KR102039851B1 - Energy management system using thermal image - Google Patents

Abstract

An energy management system of the present invention comprises: a substrate; an input terminal for receiving input power; energy storage elements disposed on the substrate and storing the input power; an output terminal for supplying power stored in the energy storage elements to a load; a thermal imaging camera for photographing the energy storage elements disposed on the substrate and generating a thermal image according to temperature distribution; a control module for analyzing the thermal image to determine an overheating state of the energy storage elements and generating a control signal to block an electrical connection between the energy storage elements which are overheated over a predetermined range and the input and output terminals; and a switching module for blocking a connection between the overheated energy storage elements and the input and output terminals to correspond to the control signal of the control module, wherein the energy storage elements are coupled to the substrate to be replaceable.

Description

Energy management system using thermal imagery {ENERGY MANAGEMENT SYSTEM USING THERMAL IMAGE}

The present invention relates to an energy management system using a thermal image, and more particularly, to an energy management system that analyzes a thermal image of an energy storage device to control power operation.

Thermal imaging cameras are devices that detect infrared rays emitted from an object in a non-contact manner, and display colors by distinguishing colors for each temperature. Such thermal imaging cameras are recently used in diagnosing overheating conditions of equipment in the field of facility maintenance.

In the power distribution system such as transformer, switchgear, insulator, lightning arrester, and cut-out switch (COS), overheating can occur due to complex reasons such as environmental, mechanical, thermal, and electrical deterioration. It is necessary to periodically check the deterioration state using the camera.

Power equipment deterioration diagnostic method using a thermal imaging camera is a method of measuring the temperature of the power equipment with a thermal imaging camera, and if the temperature is above a certain temperature is determined as deterioration. However, temperature measurement by infrared cameras can cause a lot of errors depending on the ambient temperature, humidity, wind speed, emissivity of the object, focusing of the camera, object and distance, as well as problem of directly identifying the thermal image with the human eye. There is a hassle to judge.

The technical problem to be solved by the present invention is to provide an energy management system using a thermal image that can be prevented in advance, such as fire, explosion due to overheating of the electrical element without a separate management.

In order to achieve the above object, the energy management system of the present invention, a substrate, an input terminal supplied with input power, energy storage elements disposed on the substrate to store the input power, and the energy storage element An output terminal for supplying power stored in the load to the load, a thermal imaging camera for photographing energy storage elements disposed on the substrate to generate a thermal image according to a temperature distribution, and analyzing the thermal image to analyze the energy storage element. A control module configured to determine an overheating state of the control unit and to generate a control signal to cut off an electrical connection between the overheated energy storage element and the input and output terminals beyond a preset range, and in response to the control signal of the control module. Switching module for blocking the connection between the overheated energy storage element and the input and output terminals And also, the energy storage device is coupled to the substrate replacement.

According to an embodiment, the energy management system may further include a housing accommodating the substrate, and the thermal imaging camera may be fixed to the housing in a direction facing the substrate.

According to an embodiment of the present disclosure, the control module may divide the thermal image into a plurality of regions according to a predetermined reference to correspond to each region and each of the energy storage elements.

According to an embodiment of the present disclosure, the control module may determine an overheat state of the energy storage device by comparing the measured temperature of each of the plurality of regions and the reference temperature for each region.

According to an embodiment, the switching module cuts off the connection between the overheated energy storage device and the input and output terminals, and electrically connects the input and output terminals and the preliminary energy storage device disposed on the substrate. Can connect

According to an embodiment, the energy storage device may have a locking portion protruding from an end of the lead wire to elastically couple to the coupling groove of the substrate.

According to the energy management system using the thermal image according to an embodiment of the present invention, even if the user does not separately check the overheating state of the electrical element, it is possible to automatically determine the overheating state of the electrical element, By breaking the device's electrical connections, it is possible to prevent the risk of explosion or fire.

