KR20160113459A - System for reproducing power line condition including a noise and method for reproducing power line condition using the same - Google Patents

System for reproducing power line condition including a noise and method for reproducing power line condition using the same Download PDF

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Publication number
KR20160113459A
KR20160113459A KR1020150039008A KR20150039008A KR20160113459A KR 20160113459 A KR20160113459 A KR 20160113459A KR 1020150039008 A KR1020150039008 A KR 1020150039008A KR 20150039008 A KR20150039008 A KR 20150039008A KR 20160113459 A KR20160113459 A KR 20160113459A
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KR
South Korea
Prior art keywords
signal
power supply
noise
applying
power source
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Application number
KR1020150039008A
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Korean (ko)
Inventor
임홍우
형재필
이영주
이창훈
정의효
이민혁
원동조
김준성
장인혁
Original Assignee
재단법인 한국기계전기전자시험연구원
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Priority to KR1020150039008A priority Critical patent/KR20160113459A/en
Publication of KR20160113459A publication Critical patent/KR20160113459A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J2003/007—

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The present invention provides a system for reproducing a power line condition including noise. The system for reproducing the power line condition including noise comprises: a motor driven by receiving an external power; a generation unit which applies a power signal forming a sine wave by driving motor to an object to be tested along a signal applying path; and a noise power signal generation unit which applies a noise power signal which is variably set by the signal applying path, to the power signal. Moreover, the present invention provides the system for reproducing the power line condition including noise, and a method of reproducing the power line condition using the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for reproducing a power supply system including noise and a method for reproducing power supply system using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system condition reproducing system including noise, and more particularly, to a power system condition reproducing system including noise that can test durability against voltage, And a method of reproducing power system conditions.

Generally, a failure of an appliance is caused by a short circuit of the input terminal, an unstable power supply, or deterioration of the component.

Conventionally, an electrical characteristic test is performed on the above-described household electric appliances for performance evaluation at the time of manufacturing.

That is, the transformer is used to apply the voltage to the electric appliance under the condition that the electric current is varied, and the electric characteristics of the electric appliance after the application is evaluated.

Conventionally, as described above, the voltage and current are varied using a transformer to reproduce the failure test conditions.

Such a reproduction method is advantageous in that reproduction by the breakdown of the withstand voltage at the end of the product is easy by raising only the voltage and current applied to the household appliance.

However, it is important to evaluate not only the characteristics depending on the voltage and the current but also the durability against the noise, in order to evaluate the electrical characteristics of a general household appliance.

Accordingly, in recent years, it is required to develop a technique capable of evaluating the electrical characteristics of household electrical appliances by simulating various fixed environments including noise signals.

A prior art document related to the present invention is Korean Public Release No. 20-1989-0021500 (November 2, 1989).

It is an object of the present invention to provide a power supply system condition reproduction system including noise that can test the durability against voltage, current, and noise of household electric appliances, and a method of reproducing power supply system conditions using the same.

It is another object of the present invention to provide a power system condition reproducing system including noise that can facilitate the cause analysis according to a fixed mode of noise power of an EUT and a power system condition reproducing method using the same.

Still another object of the present invention is to provide a method of manufacturing a semiconductor device, The present invention provides a power system condition reproducing system including noise that can solve the problem that noise is applied to the power generating unit in reverse when the noise power is applied to the main power source and a method of reproducing power system conditions using the same.

In one aspect, the present invention provides a power system condition reproduction system including noise.

The power system condition reproducing system including the noise includes a motor unit driven by receiving external power; A power generator for applying a power source signal constituting a sinusoidal wave to a test subject along a signal application path by driving the motor unit; And a noise power supply signal generator for applying a noise power supply signal variably set to the signal applying path to the power supply signal.

Preferably, the external power source is generated from a power generator for variably controlling a voltage and a frequency, and is applied to the motor unit.

Preferably, the noise power source signal is formed of a sine wave of the power source signal and a peak from the floor.

Wherein the noise power source signal generator includes a setting unit that is preset in a plurality of different fixed modes according to a level of a noise power signal, a selection unit that selects any one of the plurality of failure modes, And an amplifier for amplifying and applying the noise power source signal generated from the signal generator to the signal applying path.

It is preferable that the external power supply signal and the power supply signal have the same sinusoidal wave.

According to another aspect of the present invention, there is provided a method of reproducing a power supply system condition including noise, the method comprising: a motor unit driving step of driving the motor unit by applying external power; A power supply signal applying step of applying a power supply signal constituting a sinusoidal wave to a test object along a signal applying path by using a power generation section driven by the driving of the motor section; And a noise power source signal applying step of applying a noise power source signal variably set to the signal applying path to the power source signal using a noise power source signal generating unit.

Preferably, the external power source is applied to the motor unit by varying a voltage and a frequency using a power generator.

It is preferable that the noise power source signal is formed so as to form a peak from the valley of the sinusoidal wave forming the power source signal and the floor.

