KR20150119742A - Power managing system for energy consumer - Google Patents

Abstract

A target power managing system for an energy consumer according to the present invention comprises: an input unit to receive a power measurement value (WP) and a synchronization signal (EOI) from an electricity meter of an energy consumer as input, and receive a voltage value (PT) and a current value (CT) from a distribution boards as input; a calculation unit to calculate a current power value based on the inputted information, and compare the current power value with a prescribed target power value; a power supply control unit to control power supplied to a plurality of consumer groups in response to an inputted control signal; and a processing unit (MCU) to transmit the inputted information to the calculation unit when the information is inputted into the input unit to receive the current power value and a comparison result, and supply the control signal to the power supply control unit in response to the received comparison result.

Description

[0001] POWER MANAGING SYSTEM FOR ENERGY CONSUMER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an acceptable target power management system, and more particularly, to a system for achieving energy saving of a low-voltage consumer and improving electric billing burden.

In the power control business, not only the energy saving of high-pressure consumers but also the energy saving of low-pressure consumers can not be overlooked. Also, the market of high-pressure consumers is being reduced and the prevalence of energy- It is a mandatory task.

Therefore, it is absolutely necessary to strengthen the competitiveness of enterprises by developing a power integrated control system that responds to low-pressure customers.

 The existing maximum power management device operates in a manner of monitoring and controlling the real time use power by receiving the power value and the electric power synchronization signal (15 minute reset signal) from the electric power meter installed in the high voltage receiving equipment. Such a maximum power management device has been installed only in a high-pressure room where a power reception facility is installed, so that the maximum demand power (PEAK) has been controlled so as not to exceed the target power.

On the other hand, in the case of the low-pressure consumer who can not control the load because there is no such maximum power management device, it is wasting cold energy in the summer and cold energy in the winter.

As a method for saving such electric energy, Patent No. 10-1227124 (name: real-time electric power and electric charge management system for specific space of a building) (hereinafter referred to as prior art) is disclosed.

This conventional technology is a power management system for monitoring the power consumption of a multi-story building as shown in Fig. 1, which is mounted on each line of a floor distribution board of a multi-story building, A CT block having a built-in microcomputer for calculating current amount data through the received current data; A transmitter for receiving the corresponding layer current amount data calculated in the CT block and transmitting the layer current amount data as an RF signal; And a reception analyzer for receiving a floor-level RF signal from the transmitter and analyzing a power usage state of the user of each floor through the stored data information.

Thus, in the prior art, the user can recognize the power consumption status of the user including the electricity rate calculated according to the real-time power usage status through the power status display unit in real time for each floor / part of the multi-story building, We will be able to manage power management more effectively even before receiving the bill.

Patent No. 10-1227124

However, in the above-described conventional technology, only the electricity consumption state is notified in real time and the electricity rate is displayed accordingly, but the function of actually controlling the use of electric power is not provided.

Accordingly, an object of the present invention is to provide a target power management system capable of actively controlling the amount of power used by adding an inexpensive and simple facility, thereby lowering the maximum demand power of the high-pressure consumer and the low-voltage consumer.

In order to attain the above object, the present invention provides an acceptable target power management system for receiving a power measurement value (WP) and a synchronization signal (EOI) from a power meter of a customer and receiving a voltage value (PT) An input unit for receiving a value CT; A calculation unit for calculating a current power value based on the input information and comparing the current power value with a predetermined target power value; A power supply controller for controlling power supply to a plurality of consumption groups in response to an input control signal; And a processing unit for transmitting the input information to the operation unit to receive the calculated current power value and the comparison result and providing the control signal to the power supply control unit in accordance with the received comparison result, (MCU).

The distribution board is further provided with voltage measuring means for measuring a voltage of a commercial power supply supplied from a power supplier and current measuring means for measuring a current of the commercial power supply, And communicates with the current measuring means.

The plurality of consumption groups may be grouped according to a floor or a compartment of a cafeteria, grouped by the amount of power consumption of each appliance, or grouped by each type of load of each appliance.

In addition, the target power value is set to be subdivided by season, month, day, and time zone.

It is also possible to control to continue supplying power to a specific consumption group among the plurality of consumption groups, regardless of the comparison result, prior to the control signal.

Further, the acceptable target power management system further includes a communication unit for communicating with a remote control terminal via a wired or wireless network, and the processing unit is characterized in that the operation is controlled under the control of the control terminal .