1 is a diagram of an energy management system using a thermal image according to an exemplary embodiment of the present invention.
2 and 3 are views for explaining an energy management method using a thermal image according to an embodiment of the present invention.
4 is a view illustrating an energy storage device in which a locking portion protrudes from an end of a lead wire according to an exemplary embodiment of the present invention.
5 is a view illustrating a state in which an energy storage device is interchangeably coupled to a substrate according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are merely to describe in detail enough to be able to easily carry out the invention by those skilled in the art, the scope of protection of the present invention is limited It does not mean. In describing the various embodiments of the present disclosure, the same reference numerals will be used to refer to elements having the same technical features.

1 is a diagram of an energy management system using a thermal image according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the energy management system 100 according to an embodiment of the present invention includes a substrate SUB and a thermal imaging camera CA for photographing electrical elements disposed on the substrate SUB.

The substrate SUB may include a circuit pattern for electrically connecting electronic elements such as a resistor, a capacitor, and an integrated circuit, and may be disposed in a fixed state on one side of the inside of the housing HO. For example, the substrate SUB may be a rigid type or a flexible type as a printed circuit board.

In addition, on the substrate SUB, electrical elements, for example, an input terminal IP to receive input power, an energy storage element CD for storing the input power, and an output for supplying power stored in the energy storage element CD to the load. The terminal OP and the ground terminal GND may be disposed.

Here, the energy storage device CD refers to a series of devices capable of storing power. For example, the energy storage device (CD) is any one of a capacitor, an inductor, a lithium ion battery (LiB), a sodium sulfur battery (NaS), a redox flow battery (RFB), a supercapacitor, a flywheel device, and a compressed air storage device. Can be. However, the energy storage device CD is not limited to the above examples, and may mean all devices capable of storing energy.

The thermal camera CA may generate a thermal image according to a temperature distribution by tracking a target heat. For example, the thermal imaging camera CA may be either an infrared camera or an ultraviolet-infrared camera.

The thermal imaging camera CA may be fixed to the housing HO in a form of facing the substrate SUB, and may generate a thermal image by photographing electrical elements disposed on the upper surface of the substrate SUB. The thermal camera CA may generate a thermal image in real time or at a predetermined period, and may provide the generated thermal image to the control module CM.

Meanwhile, in the present exemplary embodiment, the thermal imaging camera CA captures a thermal image in a direction perpendicular to the substrate SUB, but the present disclosure is not limited thereto. A thermal image of the devices disposed on the lower surface of the substrate SUB may be generated. In this case, a separate distance sensing sensor may be used to consider the distance between the thermal imaging camera CA and the elements.

Since the substrate SUB and the thermal imaging camera CA are disposed in a fixed state in the housing HO, even if the thermal imaging camera CA generates a plurality of thermal imaging images, the electrical elements are the same in each thermal imaging image. The composition will be included in the same location.

The control module CM may determine the overheat state of the electrical devices by analyzing the thermal image provided from the thermal camera CA.

First, the control module CM may divide the thermal image into a plurality of image areas according to a predetermined condition, and correspond to each of the divided image areas and the electrical elements arranged in the corresponding area. Since the thermal elements include electric elements in the same position in the same composition, the control module CM can correspond to each region in a fixed manner.

In addition, the control module CM may determine the temperature of the electrical elements according to the color of the thermal image. In addition, the control module CM may individually determine temperatures of each of the regions included in the thermal image, and determine the temperatures of the electrical elements corresponding to the regions based on the determined temperatures.

For example, when the control module CM analyzes the color of the thermal image and determines that the temperature of the first region is 80 ° C., the temperature of the energy storage element disposed at the position corresponding to the first image area is 80 ° C. do.

According to an embodiment, when a plurality of colors are mixed and displayed in one image area, the control module may analyze the colors included in the image area to determine the temperature of the image area at a temperature corresponding to an average of the highest and lowest temperatures among the images. have.

According to another embodiment, when a plurality of colors are mixed and displayed in one image area, the control module may determine the temperature of the color included in the image area at the largest ratio as the temperature of the corresponding image area.

The control module CM may determine the overheat state of the electric device by comparing the determined temperature with a reference temperature for each electric device. The control module CM may compare the temperature of the electric elements and the reference temperature for each electric element individually, and determine that the electric element is overheated when it is higher than the reference temperature.