The noise power supply signal applying step may include setting a plurality of fixed modes different in accordance with the level of the noise power signal using the setting unit, selecting one of the plurality of failure modes using the selection unit, It is preferable to generate a noise power supply signal having a level according to the selected failure mode and amplify the noise power supply signal generated from the signal generation unit using the amplification unit by amplifying the noise power supply signal using the signal application path.

Preferably, the external power supply signal and the power supply signal have the same sinusoidal wave.

INDUSTRIAL APPLICABILITY The present invention has the effect of testing the durability against voltage, current and noise to household electric appliances.

Further, the present invention has the effect of facilitating the cause analysis according to the fixed mode of the noise power of the EUT.

Further, When the noise power source is applied to the main power source, there is an effect of solving the problem that noise is applied to the power source side in reverse.

1 is a block diagram showing a configuration of a power system condition reproducing system including noise according to the present invention.
Fig. 2 is a conceptual diagram showing the operation of the power system condition reproducing system including the noise of the present invention.
FIG. 3 is a flowchart illustrating a method of reproducing a power supply system condition including noise using a power supply system condition reproduction system including noise according to the present invention.
4 is a diagram showing a process of applying a test signal according to the present invention.
5 is a flow chart showing a step of applying a noise power signal according to the present invention.
6A and 6B are diagrams showing examples of a test signal applied to a test subject by synthesizing a noise power source signal with a power source signal according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, in which a noise-containing power system condition reproducing system and a noise-containing power system condition reproducing method using the same are described.

First, the configuration of a power supply system condition reproducing system including the noise of the present invention will be described.

FIG. 1 is a block diagram showing a configuration of a power supply system condition reproducing system including noise according to the present invention, and FIG. 2 is a conceptual diagram showing an operation of a power supply system condition reproducing system including noise according to the present invention.

1 and 2, a power supply system condition reproducing system including noise includes a power generator 100, a motor 200, a power generator 300, a noise power generator 300, (400).

The power generator 100 may be a VVVF frequency transformer.

The power generator 100 can arbitrarily adjust the voltage and the frequency.

The power generator 100 may apply an external power signal whose voltage and frequency are variably controlled, and the external power signal may be a sinusoidal wave.

The motor unit 200 is driven by receiving the external power signal.

The motor unit 200 is electrically connected to the generator.

The motor unit 200 is driven to drive the power generation unit 300, which is a generator that is electrically connected.

The power generator 300 driven in this manner generates a power supply signal along the signal application path.

Here, the signal applying path is electrically connected to a test object.

The object to be tested may be a domestic appliance. Of course, the object to be tested is not limited to the home use.

As described above, the power supply signal generated from the power generator 300 may also be sinusoidal.

The noise power supply signal generator 400 is electrically connected to the signal application path.

The noise power generator 400 includes a setting unit 410, a selecting unit 420, a signal generating unit 430, and an amplifying unit 44.

The setting unit 410 may be preset to a plurality of different fixed modes depending on the level of the noise power signal.

The selecting unit 420 may select one of the plurality of failure modes.

The signal generator 430 generates a noise power signal having a level corresponding to the selected failure mode.

The amplification unit 440 amplifies and applies the noise power signal generated from the signal generation unit 430 to the signal application path.

Next, a description will be given of a method of reproducing the power supply system condition including the noise or the operation of the power supply system condition reproducing system including noise as described above.

FIG. 3 is a flowchart illustrating a method of reproducing a power supply system condition including noise using a power supply system condition reproducing system including noise according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating a process of applying a test signal according to the present invention.

Referring to FIGS. 2 and 3, the method of reproducing power supply system conditions including noise includes the steps of generating an external power supply signal, driving the motor unit, applying a power supply signal, and applying a noise power supply signal. do.

In the external power supply signal application step, the power supply generation unit 100 variably adjusts the voltage and the frequency according to the test conditions to generate an external power supply signal and applies the generated external power supply signal to the motor unit 200.

In the motor section driving step, the motor section 200 is driven by an external power signal generated from the power generating section 100.

The driving force generated in the motor unit 200 is used as energy for driving the power generator 300.

In the power supply signal application step, the power generation unit 300 generated by driving the motor unit 200 applies a power supply signal along a signal application path.

In the present invention, it is preferable that the external power supply signal and the power supply signal are formed as sinusoidal waves having the same level.

Next, in the step of applying a noise power supply signal, the noise power supply signal generating unit 400 applies a noise power supply signal to a power supply signal flowing along a signal applying path to form a test signal.

FIG. 5 is a flowchart showing a noise power supply signal applying step according to the present invention. FIGS. 6A and 6B are views showing examples of a test signal applied to a test subject by synthesizing a noise power supply signal with a power supply signal according to the present invention.

Referring to FIG. 5, the noise power supply signal applying step according to the present invention proceeds in the following order.

