KR20170056334A - Switchgear Seismic Control System with auto-recovery function - Google Patents

Switchgear Seismic Control System with auto-recovery function Download PDF

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Publication number
KR20170056334A
KR20170056334A KR1020150159885A KR20150159885A KR20170056334A KR 20170056334 A KR20170056334 A KR 20170056334A KR 1020150159885 A KR1020150159885 A KR 1020150159885A KR 20150159885 A KR20150159885 A KR 20150159885A KR 20170056334 A KR20170056334 A KR 20170056334A
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KR
South Korea
Prior art keywords
earthquake
power
controller
unit
seismic
Prior art date
Application number
KR1020150159885A
Other languages
Korean (ko)
Inventor
윤태성
안호균
김태규
최원묵
차재석
배종훈
Original Assignee
창원대학교 산학협력단
주식회사 나산전기산업
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Application filed by 창원대학교 산학협력단, 주식회사 나산전기산업 filed Critical 창원대학교 산학협력단
Priority to KR1020150159885A priority Critical patent/KR20170056334A/en
Publication of KR20170056334A publication Critical patent/KR20170056334A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Distribution Board (AREA)

Abstract

The present invention relates to a seismic displacement control system having an automatic return function for automatically returning a position value of an earthquake mount while minimizing conduction and damage of a switchboard. The present invention relates to an earthquake-detection sensor unit for detecting earthquake-resistant data; The seismic data is sampled and collected at regular intervals through the seismic sensor unit, and the earthquake is judged by comparing the maximum value and the minimum value. The control signal for each step is outputted according to the seismic intensity, the position value of the seismic mount is stored, A controller to control; A commercial power cutoff unit for shutting off commercial power of 220 V under the control of the controller; A 24V cutoff unit for shutting off the power of 24V under the control of the controller; A motor driver for raising or lowering an earthquake-proof mount of the power transmission / And an emergency power charging / discharging unit charged with a commercial power supply of 220V at normal time and supplying emergency power to the controller in an emergency.

Description

Technical Field [0001] The present invention relates to a seismic control system with a switchgear seismic control system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation control system having an automatic return function, and more particularly, to a seismic isolation control system having an automatic return function for storing a position value of an earthquake- .

An earthquake is one of the natural disasters that can damage huge lives and property in a short time. In particular, when an earthquake occurs, damage to the power system, such as the power distribution system that receives power from the power plant, can lead to a greater loss in society.

Therefore, the conventional switchboard system can lead to the transmission and damage of the switchboard in a situation where the damage of the earthquake becomes large as described above, and there is a problem that it is not equipped with a function of automatically returning power in such a situation.

Korean Registered Patent No. 10-1033525 (April 29, 2011)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide a seismic displacement control system having an automatic return function for automatically returning a position value of an earthquake- There is a purpose.

According to an aspect of the present invention, there is provided an earthquake-detection system comprising: an earthquake detection sensor unit for detecting earthquake-resistant data; The seismic data is sampled and collected at regular intervals through the seismic sensor unit, and the earthquake is judged by comparing the maximum value and the minimum value. The control signal for each step is outputted according to the seismic intensity, the position value of the seismic mount is stored, A controller to control; A commercial power cutoff unit for shutting off commercial power of 220 V under the control of the controller; A 24V cutoff unit for shutting off the power of 24V under the control of the controller; A motor driver for raising or lowering an earthquake-proof mount of the power transmission / And an emergency power supply charge / discharge unit charged with a commercial power supply of 220 V and supplying emergency power to the controller in an emergency.

Preferably, the three-axis acceleration sensor is applied to the earthquake detection sensor unit.

The controller drives the motor driver to lower the earthquake mount when the first stage earthquake is determined, to shut off the commercial power source of 220V by driving the commercial power cutoff unit, and to drive the emergency power charge / discharge unit When the two-stage earthquake is canceled, the motor driver is driven to raise the earthquake-proof mount, and the commercial power cutoff unit is released to supply 220V commercial power. .

Preferably, the controller stores the initial position value of the earthquake-proof mount only with the emergency power supplied from the emergency power-source colliding part in all the power-off states.

According to the present invention, it is possible to store the position value of the earthquake-resistant mount and automatically return the earthquake-resistant mount while minimizing the conduction and damage of the switchboard.

1 is a block diagram showing a seismic retrofit control system having an automatic return function according to a preferred embodiment of the present invention.
2 is a flowchart showing a control algorithm of a seismic control system for a seismic isolation system having an automatic return function according to a preferred embodiment of the present invention.
Fig. 3 is a view showing a support base of an earthquake-proof mount of the present invention,
FIG. 4 is a view showing a seismic test procedure of a switchboard according to the present invention,
5 is a view showing an earthquake-resistant apparatus installed in a switchboard of the present invention.

