KR20240065461A - Power saving device for industrial production equipment - Google Patents

Abstract

A power saving device for industrial production equipment is disclosed. A power saving device for industrial production equipment according to an embodiment of the present invention includes a plurality of energy metering devices that collect at least one of active power, reactive power, phase-to-phase voltage, line-to-line voltage, power factor, and phase of industrial production equipment, the energy metering device An integrated sensing module that collects data collected from devices and transmits it to a server, a server that receives data from the integrated sensing module and stores load power information and usage patterns of the industrial production equipment, and receives sensing data from the integrated sensing module A sensor monitoring unit that monitors whether the industrial production equipment is overloaded, calculates and processes the power usage for each load through the data measured by the integrated sensing module, outputs the necessary data through the display window of the server, and outputs the necessary data through the display window of the server. Data on the power consumption and use or operation status of each industrial production equipment collected from the central processing control unit that controls the equipment and the integrated sensing module is input from the server, and the expected demand for the power consumption of the entire industrial production equipment is calculated. A power demand prediction unit, a load management unit that sets a management target amount including target power consumption and load management time of the industrial production equipment based on the expected demand calculated by the power demand prediction unit; and a plurality of capacitive reactances in series or a voltage regulator that is connected in parallel or series-parallel and includes switching elements connected in series with each of the capacitive reactances to regulate the voltage; Includes.

Description

Power saving device for industrial production equipment}

The present invention relates to a power saving device for industrial production equipment. More specifically, the present invention relates to a power saving device for industrial production equipment. More specifically, the load information collected from each equipment is monitored using an integrated sensing module, and in particular, the load power is monitored without power consumption required for voltage adjustment. This relates to a power saving device for industrial production equipment that maximizes energy savings by adjusting the voltage to suit the load condition or supplying power to the load by selectively adjusting the voltage by the user.

In general, load power consumption consumed in the operation of various industrial production equipment is the most important data that can be used to analyze and determine product production, worker productivity, equipment load, and failure prediction.

Accordingly, the need for technology that monitors and analyzes acquired power data in real time on a kiosk-type display or mobile device to provide users with production volume and work productivity is increasing.

However, in the case of single-part load power measurement technology for existing industrial production equipment, it is necessary to simultaneously measure the load power of several parts that make up one equipment because the industrial production equipment is composed of multiple parts. However, existing power devices There was a problem in that load power could only be measured for a single part.

Due to these limitations, when trying to measure the load power of several parts simultaneously, many power devices must be installed, which increases the economic burden. This is because the existing power device has a function module that measures power and transmits the measured power data to the server. This was because the communication module transmitting to was integrated.

Therefore, research is required on a device that collects and analyzes load information using a single integrated sensing module and thereby reduces the power of industrial production equipment.

Korean Patent Publication No. 10-2014-0132523

The purpose of the present invention is to provide a power saving device that can reduce wasted power energy by controlling the load by identifying the power consumption and usage or operation status of industrial production equipment.

In addition, the present invention can save power by dividing the voltage by the capacitive reactance connected in series to each power device and the impedance state of the load to supply the optimal supply voltage corresponding to the required output of the connected load. The goal is to provide a power saving device that can

A power saving device for industrial production equipment according to an embodiment of the present invention includes a plurality of energy metering devices that collect at least one of active power, reactive power, phase-to-phase voltage, line-to-line voltage, power factor, and phase of industrial production equipment, the energy metering device An integrated sensing module that collects data collected from devices and transmits it to a server, a server that receives data from the integrated sensing module and stores load power information and usage patterns of the industrial production equipment, and receives sensing data from the integrated sensing module A sensor monitoring unit that monitors whether the industrial production equipment is overloaded, calculates and processes the power usage for each load through the data measured by the integrated sensing module, outputs the necessary data through the display window of the server, and outputs the necessary data through the display window of the server. Data on the power consumption and use or operation status of each industrial production equipment collected from the central processing control unit that controls the equipment and the integrated sensing module is input from the server, and the expected demand for the power consumption of all industrial production equipment is calculated. A power demand prediction unit, a load management unit that sets a management target amount including target power consumption and load management time of the industrial production equipment based on the expected demand calculated by the power demand prediction unit; and a plurality of capacitive reactances in series or a voltage regulator that is connected in parallel or series-parallel and includes switching elements connected in series with each of the capacitive reactances to regulate the voltage; Includes.