In addition, the processor may receive a selection of either the power meter or the distribution board, and perform target power management using information from the power meter or information from the distribution board.

The processing unit may further include a function of converting the calculated current power value into an amount of generated carbon dioxide and displaying the converted value.

According to the acceptable target power management system according to the present invention having the above-described configuration, the energy saving of the low-pressure consumer and the burden of the electric bill are improved.

Also, it is possible to fundamentally improve the problem that the maximum power management device can not be installed due to the existing system problem having the expensive construction cost and the technical limit for the application of the power consumption control.

   In addition, the target power management system according to the present invention can be installed in all the low-pressure consumers and the high-pressure consumers, which is very positive for the market situation. In addition, it is possible to lower the maximum demand power of the high-pressure consumer and the low-voltage consumer by simply changing the setting in the software installed with the system construction.

1 is a configuration diagram of a power and electricity bill management system according to the prior art.
2 is a diagram for explaining a configuration of a target power management system for a portable terminal according to the present invention.
3 is a diagram showing an example of a target power value set by time.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a target acceptable power management system according to the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the technical scope of the present invention. Will be.

2 is a diagram for explaining a configuration of a target power management system for a portable terminal according to the present invention.

KEPCO (Korea Electric Power Corporation) meter 100 outputs a power measurement value (WP) and a synchronization signal (EOI) of a high voltage customer.

The existing distribution board 200 is a distribution board that is already installed in a low-voltage power supply, in which voltage measurement means and current measurement means can be installed, and outputs the measured voltage value and current value.

The KEPCO meter 100 is a device that can be installed in a high-pressure room, and the distribution board 200 is installed in a low-pressure room.

The input unit 600 receives a power measurement value WP and a synchronization signal EOI from a power meter of a customer (that is, an electric meter) 100 and receives a voltage value PT and a current value (CT). At this time, connection between the power meter 100 and the distribution board 200 and the input unit 600 can be performed by wired communication and / or wireless communication. In addition, various communication methods such as a mobile phone communication network, an internet network, a Bluetooth communication, an infrared communication, and an RFID communication can be applied.

The calculation unit 500 calculates the current use of the consumer based on the information input to the input unit 600 (i.e., the power measurement value WP and the synchronization signal EOI, the voltage value PT, and the current value CT) And calculates a power value. Then, the preset target power value is compared with the calculated used power value.

In the present invention, the target power value can be subdivided by season, month, day, and time zone.

The power supply control unit 400 controls power supply to a plurality of consumption groups in response to a control signal (from the processing unit) to be input.

The consumption group is for managing various electrical apparatuses used in a customer by grouping them into one or a plurality of groups. As an example of the consumption group, it can be divided into an air condition group and a lighting group, as shown in the figure. This distinction is dependent on the type of load of the electric apparatus.

Consumption groups, on the other hand, can be grouped by floor or by compartment of a consumer building. That is, they can be grouped in the manner of the first layer and the second layer, or can be grouped in the manner of an office, a conference room, a toilet and a hallway.

The consumed group may be grouped by the amount of power consumed by each of the electric devices. That is, it may be grouped into a group of electric appliances having a power consumption of less than 100 Wh, an electric appliance group having a consumed electric power of 1 KWh or more, and an electric appliance group having a consumed electric power of 0.1 to 1 KWh.

The processing unit 300 transmits the input information to the operation unit 500 to input the current power value to the input unit 600 when the information is input from the electrometer 100 and / or the existing distribution board 200 And receives a result of comparison between the calculated current use power value and a previously stored target power value.

The received current power value can be transmitted to the remote control terminal 900 through the communication unit 700 described later or displayed through a predetermined display means.

On the other hand, in the comparison result calculated by the calculation unit 500, when the calculated current used power value exceeds the target power value, the processing unit 300 may control the use of at least one or more And generates a control signal for limiting the power supply to the consuming group. The generated control signal may be transmitted to the power supply controller 400.

In addition, the power supply control by the processing unit 300 can selectively control each consumption group or selectively control each electric appliance in the consumption group in steps.

Further, the control of the power supply can be set to be performed only for a preset time. After a predetermined time has elapsed, the control for the consumed group under control can be canceled and normal operation can be performed. At this time, it is possible to adjust the time or the manner of controlling the power according to the type of the currently consumed power consumption.

