input to the contact portion through the fire detection unit, and outputs an alarm through the contact portion, the power quality terminal device characterized in that to spray a small space automatic fire extinguishing device when two signals are input. 삭제delete
KR1020090105275A 2009-11-03 2009-11-03 Power quality device KR100961542B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101223670B1 (en) 2012-07-27 2013-01-23 (주) 동보파워텍 Switchgear installed power control unit with commercial-emergency power supply control function and method for operating thereof
CN118246912A (en) * 2024-05-28 2024-06-25 浙江松夏仪表有限公司 Electric meter prepayment method and system based on artificial intelligence

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Publication number Priority date Publication date Assignee Title
KR100821825B1 (en) * 2007-12-27 2008-04-14 주식회사 케이디파워 Monitering rf power system in global energy management system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100821825B1 (en) * 2007-12-27 2008-04-14 주식회사 케이디파워 Monitering rf power system in global energy management system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101223670B1 (en) 2012-07-27 2013-01-23 (주) 동보파워텍 Switchgear installed power control unit with commercial-emergency power supply control function and method for operating thereof
CN118246912A (en) * 2024-05-28 2024-06-25 浙江松夏仪表有限公司 Electric meter prepayment method and system based on artificial intelligence

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