KR101435328B1 - Real time blackout protection system using artificial load control - Google Patents

Abstract

The present invention relates to a system to prevent a blackout in real time through intelligent load amount control. The system includes a load amount monitoring unit which monitors power consumption data of an individual load branched from a panel board of a customer; a relay which blocks or restores power injected to the individual load; and a monitoring control device which analyzes the power consumption data of the individual load through the load amount monitoring unit, and controls the relay if abnormality occurs in the individual load or according to the power reserve margin data received from the server of a power control management agency that oversees the power network. According to the present invention, when a step control signal, in which reference values for power consumption by customer are defined in power control management agencies such as KEPCO and Korea Power Exchange, is received in the monitoring control device installed in the panel board of each customer, loads are controlled to lower power consumption in order to set priorities. Therefore, a blackout, which is a large-scale power failure that can happen when power supply cannot follow the total power consumption, can be prevented.

Description

[0001] The present invention relates to a real time blackout prevention system using intelligent load control,

The present invention relates to a real-time blackout prevention system through intelligent load control, more specifically, to prevent a blackout, which is a large-scale power outage, by securing an insufficient power reserve ratio in a power crisis during the summer and the summer due to shortage of electricity supply and demand And more particularly, to a system capable of monitoring and controlling a load of a customer in real time according to a schedule in order to efficiently operate the power at a peak time or a shortage of reserve power.

In general, a distribution board installed in a customer is also referred to as an electric distribution board or an electric distribution board. In a conventional distribution board, only an electric breaker is provided to cut off electric power from the power supply when an overcurrent or a leakage current flows.

Such a conventional distribution panel is used for the purpose of shunting the electric wire, and it is only possible to perform a simple operation in which the electric breaker is turned on or off, so that the abnormality (malfunction or minor movement) In addition, since there is no display function, it is impossible to know the overload state or the short circuit state of the load side line and the function of predicting or notifying the load side line is not provided. none. In addition, the conventional distribution panel does not have the function of transmitting the information about the operation of the electric breaker, so that it is impossible to monitor whether or not the safety operation is performed at a remote place.

Of course, it is also possible to supplement the distribution panel provided with such a simple electric circuit breaker to monitor the power state supplied to the customer, and if the abnormal state such as a short circuit, an overload or a power failure occurs or a possibility is high, A distribution state monitoring device capable of generating an alarm to be able to generate a warning is proposed as a utility model application No. 20-2000-17114. However, when an abnormal condition such as a short circuit, an overload or a power failure occurs or the possibility becomes high, the power state signal detector senses it and drives the status indicator to generate an alarm that the user of the customer can recognize by visual or auditory So that they can respond. However, such a configuration causes an alarm due to an abnormal state such as a short circuit, an overload, or a power failure, so that most users, who are unprofessional in the power system, must directly check the abnormal state.

Furthermore, in the case of a nighttime office or a house of a daytime in which the user does not always live, there is a problem that control of the distribution board is impossible even if an alarm occurs.

On the other hand, in order to secure a sufficient power reserve ratio in the power crisis in the winter and summer due to shortage of electricity supply and demand, it is necessary to appropriately and promptly shut down and restore the electric power customer load in order to prevent blackout, which is a major power outage. In the case of an ordinary distribution panel to be applied, most of them are provided with only an electric circuit breaker, which is automatically shut off when an abnormality such as a short circuit or an overload occurs, but there is a problem that automatic restoration is impossible.

In addition, such a simple distribution board can not actively cope with other power supply and demand measures due to the increase in electric power demand due to the rapid increase in use of air conditioners and electric heaters, and can not systematically perform seasonal load management when power peaks occur in summer or winter .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for reducing power consumption in a power- The power consumption can be lowered step by step or the load power can be automatically shut off and restored.

It is another object of the present invention to provide a relay for each load, which can automatically detect the abnormality of the load current by the built-in control algorithm, individually block individual loads, In order to secure the insufficient reserve power by utilizing the power of the time zone during the daytime, the peak time, or the emergency occurrence of the reserve power shortage, the control of the individual relays according to the total power consumption is performed using the schedule function according to the peak power control algorithm And the electric power of each customer can be lowered by efficiently using the electric power by cutting off electric power at unnecessary time.