Electric element type Reference temperature Condenser 75 ℃ fuse 80 ℃ Transformers 78 ℃ Switch module 50 ℃

For example, referring to Table 1, the control module CM corresponds to each region of the thermal image and a capacitor, a fuse, a transformer, and a switch, and then, based on the temperature of each region, the control module CM The temperature can be determined. Here, the reference temperature of the capacitor is 75 ℃, the reference temperature of the fuse is 80 ℃, the reference temperature of the transformer is 78 ℃, the reference temperature of the switch module is 50 ℃.

If the control module CM analyzes the thermal image and determines the temperature of the condenser disposed on the substrate SUB to be less than 75 ° C., the condenser may be determined to operate at a normal temperature. However, when the temperature of the condenser is determined to be higher than 75 ° C., it may be determined that the condenser is in an overheated state.

On the other hand, the reference temperature according to the type of the electric element of Table 1 is merely described by way of example for convenience of description of the invention, it is not limited to this value of the reference temperature may be variously changed.

The control module CM may generate a control signal by analyzing the thermal image to cut off the connection between the electric element determined to be overheated and other electric elements. Since the preliminary electric elements having the same function as the electric elements are disposed on the substrate SUB, the control module CM cuts off the electrical connection of the electric element that is determined to be overheated and makes electrical connections to the preliminary electric elements. Can be activated.

For example, when it is determined that any one of the energy storage elements disposed on the substrate SUB is in an overheated state, the control module CM blocks the electrical connection of the overheated energy storage element CD, and the preliminary energy storage element. A control signal can be generated to activate the electrical connection of the.

The switching module SW cuts off the electrical connection of the electric element in the overheat state and activates the electrical connection of the preliminary electric element in response to a control signal provided from the control module.

For example, the switching module SW may cut off the electrical connection of the energy storage element CD in the overheat state and activate the electrical connection of the preliminary energy storage element in response to a control signal provided from the control module CM.

2 and 3 are views for explaining an energy management method using a thermal image according to an embodiment of the present invention.

Referring to FIG. 2, a photographing screen in which the thermal imaging camera CA faces the substrate SUB is illustrated. Since the thermal imaging camera CA can fix and photograph the substrate SUB in a vertical direction, the electrical elements included in the thermal imaging image are displayed at the same composition and the same position.

The thermal imaging camera CA may divide the thermal image into a plurality of regions according to a preset method, and the temperature of each region may be determined as the temperature of the electric element.

For example, the temperature determined in the first to fourth regions AR1 to AR4 is determined as the temperature of the first to fourth energy storage elements CD1 to CD4, and the temperature determined in the fifth region AR5 is The temperature of the terminal unit including the input and output terminals IP and OP and the ground terminal GND may be determined, and the temperature determined in the sixth region AR6 may be determined as the temperature of the switching module SW.

Referring to FIG. 3, a thermal image IM of a substrate SUB taken by a thermal imaging camera CA is illustrated. Here, only the third and fourth energy storage elements CD3 and CD4 of the first to fourth energy storage elements CD1 to CD4 may be electrically connected to store power, and the first and second energy storage elements may be used. CD1 and CD2 are assumed to be operated as a spare energy storage element.

The control module CM may analyze the thermal image IM to determine whether the temperatures of the third and fourth energy storage elements CD3 and CD4 are in an overheated state. For example, when the reference temperature of the energy storage element CD is 75 ° C., the control module CM analyzes the thermal image IM to determine the temperature of the third energy storage element CD3 as 60 ° C. The temperature of the energy storage element CD4 may be determined to be 80 ° C. Therefore, the control module CM may determine the third energy storage element CD3 as a normal state, but may determine the fourth energy storage element CD4 as an overheated state.

Thereafter, the control module CM blocks the electrical connection of the fourth energy storage element CD4 and provides a control signal for activating the electrical connection of the first energy storage element CD1 or the second energy storage element CD2. Can be generated.

The switching module SW cuts off the electrical connection of the fourth energy storage element CD4 in response to a control signal provided from the control module CM, and switches the first energy storage element CD1 or the second energy storage element CD2. Can activate the electrical connection.

