KR20070119928A - Sensing rectification system of error generation - Google Patents

Abstract

A rectification system with an error detection function is provided to enable a user to quickly manage an erroneous situation by generating audio and video alarms to the user according to a type of the error. A rectification system includes an AC distribution box(600), a DC distribution box(500), a rectifier body(200), and a computing system. The AC distribution box receives a commercial voltage and outputs an AC voltage. The DC distribution box charges a battery and divides a DC voltage. The rectifier body protects base station equipment, converts the AC voltage to the DC voltage, and detects an error of the equipment. The computing system is connected to the rectifier body using a wireless or wire scheme and displays an error signal, which is outputted from the rectifier body, using audio and video signals.

Description

Sensing rectification system of error generation

1A and 1B illustrate a typical uninterruptible power supply and rectification system of the prior art.

2 is a diagram illustrating a power supply unit supplying power to a control sequence unit of a conventional uninterruptible power supply.

3 is a front view of the fault detection rectification system according to the present invention.

4 is a flowchart of an abnormality notification of the abnormality detection rectification system according to the present invention.

<Explanation of symbols for important parts of drawing>

21: control module 22: rectification module

31: data processing unit 32: sending unit

33: Applicable alarm DB 40: Output

41: speaker 42: LED

43: computer monitor 200: rectifier

500: DC distribution panel 600: AC distribution panel

The present invention relates to an anomaly detection system, and more particularly to an anomaly detection rectification system capable of identifying and monitoring an anomaly signal of each base station or switching center with the naked eye and hearing.

In general, large factories such as steel mills use uninterruptible power supplies. Such an uninterruptible power supply converts AC power into DC power and then converts it back into AC power, and when the AC input power is interrupted due to a power failure, the DC power stored in the battery is converted into AC power and installed on the load side in an uninterrupted manner. It supplies power to programmable logic control and distributed control devices.

1A and 1B illustrate a conventional uninterruptible power supply and a rectifier of the prior art, and FIG. 2 shows a power supply for supplying power to a control sequence portion of a conventional uninterruptible power supply.

1A and 1B, an uninterruptible power supply device includes a converter 1 for converting an input AC power into a DC power supply, and a storage battery 2 connected to a rear end of the converter 1 to supply power in an uninterrupted manner in the event of a power failure. ), An inverter (3) converting the DC power converted by the converter (1) back into an AC power source, and in the event that an abnormality occurs in the inverter (3), an uninterrupted transfer is performed by a bypass line. Static switch 4 to be switched for inspection and repair, and bypass transformer 5 to meet the power rating of the load stage (voltage level required by the programmable logic control of the load stage, distributed controller, etc.) It is composed.

The uninterruptible power supply of the above configuration operates as follows.

First, the power system of the uninterruptible power supply is provided with a normal supply power supply line and a bypass power supply line. The bypass power line supplies power to the load end in an indispensable manner when an operation failure occurs in the inverter 3 of the normal supply power line. In this case, the non-switching is performed by the static switch 4. In addition, the bypass power line is used for manual switching in the inspection and maintenance of equipment.

The input AC power is converted into DC power in the converter 1 and continuously charged in the storage battery 2 to be used as power in an emergency, i.e., in case of power failure, and then converted back into AC power by the inverter 3, and then the load stage Supplied to. When an abnormality occurs in the inverter 3, an alarm detector (not shown) automatically operates the static switch 4 to switch the power supply line to the bypass power line.

The rectifier system is a general apparatus for converting AC power to DC power, and as shown in FIG. 1B, a rectifier circuit 51 for rectifying the input AC power into a bridge diode, and the AC power becomes an electrostatic power interruption or loses power during load interruption. And rectified by passing through a PWM control 55 for reducing the power supply time by the battery, a switching unit 52 for switching at a high frequency in response to the electrostatic signal of the PWM control 55, and a transformer unit 53. It is composed of a rectifying and smoothing unit 54 to stabilize the power supply to output the DC power.