In addition, according to one embodiment of the present invention, the load management unit,

Among the industrial production equipment, priorities can be set for loads that can be moved or blocked during use times, and managed to use a preset management target power amount sequentially according to the priority.

In addition, the voltage regulator according to an embodiment of the present invention,

The voltage can be adjusted according to the load status of the industrial production equipment, or the user can selectively adjust the voltage to supply a voltage corresponding to the required output of the industrial production equipment to save power.

In addition, the sensor monitoring unit according to an embodiment of the present invention,

When the average error (Aerr) of the temperature sensor provided at one point of the integrated sensing module to sense the temperature and the average error (Aerr) of the temperature sensor calculated by the following [Equation 1] is greater than the preset limit error (Serr), the temperature sensor It can be determined that is broken.

In addition, the server according to an embodiment of the present invention includes a real-time error determination unit that determines whether a real-time error has occurred in the industrial production equipment from data received from the integrated sensing module; And a failure prediction unit that predicts a failure of the industrial production equipment based on big data and machine learning; and, when a failure of the industrial production equipment is predicted, a manual provision unit that generates a failure response manual and transmits it to the manager. ;, wherein the central processing control unit may control the supply of power when the power usage of a specific load of the industrial production equipment exceeds or the power usage of the entire load exceeds.

The present invention rationalizes product prices and simplifies equipment installation by dualizing energy collection and aggregation and transmission devices so that load information data collected from multiple energy metering devices can be collected and processed using one integrated sensing module. It is possible to provide a power analysis device that can

In addition, the present invention can provide a power analysis device that can prevent failures in advance by providing machine learning-based failure prediction information using load information data of industrial production equipment.

In addition, the present invention can provide a power analysis device that can quickly identify industrial production equipment in an overloaded state and turn off the power using load information data of industrial production equipment.

In addition, the present invention can reduce wasted power energy by controlling the load by identifying the power consumption and usage or operation status of industrial production equipment.

In addition, the present invention can save power by dividing the voltage by the capacitive reactance connected in series to each power device and the impedance state of the load to supply the optimal supply voltage corresponding to the required output of the connected load. You can.

Figure 1 is a block diagram showing a power saving device for industrial production equipment in one embodiment of the present invention.
Figure 2 is a diagram showing the detailed configuration of a power saving device for industrial production equipment according to an embodiment of the present invention.
Figure 3 is a diagram illustrating an integrated sensing module according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating an energy metering device 110 according to an embodiment of the present invention.
Figure 5 is a diagram illustrating the concept of phase voltage and phase-to-phase voltage.
Figure 6 is a diagram illustrating the delta connection method.
Figure 7 is a diagram illustrating the Y connection method.
Figure 8 is a diagram illustrating making 220V in Y connection.
Figure 9 is a diagram illustrating the three-phase three-wire transformer structure and making 220V in delta connection.
Figure 10 is a diagram illustrating a wiring diagram of a three-phase, four-wire Y connection.
Figure 11 is a diagram illustrating a Y wiring circuit diagram of a power measurement IC.
Figure 12 is a diagram illustrating a wiring diagram of a three-phase, three-wire connection.
Figure 13 is a diagram illustrating a wiring circuit diagram of a power measurement IC.
Figure 14 is a diagram showing the configuration of the power measurement portion of the integrated sensing module and energy metering device 110 according to an embodiment of the present invention.
Figure 15 is a diagram showing the configuration when selecting a Y connection according to an embodiment of the present invention.
Figure 16 is a diagram showing the configuration when selecting a connection according to an embodiment of the present invention.
Figure 17 is a diagram showing the configuration of a communication protocol according to an embodiment of the present invention.
Figure 18 is a diagram illustrating a data request packet and response packet according to an embodiment of the present invention.
Figure 19 is a diagram illustrating types of data and registers according to an embodiment of the present invention.
Figure 20 is a diagram showing a first example of a Calibration Program according to an embodiment of the present invention.
Figure 21 is a diagram showing a second example of a Calibration Program according to an embodiment of the present invention.
Figure 22 is a diagram showing a third example of a Calibration Program according to an embodiment of the present invention.
Figure 23 is a diagram showing the configuration of a communication system according to an embodiment of the present invention.
Figure 24 is a diagram showing an RS485 communication configuration according to an embodiment of the present invention.
Figure 25 is a diagram showing a WIFI/LTE/Ethernet communication configuration according to an embodiment of the present invention.
Figure 26 is a diagram showing an RF communication configuration according to an embodiment of the present invention.
Figure 27 is a diagram illustrating a data request method and a data response method according to an embodiment of the present invention.
Figure 28 is a diagram illustrating a communication mode according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention may add, change, or delete other components within the scope of the same spirit, or create other degenerative inventions or this invention. Other embodiments that are included within the scope of the invention can be easily proposed, but this will also be said to be included within the scope of the invention of the present application.

