KR20190067539A - Dynamic voltage apparatus for monitoring and load appararus control - Google Patents

Abstract

The present invention relates to a momentary power failure compensation apparatus for monitoring and load apparatus control which can prevent or minimize damage to load facilities caused by an occurrence of a momentary power failure. The momentary power failure compensation apparatus for monitoring and load apparatus control comprises: a monitoring unit monitoring a driving state of a momentary power failure compensation apparatus; a communication unit performing communication with other terminals or load facilities through a wired and wireless communication method; and a control unit generating driving information by using data which is monitored from the monitoring unit and controlling the load facilities to transmit a driving control command through the communication unit upon immediate detection of a voltage drop from the monitoring unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus,

The present invention relates to an instantaneous power failure compensation apparatus for monitoring and controlling a load device.

Commercial AC power supplied to load equipment such as machine tools in the industrial field is very reliable, but power instability such as momentary power failure is often occurring. This momentary power failure can result in defects in the products produced by the load facility or disruption of production line operations, resulting in massive losses to the producers of the products.

The instantaneous power failure is caused by a short circuit in the power system, a lightning stroke, and a switching operation of a large capacity load facility. The power system generally has a duration of such an abnormal power quality condition of generally 1 sec or less, If the power failure persists, it shall be regarded as a permanent power failure and the operation of the load facility shall be stopped.

Most industrial equipment is designed to withstand instantaneous power failure due to mechanical properties and electrical inertia, but components such as relays, starters, microcontrollers, etc., It is often the case that the operation is stopped by a power failure occurring at the moment.

Therefore, a momentary power failure compensation device capable of continuously supplying AC power even when the power is momentarily disconnected in preparation for such a power failure has been developed and widely used.

In the instantaneous power failure compensating device, power is stored in advance in the charger in advance, and alternate power is continuously supplied to the load facility with the charging power of the charger when a short-time instantaneous power failure or voltage drop occurs, .

However, the instantaneous power failure compensating apparatus mainly serves to supply AC power to a load facility, and has a problem that it can not guide driving information according to the driving state of the instantaneous power failure compensating apparatus.

That is, the instantaneous power failure compensating apparatus can not display driving information such as information on the occurrence of instantaneous power failure, information on the state of charge of the capacitor, and the like by monitoring the input and output states of the AC power and displaying information thereon, There was a problem that it was difficult to quickly identify a problem situation and immediately implement a response to the problem.

One object of the present invention is that the instantaneous power failure compensating apparatus is designed to support external communication so that the user can confirm the driving information of the instantaneous power failure compensating apparatus through the display of another terminal other than the instantaneous power failure compensating apparatus.

Further, in the instant invention, when an instantaneous power failure occurs, a command for stopping the operation is sent to the load facility to immediately stop the operation of the load facility to prevent the failure of the load facility or to issue an instruction to drive the emergency generator The operation of the load facility can be stably performed.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

An instantaneous power failure compensating apparatus for monitoring and controlling a load device according to an embodiment of the present invention includes a monitoring unit for monitoring a driving state of an instantaneous power failure compensating apparatus; A communication unit for performing communication with another terminal or a load facility through a wired / wireless communication system; And a controller for generating drive information using the data monitored by the monitoring unit and controlling the drive unit to transmit a drive control command to the load facility through the communication unit as soon as the monitoring unit detects the voltage drop .

Here, the instantaneous power failure compensating apparatus for monitoring and controlling the load device may further include a display, and the controller may control the drive information to be displayed through the display.

Here, the communication unit may use at least one of communication methods such as RS-232, RS-485, USB, Ethernet, and digital I / O.

Here, the drive information may include a line status, an event history, a sag wave form, a parameter setting, and a setup information.

Here, the line state may include input / output state information, internal voltage state information of the instantaneous power failure compensating device, AC power state information, temperature inside the instantaneous power failure compensating device, and charge state information of the capacitor.

Here, the event history may include system state information including AC voltage input state information, DC power supply state information, capacitor charge state information, and inverter state information, as well as system state information including opening, storing, downloading, And file management information of the history.

Here, the instantaneous voltage drop waveform may include waveform data such as a graphical display supporting a graphic data drag function, an instantaneous voltage drop time, a storage time, And display data information such as instantaneous voltage drop intensity.

Here, the parameter setting may include charger condition setting, instantaneous voltage drop detection level setting, inverter condition setting, and limit value information.

Here, the setup information may include a comfort setting, a date and time setting, a rated voltage, and a data storage directory setting.

Here, the communication unit may communicate with the load facility using RS-232 communication at a distance, and the control unit may provide the drive information to a display provided in the load facility through the communication unit.