The present invention may have various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

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

FIG. 1 is a block diagram illustrating a seismic isolation control system having an automatic return function according to a preferred embodiment of the present invention. FIG. 2 is a block diagram illustrating a control algorithm of a seismic isolation control system having an automatic return function according to a preferred embodiment of the present invention. Fig. FIG. 3 is a view showing a supporting stand of an earthquake-proof mount of the present invention. FIG. 4 is a view showing an earthquake-proof test procedure of a switchboard according to the present invention, and FIG. 5 is a view showing an earthquake-resistant apparatus installed in a switchboard of the present invention.

As shown in the figure, the seismic control system with automatic return function according to the present invention includes an earthquake detection unit 10, a controller (MCU) 20, a commercial power cutoff unit 30, a 24V cutoff unit 40, A motor driver 50, an emergency power supply charging unit 60, and an earthquake-proof mount 70. [

The earthquake detection sensor unit 10 senses earthquake-resistant data, and it is particularly preferable to use a three-axis acceleration sensor.

The controller (MCU) 20 samples and collects seismic data at regular intervals through the seismic sensor unit 10, compares the maximum value and the minimum value to determine an earthquake, and outputs a stepwise control signal according to the seismic intensity , The position value of the earthquake mount is stored and controlled to be automatically returned.

The commercial power cut-off unit 30 cuts off the commercial power of 220 V under the control of the controller 20.

The 24V cut-off unit 40 cuts off the power of 24V under the control of the controller 20.

The motor driver 50 raises or lowers the earthquake-proof mount 70 of the power transmission / reception section under the control of the controller 20.

The emergency power supply charging unit 60 is charged with a commercial power supply of normally 220 V and supplies the emergency power supply to the controller in an emergency.

The controller 20 drives the motor driver 50 to descend the earthquake-proof mount 70 and drives the commercial power cut-off unit 30 to cut off the commercial power of 220 V, When the second stage earthquake is judged, the emergency power supply charging unit 60 is driven, the emergency power supply is supplied, the 24V cutoff unit 40 is operated to cut off the power of 24V, 50 can be driven to raise the earthquake-proof mount 70, and the commercial power cut-off unit 30 can be released to supply 220 V of commercial power.

It is preferable that the controller 20 stores the initial position value of the earthquake-proof mount 70 only with the emergency power supplied from the emergency-power-supply collider 60 in all the power-off states.

The operation of the seismic displacement control system having the automatic return function according to the present invention will be described in detail with reference to the accompanying drawings.

First, a normal main power on / off switch (not shown) is operated and a voltage of 24 V is applied to each part of the switchgear. In addition, the emergency power source charging unit 60 is charged with electric power as an auxiliary power source. Then, after the controller (MCU) 20 judges the earthquake-proof state, the commercial power supply 220V is turned on and the power supply of 220V is supplied.

The determination of the earthquake-proof state is performed every 1 ms period of the input of the seismic sensor unit 10. For example, 100 data may be sampled and the maximum value and the minimum value may be compared (S100).

A conventional three-axis acceleration sensor (not shown) may be applied to the seismic sensor unit 10.

The seismic data collects three pieces of data through a three-axis acceleration sensor (not shown), and distinguishes the three pieces of data. In this case, the judgment of the vibration of the degree 3 or less is judged as the door opening and closing of the switchgear, the short-circuit and contact of the internal switch and the breaker, and the shallow earthquake, and the earthquake- (S110).

The controller 20 divides the data received by the earthquake detection sensor 10 into three levels when an earthquake of magnitude 3 or more is generated. The controller 20 determines whether the magnitude of the data is equal to or less than 6 as a sampling value of the first earthquake.

As a result of the judgment by the controller 20, if it is 6 or less, the highest priority operation is the descent of the earthquake-proof mount 70. That is, by driving the motor drive 50 to descend the earthquake-proof mount 70, the commercial power cutoff unit 30 is operated in the next operation while the oscillation of the transmission / (S120 to S130).

Thereafter, the controller 20 distinguishes the data received by the second sampling. If it is 6 or less, the controller 20 maintains the current operation, and a timer (not shown) for the additional data is operated. The timer function is a preliminary operation for data sampling for primary, secondary, and tertiary earthquakes.