In order to solve such a technical problem,

Load monitoring means for monitoring power consumption information of an individual load branching at a distribution board of a customer, relay for shutting off or restoring power input to the individual load, and power consumption information of the individual load monitored through the load monitoring means And a monitoring control device for controlling the relay in accordance with information on a power reserve ratio received from a server of a power control management institution which generates an error on the individual load side or monitors the power network. Blackout prevention system.

At this time, the load monitoring means includes a meter CT for detecting a load current supplied to an individual load of the customer, a meter transformer PT for measuring a load voltage of the individual load, (ZCT).

And a load transformer is further provided on the load side line of the distribution board, the load transformer being capable of adjusting the voltage under the control of the monitoring and controlling device.

The monitoring control device includes a communication unit that receives information on the power reserve ratio from a server of a power control management organization that monitors a power network, and a power monitoring unit that analyzes the load voltage, current, and leakage current monitored by the load monitoring unit And an arithmetic and control unit for calculating the power consumption of the individual load and controlling the relay in accordance with the information about the power reserve ratio which occurs in the individual load or inputted through the communication unit.

In particular, if the load current detected by the load monitoring means is greater than a set trip value, the arithmetic and control unit first trips the relay, restores the relay after a predetermined time elapses, re- If the load current detected by the car is an abnormal current, trips the relay by a second order to cut off the load current, and transmits the distribution panel abnormality information to the server of the power control management institution of the remote site through the communication unit.

Further, the monitoring control apparatus calculates the total usable power consumption and the remaining power consumption, to which the progressive agent charge is not applied, and displays the total usable power consumption and the remaining power amount as display means.

In addition, the surveillance control device is characterized in that it receives switching board control information from a smart phone, a tablet PC, or a home PC, which is a user's portable terminal, and controls the opening and closing of the relay.

The monitoring control device analyzes the power consumption information inputted from the load monitoring means for monitoring the individual loads and judges the power consumption as standby power if there is no change for a predetermined period of time to control the relays of the individual loads to shut off the supplied power .

In addition, the distribution board is provided with a battery capable of being charged with power, and a switching switch for switching charging and discharging of the battery so as to be selectively controlled by the monitoring control device. In the night time zone, And controls the switching device so that the battery is discharged when a time, a peak time, or an emergency occurs due to a shortage of the standby power.

In addition, when the power reserve ratio information including the stepwise control signal is received, the monitoring control device controls the load transformer firstly until the power reserve ratio is secured according to the stepwise control signal, And controls a plurality of relays by opening and closing a plurality of relays in a second order according to a set priority order so as to control the input power for each load.

According to the present invention, when a step-by-step control signal that sets a reference value of power consumption per customer by a power control management institution such as KEPCO is received by a monitoring control device provided in a distribution panel of each customer, the load is prioritized and sequentially consumed By controlling the power to be lowered, it is possible to prevent blackout, which is a large-scale power outage, which may occur when the power supply can not be supplied to the total power demand.

In addition, the present invention not only lowers power consumption in an emergency situation but also monitors power demand according to a peak power control algorithm built in the monitoring control device and incorporates a schedule function to perform switching control of individual relays according to the total power consumption, By blocking power in the time zone, it is possible to utilize electricity efficiently and lower the electricity rate of each customer.

In particular, it calculates the trip value automatically by computing the maximum load and the minimum load per hour, calculates the abnormal current or the temporary overvoltage, and cuts the load current of the corresponding individual load when the load current exceeds the set trip value, It is possible to promptly confirm whether or not the subject is abnormal.

In the present invention, a load transformer capable of adjusting the voltage is provided on the load-side line of the distribution board under the control of the monitoring and controlling device to adjust the voltage applied to the load side to lower the power consumption. Or peak time and emergency power shortage, it is possible to secure the reserve power which is insufficient and to lower the electricity rate of each customer.

FIG. 1 is a system diagram of a distribution panel equipped with a real-time blackout prevention system through intelligent load control according to the present invention.
2 is a block diagram of a real-time blackout prevention system through intelligent load control according to the present invention.
3 is a main control flowchart of a real-time blackout prevention system through intelligent load control according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a real-time blackout prevention system according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 and FIG. 2 are diagrams for explaining a real time blackout prevention system through intelligent load control according to the present invention.

According to the present invention, the real-time blackout prevention system according to the present invention can prevent a large power outage by ensuring a low power reserve ratio in case of a power crisis in the East and the summer due to shortage of electricity supply and demand, It is installed in the distribution panel of the customer to control demand reduction in real time.