Here, the other terminal is a user terminal installed in a short distance, and the communication unit communicates with the user terminal using RS-232 communication in a short distance, and the control unit controls the display of the user terminal Information can be provided.

Here, the other terminal is a central management server computer located at a remote location, and the communication unit is connected to the network of the central management server computer via the Ethernet to communicate with the central management server computer, To provide the drive information to the display of the central management server computer.

Here, the control unit may control the load facility to issue a drive stop command or an emergency generator drive command via the communication unit as soon as a voltage drop occurs.

According to the present embodiment, since the instantaneous power failure compensating apparatus is designed to support a variety of external communications, even if the user is located at another location in the same building or at a remote location, the driving information of the instantaneous power failure compensating apparatus It can be grasped through the display of the other terminal.

In addition, when the instantaneous power failure occurs, the instantaneous power failure compensating device transmits the drive command immediately to the load facility, so that the response to the instantaneous power failure can be promptly performed, thereby preventing or minimizing the damage of the load facility due to the instantaneous power failure .

1 is a block diagram illustrating an electronic configuration of an instantaneous power failure compensating apparatus according to an embodiment of the present invention.
2 is a block diagram showing the connection between the instantaneous power failure compensating apparatus and the load facility according to the embodiment of the present invention.
3 is a block diagram illustrating a connection between an instantaneous power failure compensating apparatus and a user terminal according to an embodiment of the present invention.
4 is a block diagram illustrating the connection between the instantaneous power failure compensating apparatus and the central management server computer according to an embodiment of the present invention.
FIGS. 5 and 6 are diagrams illustrating an operation of the instantaneous power failure compensating apparatus according to another embodiment of the present invention to issue an on / off drive command to the load facility during instantaneous power failure.
FIG. 7 and FIG. 8 are diagrams illustrating an operation in which the instantaneous power failure compensating apparatus according to another embodiment of the present invention issues an on / off drive command to an emergency generator of a load facility during an instantaneous power failure.
9 is a view for explaining a method of displaying R, S and T by a controller according to an embodiment of the present invention.
10 is a view for explaining a method of displaying a driving mode by a controller according to an embodiment of the present invention.
11 is a view for explaining an instantaneous power failure compensating apparatus having an inrush current blocking function and an overload blocking function according to an embodiment of the present invention.
FIGS. 12 to 15 are diagrams for explaining a method of driving the instantaneous power failure compensating apparatus having the inrush current blocking function and the overload blocking function according to the first embodiment of the present invention.
FIGS. 16 through 19 are diagrams for explaining a method of driving an instantaneous power failure compensating apparatus having an inrush current blocking function and an overload blocking function according to a second embodiment of the present invention.

Hereinafter, an instantaneous power failure compensating apparatus for monitoring and controlling a load device according to a preferred embodiment of the present invention (hereinafter referred to as instantaneous power failure compensating apparatus) will be described in detail with reference to the accompanying drawings. In the present specification, different embodiments are given the same or similar reference numerals, and the description thereof is replaced with the first explanation.

1 is a block diagram illustrating an electronic configuration of an instantaneous power failure compensating apparatus according to an embodiment of the present invention. 1, the instantaneous power failure compensating apparatus 100 may include a monitoring unit 110, a communication unit 130, a controller 150, a voltage compensating unit 170, and a display 190.

The monitoring unit 110 may monitor the driving state of the instantaneous power failure compensating apparatus 100. [ For example, the monitoring unit 110 may monitor whether a voltage drop occurring in the instantaneous power failure compensating apparatus 100 is lower than a preset voltage. In addition, the monitoring unit 110 determines whether or not abnormality related to all the information related to the driving state of the instantaneous power failure compensating apparatus 100, such as the input / output state of the AC power, the temperature of the instantaneous power failure compensating apparatus 100, Can be monitored.

The communication unit 130 can use a wired / wireless communication scheme. Here, the communication unit 130 can perform communication between the instantaneous power failure compensating apparatus 100 and the load facility 200 using at least one of the above-described wire / wireless communication methods. In addition, the communication unit 130 may perform communication between the user terminal 300 and other terminals such as the central management server computer 400. At this time, the communication unit 130 can use a communication method such as RS-232, RS-485, USB, Ethernet, and digital I / O.

RS-232 communication is one of the serial interfaces connecting PCs, acoustic couplers, and modems. Peripheral devices such as cable organization, terminal printer, and plotter for asynchronous transmission, which are mainly used in microcomputer systems, It is a way to connect and communicate data.

RS-485 communication is a half-duplex communication method that can not transmit and receive at the same time, has a long data transmission distance, and is a communication method capable of long-distance transmission of data.