This rectifier system converts AC power supplied from KEPCO into DC power to supply power to the base station or the exchange of the exchange.

The failure of the rectifier system leads to service interruption of the exchange, and the restoration of the rectifier system is very important, and the recovery time can be drastically reduced if the fault and rectification system of the faulty rectifier system can be visually and audited. Could be.

As shown in FIG. 2, a conventional uninterruptible power supply is provided with a control sequence unit. DC power supply 12V and 24V are supplied by the control sequence power supply units 6 and 7, and are connected to the power supply units 6 and 7 to detect the state of the DC 24V, and the power supply unit 6. And a direct current 12 V constant voltage unit 13 connected to the terminal 7 to detect a state of the direct current 12 V.

At this time, such an alarm occurs when the input of the AC power is cut off, when the DC power is below the set value, when the grounding of the DC power is bad, when the inverter 3 is bad, or when the uninterruptible power supply is overloaded. If the fuse of each part on the inverter 3 side is defective, the inverter 3 side is overheated, the cooling fan of the inverter 3 is defective, or the battery 2 is discharged. do.

In general, the main purpose of the uninterruptible power supply is to supply power continuously in the event of a momentary or constant power failure at the load stage, so that the factory processor is not interrupted and subsequent safety measures are possible even during a long power outage. It is to make it.

Therefore, it is equipped with various alarm devices so as to promptly inform the driver of any problem in the power supply device and the power line to be switched by the static switch to the bypass power line.

The control sequence power supply is also redundant.

However, despite these various safety measures, the following serious problems exist in the uninterruptible power supply.

If one of the two power supply units for the control sequence fails, there is no alarm function, so the operating status cannot be checked at all from the outside, and even if a failure occurs, the actual power is cut off momentarily and the uninterruptible power supply does not operate normally. It must be stopped to identify the failure of the power supply. In the end, the uninterruptible power supply does not function properly, and the situation occurs after the major accident.

The phenomenon that the DC power is continuously discharged from the battery as well as there is no function to alarm externally when there is an error in the thyristor, which is a component of the converter that converts AC power to DC power. Because of this, it is impossible to check whether the DC power supply is abnormal. Therefore, the situation judgment and action are possible only after the factory processor is stopped. In other words, the alarm operation of the uninterruptible power supply only has a function of automatically stopping and alarming the uninterruptible power supply itself related to battery protection and non-rated output when the DC power is below a predetermined level.

Accordingly, an object of the present invention is to provide a fault detection rectification system that can identify the fault occurrence history and recovery method of each base station or switching center equipment with the naked eye and hearing. .

An abnormality detection rectification system of the present invention for achieving the above object, the AC distribution board for receiving the KEPCO power supply and output the alternating current, and the DC distribution board for charging and distributing the DC power supply and charging the battery, Equipment protection function of base station or switching center, rectification function for converting AC power into DC power, rectification main body to control equipment abnormal occurrence, and abnormality signal output from the rectification main body connected to the rectifying main body by wire and wirelessly identified It is characterized by consisting of a computing system capable of.

The rectifying body includes a rectifying module for checking and managing input voltage protection, fuse short circuit, and output overload, rectifying AC power to DC power, and a control module for monitoring and controlling an error signal to send an error signal. It is done.

The control module includes a data processing unit for analyzing and comparing signals when an error occurrence signal is input, a corresponding alarm database for storing and managing a type of an error occurrence, and an alarm signal by receiving an error signal of the data processing unit. And an output unit for outputting a transmission sound and an alarm LED and a message according to an error occurrence type.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

3 is a front view of the fault detection rectification system according to the present invention, Figure 4 is a flow chart of the fault detection notification of the fault detection rectification system according to the present invention.