At this time, the distribution panel of each customer is composed of a main switch 1 for interrupting the electric power put into the receptacle in the electric power network and a plurality of branch switches 2 installed in the branch circuit for supplying power to the plurality of individual loads. At this time, the branch switch 2 can use an earth leakage breaker or a switching switch having a rated current capacity smaller than that of the main switch 1, so that the input power of the large-sized domestic mechanical device or the small mechanical device can be individually cut off. It is preferable that the small mechanical device is a mechanical device having a power consumption of 6 A or less or a motor having a rated output of 200 W or less.

The real-time blackout prevention system according to the present invention has a load monitoring means (100) for monitoring power consumption information of an individual load of a customer such as a house or an office, And a power control management entity such as a KEPCO or a power exchange that monitors an electric power network or generates an abnormality on an individual load side by analyzing power consumption information of an individual load monitored through the load monitoring means 100. [ And a monitoring control device 200 for controlling the relay 110 according to the information about the power reserve ratio received from the server 310 of the server 300.

Hereinafter, the constitution of each part of the present invention will be described in detail.

First, the load monitoring means 100 monitors the power consumption of a large-sized mechanical apparatus or a small-sized mechanical apparatus, which is a household load. The load monitoring means 100 monitors a load current supplied to an individual load of a consumer such as a house or an office (PT) 104 for measuring the load voltage of the individual load, and a ZCT 106 for detecting the leakage current of the individual load.

The load monitoring means 100 is provided on the individual load side line 101 and is connected to the load current measured through the CT 102 of the load at the time of driving the load and the load current measured through the meter transformer The power consumption can be calculated using the measured load voltage, and the leakage current is detected by the ZCT 106. [ That is, by analyzing such power consumption information, it is possible to judge whether or not the individual load side line is short-circuited.

On the other hand, the individual load side line (101) is provided with a relay (110) controlled to be opened or closed under the control of the monitoring control device (200) to cut off or recover the power input to the individual load.

The load monitoring control modules including the load monitoring means 100 and the relays 110 are installed as a pair and are provided for each load. That is, the load monitoring control module may be installed on the line side of a large-sized domestic mechanical apparatus that consumes a large power and a small-sized domestic mechanical apparatus that consumes a small amount of power, and may be installed on a single load side line as needed .

On the other hand, a load transformer 130 capable of adjusting the voltage under the control of the supervisory control device 200 is provided on the load side line of the distribution board to reduce the power consumption by adjusting the voltage applied to the load side.

Of course, the load transformer 130 may adjust the household rated voltage, which is typically 220V, to the allowable minimum allowable voltage and supply the rated voltage to the load side, thereby prolonging the service life of the domestic mechanical device on the load side and increasing the power saving efficiency.

The monitoring control device 200 includes a communication unit 202 receiving information on the power reserve ratio from the server 310 of the power control management organization 300 monitoring the power network, And an arithmetic and control unit 204 for controlling the relay 110 according to the information about the power reserve ratio that is generated through the communication unit 202 when an abnormality occurs in the load by analyzing the power consumption information.

That is, the monitoring control device 200 receives the power consumption information such as the load current supplied from the plurality of load monitoring means 100 to the individual loads and the load voltage and the leakage current, The power consumption of a small-power load or a small-power load such as a small-sized machine tool is calculated.

In this case, the monitoring control device 200 may include a memory 206 for storing information calculated in the operation control unit 204, and the operation control unit 204 may be formed of a microcomputer having a built-in memory.

In order to prevent blackout, which is a large-scale power outage, when the demand amount of electric power becomes larger than the supply amount, Accordingly, the relay 110 of the individual load is controlled to cut off power so that the power consumption of each customer can be lowered.

To this end, the operation control unit 204 of the monitoring control device 200 receives power reserve ratio information in real time from the server 310 of the power control management institution 300 such as a power exchange or a KEPCO through a communication unit 202 , And continuously monitors the power consumption information through the load monitoring means (100). In this way, the power reserve ratio can be secured by controlling the load in the customer in real time.