Ethernet communication is a system that forms a network with several computers. The computer to send data is first checked with an electrical signal whether or not the communication network is in use. Then, when the communication network is empty, data is transmitted. And then sends the data again.

The digital I / O is a communication method that outputs only a 1 or 0 signal to an external device in response to an event such as a momentary power failure, thereby confirming only a very simple state of the instantaneous power failure compensating device 100.

The control unit 150 may be connected to the respective components included in the instantaneous power failure compensating apparatus 100 and may control the respective components.

The control unit 150 may generate driving information using the data monitored by the monitoring unit 110. [ Here, the driving information may include an event history, a sag wave form, a parameter setting, and a setup information.

The line status includes input / output status information, internal use voltage status information of the instantaneous power failure compensating apparatus 100, AC power status information, temperature inside the instantaneous power failure compensating apparatus 100, and charge state information of the capacitor .

Specifically, the input / output status information may represent a phase display on each of R, S, and T of the AC power input / output, and on each of R, S, and T of the AC power input and current display. The internal operating voltage state of the instantaneous power failure compensating apparatus 100 can be represented by 15V voltage, 15V current, 5V current, and 3.3V current. The temperature of the instantaneous power failure compensating apparatus 100 may indicate internal temperature monitoring information. The charge state information of the capacitor may indicate the charge voltage.

The event history includes AC power input state information on R, S, and T, DC power supply state information indicating a voltage state inside the instantaneous power failure compensating apparatus 100, capacitor charge state information indicating an abnormality of the charge voltage And system status information having inverter status information indicating an inverter operable status, and file management information of stored history such as opening, storing, downloading and evaluating (Expert).

Voltage drop waveforms include display data information such as instantaneous voltage drop waveform data, such as a graphical display that supports the Graphics Data Drag Function, and instantaneous voltage drop time, storage time, and instantaneous voltage drop intensity. can do.

The parameter setting can include charger condition setting, instantaneous voltage drop detection level setting, n_View Display Value Offset, inverter condition setting, and limit value information.

Specifically, the net indirect drop detection level setting can indicate instantaneous value and RMS type information. n_view The display value offset can represent the voltage and current during the input and output. The inverter condition setting can indicate the compensation time, the upper and lower range of the compensation value, and the compensation current limit value. The limit value information can be represented as Safety and Safety 2, and Safety can include the phase compensation voltage type limit value, phase anomaly detection limit value, compensation current limit value information, and Safety 2 can include the product internal temperature limit value information.

The setup information may include a port number, an address, a comfort setting indicating the communication status, a date and time setting, a rated voltage, an access password setting for the n_view application, and a data storage directory setting .

The control unit 150 may display an icon through the display unit using an icon for recognizing the driving mode of the instantaneous power failure compensating apparatus.

The control unit 150 will be described in detail with reference to FIGS. 2 to 10 below.

The voltage compensating unit 170 may be located in the instantaneous power failure compensating apparatus 100 as a configuration for compensating for a voltage when an instantaneous voltage drop occurs. Here, the voltage compensating unit 170 can compensate the voltage applied to the load facility 200. [ For example, the voltage compensating unit 170 allows the AC power to be continuously supplied to the load facility with the charging power of the charging unit when a failure such as a momentary power failure or a voltage drop occurs for a short time, .

The display unit 190 may display the driving information described above by the control unit 150. [ Here, the display 190 may be located in the instantaneous power failure compensating apparatus 100 itself, and the user may confirm the driving information of the instantaneous power failure compensating apparatus 100 through the display 190. [

2 is a block diagram showing the connection between the instantaneous power failure compensating apparatus and the load facility according to the embodiment of the present invention.

Referring to FIG. 2, the instantaneous power failure compensating apparatus 100 can supply the input AC power to the load facility 200.

The load facility 200 may include a display 210.

The communication unit 130 can communicate with the load facility 200 using RS-232 communication. The RS-232 communication is merely an embodiment, and the communication method can be variously applied.

The control unit 150 may transmit driving information to the load facility 200 through the communication unit 130 using RS-232 communication. The load facility 200 may display the drive information received from the controller 150 on the display 210 of the load facility 200.

With this configuration, the user can check the driving information of the instantaneous power failure compensating apparatus 100 received by the control unit 150 through the display 210 of the load facility 200 in real time, .

3 is a block diagram illustrating a connection between an instantaneous power failure compensating apparatus and a user terminal according to an embodiment of the present invention.

Referring to FIG. 3, the instantaneous power failure compensating apparatus 100 can supply the input AC power to the load facility 200.