Referring to Figure 3, the abnormality detection rectification system of the present invention, in the power supply device for supplying DC power to the exchanger, the AC distribution panel 600 for receiving the KEPCO power to output AC, and charging the battery and DC distribution panel 500 for distributing and outputting DC power, rectification function for converting the equipment protection function of the connected base station or exchange station and AC power to DC power and rectification main body 200 for controlling the occurrence of equipment abnormality, and the rectification main body It is composed of a computing system (not shown) connected to the wire 200 and wired to identify and identify the abnormal occurrence signal output from the rectifying body 200 by visual and audio.

The rectifier main body 200 has a rectifier module 22 for rectifying AC power to DC power, and a control module 21 for monitoring and controlling the state of each part to send an error signal when an error occurs in one rack. have.

Referring to FIG. 4, when a signal of an abnormal occurrence is input from the control module 21 of the rectifier system, a data processor 31 analyzing and comparing the signal and a corresponding alarm database storing and managing the type of the abnormal occurrence as a database ( 33), a transmission unit 32 for receiving the abnormal signal of the data processing unit 31 to detect the contents of the corresponding alarm, and an output unit for outputting the sound and alarm LED and the message according to the type of error occurrence It consists of 40.

In this case, the output unit 40 is composed of a speaker 41 for the alarm sound notification, LED 42 for notifying the warning by blinking and a computer monitor 43 for displaying the type of occurrence of the error as a message. .

As the types of abnormality, power failure, overvoltage, low voltage, fuse short, and the like occur. At the time of power failure, "current rectification system is power failure." When the output sound (ment) is sent out, and in case of over / under voltage, "current rectifier system is over / low voltage. Please check No. 3 rectifier module of rectifier 1." When the fuse is shorted, "The fuse of the rectifier system is shorted." Is sent out.

In addition, the LED 42 blinks in response to the transmission of the transmission sound.

Then, the message displayed on the computer monitor varies depending on the type of abnormal occurrence. The message will display the contents and the action of the sound.

Hereinafter, the operation of the above-described abnormality detection rectification system will be described.

First, in the system of the rectifying module 22, when a failure occurs in each base station and the switching station, the equipment fault signal is transmitted.

Subsequently, the control module 21 amplifies and compares the failure signal generated by the rectifying module 22 by the data processor 31. In addition, the transmitter 40 finds the same data as the analysis data output from the data processor 31 in the corresponding alarm database 33 and outputs a signal to the output unit 40.

At this time, the output unit 40 is an abnormal notification transmission sound and the alarm LED is turned on, and displays the abnormal state of the corresponding alarm to the computing monitor as a message.

The output unit 40 checks the corresponding sound and the alarm LED and the corresponding message, and can quickly recover the equipment of the base station or the switching center.

As described above, the present invention detects an abnormal occurrence of each base station or switching center and emits an alarm by hearing and time, thereby preventing a large-scale equipment accident and thereby preventing human injury. In addition, since the corresponding signal is transmitted according to the type of abnormality, the cause of the failure can be visually and visually confirmed, thereby reducing the recovery time.

Claims (3)

In the anomaly detection system, An AC distribution panel for receiving AC power and receiving AC power; A DC distribution panel charging the battery and distributing and outputting the DC power; A rectifier function that converts an AC power source into a DC power source and a device protection function of a connected base station or an exchange station, and a rectifier base body that controls an occurrence of an equipment error; And And a computing system connected to the rectifying main body by wire and wireless to identify and identify the abnormal occurrence signal output from the rectifying main body by visual and auditory identification. The method of claim 1, The rectifying body includes: a rectifying module for checking and managing input voltage protection, fuse short circuit, and output overload, and rectifying AC power to DC power; Abnormality detection rectification system, characterized in that consisting of a control module that monitors and controls and sends an error signal when an error occurs. The method of claim 2, The control module may include a data processor configured to analyze and compare a signal when an abnormal occurrence signal is input; A corresponding alarm database for storing and managing a type of abnormality in a database; A transmitter for receiving an abnormal signal of the data processor and detecting a corresponding alarm; And An error detection rectification system, characterized in that composed of an output unit for outputting a sound and alarm LED and a message according to the type of error occurrence.

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