KR20140127053A - Power device's test apparatus and test method for it - Google Patents

Abstract

The present invention relates to an apparatus for testing a power generating device and a testing method thereof, capable of easily and quickly determining whether a power generating device is defective and a specific rating of a power generating device. In the apparatus for testing a power generating device and a testing method thereof according to the present invention, a power generating device is fixed to a jig, a temperature difference is provided thereto, and internal resistance of the power generating device is measured to determine whether the power generating device is defective or not, whereby a large amount of power generating devices can be quickly and accurately determined to be normal or defective, and thus, since only normal power generating devices can be selected and ratings thereof can be determined afterwards, efficiency and accuracy of testing can be enhanced. Also, in the apparatus for testing a power generating device and a testing method thereof according to the present invention, only power generating devices determined to be normal are selected, a load is electronically provided thereto in an environment in which a temperature difference is provided, and thereafter, data of the power generating devices are obtained and specific rankings of the power generating devices are determined, whereby specific ratings of a large amount of power generating devices can be quickly and accurately determined and the power generating devices are managed accordingly, and productivity of the power generating devices of each rating can be enhanced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test apparatus for a power plant,

TECHNICAL FIELD The present invention relates to a test apparatus for a power plant and a test method for easily and quickly discriminating defective products and detailed grades of the power plant.

Generally, in order to produce electricity, hydroelectric power, thermal power, nuclear power, wind power, solar heat, solar power, and geothermal power generation are used. However, energy sources such as wind power and solar power, The output is uneven and is not widely used.

However, for shipbuilders in the European shipbuilding industry, the shipbuilding industry is engaged in the development of power generation technologies because it receives applications for products that use power plants using waste heat, which is new and renewable energy. In addition, And the development of power generation technology using it.

In the future, the development of application products using waste heat power generating heat in the technology fields using fossil fuels such as ships and automobiles as well as cutting-edge fields such as space engineering is rapidly progressing, and marketability of power plants used for waste heat generation is increasing It seems to go.

Such a power plant utilizes a control back effect, which is a control effect created by joining both ends of two different types of metal and providing a temperature difference between the two ends of the metal.

1 is a diagram illustrating a general power plant. The power generation element 10 is formed of a P-type semiconductor 11 and an N-type semiconductor 12 with different metals. The P-type semiconductor 11 and the N-type semiconductor 12 ) Are connected to each other by lead (13) are connected in series to generate electromotive force.

However, since the conventional power plant is under development of technology, the test apparatus is not commercialized, and accordingly, a test apparatus for identifying the product is not developed.

Korean Patent No. 369298 discloses a thermoelectric module life test apparatus capable of testing the life of a thermoelectric generator in consideration of thermal expansion characteristics, thermal stress, and fluid used due to temperature difference between both ends of the thermoelectric generator, have.

More specifically, the conventional thermoelectric power module life test apparatus is designed to control the cooling / heating supply device, the opening / closing device, and the control device so that circulation of the coolant / hot water circulated to the first and second tubes, So that the temperature difference can be precisely adjusted.

However, although the life test apparatus of the conventional thermoelectric module can provide a repetitive temperature difference to the power generation element, it is possible to test the life span of the power generation element. However, it is difficult to identify a defective product among the mass produced power generation elements, There is a problem that the evaluation as described above is unnecessary and can not be accurately evaluated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a test apparatus for a power plant capable of quickly and accurately discriminating defective products in a power plant and a test method thereof.

It is another object of the present invention to provide a testing apparatus for a power plant capable of discriminating a normal rated power plant and a test method thereof.

The present invention relates to a testing device for a power plant for testing a power plant generating an electromotive force by providing a temperature difference at both ends, the apparatus comprising: a jig for fixing both ends of the power generation element, A heating device connected to the jig to heat one end of the power plant; A cooling device connected to the jig to cool another end of the power plant; An internal resistance measurer capable of measuring an internal resistance of the power plant; An interface unit connecting the circuit of the power plant with the internal resistance meter; And a controller that is provided to be able to communicate with the heating device, the cooling device, and the internal resistance meter, and while controlling the operation of the heating device and the cooling device, while providing a temperature difference in a set range to the power generation device, And determining whether the power plant is normal or not based on the comparison result.

Further, the present invention may further comprise an electronic load connected to the power generation element by the interface and electronically loading the power generation element to consume electromotive force generated in the power generation element, Current, and power of the power plant during the operation of the load, and determines the product class according to the voltage of the power plant.