The user terminal 300 may be any terminal capable of RS-232 communication in a short distance from the instantaneous power failure compensating apparatus 100. [ Here, the user terminal 300 may include a display 310. For example, the user terminal 300 may be a terminal capable of RS-232 communication such as a desktop, a notebook, a tablet, and a PDA.

The communication unit 130 can communicate with the user terminal 300 using RS-232 communication. The RS-232 communication is merely an embodiment, and the communication method can be variously applied.

The control unit 150 may transmit driving information to the user terminal 300 through the communication unit 130 using RS-232 communication. The user terminal 300 may display the driving information received from the controller 150 on the display 310 of the user terminal 300. [

With this configuration, the user does not have to move to the position where the instantaneous power failure compensating apparatus 100 or the load facility 200 exists to check the driving state of the instantaneous power failure compensating apparatus 100, .

4 is a block diagram illustrating the connection between the instantaneous power failure compensating apparatus and the central management server computer according to an embodiment of the present invention.

Referring to FIG. 4, the instantaneous power failure compensating apparatus 100 can supply the input AC power to the load facility 200.

The central management server computer 400 may be a customer's terminal located at a remote location. Here, the central management server computer 400 may include a display 410, and a network 430.

The communication unit 130 can access the network 430 of the central management server computer 400 through Ethernet. Ethernet is merely an example, and various methods for performing communication with a remote terminal can be applied. Here, the communication unit 130 can communicate with the central management server computer 400 through the connection with the network 430. [

The control unit 150 can transmit driving information to the central management server computer 400 through the communication unit 130 using Ethernet communication. The central management server computer 400 may display the driving information received from the control unit 150 on the display 410 of the central management server computer 400. [

According to this configuration, the driving information of the instantaneous power failure compensating apparatus 100 can be remotely checked by the central management server computer 400 of the customer even when the user is at a remote location.

FIGS. 5 and 6 are diagrams illustrating an operation of the instantaneous power failure compensating apparatus according to another embodiment of the present invention to issue an on / off drive command to the load facility during instantaneous power failure.

Referring to FIG. 5, when the instantaneous power failure compensating apparatus 100 continuously supplies AC power to operate the load facility 200, the load facility 200 can maintain the On state.

Referring to FIG. 6, the communication unit 130 of the instantaneous power failure compensating apparatus 100 can communicate with the load facility 200 using a contact-type signal when a voltage drop occurs.

The control unit 150 of the instantaneous power failure compensating apparatus 100 may control to transmit an operation stop command to the load facility 200 through the communication unit 130 as soon as the voltage drop occurs.

When the downtime command is received from the instantaneous power failure compensating apparatus 100, the load facility 200 can immediately turn off the power to stop the operation.

With this configuration, it is possible to prevent the occurrence of a failure due to an error or malfunction occurring in the load facility 200 due to the instantaneous power failure by immediately stopping the load facility 200 when an instantaneous voltage drop occurs.

FIG. 7 and FIG. 8 are diagrams illustrating an operation in which the instantaneous power failure compensating apparatus according to another embodiment of the present invention issues an on / off drive command to an emergency generator of a load facility during an instantaneous power failure.

Referring to FIGS. 7 and 8, the load facility 200 may be connected to an emergency generator 230 that supplies alternative power when the supply of commercial power is interrupted.

Referring to FIG. 7, when the instantaneous power failure compensating apparatus 100 continuously supplies AC power to operate the load facility 200, the emergency generator 230 can maintain the off state.

Referring to FIG. 8, the communication unit 130 of the instantaneous power failure compensating apparatus 100 can communicate with the load facility 200 using a contact-type signal when a voltage drop occurs.

The control unit 150 of the instantaneous power failure compensating apparatus 100 may control the load facility 200 to transmit a drive command for activating the emergency generator 230 via the communication unit 130 as soon as the voltage drop occurs.

When the downtime command is received from the instantaneous power failure compensating apparatus 100, the load facility 200 can control so that the emergency generator 230 is immediately turned on. Accordingly, the emergency generator 230 can supply alternate power to the load facility 200, so that the load facility 200 can be continuously supplied with electric power.

With this configuration, when the power supply to the load facility 200 is unstable due to the instantaneous power failure or the power failure, the emergency generator 230 is activated to maintain the power supply, so that the stable operation of the load facility 200 can be achieved.

9 is a view for explaining a method of displaying R, S and T by a controller according to an embodiment of the present invention.

Referring to FIGS. 1 and 9, the controller 150 may generate driving information using the data monitored by the monitoring unit 110. FIG.