For example, when the used power amount exceeds the target power value by the first range, the power is cut off for the first time, and when the used power amount exceeds the target power amount by the second range, the power is cut off for the second time . ≪ / RTI >

By such a stepwise control method, it is possible to alleviate the electric shock of each of the electric devices, and the use time of the electric device can be maximized even during the power control.

If the calculated current used power value is smaller than the target power value, the processing unit 300 does not limit the power consumption.

The communication unit 700 transmits specific information indicated by the processing unit 300 to the remote control terminals 800 and 900 through a wired or wireless network. The control unit 900 receives information from the remote control terminal 900 and provides the received information to the processing unit 300. The processing unit 300 can control the operation based on the information provided by the remote control terminal 900, modify the target power value held therein, or modify the control method for the consumption group.

The remote terminals 800 and 900 may include a smart phone, a touchpad, a mobile phone, a computer, a remote control, etc. and may include information input to the input unit 600 (i.e., a power measurement value WP and a synchronization signal EOI ), A voltage value (PT) and a current value (CT)), and a calculated current used power value. The remote terminals 800 and 900 may store and process the provided information to control the operation of the processing unit 300. [

On the other hand, the specific consumption group can be set so as not to be subjected to the power control of the processing unit 300 or the power supply control unit 400. For example, with respect to an emergency power generation facility, a safety guidance lamp, a fire detection facility, or the like, the power supply can be set so that the continuous power supply can be maintained even if the presently used power amount exceeds the target power amount.

3 is a diagram showing an example of a target power value set by time. In the target acceptable power management system according to the present invention, the target power value can be set for each time slot. In FIG. 3, a target power value changing in real time is set so that the power consumption can be managed in real time.

On the other hand, as shown in the figure, the target amount of electric power of the first day and the second day may be set to be different from each other. In addition, the target power value may be set in units of time or on a date basis, and the target power value may be adjusted monthly or seasonally.

The target power management system according to the present invention as described above is for reducing the energy consumption of the low pressure consumer, and may include a control equipment, an operation program, and a data storage device. The operation program can be installed and operated in a computer or a mobile device in a customer or a remote place. This is different from that of the existing maximum power management device installed and operating solely in the high pressure consumer.

On the other hand, a high-pressure consumer can be controlled by a method of limiting the amount of electricity used by receiving a signal from a conventional electric meter and by installing a current transformer in the distribution panel for a low pressure consumer, Or the like.

The operating program provided by the present invention is capable of (1) setting and controlling the screen of the processing unit by touching, (2) selecting high pressure / low pressure in the processing unit according to the installation site, (3) Depending on the application, it can be installed and operated automatically in mobile devices or PCs to display information to the user. (4) If the target amount of power is set by the user, it can be controlled so as not to exceed the set amount of power, , (5) a method of allowing the processing unit to automatically control the power supply, and a method of recognizing the current power usage displayed by the user and manually controlling the power supply; and (6) (7) current status of power consumption, control status, etc. (8) It is possible to check the past and present power consumption by comparing the previous / present day, the previous month / the present month, the previous year / the present year by operating the processing unit screen, The power consumption can be reduced by decreasing the desired power consumption amount (or the target power amount) by separately setting a day on which the power consumption is not used (for example, Saturday and Sunday, Saturday only, or Sunday only) (11) It is possible to add the function of sending the contents of the list view that shows the power consumption used up to now as a file to the set mail. (12) The IP address and port number of the remote control terminal can be set in the operation program, (13) The illumination time of the processing unit screen can be set on or off automatically after a certain time (14) It is possible to set it so that it can not be controlled remotely by a mobile device, a PC or the like including a security setting function (it is impossible to arbitrarily operate), and (15) The name of each electric apparatus in the group can be individually set so that the user can easily select a desired group or apparatus and process the control. (16) The processor selects whether or not each group or electric apparatus is activated So that it is possible to provide functions that can be divided into a remote controllable part and a remote controllable part.

As described above, this operation program can be driven in the remote control terminal or can be mounted on the processing unit 300 and driven.

An example of reduction of electricity consumption and reduction of electric charges by the target power management system according to the present invention is as follows.

If low-pressure consumers normally operate 6 air-conditioner 3 kW for 8 hours and 3 months a day, the power consumption is calculated as 3 kW × 6 units × 8 hours × 30 days × 3 months = 12,960 kW, × 120 won = 1,555,200 won.