Hereinafter, the power saving device for industrial production equipment of the present invention will be described in detail with reference to the attached FIGS. 1 to 28.

Figure 1 is a block diagram showing a power saving device for industrial production equipment according to an embodiment of the present invention.

Referring to Figure 1, the power saving device of industrial production equipment includes a plurality of energy metering devices 110, an integrated sensing module 120 and a server 130, a sensor monitoring unit 140, a notification unit 150, and a measurement cycle system. It includes a government unit 160, a central processing control unit 170, a power demand prediction unit 210, a load management unit 220, and a voltage regulator 230.

The energy metering device 110 is provided in plural numbers and can each collect load power information of industrial production equipment.

The energy metering device 110 may collect at least one of active power, reactive power, phase-to-phase voltage, line-to-line voltage, power factor, and phase of the industrial production equipment.

The integrated sensing module 120 may collect data collected from the energy metering device 110 and transmit it to the server 130.

The integrated sensing module 120 can be configured in various ways, such as a current sensor that senses the current and voltage consumed by each load, a voltage sensor, a temperature sensor that detects overheating, a humidity sensor, a vibration sensor, etc.

The integrated sensing module 120 is equipped with a high-precision current sensor, and can extract current consumption amplitude and phase data of the industrial production equipment in a multi-load environment and analyze abnormalities in the industrial production equipment through pattern analysis.

The high-precision current sensor is small in size and can be used in various power facilities. It is suitable for current monitoring and protection purposes, and can precisely detect current even in minute currents with a high sensitivity function.

High bandwidth, fast response time, and ability to measure current very accurately even with temperature changes.

The energy metering device 110 detects each voltage and current for multiple loads, measures active power and reactive power as the product of the detected voltage and current, and stores the amount of power for each load. It can be configured to display and output optical communication.

It may include a sensor monitoring unit 140 that receives sensing data from the integrated sensing module 120 and monitors whether the industrial production equipment is overloaded.

The sensor monitoring unit 140 is provided at one point of the integrated sensing module and can determine whether a temperature sensor that senses temperature is broken.

The sensor monitoring unit 140 may determine that the temperature sensor is broken when the average error (Aerr) of the temperature sensor calculated by the following [Equation 1] is greater than the preset limit error (Serr).

[Equation 1]

Here, Aerr is the average error, Taver is the overall average of the temperature sensor sensor values, Paver is the partial average for n temperature sensor values, and Tσ is the overall standard deviation of the temperature sensor sensor values.

More specifically, Taver is the overall average of the temperature sensor sensor values, and is a value calculated by collecting a large number of data during a preset period (ex. one month) during which the temperature sensor operates normally and calculating the overall average of the temperature values sensed. Means, Tσ means the value obtained by calculating the overall standard deviation of the temperature values sensed by collecting a large number of data during the preset period (ex. one month).

In addition, Paver is a partial average of the n temperature sensor values, and in the process of installing and using the temperature sensor in the field, a preset number (n) of temperature values are input in real time and the preset number (n) is received. The average of the temperature values is calculated, and since it corresponds to the average of some temperature values, it can be referred to as a partial average.

At this time, if the estimated average value is calculated with 95% confidence using partial averages, the estimated average value (μ) is It has a range.