According to another aspect of the present invention, there is provided a method of controlling a temperature of a power plant, A second step of providing a temperature difference within a set range to both ends of the fixed power plant in the first step; A third step of measuring an internal resistance of a power plant provided with a temperature difference in the second step; And a fourth step of comparing the internal resistance measured value of the power plant measured in the third step with a reference value to determine whether the power plant is normal or not.

In addition, the present invention provides a method for controlling a power generation device, comprising: a fifth step of electronically providing a load to a power generation device determined to be normal in the fourth step to consume electromotive force generated in the power generation device; And a sixth step of acquiring data from the power generation element and determining a product class of the power plant while the power plant consumes the electromotive force in the fifth step.

The apparatus and method for testing a power plant according to the present invention can fix a large number of power plants quickly or accurately by fixing a power plant to a jig, then providing a temperature difference, measuring the internal resistance of the power plant, Therefore, it is possible to select only the normal power plant and to classify it in the future, which is advantageous in increasing the test efficiency and accuracy.

In addition, the apparatus for testing a power plant according to the present invention and the test method thereof can select only the normally identified power plant, electronically load the system under a given temperature difference, obtain the data of the power plant, It is possible to discriminate and manage the power plant with a rapid / accurate detailed grade, and it is advantageous to increase the productivity of the power plant by grade.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Fig. 2 is a configuration diagram showing a device for testing a power plant according to the present invention. Fig.
3 is a perspective view showing a jig applied to a test apparatus for a power plant according to the present invention.
4 is a flowchart showing a method of testing a power plant according to the present invention.
5 is a view showing an example of a result screen according to a method of testing a power plant according to the present invention.

Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. It should be understood, however, that the scope of the inventive concept of the present embodiment can be determined from the matters disclosed in the present embodiment, and the spirit of the present invention possessed by the present embodiment is not limited to the embodiments in which addition, Variations.

3 is a perspective view of a jig applied to an apparatus for testing a power plant according to the present invention.

2 to 3, the apparatus for testing a power plant according to the present invention includes a jig 110, a heating device 120, a cooling device 130, an internal resistance meter 140, an interface 150 An electronic load 160, and a control unit 170. The control unit 170 includes a control unit 170,

The jig 110 is configured to be able to fix both ends of the power generation device 100 provided with a temperature difference with a predetermined force.

More specifically, the jig 110 includes two plates 111 and 112 for accommodating the upper and lower ends of the power generation device 100, and a heating plate 111 And a cooling plate 112 provided below the power generation device 100. The heating plate 111 and the cooling plate 112 may be formed of a low-cost aluminum It can be made of material.

In this case, the pressure of the bonding surface can be adjusted by adjusting the distance between the heating plate 111 and the cooling plate 112. The moving plate 113 is provided on the upper side so as to be interlocked with the heating plate 111, And the movable plate 113 is installed so as to be movable up and down by a separate up and down regulating part 114. Between the heating plate 111 and the moving plate 113, May be provided.

When the power generating device 100 is mounted on the cooling plate 112, the heating plate 111 is lowered and the heating plate 111 is positioned on the cooling plate 112 The power generating device 100 which is in contact with the heating plate 111 and the cooling plate 112 under a constant pressure can be uniformly heat-exchanged.

The heating device 120 is configured to be able to heat the heating plate 111 to a predetermined temperature.

More specifically, the heating device 120 includes a heating line 121, a power line 122 for supplying power to the heating line 121, a power line 122 for supplying power to the heating line 121, And a temperature controller 123 that adjusts the power supplied to the power supply 122.

The temperature controller 124 may further include a heating temperature sensor 124 for sensing the temperature of the heating plate 111. The temperature controller 123 may control the supply power Can be adjusted.

The cooling device 130 is configured to cool the cooling plate 112 to a predetermined temperature.

More specifically, the cooling device 130 includes a cooling pipe 131 having a uniform spacing in the cooling plate 112, a water inlet pipe 132a for supplying or recovering a cooling fluid to the cooling pipe 131, And a circulation pipe 133 connected to the water inlet pipe 132a and the water outlet pipe 132b for circulating the cooling fluid.

At this time, the circulant 133 is supplied with various components for cooling the cooling fluid, the cooling fluid is supplied to the water inlet pipe 132a, and then, And the like may be embedded therein, but are not limited thereto.

The heating element 100 is fixed between the heating plate 111 and the cooling plate 112 and then the heating plate 111 is heated by the heating wire 121 and the cooling tube 131 is heated, When the cooling plate 112 is cooled by the circulating cooling fluid, a predetermined temperature difference is provided between the upper and lower ends of the power generation device 100 as heat is transferred through the heating plate 111 and the cooling plate 112 And is operated to generate an electromotive force in the power generation device 100.