Particularly, the power consumption information sensed through the load monitoring means 100 is collected and stored in the memory 206 at predetermined time intervals (for example, in units of 1 minute, 5 minutes, and 10 minutes), and the power consumption The maximum value and the minimum value of the power consumption per the load by the daily, weekly, monthly, and yearly consumption amounts are monitored, and the load rate related to how many percent of the power consumption of the whole customer is used in the load, Or whether or not the overvoltage state is temporarily set, and sets the trip value and stores the trip value in the memory 206. [

Therefore, when the load current equal to or greater than the set trip value is used, the operation control unit 204 of the monitoring control device 200 firstly trips the relays 110 of the corresponding individual loads and for a predetermined time (for example, 30 seconds) After the elapsed time, the power is restored and the power is automatically reapplied.

On the other hand, the monitoring control device 200 analyzes the power consumption information sensed through the load monitoring means 100 even after the relay 110 is restored and the power is re-applied. If the abnormal current is repeatedly detected twice or more, The load current is cut off by second tripping of the load 110, and the user is informed of the abnormality and guided to directly load the load.

In this case, the monitoring control device 200 transmits the distribution panel abnormality information to the server 310 of the power control management organization 300 at the remote location through the communication unit 202, and transmits the distribution control information to the server 310 of the power control management organization 300, The SMS or the mobile instant messenger can inform the portable terminal 400 such as a smartphone of the customer of the presence or absence of abnormality of the distribution board so that the user can directly confirm the presence or absence of the distribution board.

Of course, the supervisory control apparatus 200 can check the daily power of the entire household, such as a general household, to determine whether there is an abnormality and store the contents. If the abnormal load or the load suddenly increases instead of the normal load, It is possible to transmit information about the distribution board to the server 310 of the power control management organization 300 through the communication unit 202 or to transmit the information of the distribution panel to the portable terminal 400 such as the user's smart phone 401 or the tablet PC 402, It is possible to directly transmit the information on the distribution board to the home PC 403 and accordingly the user can transmit the distribution board control information to the server 310 of the power control management institution 300 to control the amount of power consumption of individual customers in real time, It is possible to directly control the power consumption of each customer by transmitting the distribution board control information directly from the phone 401 or the tablet PC 402 or the home PC 403 to the monitoring control device 200. [ In this case, the distribution board control information set by the server 310 of the power control management institution 300 may be transmitted to the monitoring control apparatus 200 of the corresponding customer to control opening and closing of the relay 110 of the individual load. In this way, the individual load power of the customer is linked to the AMR so that it can be monitored and controlled in various ways remotely via remote meter reading.

The total amount of consumed power and the remaining amount of power which are not applied to the progressive fee in a customer such as a home are calculated by the monitor and control unit 200 and displayed by the display unit 208 so that the user can check it every day. 202 directly to the portable terminal 400 of the user or the home PC 403 inside the customer so that the user can check the power consumption state of the customer in real time and perform the power control.

The supervisory control apparatus 200 controls the relay 110 according to information on the power reserve ratio received from the server 310 of the power control management institution 300.

At this time, if the power control management organization 300 such as the KPX or the KEPCO sets a reference value of the power consumption level step by step and an emergency situation of a standby power shortage (blackout) occurs, the monitoring control device 200 ), The power reserve amount information including the stepwise control signal is transmitted in real time to control the power consumption amount of each customer. That is, when the step-by-step control signal is received, the monitoring control device 200 sequentially controls the respective relays 110 of the individual loads in real time so as to lower the power consumption step by step according to the set program algorithm, Thereby reducing power consumption.

In this case, the monitoring control device 200 controls the load transformer 130, which is capable of first adjusting the voltage, until the reserve ratio is secured according to the stepwise control signal transmitted from the power control management institution 300, A plurality of relays 110 are controlled by opening and closing a plurality of loads, which are classified into a large power and a small power in accordance with a set priority order, by controlling a voltage applied to the load side, The load is controlled sequentially until the reserve ratio is secured. At this time, the power to be inputted to the high-power machine mechanism is firstly sequentially cut off, and if there is a problem in the power reserve ratio even after that, the low-power machine mechanism such as a lamp is shut off and the load is sequentially controlled until the reserve ratio is secured.

Information on the amount of power consumed in the customer while controlling power by controlling the relay 110 by load is calculated by the monitoring control device 200 and transmitted to the power control management institution 300 through the communication unit 202 To the server (310).

