KR20030082494A - Collection System for Integrated Data of Overhead and Underground Distribution Line - Google Patents

Abstract

PURPOSE: A system for collecting the complex information of an electric power distribution line is provided to detect the switching status of the circuits and to minimize the recovery time of the failures by rapidly detecting the failure period during the failure of the line. CONSTITUTION: A system for collecting the complex information of an electric power distribution line includes a transformer information detection transmitter and receiver(12), a switch information detection transmitter and receiver(13) and a collector(11). In the system, the transformer information detection transmitter and receiver(12) detects the current values for each of the phases, the voltage values for each of the phases and body temperature values of the transformer, transmits and receives the data communication with the collector(11) by a local wireless communication method. The switch information detection transmitter and receiver(13) detects the switching status of each circuit, the current values for each phase and the operational state of the failure display for each circuit. And, the collector(11) is communicated with the transformer information detection transmitter and receiver(12) and the switch information detection transmitter and receiver(13) by a local wireless communication method and communicated with the main controller(10) of the upper communication device with the global communication method.

Description

Distribution Line Integrated Information Collection System {Collection System for Integrated Data of Overhead and Underground Distribution Line}

The present invention detects necessary information generated in all transformers, switches, lines, manholes, etc. without distinguishing between overhead distribution lines and underground distribution lines in a distribution line that is a power supply facility of a power supplier, and uses a specific low power short range radio wave by a radio wave method. By applying a combination of the communication method and the PCS phone module communication method, which is a commercial long-distance communication method, it is collected by the Internet Web Server for comprehensive information management.The collected new data information is reproduced by using the collected data information. The present invention relates to a system that enables effective management of distribution lines by allowing anyone concerned to search through a PC, PDA, mobile phone, or the like.

Looking at the conventional techniques to which the present invention belongs, the process distribution line failure indicator, overload alarm, ground transformer load, temperature radio measuring device, underground distribution line failure indicator, etc., which are information detection means for each device, have been developed and utilized by the power company or presently. It is in use.

However, the system that collects the detected information in the far-field has only recently been published by KEPCO's purchase specification regarding the wireless load monitoring system for column transformers.

In addition, as a result of searching for technologies similar to the present invention in a patent publication, "A transformer state information detection, display, alarm and transmission device for underground distribution lines" of Publication No. 1999-004268 (published: January 15, 1999). And an apparatus and method for determining a distribution system failure section in consideration of "fault indicator and fault current value" of Publication No. 2003-0035014 (published: May 09, 2003).

However, when the above two items are examined closely, "transformer status information detection, display, alarm and transmission device for underground distribution line" is simply referred to as a communication network, which is a means of collecting information generated in the far-field, in connection with CATV transmission network. It was all to do. In addition, "distribution system failure section determination device and its method considering fault indicator and fault current value" are technologies that can be applied only in the area where distribution automation is complete, and it is considered that it is difficult to commercialize them. Until recently, technologies have been applied to each collection system concept by dividing overhead line section and underground line section into separate sections. Therefore, the integrated data collection method can be more efficient for the power supplier who supplies power by using the overhead line method and the underground line method.

The present invention is to solve the conventional problems as described above, the secondary side phase current value, the secondary side phase voltage value of the transformer, the temperature value of the transformer without any distinction between overhead distribution line and underground distribution line in the distribution line Detects and detects the current value of all switches by circuit, occurrence of fault current, open / closed state by circuit, and load current state of all lines, flooding of underground manhole, opening and closing of lid, etc. It detects the state, submerged state, fire detector operating state, inflow alarm of toxic or explosive or flammable gas or material, and mixes the specific low power short range wireless communication method with PCS phone module communication method which is a commercial long distance communication means. It is collected by Internet Web Server for comprehensive information management, and predetermined new data is collected by using the collected data information. The present invention relates to a system that enables the management of effective distribution lines by reproducing the beams so that anyone concerned can search through the PC, PDA, mobile phone, etc., as well as the manager in charge. However, in order for the system of the present invention to be practical, the conditions of communication reliability, economic installation cost, and economic operation maintenance cost of the information collection system must be satisfied. Therefore, information gathering in the field adopts a specific low power short range wireless communication method, so that data information can be collected from one of many terminals in a wide area as possible with one concentrator, and transformer information and overhead line section of overhead line section. The technical problem of the present invention is to integrate a switch information and transformer information of the underground line section and the switch information of the underground line section so that a single communication terminal identification number (ID) system is provided. By using the PCS phone module communication method as a communication means, the technical problem of the present invention to minimize the maintenance cost by minimizing the PCS phone subscription line.