Energy management system 100 using a thermal image according to an embodiment of the present invention, even if the user does not separately check the overheat state of the electrical element, it is possible to automatically determine the overheat state of the electrical element, it is determined as the overheat state By cutting off the electrical connections of the used electrical components, it is possible to prevent the risk of explosion and fire.

4 is a view illustrating an energy storage device having a protrusion protruding from an end of a lead wire according to an exemplary embodiment of the present invention, and FIG. 5 is a view showing that the energy storage device is interchangeably coupled to a substrate according to an exemplary embodiment of the present invention. One drawing.

Meanwhile, according to an exemplary embodiment of the present disclosure, when the overheating of the energy storage device CD is determined, the energy storage device CD may be easily replaced and mounted on the substrate SUB.

To this end, as shown in FIG. 4, the lead wires 10 of the lower end of the energy storage device CD each include a pair of lead members 11 facing each other at a predetermined interval, and each lead member 11 is provided. At the lower end, a locking part 12 having a locking step 13 is formed to protrude outward. For example, the locking portion 12 may be formed in the shape of a semi-cone that becomes narrower toward the bottom.

In this case, as shown in the left figure of FIG. 5, a pair of lead members 11 are respectively inserted into the coupling grooves 20 of the substrate SUB, and the pair of lead members 11 face each other. It is retracted while elastically deformed.

When the engaging portion 12 of the lead member 11 penetrates the coupling groove 20 of the substrate SUB, the pair of lead members 11 are opened to the outside by elastic restoring force, and at this time, The latching jaw 13 is supported on the bottom surface of the substrate SUB, thereby preventing the energy storage device CD from being separated from the substrate SUB.

On the other hand, when the energy storage device (CD) is separated, a pair of lead members (11) protruding under the substrate (SUB) is recessed into the coupling groove (20), thereby overheating the energy storage device (CD). ) Can be easily separated from the substrate SUB.

While the embodiments of the present invention have been described above, it will be understood by those skilled in the art that various modifications may be made without departing from the scope of the claims.

HO: housing
SUB: Substrate
CA: thermal imaging camera
CD: energy storage element
CM: control module
SW: switching module
IP: input terminal
OP: output terminal
GND: ground terminal

Claims (6)

A substrate disposed fixed to one side of the housing;
An input terminal receiving input power;
Energy storage elements disposed on the substrate to store the input power;
An output terminal for supplying power stored in the energy storage element to the load;
A thermal imaging camera which is fixedly disposed in the housing in a form of facing the substrate, photographs the energy storage elements disposed on the substrate, and generates a thermal image according to a temperature distribution, and is implemented as an ultraviolet / infrared camera;
A distance sensor for sensing a distance between the energy storage elements and the thermal imaging camera;
Analyzing the thermal image in consideration of the detected distance to determine an overheat state of each of the energy storage elements, and blocking an electrical connection between the energy storage element overheated above a predetermined range and the input and output terminals. A control module for generating a control signal; And
A switching to cut off the connection between the overheated energy storage element and the input and output terminals in response to a control signal of the control module and to electrically connect the input and output terminals to a preliminary energy storage element disposed on the substrate. Including modules,
The energy storage elements are protrudingly formed at the ends of the lead wires so as to be elastically coupled to the coupling grooves of the substrate so that the energy storage elements are electrically coupled to the substrate, and the electrical connection is activated to electrically store the input power. A second energy storage element which is disconnected so that the input power is not supplied;
The control module,
The thermal image is divided into a plurality of regions according to a predetermined criterion, and the plurality of regions and the first and second energy storage elements are individually corresponded to each other, and the largest portion is included in each of the plurality of regions. The temperature of the color is determined as the temperature of the energy storage element corresponding to each of the plurality of regions,
Determining an overheat state of the first and second energy storage elements by comparing the measured temperature of each of the plurality of regions and the reference temperature for each region,
When it is determined that the temperature of the region corresponding to the first energy storage device is higher than the reference temperature, the electrical connection of the first energy storage device is interrupted and the electrical connection of the second energy storage device is activated to activate the first energy storage device. 2 An energy management system using a thermal image that supplies the input power to an energy storage element. delete delete delete delete delete

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