Of course, in the power control management organization 300 that has secured the insufficient reserve power, the power reserve ratio information including the emergency release control signal according to the emergency situation is collectively transmitted to the monitoring control device 200 of each individual customer, Accordingly, the supervisory control apparatus 200 restores the forcedly-disconnected relay 110 to release the emergency state, and puts the electric power into each individual load.

The monitoring control device 200 analyzes the power consumption information input from the load monitoring means 100 for monitoring the individual loads and determines whether or not the used power is changed for a predetermined time (for example, 1 hour, 2 hours, 4 hours, etc.) It is possible to control the relays 110 on the individual load side in consideration of the standby power, thereby shutting off the supplied power, thereby increasing the power saving efficiency. In this case, the individual load may be a cold / hot water machine, a TV, a computer, a set-top box, a bidet, or the like.

Of course, the monitoring control device 200 analyzes the power consumption information inputted from the load monitoring means 100 for monitoring the individual loads, and when the allowable current and the leakage current set in accordance with the capacity for each load are exceeded, 110) to be cut off, thereby shutting off the input power, thereby increasing the power saving efficiency. That is, the monitoring control apparatus 200 identifies abnormality of the load current amount according to a built-in control algorithm, and blocks the relay 110 of the load when it is determined to be abnormal.

In addition, since the electricity charge is usually low at night time, a battery 140 is provided in the distribution panel to use it. That is, the supervisory control apparatus 200 operates to charge the battery 140 to the load side at a time of daytime, peak time, or emergency power shortage so as to charge the battery 140 in the middle of the night time according to a schedule It is possible to prevent blackout before the whole country and to lower the electricity rate of each customer by securing a reserve power which is insufficient.

At this time, the minimum load of the consumer in which the charging power of the battery 140 is used is designed to be used for one hour or longer as a load of a lamp or a small power.

Such a battery 140 is provided in a load line for charge and discharge control and a charging and discharging of the battery 140 is selectively controlled by the control of the monitoring and controlling device 200 at the front end of the battery 140 of the load line The switching switch 142 is switched.

Hereinafter, a monitoring operation example of the real-time blackout prevention system through the intelligent load control according to the present invention will be described with reference to FIGS.

First, the load current, the voltage and the leakage (current) of the individual load are measured through the instrumental current transformer (CT) 102, the instrument transformer (PT) 104 and the video transformer (ZCT) (S100). Then, the supervisory control device 200 calculates the amount of power consumption by using these pieces of power consumption information, and these pieces of information on the amount of power consumption are monitored in units of seconds / minutes / (S102) Then, the calculated power consumption amount information is stored in the memory 206 of the monitoring control device 200 (S104)

In addition, the monitoring control device 200 monitors the maximum and minimum values of the power consumption of each load according to the daily, weekly, monthly, and yearly power consumption amount of the customer according to the control algorithm, calculates the maximum and minimum load rates, The actual load ratio is calculated as to what percentage of the total power consumption of the customer is used in the load (S106)

The monitoring control device 200 automatically calculates a maximum and minimum load ratio, whether an abnormal current flows through the load or whether it is in a transient overvoltage state, and sets the trip value to the memory 206. (S108 )

In addition, the monitoring control device 200 continuously monitors the actual load factor, abnormal current, etc. (S110) At this time, the monitoring control device 200 outputs a control signal when an error occurs (S112) The relay 110 of the load is controlled to interrupt the power input (S114)

Such a control state is transmitted to the server 310 of the power control management institution 300 so that the user can recognize the control state, and the server 310 of the power control management institution 300, The abnormal signal is notified to the portable terminal 400 or directly transmitted to the PC 403 or the portable terminal 400 in the customer through the RS485 or TCP / IP communication so that the user can check the status of the distribution board from time to time, To control opening and closing of the relay 110 in step S116.

Of course, the supervisory control apparatus 200 monitors the information on the power reserve ratio in real time in the server 310 of the power control management institution 300 such as KEPCO or the power exchange, and controls opening / closing of the relay 110 of the individual load Thereby securing the power reserve ratio (S118)

Hereinafter, specific operating examples of the present invention will be described.

If the electricity supply does not reach the total power demand, the power reserve ratio approaches 0%, and when the power reserve ratio reaches 0%, the electricity quality of the entire power grid drops sharply, leading to a large blackout do. Accordingly, in order to prevent these blackouts from occurring in the power control management organization 300, which is a central body for monitoring the power reserve ratio, the power reserve ratio is monitored to determine the danger level of the power reserve ratio, It is possible to secure the power reserve ratio and prevent blackout in advance.