1 is a flow chart illustrating an example of information on which paths of information of scattered distribution line devices are collected.

2 is an exemplary block diagram of a transformer information detection transceiver 12.

3 is an exemplary block diagram of the switch information detection receiver 13;

4 is an exemplary block diagram of the main controller 10 and the concentrator 11;

Distribution line comprehensive information collection system of the present invention for achieving the above object will be described based on the accompanying drawings as follows.

FIG. 1 is an exemplary flow diagram of information indicating through which path information of scattered distribution line devices is collected.

The equipment configuration of overhead distribution lines is generally simple, but the construction of underground distribution lines is rather complicated. In the case of overhead distribution lines, one, two or three columnar transformers are provided for each periphery, and the switch of overhead lines has a simple circuit and very few numbers.

Therefore, one transformer information detection transmitter / receiver 12 is provided for each periphery, and one switch information detection transmitter / receiver 13 is provided for each switch.

Underground distribution lines, however, are all switches for circuits, and the number of switches is almost the same as the number of transformers. In some places, there are places where more than five switches and transformers are installed. In addition, the number of installation of manholes is large, and various data information of the electric power cord must be managed.

Therefore, it is inefficient for wireless communication operation to treat all device information as a wireless terminal equipped with RF module. Therefore, the information of devices that are gathered or located in a certain area is connected to wired communication such as RS232, RS422, RS485, IIC. It collects and transmits wirelessly to one terminal.

As shown in the example flow chart, a plurality of transformer information detectors 14, a plurality of switch information detectors 15, manhole information, and power supply information are combined to form a single transformer information detection receiver 12 or switch information detection receiver 13; It is a way to flow into the information collection system using.

Here, the transformer information detector 14 is simply a device for detecting the information of the transformer, and the transformer information detection transmitter 12 means not only the information of the transformer but also received and stored information of adjacent devices through wired communication. It is a device that can transmit data information to the focusing machine through the RF module for short-range wireless communication with a specific low power. The meanings of the switch information detector 15 and the switch information detection transmitter 13 are also the same as those of the above-described transformer.

The transmitters of this method each have a built-in RF module to play the role of a wireless terminal. Therefore, by setting 20 to 400 wireless terminals in one section, a focuser is installed in the center of one section and data data of all terminals is collected.

At this time, the terminals that are outside the communication communication distance that the specific low power wireless terminal cannot communicate directly with the focusing machine 11 have a communication program that enables communication by relay transmission of other terminals located between the focusing device 11. Built in.

The data information collected by the concentrator 11 is transmitted to the main controller 10 of the management station through the long distance communication of the PCS phone module, and the main controller 10 is inputted to the web server again.

2 is an exemplary block diagram of a transformer information detection receiver 12.

Current is detected by installing current transformers in the secondary side bushings of the transformer or terminals or secondary leads, and the voltage source and power source are connected at the secondary terminal to detect each phase voltage for each phase. Secure the system. If the transformer is a single-phase transformer, it detects only one phase voltage and one phase current, and if two transformers are installed on one periphery, it detects two phase currents and two phase voltages.

The temperature is detected through a temperature sensor. In the case of a three-phase transformer, only one temperature is detected.