The controller 150 may display the phases of the R, S, and T phases of the input AC power on the user interface screen. Thus, the phase of each of the R, S, and T phases of the input AC power can be easily confirmed on the user interface screen, so that the administrator can easily optimize the equipment state at initial installation based on such information.

10 is a view for explaining a method of displaying a driving mode by a controller according to an embodiment of the present invention.

Referring to FIGS. 1 and 10, the controller 150 may display an input cutoff mode 1000, a bypass mode 1010, a capacitor charging mode 1020, and an inverting mode 1030 on a user interface screen.

The controller 150 may configure a user interface including an arrow connected from the input side to the load side, an arrow connected from the input side to the AC / DC converter side, an arrow connected from the AC / DC converter side to the load side, an AC / DC converter, and a capacitor.

The input cutoff mode 1000 means that the input voltage is cut off. The control unit 150 may display an icon indicating blocking on an arrow connected from the input side to the load side.

The bypass mode 1010 indicates a state where the input voltage is bypassed and output to the load. The control unit 150 may display an icon indicating the passage from an input side to an arrow connected to the load side and may not display an arrow connected from the input side to the AC / DC converter side.

The capacitor charging mode 1020 refers to a state in which a capacitor is charged by applying an input voltage to a capacitor. The control unit 150 may display an icon indicating passage on an arrow connected from the input side to the load side and may display an arrow connected from the input side to the AC / DC converter side.

The inverting mode 1030 is a state in which the input voltage is cut off, the voltage charged in the capacitor is inverted, and the voltage is output. The controller 150 displays an icon indicating blocking on the arrow connected to the load side from the input side and an icon indicating the arrow passing through the load side on the AC / DC converter side.

In this manner, the controller 150 displays the current drive mode on the user interface so that the administrator can easily understand the current drive mode, so that the manager intuitively grasps the current drive mode.

11 is a view for explaining an instantaneous power failure compensating apparatus having an inrush current blocking function and an overload blocking function according to an embodiment of the present invention.

11, the instantaneous power failure compensating apparatus 2100 having an inrush current cutoff function and an overload cutoff function includes an input CB 2110, a voltage drop detection unit 2120, a contactless switch 2130, an output CB 2140, A protection unit 2150, an overload detection unit 2160, a transformer 2170, a power conversion unit 2180, a charging unit 2190, a bypass CB 2200 and a control unit 2210. In this embodiment, the instantaneous power failure compensation module having the inrush current cut-off function and the overload cut-off function means a module composed of the protection unit 2150 and the control unit 2210.

An input CB (Circuit Breaker) 2110 can receive commercial AC power.

The voltage drop detection unit 2120 is connected to the rear end of the input CB 2110, and can detect the voltage drop of the commercial AC power.

The solid state switch 2130 can switch the commercial AC power to a non-contact point.

An output CB (Circuit Breaker) 2140 can supply commercial AC power to the load.

The protection unit 2150 may be connected between the input node to which the commercial AC power is input and the power conversion unit 2180. In this embodiment, the protection unit 2150 may be connected between the non-contact switch 2130 and the overload detection unit 2160. However, this is merely an example, and the protection unit 2150 may be connected between the power conversion unit 2180 and the input node to which the commercial AC power is input in any form.

The protection portion 2150 may include a limiting portion 2151, a first blocking switch 2152, and a second blocking switch 2153. The first cutoff switch 2152 and the second cutoff switch 2153 are constituted by a physical switch including a magnetic contactor or the like and constituted by a contactless switch including a thyristor (SCR) and a triac (TRIAC) .

The limiter 2151 may restrict the input of a part of the external AC power to the power converter 2180 in order to limit the inrush current that may be generated in the charging section 2190 during the initial charging. For example, the limiter 2151 may be composed of a resistor, a thermistor, or the like, and may restrict the input of only 70% of the commercial AC power to the power converter 180. As described above, it is possible to block the generation of the inrush current by preventing all of the alternating-current power from being converted into the direct-current power at the initial stage of charging and preventing the charging unit 2190 from being charged.

When charging is started in a state where the charging power of the capacitor included in the charging part 2190 is 0 ('initial state'), infinite inrush current is generated for a short time. If such an inrush current is not controlled, problems such as generation of resonance noise in the transformer 2170 and circuit damage of the inverter 2182 arise due to the overcurrent.

The first cutoff switch 2152 and the second cutoff switch 2153 can change the flow of the AC power by the control unit 2210. A detailed description thereof will be described in detail in Figs. 12 to 19 below.

The overload detection unit 2160 may be connected between the protection unit 2150 and the power conversion unit 2180. For example, the overload detection section 2160 may be connected between the protection section 2150 and the transformer 2170, or between the transformer 2170 and the power conversion section 2180.