Therefore, the average error (Aerr), which is the difference between the upper or lower limit of the estimated average value (μ) and the overall average (Taver), can be calculated as in [Equation 1] above.

Therefore, if the average error (Aerr) calculated by the above [Equation 1] is greater than the preset limit error (Serr), it means that the preset number (n) of temperature values input in real time are incorrect due to a failure of the temperature sensor. Since it means that there is a very high possibility that the temperature sensor is being input, the sensor monitoring unit 140 can determine that the temperature sensor is broken when the above conditions are satisfied.

In this case, the temperature sensor may include a notification unit 150 that can predict errors in peripheral devices and send inspection alarms to peripheral devices.

The notification unit 150 can deliver a warning message to the user in various forms such as a text message or alarm when there is a problem or overload of the industrial production equipment.

It may include a measurement cycle setting unit 160 that sets the measurement cycle of the load power generated from the industrial production equipment.

The measurement cycle setting unit 160 can selectively set the measurement cycle to one of time, date, month, or year so as to analyze the load at a specific point in time of the industrial production equipment. For precise analysis, the industrial production equipment is the most used. You can select the time used and compare it with preset data to analyze whether it is overloaded.

A central processing control unit 170 that integrates and processes the power usage for each load through the data measured by the integrated sensing module 120, outputs the necessary data through the display window of the server 130, and controls the industrial production equipment. ) may include.

The central processing control unit 170 can control the supply of power when the power usage of a specific load of the industrial production equipment exceeds or the power usage of the entire load exceeds.

More specifically, a main switch that can control the supply of external power is installed on the main power line that supplies power to the industrial production equipment from the outside, and each individual branch that branches off from the main power line and supplies power to each load. Auxiliary switches capable of controlling the supply of individually supplied power are installed in each supply line, and the operation of the main switch and the auxiliary switch is controlled by the central processing control unit 170, so that the power usage of the specific load is exceeded or If the power consumption of the entire load exceeds, the industrial production equipment can be shut off.

The server 130 may receive data from the integrated sensing module 120 and store load power information and usage patterns of the industrial production equipment.

Based on the network, it is possible to collect, store, and analyze data related to the equipment's failure, malfunction, and lifespan according to the power quality of the industrial production equipment.

At this time, the server 130 determines whether a real-time error has occurred in the industrial production equipment from the data received from the integrated sensing module 120 and a real-time error judgment unit that determines whether an error has occurred in the industrial production equipment based on big data/machine learning. It may include a failure prediction unit that predicts failure.

In addition, the server 130 may further include a manual providing unit that generates a failure response manual and transmits it to the manager when a failure of the industrial production equipment is predicted.

At this time, the manual providing unit may provide an operation method for responding to the failure in the form of VR content.

As described above, the present invention dualizes the energy collection and collection and transmission devices so that load information data collected from a plurality of energy metering devices 110 can be collected and processed using one integrated sensing module 120, We can provide power analysis devices that can rationalize product prices and simplify equipment installation.

In addition, the present invention can provide a power analysis device that can prevent failures in advance by providing machine learning-based failure prediction information using load information data of industrial production equipment.

Hereinafter, the detailed configuration and examples of the power saving device for industrial production equipment will be described in more detail with reference to FIGS. 2 to 28.

<MCT (Machining Center) data acquisition section>

Power data for each axis of the MCT can be obtained through EMD (energy metering device 110).

EMD can use low-cost, special-purpose devices that only provide power and communication.

Various information about MCT can be obtained through ISM (Integrated Sensing Module).

The data that ISM can acquire is the power, temperature and humidity, vibration, or various status information of the entire MCT (or each axis), and can be connected to EMD through wired or wireless communication such as Wifi/Ethernet/RF/RS485.

ISM is connected to the data platform through wired and wireless communications such as Wifi/Ethernet/RF/RS485/LTE, and can transmit data through multiple communications for stable data transmission.

<Full system>

Referring to Figure 2, an example of the entire system is as follows.

1. Data platform

It can be configured as an intranet or cloud server.

It can be connected to ISM through a gateway or gateway/signal converter.

When connected via RF or RS485, the signal converter can convert RF or RS485 data into data that can be interfaced with the gateway.