The setting unit 410 is used to set a plurality of different fixed modes according to the level of the noise power signal.

Thereby, a noise power signal capable of reproducing various fixed modes can be set.

Next, the selecting unit 420 is used to select one of the plurality of failure modes.

The signal generating unit 430 is used to generate a noise power signal having a level according to the selected failure mode.

The amplification unit 440 amplifies and applies the noise power source signal generated from the signal generation unit 430 to the signal application path.

Therefore, as shown in FIG. 6A or FIG. 6B, the test signal which does not pass through the object can be applied to the object under the condition that the noise power signal is synthesized with the power supply signal.

In the present invention, when the noise power supply signal is applied to the power supply signal, it is preferable that the noise power supply signal is matched with the noise power supply signal a predetermined time before the power supply signal is applied to the object.

Although not shown in the drawings, the present invention includes a controller.

The controller may variably adjust the timing at which the noise power supply signal is supplied to the power supply signal flowing along the signal applying path.

Preferably, the time at which the power supply signal is not transmitted from the power generation unit to the object is a reference time, and the noise power supply signal application time may be determined at a time from the center of the reference time to the power generation unit.

Therefore, when the noise power source signal is applied to the power source signal and applied to the object, it is possible to make the noise power source signal more regular in the valley and the floor of the power source signal constituting the sinusoidal wave.

Also, in the present invention, the signal generator may adjust the level of the noise signal applied to the power supply signal to be irregularly variable.

Accordingly, in the present invention, in addition to a specific fixed mode, the electrical characteristics of a product in an irregular noise environment can be evaluated.

Through the above construction and operation, the embodiment according to the present invention can test the durability against voltage, current, and noise for household electric appliances.

In addition, the embodiment of the present invention can facilitate the cause analysis according to the fixed mode for the noise power signal.

Further, an embodiment according to the present invention is characterized in that: When noise power is applied to the main power source, the problem that noise is applied to the power source side in reverse can be solved.

As described above, the power system condition reproducing system including the noise and the power system condition reproducing method including noise using the noise system according to the present invention have been described. However, various modifications and variations are possible within the scope of the present invention. This is obvious.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: Power generator
200:
300:
400: Noise power source signal generating unit
410: Setting unit
420:
430: Signal generator
440:

Claims (10)

A motor unit driven by receiving external power;
A power generator for applying a power source signal constituting a sinusoidal wave to a test subject along a signal application path by driving the motor unit; And
And a noise power supply signal generator for applying a noise power supply signal variably set to the signal applying path to the power supply signal.
The method according to claim 1,
The external power source
Wherein the power supply unit is generated from a power generator for variably controlling a voltage and a frequency, and is applied to the motor unit.
3. The method of claim 2,
The noise power supply signal includes:
Wherein the power supply system is formed with a sinusoidal wave forming the power supply signal and a peak from the floor.
The method according to claim 1,
Wherein the noise power source signal generating unit comprises:
A setting unit that is preset in a plurality of different fixed modes according to the level of the noise power signal;
A selection unit for selecting any one of the plurality of failure modes;
A signal generator for generating a noise power signal having a level according to the selected failure mode,
And an amplifier for amplifying and applying the noise power source signal generated from the signal generator to the signal application path.
The method according to claim 1,
Wherein the external power supply signal and the power supply signal have the same sinusoidal waveform.
Driving the motor unit by applying an external power source;
A power supply signal applying step of applying a power supply signal constituting a sinusoidal wave to a test object along a signal applying path by using a power generation section driven by the driving of the motor section; And
And applying a noise power source signal, which is variably set to the signal applying path, to the power source signal using a noise power source signal generating unit.
The method according to claim 6,
The external power source,
Wherein the voltage is applied to the motor unit by varying a voltage and a frequency using a power generating unit.
8. The method of claim 7,
The noise power source signal,
Wherein the power source signal is formed so as to form a peak from a crest and a valley of a sinusoidal wave forming the power source signal.
The method according to claim 6,
The step of applying the noise power supply signal includes:
A setting unit configured to preset a plurality of different fixed modes according to the level of the noise power signal,
Selecting one of the plurality of failure modes using a selection unit,
Generating a noise power signal having a level corresponding to the selected failure mode using the signal generator,
Wherein the noise power source signal generated from the signal generator is amplified by the signal application path and applied using the amplification unit.
The method according to claim 6,
Wherein the external power supply signal and the power supply signal have the same sinusoidal waveform.

KR1020150039008A 2015-03-20 2015-03-20 System for reproducing power line condition including a noise and method for reproducing power line condition using the same KR20160113459A (en)

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KR1020150039008A KR20160113459A (en) 2015-03-20 2015-03-20 System for reproducing power line condition including a noise and method for reproducing power line condition using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150039008A KR20160113459A (en) 2015-03-20 2015-03-20 System for reproducing power line condition including a noise and method for reproducing power line condition using the same

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