The overload detecting unit 2160 can sense the current value of the load AC power when the charging power charged in the charging unit 2180 is converted into AC power for load and output to the load.

The transformer 2170 can convert the AC power for the load into an output power suitable for the load.

The power conversion section 2180 may include a converter 2181 for converting AC power into DC power and an inverter 2182 for converting DC power to AC power.

The converter 2181 can convert AC power output from the solid state switch 2130 into DC power. The converted DC power is charged to the charging unit 2190.

The inverter 2182 can convert the DC power (" charge power ") charged in the charger 2190 into the AC power for the load. The AC power for the load is output to the load through the output CB 2140.

The charging unit 2190 can charge the DC power inputted from the power converting unit 2180. [ For example, the charger 2190 may be implemented as a plurality of supercapacitors connected in series.

The bypass CB 2200 may be coupled between the commercial AC power input node and the load. The bypass CB 2200 can bypass the input commercial AC power according to the situation and output it to the load.

When the instantaneous power failure compensating device is to be checked and the AC power is to be separated from the system supplied to the load, the operator turns on the bypass CB 2200 so that the external AC power flows through the bypass CB 2200 to the load .

In this state, the AC power is not input to the input CB 2110, and the output CB 2140 is separated from the load, so that the instantaneous power failure compensator of the present invention can be safely checked.

The monitoring unit (not shown) may monitor whether each of the plurality of supercapacitors provided in the charger 2190 is charged with an overvoltage exceeding a predetermined voltage.

The charging voltage detector (not shown) can detect the entire voltage charged in the charger 2190.

The control unit 2210 may be connected to each component included in the instantaneous power failure compensating apparatus 2100 having an inrush current shutoff function and an overload shutoff function, and may control the respective components.

Based on the signal detected by the voltage drop detector 2120, the controller 2210 can determine whether a voltage drop has occurred in the external AC power. If no voltage drop has occurred, the control unit 2210 controls the non-contact switch 2130 so that the AC power can be output normally.

For example, the non-contact switch 2130 is constituted by a semiconductor switching element performing a switching operation at a non-contact point, and the controller 2210 can turn on the semiconductor switching element to allow AC power to pass therethrough. AC power input through the input CB 2110 is supplied to the load through the voltage drop detection unit 2120, the non-contact switch 2130, and the output CB 2140 in sequence.

The control unit 2210 controls the protection unit 2150 so that the alternating-current power can pass through the limiting unit 2151 at the initial stage of charging in order to limit the inrush current that may be generated when the charging unit is initially charged, The protection unit 2150 can be controlled so that the AC power does not pass through the restriction unit 2151. [

The control unit 2210 can control the protection unit 2150 so that the AC power for load flowing to the load is cut off when an overload occurs when the charging power of the charging unit 2190 is converted into AC power for load and output to the load . A detailed description thereof will be described in detail in Figs. 12 to 19 below.

The control unit 2210 determines whether or not the DC power is fully charged to the charging unit 2190 based on the charging voltage value detected by the charging voltage detecting unit (not shown).

The control unit 2210 controls the converter 2181 of the power converting unit 2180 to convert the AC power into DC power and supplies the converted DC power to the charger 2180. [ 2190). The converted direct current power can be charged to the charger 2190.

In this way, the control unit 2210 determines whether or not the DC power is fully charged to the charging unit 2190, and controls the charging unit 2190 to prevent the overvoltage from being charged by stopping the converter 2181 when the DC power is fully charged.

The controller 2210 turns off the non-contact switch 2130 when it is determined that the voltage drop of the external AC power is generated based on the detection signal in the voltage drop detector 2120. The controller 2210 operates the inverter 2182 to perform a power compensation operation. That is, the inverter 2182 converts the charging power of the charging unit 2190 into the AC power for the load according to the control of the control unit 2210 and supplies the converted AC power for the load to the transformer 2170, the overload detecting unit 2160, Can be output to the load through the protection unit 2150 and the output CB 2140. Through this, the control unit 2210 can proceed with the power compensation process.

The instantaneous power failure compensating apparatus having the inrush current blocking function and the overload blocking function can prevent the instantaneous power failure compensating apparatus and the load equipment from being broken by blocking the generation of the inrush current generated in the charging unit at the initial charging by using the protection unit.

In addition, the instantaneous power failure compensating apparatus having the inrush current cut-off function and the overload cut-off function effectively blocks the overload generated when the charging power of the charging unit is converted into the AC power for the load and outputted to the load, And destruction can be prevented.

FIGS. 12 to 15 are diagrams for explaining a method of driving the instantaneous power failure compensating apparatus having the inrush current blocking function and the overload blocking function according to the first embodiment of the present invention.