When the current value, the voltage value and the temperature value are input to the CPU 20 in this way, the CPU 20 calculates and stores it. In addition, the CPU 20 is a wired communication port 22 capable of receiving data information from another transformer information detector 14, a switch information detector 15, a manhole information detector 16, or a power tool information detector 17. ), And has a port for connecting to the dip switch 23 indicating its identification number for a systematic communication program during wireless communication.

In addition, the CPU 20 has a port for the RF module together with a program for controlling the RF module 21 which is a specific low power wireless terminal capable of transmitting data information stored therein to the concentrator 11.

3 is an exemplary block diagram of the switch information detection transceiver 13. As shown in FIG.

The switches of the underground distribution line are mainly equipped with multi-circuit switches. Here, it will be explained that all four circuits are used in the four-circuit switch.

A current transformer 34 is installed in each phase bushing for each circuit of the switch to detect a current and input the same to the CPU 30. The CPU 30 normally stores the load current, but when a large current is detected, the CPU 30 calculates whether the current is a start or inrush current or a fault current, and in the case of a fault current, generates an event signal on the corresponding circuit. First and foremost, the main controller 10 is quickly transmitted to the main controller 10 through the concentrator 11.

The switching state of each switch is input to the CPU 30 using the auxiliary contact 37 of each circuit switch, and the other transformer information detector 14 or switch information detector 15 or manhole information detector 16 The CPU 30 has a wired communication port 32 capable of receiving data information from the power sphere information detectors 17, and indicates its identification number for a systematic communication program during wireless communication. Has a port connected to the CPU 30.

In addition, the CPU 20 has an input / output port for the RF module together with a communication program for controlling the RF module 31 which is a specific low power wireless terminal capable of transmitting the data information stored therein to the concentrator 11.

Since the power supply of the system does not have a low voltage alternating current power supply, in addition to the current detection current transformer 34 in one of the high voltage circuits, an additional current transformer 35 for the system power is installed to provide a power supply 36 having functions of charging and storage. Install. In the power supply of this method, when a small load current flows, a minimum power is detected, and a load current becomes zero, so power storage is necessary.

4 is an exemplary block diagram of the main controller 10 and the concentrator 11.

The main controller 10 controls the PCS phone module, which is a long distance communication means capable of receiving data information from the concentrator 11, a power supply for supplying power to the system, and wired communication between long distance communication and a web server. It consists of the CPU 40 in which a program was built.

The concentrator 11 calculates and stores the RF module 43 which performs wireless communication with all the wireless terminals 12 and 13 in the section, and data information input from the RF module 43, and performs RF communication and PCS communication. It is composed of a CPU 41 having a built-in communication program, a PCS phone module which is a long distance communication means for transmitting data information to the main controller 10, and a power supply device having a function of power storage and charging.

As described above, the distribution line comprehensive information collection system according to the present invention,

In addition to the information on transformers and switches in overhead distribution lines, various information on transformers and switches in underground distribution lines, manholes and power holes can be managed in one remote information collection system, so that transformer load management and line failures can be managed. It can be used to quickly find fault location, manhole safety management, and power supply safety management. Transformer information is useful for overload management, transformer temperature management, demand forecasting, transformer utilization rate, secondary voltage management, etc. In addition, the switch information can identify the current status of the distribution line system, identify the open / closed state of each switch and circuits, and minimize fault recovery time by quickly identifying the fault section in the event of a line failure. The information of the manhole can know the state of flooding, by monitoring the opening and closing of the lid, to ensure the safety by controlling unauthorized entry of the contractor. In addition, the information of the power cord is safe by monitoring flooding conditions, fire detector operation status, toxic or explosive or flammable gas or material inflow alarm, and preventing large accidents in advance, and by monitoring the opening and closing of the entrance and controlling the entrance and exit of persons outside of the control. Can be secured.