Therefore, a power control management authority 300 such as KEPCO sets a reference value of power consumption and transmits a step-by-step control signal to the monitoring control device 200 provided in the distribution panel of each customer. Accordingly, the supervisory control apparatus 200 controls the individual load relays of the high-power mechanical mechanism in accordance with the priority order set in the memory 206 to secure the agreed power reserve ratio, and additionally, And controls relay 110 to open and close. In this case, the monitoring and controlling device 200 sequentially adjusts the load power so as to reach the reference value of the electric power consumption amount and controls the load power to be applied to the CT 102, the instrument transformer (PT ) 104 and the ZCT 106 to determine whether the amount of power consumed by the power control management institution 300 has reached the reference value of the amount of power consumption or less, To control the load.

The power consumption information measured by the load monitoring means 100 through the power control of the customer is stored in the memory 206 of the monitoring and controlling apparatus 200. The maximum load and the minimum load used every day are calculated, It sets the trip value automatically by calculating the percentage of used, abnormal current, or transient overvoltage automatically. When using the load current above the set trip value, it trips for the first time and it is automatically reapplied after 30 seconds. Of course, when the abnormal current is repeated twice or more, the re-charged relay 110 interrupts the load current of the corresponding individual load and notifies the user of the abnormality, and inputs the load.

Of course, the information on the amount of power consumed in the customer while controlling the power by controlling the load-dependent relay 110 is transmitted to the server 310 of the power control management institution 300, and the power control The management organization 300 collectively transmits the emergency release control signal to the monitoring control device 200 of each individual customer so that the monitoring control device 200 can control the relay 110 ) And power is supplied to each individual load.

In addition, when the blackout signal is generated or a load current over a set value is charged by charging the battery 140 in the middle of the night time, the electricity supplied through the power grid is cut off and the power of the battery 140 is supplied to the individual load of the consumer, The storage capacity of the battery 140 can be ensured by using the storage battery during the daytime or peak load.

On the other hand, in the instrument transformer (PT) 104 as the load monitoring means 100, the load voltage is measured in units of 10 minutes, and the maximum value, the minimum value and the average value are stored in the monitoring control device 200. The reason why the voltage fluctuation amount is measured and stored is to check and improve the power quality.

The monitoring control device 200 calculates the load value using the load current and the voltage, and automatically sets the trip value by the arithmetic and control unit 204 without arbitrarily setting it by the user. For example, if the total load is 220V 5KW single phase and the load current is 23A, if 23A is 100% load and the actual load is 15A, the current value can not be adjusted with normal circuit breaker, The value is automatically set to the minimum value. If it is out of the normal value range, it trips 2 times or 3 times and restores itself to find out whether it is abnormal current or normal current. In case of normal current, re- At this time, whether the load current is a resistive load, a reactance load, or a leakage current is calculated and determined according to the algorithm set by the operation control unit 204 of the monitoring and control apparatus 200.

The operation control unit 204 of the monitoring control device 200 monitors the maximum and minimum values of the real-time usage load by day, week, and month, calculates the load current and voltage as a load factor, And automatically adjusts the trip value by the program algorithm and stores the trip value in the memory 206. [

The monitoring control device 200 monitors whether leakage current flows through the ZCT 106 of the load monitoring means 100. If the monitored leakage current value is equal to or greater than a set value, To the server 310 of the power control management institution 300 and informs the user's portable terminal 400 of the abnormal signal from the server 310 of the power control management agency 300. [

In this case, when the monitoring control apparatus 200 is leaked but can not repair the electric leakage, the threshold value and the threshold value are set so that the relay 110 of the load is tripped when it is above the threshold value. The threshold value is preferably set when the leakage current is 15 mA and the limit value is set to 20 mA, and it is desirable to set the relay 110 of the load to trip when the current is 15 mA or more.

The monitoring control device 200 monitors the power demand of the customer and automatically sets the threshold current value and the limit current value so that electricity can be used as much as necessary. The monitoring and control device 200 monitors the overcurrent, Repair or overcurrent monitoring and informs the portable terminal 400 of the user of the customer of the error. That is, the monitoring control device 200 can adjust the load power according to a schedule set in a stand alone manner.