11 and 12, the instantaneous power failure compensating apparatus 2100 controls the AC power to flow through the input CB 2110, the voltage drop detecting unit 2120, the contactless switch 2130, and the output CB 2140 do.

In this embodiment, the protection unit 2150 may include a limiting unit 2151 and a first blocking switch 2152.

The instantaneous power failure compensating apparatus 2100 may control the first cutoff switch 2152 to be turned off at the beginning of charging so that the alternating current power can pass through the limiting unit 2151. [ The AC power flows through the restriction section 2151 so that only the AC power is charged to the charging section 2190. [ By doing so, only a part of the AC power is inputted to the charging unit 2190, so that the generation of the inrush current can be blocked.

11 and 13, the instantaneous power failure compensating device 2100 is controlled such that when the voltage set in the charging part 2190 is charged or the set time elapses after the start of charging, the first blocking switch 2152 is turned on can do. In this case, the AC power is inputted to the charging unit 2190 through the first blocking switch 2152. [ Accordingly, the alternating-current power can be charged to the charging unit 2190 without power loss as compared with the case of flowing through the limiting unit 2151. [

When the charging unit 2190 is charged with a certain voltage, no inrush current is generated. Therefore, if the instantaneous power failure compensating apparatus 2100 satisfies a certain condition ('set time or more after charging or charging'), By turning on the cut-off switch 2152, most of the alternating-current power can be charged into the charger 2190 without loss of the alternating-current power.

11 and 14, when it is determined that the voltage drop of the external AC power is generated based on the detection signal in the voltage drop detector 2120, the instantaneous power failure compensating apparatus 2100 switches the non-contact switch 2130 Off.

The instantaneous power failure compensating apparatus 2100 operates the inverter 2182 to perform a power compensation operation. In other words, the inverter 2182 converts the charging power of the charging unit 2190 into the load AC power under the control of the control unit 2210 and supplies the converted load AC power to the transformer 2170, the overload detecting unit 2160, 1 cutoff switch 2152 and output CB 2140 to the load. Through this, the control unit 2210 can proceed with the power compensation process.

11 and 15, the instantaneous power failure compensating apparatus 2100 converts the charging power of the charging unit 2190 into the AC power for the load and outputs the AC power to the load. When an overload occurs, the first switching switch 2152 Off so that the AC power for the load is prevented from flowing to the load. The instantaneous power failure compensating apparatus 2100 can also prevent the other components from being broken by controlling the power converting unit 2180 to stop driving in addition to turning off the first disconnecting switch 2152 .

The instantaneous power failure compensating apparatus 2100 can go back to the previous power compensation process when the overload does not occur and the normal current is returned.

FIGS. 16 through 19 are diagrams for explaining a method of driving an instantaneous power failure compensating apparatus having an inrush current blocking function and an overload blocking function according to a second embodiment of the present invention.

11 and 16, the instantaneous power failure compensating apparatus 2100 controls the AC power to flow through the input CB 2110, the voltage drop detecting unit 2120, the contactless switch 2130, and the output CB 2140 do.

In this embodiment, the protection unit 2150 may include a limiting unit 2151, a first blocking switch 2152, and a second blocking switch 2153.

The instantaneous blackout compensator 2100 controls the first cutoff switch 2152 to be turned off at the beginning of charging and controls the second cutoff switch 2153 to be turned on so that the alternating- It is possible to pass through the restriction portion 2153 and the restriction portion 2151. The AC power flows through the restriction section 2151 so that only the AC power is charged to the charging section 2190. [ By doing so, only a part of the AC power is inputted to the charger 2190, so that the generation of the inrush current can be blocked.

11 and 17, the instantaneous power failure compensating device 2100 is controlled such that when the voltage set in the charging part 2190 is charged or the set time elapses after the start of charging, the first blocking switch 2152 is turned on And controls the second cutoff switch 2153 to be turned off. In this case, AC power is input to the charging unit 2190 through the first blocking switch 2152, and the second blocking switch 2153 is not passed. Accordingly, the alternating-current power can be charged to the charging unit 2190 without power loss as compared with the case of flowing through the limiting unit 2151. [

When the charging unit 2190 is charged with a certain voltage, no inrush current is generated. Therefore, if the instantaneous power failure compensating apparatus 2100 satisfies a certain condition ('set time or more after charging or charging'), Most of the AC power can be charged into the charger 2190 without turning off the AC power by turning on the cutoff switch 2152 and turning off the second cutoff switch 2153. [

11 and 18, when it is determined that the voltage drop of the external AC power is generated based on the detection signal in the voltage drop detector 2120, the instantaneous power failure compensating device 2100 switches the non- Off.