The internal resistance meter 140 is connected to the circuit of the power generation device 100 by the interface 150 to measure the internal resistance of the power generation device 100. Of course, since the electric power generating element 100 is also an electric element, it has inherent internal resistance.

Therefore, by measuring the internal resistance of the power generation device 100 by the internal resistance meter 140 and comparing it with a reference value, the power generation device 100 can be determined to be normal or defective.

At this time, if the internal resistance measurement value of the power generation device 100 is determined to be within the set value, the power generation device 100 is determined to be normal. However, if the internal resistance measurement value of the power generation device 100 is much larger than the set value, The power generation element 100 can be determined as defective. Of course, a power plant determined to be defective can omit the process of determining the detailed grade to be performed in the future, so that a large number of power plants can be identified quickly or accurately as normal or defective.

The electronic load 160 is connected to the circuit of the power generation device 100 by the interface 150 in the same manner as the internal resistance measuring device 140 and provides an electronic load to the power generation device 100 The electromotive force of the power generation device 100 can be electrically consumed.

At this time, it is preferable to control by PWM (Pulse Width Modulation) method in order to soft start even if the electric load 160 is electronically supplied to the power generation element 100. In this PWM type control May be implemented by repeating an On / Off operation at a short time interval by an electronic switch built in the interface 150.

Therefore, when the electronic load 160 sets a set current to supply a load to the power generation device 100 to consume power, the electronic load 160 measures the voltage as the voltage is varied in the power generation device 100, 100) can be compared with the set value for each product to determine the grade. Of course, the lower the voltage measurement value of the power generation element 100, the lower the rating can be.

The controller 170 is a kind of computer and can be multiplexed using ID (Identification) with the temperature controller 123, the circulator 133, the internal resistance meter 140, the electronic load 160, .

For example, the controller 170 can physically use Ethernet using RS-232, RS-485, and TCP / IP with various devices, and can communicate securely and quickly through each protocol.

Accordingly, the control unit 170 can transmit control values to various devices, receive measurement values or data, and can determine normal or defective and rating based on the data, store various data and information have. At this time, the controller 170 controls the temperature difference provided at both ends of the power generation device 100, the internal resistance, current, voltage, power measured by the power generation device 100, And the like can be stored.

4 is a flowchart showing a method of testing a power plant according to the present invention.

2 and 4, a method of testing a power plant according to the present invention will be described. First, the power generation device 100 is fixed (see S1)

Both ends of the power generation device 100 are fixed to contact with the heating plate 111 and the cooling plate 112 so as to cause heat transfer and are connected to each other by the temperature difference? T provided to the power generation device 100 through heat transfer Electromotive force may occur.

Next, the heat wire 121 and the circuler 131 are operated to provide a predetermined temperature difference? T to both ends of the power generation device 100 (see S2, S3, S4, and S4)

As the heating plate 111 is heated, one end of the power generating device 100 in contact with the heating plate 111 can be heated up to the set heating temperature Th, and the circulant 133 is operated The other end of the power generating device 100 in contact with the cooling plate 112 can be cooled down to the set cooling temperature Tc as the cooling plate 112 is cooled. Of course, the temperature difference can also be varied by varying the set heating temperature Th and the set cooling temperature Tc, and the temperature difference? T can be variously changed according to the setting of the user or the product.

Accordingly, a predetermined electromotive force is maintained as the temperature difference DELTA t is provided in both ends of the power generation device 100 within the set range.

Next, the internal resistance R of the power generation element 100 is measured, and the measured internal resistance R is compared with the reference internal resistance Ro to determine whether it is normal or defective. (See S6, S7, S8, and S9)

The internal resistance meter 140 may measure the internal resistance R of the power generation device 100 as it is connected to the circuit of the power generation device 100 through the interface 150, (R) of the power generation device 100 and compares the measured internal resistance R with a reference internal resistance Ro.

At this time, if the measured internal resistance R of the power generating device 100 is smaller than the reference internal resistance Ro, it is determined that the measured internal resistance R of the power generating device 100 is normal, ), It is judged to be defective, and data judged as normal or defective is also stored.

Of course, the defective power generation device 100 does not proceed with the detailed grade determination to be performed in the future, and only the normal generation device 100 proceeds to determine the detailed grade.

Next, an electronic load is provided to the power generation element 100 determined to be normal, and the data of the power generation element 100 is acquired while the electronic load is provided to determine the detailed grade (see S10, S11, and S12).

The electronic load 160 electronically provides a load to the power generation device 100 as it is connected to the circuit of the power generation device 100 through the interface 150 and the power generation device 100 generates a temperature difference Δt ) Is consumed by the electronically provided load. At this time, the electronic load to the power generation device 100 can be applied by the PWM control method, and surge can be prevented, and stable testing can proceed.