By allowing workers to enter repair details, they can be used to develop services such as MCT load analysis, failure prediction, and prognosis.

2. Service platform and user services

It is responsible for monitoring, analyzing, and checking failure history using various collected data, and can provide user services by building a web server, etc.

<Configuration of ISM (Integrated Sensing Module)>

ISM can measure the voltage/current/power factor and total active power/reactive power/apparent power/frequency and temperature of each phase of the Y-connected/connected power system, and displays the measured data on the LCD, and displays the measured data on the LCD and RS485/WIFI/Ethernet/ Data can be transmitted through communication via RF/LTE.

It also has 4 analog-to-digital conversion input channels, 2 RELAY channels, and 2 Digital Input channels that can receive signals using I2C communication.

<Composition of ISM>

Configuration of EMD (Energy Metering Device 110)

EMD can measure the voltage/current/power factor and total active power/reactive power/apparent power/frequency and temperature of each phase of the Y-connected/connected power system, and displays the measured data on the LCD and displays the measured data through RS485/WIFI/Ethernet/ Data can be transmitted through communication via RF/LTE.

EMD can use a low-cost version of ISM that only has the ability to measure power data and communicate with the ISM or server.

When measuring the power of only one channel, EMD can be used alone. When measuring the power of multiple channels, such as in a machining center, it can be used with multiple EMDs or a combination of EMD and ISM.

<EMD configuration diagram>

In a three-phase line, Va, Vb, and Vc are called phase voltages, and the voltage between lines, such as Vab, is called line-to-line voltage.

Industrial electricity is generally installed in a 3-phase 4-wire system or a 3-phase 3-wire system.

The three-phase, four-wire system is a wye connection, and the three-phase, three-wire system is a delta connection.

In delta connection, the phase-to-phase voltages Va, Vb, and Vc and the line-to-line voltages Vab, Vbc, and Vca are the same, so the line-to-line voltages are the same.

At this time, the delta connection is a 3-phase 3-wire system.

In the Y connection, the phase-to-phase voltages Va, Vb, and Vc and the line voltages Vab, Vbc, and Vca are not the same, and phase-to-phase voltage = *There is a relationship between line voltages.

At this time, the Y connection is a 3-phase 4-wire type.

Making 220V from 380V 3-phase 4-wire system

In a three-phase, four-wire system of 380V, the line-to-line voltages Vab, Vbc, and Vca are all 380V, and the phase-to-phase voltages Va, Vb, and Vc are all 220V.

Phase voltages Va, Vb, and Vc are the voltages between the N (Neutral) phase and the a, b, and c phases.

In a three-phase, four-wire 380V system, you can easily create three-phase 220V using the N phase.

If only one phase of three-phase 220V is used, it can become single-phase 220V.

Making single-phase 220V from 3-phase 3-wire 380V

Since there is no N phase in 3-phase 3-wire 380V, a transformer is required to make 220V like a Y connection.

Using a transformer, you can make three-phase 220V from three-phase three-wire 380V. If only one phase of three-phase 220V is used, it becomes single-phase 220V.

A device that can be commonly used for Y wiring and wiring is provided, and the details are as follows.

Diagram of the power measurement part of ISM and EMD

S-phase, IB+, and IB- can be selectively used using a 2x1 analog multiplexer (MUX, multiplexer).

Users can select Y connection, delta connection, and single phase using the app or web.

One device can be used as a single-phase, three-phase Y connection, or three-phase delta connection device.

Select S phase as the MCU's CTRL-S signal and IB+ and IB- as the CTRL-IB signal. - R, S, T, N represent the three-phase voltage and N-phase voltage, IA+/IA-, IB+/ IB- and IC+/IC- represent the current flowing in the R, S, and T phases, respectively.

If you select Y connection in the app or web, the MCU can output the CTRL-S signal and CTRL-IB signal high.

You can connect the S phase and VB of the POWER IC in the 2x1 MUX, and connect IB+, IB- and the IB of the POWER IC in the 2x1 MUX.

If you select a connection in the app or web, the MCU can output the CTRL-S signal and CTRL-IB signal low.

In the 2x1 MUX, the S phase and VB of the POWER IC can be disconnected, and in the 2x1 MUX, IB+, IB- and the IB of the POWER IC can be disconnected.