The instantaneous power failure compensating apparatus 2100 operates the inverter 2182 to perform a power compensation operation. In other words, the inverter 2182 converts the charging power of the charging unit 2190 into the load AC power under the control of the control unit 2210 and supplies the converted load AC power to the transformer 2170, the overload detecting unit 2160, 1 cutoff switch 2152 and output CB 2140 to the load. Through this, the control unit 2210 can proceed with the power compensation process.

11 and 19, the instantaneous power failure compensating apparatus 2100 converts the charging power of the charging unit 2190 into AC power for the load and outputs the AC power to the load. When an overload occurs, the first interception switch 2152 Off to prevent the AC power for the load from flowing to the load side. In addition, the AC power for the load is prevented from flowing to the load side through the restriction portion 2151 because the second cutoff switch 2153 is turned off. The instantaneous power failure compensating apparatus 2100 can also prevent the other components from being broken by controlling the power converting unit 2180 to stop driving in addition to turning off the first disconnecting switch 2152 .

The instantaneous power failure compensating apparatus 2100 can go back to the previous power compensation process when the overload does not occur and the normal current is returned.

The embodiments described may be constructed by selectively combining all or a part of each embodiment so that various modifications can be made.

It should also be noted that the embodiments are for explanation purposes only, and not for the purpose of limitation. In addition, it will be understood by those of ordinary skill in the art that various embodiments are possible within the scope of the technical idea of the present invention.

100: Instantaneous power failure compensation device
110: monitoring unit 130: communication unit
150: control unit 170: voltage compensation unit
190: Display
200: load facility 210: display of load facility
230: emergency generator
300: user terminal 310: display of the user terminal
400: Central Management Server computer
410: Display on the Central Management Server computer
430: Network

Claims (13)

A monitoring unit for monitoring a driving state of the instantaneous power failure compensating apparatus;
A communication unit for performing communication with another terminal or a load facility through a wired / wireless communication system; And
And a controller for generating drive information using the data monitored by the monitoring unit and controlling the drive unit to transmit a drive control command to the load facility through the communication unit as soon as the voltage drop is detected by the monitoring unit, Instantaneous power failure compensation device for load device control.
The method according to claim 1,
Further comprising a display,
Wherein,
And controls the drive information to be displayed through the display.
The method according to claim 1,
Wherein,
Wherein at least one of communication methods such as RS-232, RS-485, USB, Ethernet, and digital I / O is used.
The method according to claim 1,
The drive information may include:
Instantaneous power failure for monitoring and load device control, including line status, event history, sag wave form, parameter setting, and setup information. Compensation device.
5. The method of claim 4,
The line state may include:
An input / output state information, an instantaneous power failure compensating device internal operating voltage state information, an AC power state information, a temperature inside the instantaneous power failure compensating device, and a charge state information of a capacitor.
5. The method of claim 4,
The event history includes:
System state information including AC voltage input state information, DC power supply state information, capacitor charge state information, and inverter state information, and file management information of stored history such as open, save, download, and empathy Monitoring, and load device control.
5. The method of claim 4,
The instantaneous voltage drop waveform may comprise a voltage drop,
Sag Wave Form Data, such as a graphical display that supports the Graphics Data Drag Function, and display data information such as instantaneous voltage drop time, storage time, and instantaneous voltage drop Monitoring, and load device control.
5. The method of claim 4,
In the parameter setting,
Instantaneous power failure compensator for monitoring and load device control, including charger condition setting, instantaneous voltage drop detection level setting, inverter condition setting, limit value information.
5. The method of claim 4,
The set-
The instantaneous power failure compensator for monitoring and load device control, including comfort settings, date and time settings, rated voltage, and data storage directory settings.
The method according to claim 1,
Wherein,
Communicating with the load facility using RS-232 communication in close proximity,
Wherein,
And provides the drive information to a display provided in the load facility through the communication unit.
The method according to claim 1,
The other terminal,
A user terminal installed in a short distance,
Wherein,
Communicating with the user terminal using RS-232 communication in close proximity,
Wherein,
And provides the drive information to the display of the user terminal through the communication unit.
The method according to claim 1,
The other terminal,
It is the central administration server computer located remotely,
Wherein,
Wherein the central management server computer is connected to the network of the central management server computer through the Ethernet and communicates with the central management server computer,
Wherein,
And provides the drive information to the display of the central management server computer through the communication unit.
The method according to claim 1,
Wherein,
And controls the load facility to issue an operation stop instruction or an emergency generator drive instruction via the communication unit as soon as a voltage drop occurs.

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