While the load is being supplied to the power generation device 100 by the electronic load 160, the control unit 170 receives the data of the power generation device 100 and determines the detailed grade.

At this time, the controller 170 measures the voltage of the power generation device 100, compares the measured voltage V of the power generation device 100 with a reference value Vo or a specific grade by product or grade, The lower the measured voltage V of the power generation element 100, the lower the detailed rating is determined.

In addition, the control unit 170 does not discriminate only the detailed grades but acquires data such as current (I), voltage (R), and power (P) You can determine the level of detail or use useful information for each product.

As described above, after the process of discriminating the normal or bad and the detailed grades is performed, various data acquired in the process are stored (refer to S13)

Specifically, the controller 170 controls the temperature difference? T provided at both ends of the power generation device 100 and the internal resistance R, current I, voltage V, It is possible to store test environment data including the power (P), the product class determined thereby, temperature and humidity, and the like, and the test results of a large number of power plants can be managed using such various data.

5 is a view showing an example of a result screen according to a method of testing a power plant according to the present invention.

As shown in FIG. 5, the result screen according to the method of testing the power plant according to the present invention includes a table (A) showing temperature differences provided at both ends of the power plant, a voltage / current graph (B) / Voltage graph (B), and test environment data including temperature, humidity, and the like, and the person who performs the test can acquire and manage information through the screen.

100: power generating element 110: jig
120: Heating device 130: Cooling device
140: internal resistance meter 150: interface
160: electronic load 170:

Claims (12)

A testing apparatus for a power plant for inspecting a power plant generating an electromotive force by providing a temperature difference at both ends,
A jig fixing both ends of the power generation element to provide a temperature difference;
A heating device connected to the jig to heat one end of the power plant;
A cooling device connected to the jig to cool another end of the power plant;
An internal resistance measurer capable of measuring an internal resistance of the power plant;
An interface unit for connecting the circuit of the power plant with the internal resistance meter;
Wherein the internal resistance measurement value of the power plant is set to be lower than the internal resistance measurement value of the power plant while the temperature difference of the set range is provided to the power generation element by controlling the operation of the heating device and the cooling device, And a controller for determining whether the power plant is normal by comparing the reference value with a reference value. The method according to claim 1,
The jig,
A heating plate for pressing the upper end of the power plant,
And a cooling plate for supporting a lower end of the power plant,
Wherein the heating plate is installed so as to be movable up and down with respect to the cooling plate. 3. The method of claim 2,
The heating device includes:
A heating line built in the heating plate,
And a temperature controller for controlling power supply to the hot wire. 3. The method of claim 2,
The cooling device includes:
A cooling pipe built into the cooling plate,
And a circuler for controlling the circulation of the cooling fluid to the cooling pipe. 5. The method according to any one of claims 1 to 4,
And an electronic load connected to the power generation element by the interface and electronically loading the power generation element to consume electromotive force generated in the power generation element,
Wherein,
Current, and power of the power plant during the operation of the electronic load, and determines the product class according to the voltage of the power plant. 6. The method of claim 5,
The electronic load
Power plant test equipment that provides load through pulse width modulation (PWM) to soft start. 6. The method of claim 5,
Wherein,
A test apparatus for a power plant that stores temperature differences provided at both ends of the power plant, internal resistance, current, voltage and power measured by the power generation element, product class determined thereby, and test environment data. A first step of fixing both ends of a power plant provided with a temperature difference;
A second step of providing a temperature difference within a set range to both ends of the fixed power plant in the first step;
A third step of measuring an internal resistance of a power plant provided with a temperature difference in the second step; And
And a fourth step of comparing the internal resistance measured value of the power plant measured in the third step with a reference value to determine whether the power plant is normal or not. 9. The method of claim 8,
A fifth step of electronically providing a load to the power generation device determined to be normal in the fourth step to consume the electromotive force generated in the power generation device;
Further comprising: a sixth step of acquiring data from the power generation element and determining a product class of the power plant while the power plant consumes the electromotive force in the fifth step. 10. The method of claim 9,
In the fifth step,
A method of testing a power plant for providing a load to the power generation element through a pulse width modulation (PWM) method for soft start. 10. The method of claim 9,
In the sixth step,
A first step of acquiring data such as a current, a voltage and a power from the power generation element and creating a graph;
And a second step of determining a product grade according to the voltage of the power plant obtained in the first step. 12. The method of claim 11,
In the sixth step,
Further comprising the step of storing the temperature difference provided at both ends of the power plant, the internal resistance, the current, the voltage and the power measured by the power generation element, the product class determined thereby, and the test environment data.

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