If the degree of progress to the third order is less than or equal to 6, the current operation is maintained and the timer (not shown) is operated again. If the sampled data is maintained at a stable value at this time, the seismic mount 70 is returned to its home position, The cut-off portion 30 is also released, and the power supply of 220 V is normally supplied to the power switch (S200 to S210).

When the controller 20 determines that the sensed data value of the seismic detection sensor unit 10 is the strongest data of the intensity 6 or more (the current operation state is the downward state of the earthquake mount 70 and the 220V power cutoff state) After the emergency power source is turned on by operating the charging unit 60, the 24V blocking unit 40 is operated to shut off the 24V control power source (S150 to S160).

At this time, the earthquake-proof mount 70 is kept in the lowered state, and the position value of the lowered state is automatically maintained by the controller 20, and the controller 20, (S170 to S180). The first position value of the earthquake-proof mount 70 is stored only by the emergency power source supplied from the emergency power source. In this case, when the power transmission / distribution panel is repaired, the power source shutoff unit 30 may be released after the earthquake-proof mount 70 is lifted to return the 220V power source (S190 to S210).

3, the earthquake-proof mount 70 of the present invention comprises a support 71 and a plurality of springs 72 provided on the outer periphery of the support 71. As shown in Fig.

4 and 5, the earthquake-proof test process of the switchboard of the present invention is performed. The earthquake-detection sensor unit 10 detects earthquake-resistant data and drives the earthquake-proof mount 70 It is possible to effectively protect the switchboard from the seismic waves by operating the automatic return function of the controller 20. [

The embodiments of the present invention described in the present specification and the configurations shown in the drawings relate to the most preferred embodiments of the present invention and are not intended to encompass all of the technical ideas of the present invention so that various equivalents It should be understood that water and variations may be present. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments, and that various modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. , Such changes shall be within the scope of the claims set forth in the claims.

10: Seismic sensor part 20: Controller (MCU)
30: commercial power cutoff unit 40: 24V cutoff unit
50: Motor driver 60: Emergency power supply
70: Seismic mount

Claims (4)

An earthquake detection sensor unit for detecting earthquake-resistant data;
The seismic data is sampled and collected at regular intervals through the seismic sensor unit, and the earthquake is judged by comparing the maximum value and the minimum value. The control signal for each step is outputted according to the seismic intensity, A controller to control;
A commercial power cutoff unit for shutting off commercial power of 220 V under the control of the controller;
A 24V cutoff unit for shutting off the power of 24V under the control of the controller;
A motor driver for raising or lowering an earthquake-proof mount of the power transmission / And
And an emergency power supply charge / discharge unit charged with a commercial power supply of 220V at normal time and supplying emergency power to the controller in an emergency. The method according to claim 1,
The earthquake detection sensor unit
Wherein a three-axis acceleration sensor is applied. The method according to claim 1,
The controller
When the first stage earthquake is judged, the motor driver is driven to lower the earthquake-proof mount, the commercial power cut-off unit is driven to cut off the commercial power of 220V,
When the second stage earthquake is judged, the emergency power supply charge / discharge unit is driven, the emergency power supply is supplied, the 24V cutoff unit is operated to cut off the power of 24V,
Wherein when the earthquake is canceled in the second step, the motor driver is driven to raise the earthquake-proof mount, and the commercial power cut-off unit is released to supply 220V commercial power.
The method of claim 3,
The controller
Wherein the initial position value of the earthquake-proof mount is stored only with the emergency power supplied from the emergency-power-source collision-avoiding unit in all the power-off states.
KR1020150159885A 2015-11-13 2015-11-13 Switchgear Seismic Control System with auto-recovery function KR20170056334A (en)

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KR1020150159885A KR20170056334A (en) 2015-11-13 2015-11-13 Switchgear Seismic Control System with auto-recovery function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102353862B1 (en) * 2020-11-30 2022-01-24 주식회사 나산전기산업 Measurement and control panel having seismic isolation device for protecting electrical equipment from earthquake
KR102373504B1 (en) * 2021-08-05 2022-03-11 에너젠(주) Emergency generator system capable of earthquake resistance and predictive maintenance and control method tereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102353862B1 (en) * 2020-11-30 2022-01-24 주식회사 나산전기산업 Measurement and control panel having seismic isolation device for protecting electrical equipment from earthquake
WO2022114345A1 (en) * 2020-11-30 2022-06-02 주식회사 나산전기산업 Instrument control panel and building automation control panel comprising seismic mount for protecting facility to be protected from earthquakes
KR102373504B1 (en) * 2021-08-05 2022-03-11 에너젠(주) Emergency generator system capable of earthquake resistance and predictive maintenance and control method tereof

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