On the other hand, when power is controlled for 4 hours by using the target power management system according to the present invention at low pressure, when the air conditioner 6 kW is operated for 4 hours and 3 months a day, the power consumption is 3 kW x 6 x 4 Hour × 30 days × 3 months = 6,480 kw, and the electricity rate at this time can be calculated as 12,960 kw × 120 won = 777,600 won.

In other words, electricity consumption and electric charge can be reduced by half when compared with 3 months in summer. At this time, if the progressive tax portion is applied, the degree of saving further increases.

Electricity consumers are divided into high-pressure consumers and low-pressure consumers.

The high-pressure customer is a customer who uses electric power by contracting with KEPCO to install 22.9kV high-voltage receiving equipment with a power of 100kW or more and receiving 22.9kV and reducing the voltage to 380V / 220V. to be.

Low-pressure customers are those who use electricity by directly charging 380V / 220V without the 22.9kV power reception facility with less than 100kW contract power with KEPCO.

The target power management system according to the present invention can be designed such that the low pressure consumer operates at low pressure MODE and the high pressure consumer is selected to operate at high pressure MODE. In other words, it is possible to manage the target power of the high-voltage customer by installing the signal line which can receive the WP signal, EOI signal, and COM signal from the electric meter even if the electric power is installed due to low capacity . ≪ / RTI >

Also, the selection of the high-pressure and low-pressure MODE is designed so that it can not be changed on a mobile or tablet PC, so even a user having administrator authority can be restricted to impossible to change the MODE. This prevents erroneous target power management due to erroneous MODE selection.

MODE change for high pressure and low pressure MODE can be changed only by the person who knows the manager's password of the target power management system according to the present invention. Further, when the mode is changed, it is possible to repeatedly confirm the mode change and request re-input of the password.

In addition, the conventional maximum power management apparatus does not display the amount of generated carbon dioxide (CO ₂ ). Here, the amount of carbon dioxide generated refers to the total amount generated by direct / indirect factors including various energy sources (water, electricity, oil, gas, etc.) consumed in everyday life, automobile use, waste disposal and various land development.

In the target power management system according to the present invention, it is possible to grasp the degree of saving / saving of energy by comparing the amount of generated carbon dioxide with the use of electric power.

Further, in the target power management system according to the present invention, the previous year / this year, the previous month / the current month. The amount of carbon dioxide generated can be calculated, stored, transmitted or displayed on the screen based on the electricity used for the previous day / day.

Immediately after the target power management system according to the present invention is installed in the customer, data for the previous year, the previous month, and the previous day are not stored. Therefore, the data is inputted only once during execution and recorded in the system to compare and display the amount of generated carbon dioxide .

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the scope of protection of the present invention should be interpreted according to the claims. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.

Claims (8)

An input unit for receiving a power measurement value WP and a synchronization signal EOI from a power meter of a customer and receiving a voltage value PT and a current value CT from the distribution panel;
A calculation unit for calculating a current power value based on the input information and comparing the current power value with a predetermined target power value;
A power supply controller for controlling power supply to a plurality of consumption groups in response to an input control signal; And
A processor for receiving the calculated current power value and a comparison result by transmitting the input information to an operation unit and providing the control signal to the power supply control unit in response to the received comparison result, MCU). ≪ / RTI > The method according to claim 1,
The distribution board is provided with voltage measurement means for measuring a voltage of a commercial power supply supplied from a power supplier and current measurement means for measuring a current of the commercial power supply,
Wherein the processor communicates with the voltage measuring means and the current measuring means. The method according to claim 1,
Wherein the plurality of consumption groups comprises:
It can be grouped by floor or section of the consumer building,
Grouped by the power consumption of each apparatus,
Wherein the target power management system is grouped according to load types of the respective apparatuses. The method according to claim 1,
The target power value,
Season, month, day, and time of day. The method according to claim 1,
Wherein control is exercised so that power supply to a specific consumption group among the plurality of consumption groups is continued in priority to the control signal regardless of the comparison result. The method according to claim 1,
Wherein the acceptable target power management system further comprises a communication unit for communicating with a remote control terminal via a wired or wireless network,
Wherein the processing unit is controlled in operation under the control of the control terminal. The method according to claim 1,
Wherein the processor receives a selection of either the power meter or the distribution board and performs target power management using information from the power meter or information from the distribution board. The method according to claim 1,
Wherein the processing unit further includes a function of converting the calculated current power value into a carbon dioxide generation amount and displaying the conversion result.

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