Claims (6)

In the distribution line comprehensive information collection system that collects the information of the overhead distribution line and underground distribution line of the power supply equipment, A transformer information detection transceiver 12 which detects phase current value, phase voltage value, and body temperature value of each transformer, and transmits and receives data communication by the concentrator 11 and short-range wireless communication method of specific low power by the radio wave method; Switch information detection transmitter and receiver for detecting the open / close state of each switch and each phase current value of each circuit, and the operation state of the fault indicator for each circuit, and transmitting and receiving data communication in the short-range wireless communication method of the specific low power by the concentrator 11 and the radio wave method. 13, The transformer information detection transceiver 12 and the switch information detection transceiver 13 transmit and receive data communication in a specific low power short-range wireless communication method, and transmit and receive data communication with a main controller 10, which is an upper communication device, by a long distance communication means. A concentrator 11, and between the transformer information detection receiver 12, the switch information detection receiver 13, and the concentrator 11, using a specific low power short range wireless communication system, An integrated distribution line information collection system comprising a method of collecting and collecting switch information of overhead lines, transformer information of underground lines, and switch information of underground lines. According to claim 1, characterized in that 20 to 400 transformer information detection transmitter and receiver 12 and switch information detection transmitter and receiver 13 use one communication identification number system without distinguishing between overhead distribution line and underground distribution line. Distribution line comprehensive information collection system. The method according to claim 1, wherein the manhole information and the power supply information are collected and integrated into the same communication system together with the collection of the transformer information of the overhead line, the switch information of the overhead line, the transformer information of the underground line, and the switch information of the underground line. Distribution line comprehensive information collection system, characterized in that the use. The method of claim 1, A current detector for detecting each phase current from the current transformer 24 provided on the secondary side of the transformer; A voltage detector for detecting each phase voltage connected from the transformer secondary terminal; A temperature detector for detecting a temperature from the temperature sensor 25 attached to the transformer body, A wireless communication module 21 capable of transmitting and receiving data information through a focusing machine and wireless communication, A power supply 26 for supplying power to the system, Dip switch 23 indicating its identification number when performing wireless communication, the wire, communication port 22 for receiving, calculating and storing the current, voltage and temperature values, and receiving data information of adjacent devices by wire communication. It has a communication port for inputting / outputting with a wireless communication module, and can be relayed by using one identification number system for communication between 20 to 400 communication terminals without distinguishing between overhead distribution line and underground distribution line. Distribution line integrated information collection system, characterized in that using the transformer information detection transmitter and receiver (12) consisting of a CPU (20) with a built-in program. The method of claim 1, A device for detecting each phase current for each circuit of the switch, An apparatus for detecting a state of the auxiliary contact 37 of the switch for each circuit, A wireless communication module 31 capable of transmitting and receiving data information through a focuser and wireless communication, Power supply unit 36 for supplying power to the system using a separate current transformer 35, When performing wireless communication, the dip switch 33 indicating its identification number and the current value are received and calculated to determine and store a normal load current and a fault current, and receive data information of adjacent devices by wire communication. It has a wired communication port, has a communication port for inputting / outputting with a wireless communication module, and relays transmissions using one identification number system for communication between 20 to 400 communication terminals without distinguishing between overhead distribution lines and underground distribution lines. Distribution line integrated information collection system, characterized in that for using a switch information detection transmitter and receiver (13) consisting of a CPU (30) with a built-in communication program. The method of claim 1, A wireless communication module 43 capable of performing wireless communication with the transformer information detection transmitters 12 and the switch information detection transmitters 13; PCS phone module 44 capable of transmitting and receiving data to and from the main controller 10, a power supply 46 having a charging and power storage function to secure the system power supply with a low voltage AC power supply, and 20 to 400 species The use of a concentrator 11 composed of a CPU 41 having a built-in communication program which can serve as a main communication terminal of the communication terminals and controls communication between the wireless communication module 43 and the PCS phone module 44. Distribution line comprehensive information collection system characterized by.