The monitoring control device 200 analyzes the power consumption information monitored by the load monitoring means 100 of the individual load, and controls the relays of the individual loads when it is determined as standby power to shut off the power input. That is, when the current value being used is less than the set value, the load is automatically shut off. In addition, users monitor voltage, current, leakage current, and distribution panel temperature of each load through the various wired and wireless media that use RS485 communication method, etc., and the voltage and current that are usually used are abnormal Allows you to check and control the situation from time to time.

Although the embodiments of the present invention have been described in detail in the foregoing, the scope of the present invention is not limited thereto, and the scope of the present invention extends to substantially the same range as the embodiments of the present invention.

100: Load monitoring means 102: Current transformer (CT)
104: Instrument transformer (PT) 106: Video transformer (ZCT)
110: Relay 130: Transformer for load
140: Storage battery 142: Conversion switch
200: monitoring control device 202:
204: operation control section 206: memory
208: Display means 300: Power control authority
310: server 400: portable terminal

Claims (10)

A load monitoring means (100) for monitoring power consumption information of an individual load branching at a distribution board of a customer; a relay (110) for interrupting or restoring power input to the individual load; And analyzes the power consumption information of the individual load to analyze the power consumption information of the relay 110 according to the information about the power reserve ratio received from the server 310 of the power control management organization 300 that has an error on the individual load side or monitors the power network. And a monitoring control device (200) for controlling the monitoring device (200).
The monitoring control device 200 includes a communication unit 202 receiving information on the power reserve ratio from the server 310 of the power control management organization 300 monitoring the power network, The relay 110 calculates the power consumption of the individual load by analyzing the load voltage and the current and the leakage current which are the power consumption information and calculates the power consumption of the individual load based on the information about the power reserve ratio inputted through the communication unit 202, And an arithmetic control unit 204 for controlling the arithmetic operation unit 204;
The operation control unit 204 first trips the relay 110 if the load current sensed through the load monitoring unit 100 is equal to or greater than a set trip value, restores the relay after a predetermined time elapses, If the load current detected by the secondary load monitoring means 100 is an abnormal current, the relay 110 is tripped by the secondary to cut off the load current and the distribution panel abnormality information is transmitted to the remote power control To the server (310) of the management organization (300).
The method according to claim 1,
(CT) 102 for detecting a load current supplied to an individual load of the customer, a meter transformer (PT) 104 for measuring a load voltage of the individual load, (ZCT) (106) for detecting a leakage current of the individual load, and a real time blackout prevention system through intelligent load control.
The method according to claim 1,
And a load transformer (130) capable of adjusting the voltage by controlling the monitoring and controlling device (200) is further provided on a load side line of the distribution board.
The method according to claim 1,
Wherein the monitoring control device (200) calculates the total amount of consumed power and the remaining amount of power that are not applicable to the progressive agent charge and displays the total amount of consumed power and the remaining amount of power with the display means (208).
The method according to claim 1,
The monitoring control apparatus 200 receives the distribution board control information from the smart phone 401 or the tablet PC 402 or the home PC 403 as the user's portable terminal 400 and controls the opening and closing of the relay 110 Real-time blackout prevention system with intelligent load control.
The method according to claim 1,
The monitoring control device 200 analyzes the power consumption information input from the load monitoring means 100 for monitoring the individual loads and determines that the relay 110 of the individual load is a standby power when the used power does not change for a predetermined time, The blackout prevention system according to the present invention can prevent the blackout of the real time blackout through intelligent load control.
The method according to claim 1,
The distribution panel includes a battery 140 that can be charged with power and a switching switch 142 that is switched so that charging and discharging of the battery 140 are selectively controlled by the monitoring and controlling device 200, Wherein the control unit (200) controls the switching device (142) so that the battery (140) is charged in the middle of the night time zone and the battery (140) is discharged in case of an emergency such as daytime, peak time, Real time blackout prevention system through load control.
The method according to claim 1,
When the power reserve ratio information including the stepwise control signal is received, the supervisory control apparatus 200 controls the load transformer 130 firstly until the power reserve ratio is secured according to the stepwise control signal, And controls a plurality of relays (110) by opening and closing the plurality of loads in accordance with the set priorities so as to control the input power for each load. The real time blackout prevention system .
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