How to transmit power and status data measured by ISM or EMD to the server (communication protocol)

Data measured by ISM or EMD can be received from the server via RS485 / WIFI / Ethernet / RF / LTE.

Voltage and frequency can be converted to integer values by multiplying the value to be transmitted by 100 and transmitted. (ex. When transmitting 0.01, transmit 0x0001)

Current and power can be transmitted by multiplying the value to be transmitted by 1000 and changing it to an integer value. (ex. When transmitting 0.001, transmit 0x0001)

The power factor can be converted to an integer value by multiplying the value to be transmitted by 1000 and transmitted. Also, since it is a signed value, a signed data value is transmitted (negative values are expressed as 2's complement) (ex. When transmitting 0.001, 0xFFFF is transmitted)

Power data correction program from ISM or EMD

When measuring the voltage/current of each phase of the power system through ISM or EMD, if the measured voltage/current value differs from the actual voltage/current value, use the Calibration Program to change the measured voltage/current value to the actual voltage/current value. Correct it to be equal to .

<Calibration Program Example 1>

a. For power data correction, Calibration Program and GLPIOT can be connected through RS485 communication.

Enter COM Port and Baud Rate and press Connect Start to attempt connection.

If the connection is successful, a message such as CONNECTED:COM5:9600 appears as shown in the example.

<Calibration Program Example 2>

b. After successful connection, click Get Data to retrieve the measured voltage/current from GLPIOT.

To correct the measured voltage/current, enter the reference voltage/current and press Calibration Start to start correction.

<Calibration Program Example 3>

c. After automatically calculating the voltage/current gain using the voltage/current gain calculation formula below, complete correction by recording the calculated voltage/current gain in the gain register.

After completing the calibration, click Get Data to check whether the calibration of the measured voltage/current has been completed properly.

How to ensure communication stability

By using both wired and wireless communications such as RS485 / WIFI / Ethernet / RF / LTE, which have their own characteristics, the power data measured by ISM/EMD can be stably read to the SERVER. In addition, relay control and wiring settings of ISM can be performed on the SERVER. possible.

Depending on the communication environment in the industrial field, the data transmission speed may become slow, making it impossible to transmit data at the exact set time.

If data loss occurs on the server that analyzes data, accurate analysis may not be possible.

Existing products transmit data through a single wireless communication, so data loss often occurs.

When transmitting data through wired communication, the probability of data loss is low, but cable installation is necessary to establish a communication line.

Since the present invention includes various wired and wireless communication methods, a communication environment can be established with various communication combinations depending on the communication environment of the industrial site.

How to select transmitted data

When requesting data simultaneously using five types of communication (RS485 / WIFI / Ethernet / RF / LTE) (transmitting the same index value included in the data), once the first normal data request is received from ISM/EMD, the next data request is Ignore everyone.

When responding with data, as in the case of a request, once the first normal data response is received from the SERVER, all subsequent data responses are ignored.

Data communication mode

Basically, all five types of communication are used: RS485 / WIFI / Ethernet / RF / LTE, but ISM/EMD supports five communication modes, so you can select the communication you want to use.

There are 11 communication modes in total, and the communication mode can be selected through app or web.

The power saving device 200 may include a power demand prediction unit 210, a load management unit 220, and a voltage regulator 230.

The power demand prediction unit 210 receives data on the power consumption and use or operation status of each industrial production equipment collected from the integrated sensing module 120 from the server 130 and calculates the data to the power consumption of all industrial production equipment. The expected demand can be calculated.

The power demand prediction unit 210 can observe the usage patterns of the industrial production equipment and collect statistics to predict expected usage time and load demand.

The load management unit 220 may set a management target amount including target power consumption and load management time of the industrial production equipment based on the expected demand calculated by the power demand prediction unit 210.

It is possible to monitor the power demand of the industrial production equipment in real time according to the preset management target, calculate the possible load scale by collecting each of the industrial production equipment, and effectively perform load management based on this.

The load management unit 220 can set priorities for loads that can be moved or blocked during usage times among the industrial production equipment, and manage them to sequentially use a preset management target power amount according to the priorities.

The voltage regulator 230 is composed of a plurality of capacitive reactances and a plurality of switching elements corresponding thereto. The capacitive reactances are connected in series, parallel, or series-parallel, and each capacitive reactance has a corresponding switching element. The elements are connected in series.

Therefore, the voltage input through the power supply is divided according to the switching state of the switching element, so that the optimal voltage is supplied in response to the required output of the industrial production equipment.

That is, by supplying the series-divided voltage by the series impedance value of the branched capacitive reactance to the industrial production equipment, the load output can be adjusted without loss and the operation can be controlled.

The switching element may be controlled by a control signal applied from a remote location through a wired or wireless communication network, or may be controlled by a separate input value (an input value based on information received from an integrated sensing module).

Accordingly, the voltage can be adjusted according to the load status of the industrial production equipment, or the user can selectively adjust the voltage to supply a voltage corresponding to the required output of the industrial production equipment to save power.

As described above, although one embodiment of the present invention has been described with limited examples and drawings, one embodiment of the present invention is not limited to the above-described embodiment, which is based on common knowledge in the field to which the present invention pertains. Anyone who has the knowledge can make various modifications and variations from this description. Accordingly, one embodiment of the present invention should be understood only by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof shall fall within the scope of the spirit of the present invention.

111, 112, 113: Energy metering device (110)
120: Integrated sensing module
130: server
200: Power saving device
210: Electricity demand forecasting department
220: Load management department
230: Voltage regulator

Claims (5)

A plurality of energy metering devices that collect at least one of active power, reactive power, phase-to-phase voltage, line-to-line voltage, power factor, and phase of industrial production equipment;
An integrated sensing module that collects data collected from the energy metering device and transmits it to a server;
a server that receives data from the integrated sensing module and stores load power information and usage patterns of the industrial production equipment;
a sensor monitoring unit that receives sensing data from the integrated sensing module and monitors whether the industrial production equipment is overloaded;
A central processing control unit that integrates and processes power usage for each load through data measured by the integrated sensing module, outputs necessary data through a display window of the server, and controls the industrial production equipment;
A power demand forecasting unit that receives data on power consumption and use or operation status of each industrial production equipment collected from the integrated sensing module from the server and calculates expected demand for power consumption of all industrial production equipment;
a load management unit that sets a management target amount including target power consumption and load management time of the industrial production equipment based on the expected demand calculated by the power demand forecasting unit; and
A power saving device for industrial production equipment comprising a voltage control unit in which a plurality of capacitive reactances are connected in series, parallel, or series-parallel, and has switching elements connected in series with each of the capacitive reactances to adjust the voltage. According to paragraph 1,
The load management department,
Among the industrial production equipment, priorities are set for loads that can be moved or blocked during use times, and management is performed to use a preset management target power amount sequentially according to the priority. Device. According to paragraph 2,
The voltage regulator,
Power saving of industrial production equipment, characterized in that the voltage is adjusted according to the load status of the industrial production equipment, or the user selectively adjusts the voltage and supplies a voltage corresponding to the required output of the industrial production equipment to save power. Device. According to paragraph 3,
The sensor monitoring unit,
When the average error (Aerr) of the temperature sensor provided at one point of the integrated sensing module to sense the temperature and the average error (Aerr) of the temperature sensor calculated by the following [Equation 1] is greater than the preset limit error (Serr), the temperature sensor A power saving device for industrial production equipment, characterized in that it is determined to be broken.
[Equation 1]

(Here, Aerr is the average error, Taver is the overall average of the temperature sensor sensor values, Paver is the partial average for the n temperature sensor sensor values, and Tσ is the overall standard deviation of the temperature sensor sensor values.) According to clause 4,
The server is,
a real-time error determination unit that determines whether a real-time error has occurred in the industrial production equipment based on data received from the integrated sensing module; and
It includes a failure prediction unit that predicts failure of the industrial production equipment based on big data and machine learning,
When a failure of the industrial production equipment is predicted, it further includes a manual providing unit that generates a failure response manual and transmits it to the manager,
The central processing control unit,
A power saving device for industrial production equipment, characterized in that controlling the supply of power when the power consumption of a specific load of the industrial production equipment or the power consumption of the entire load exceeds the power consumption.