KR101291340B1 - Power supplies efficiency test system - Google Patents

Abstract

The present invention is independently mounted to the various measuring and control equipment installed in the power plant to measure and diagnose the performance of the power supply device for supplying power to the load elements configured in the facility, and to manage the diagnosis results as a database A power supply performance diagnostic system is disclosed that can provide report output.
The present invention provides a management module for setting various conditions for measuring the performance of a power supply under test, analyzing the measurement results measured by the power supply under test, managing them as data tables, and outputting the measurement results in a set format; Adjust each condition for performance measurement connected to the control signal of the management module and supply it to the power supply device under test, and measure each characteristic output from the power supply device under test according to the adjusted condition and provide it to the management module. Includes measurement module.

Description

Power Supply Performance Diagnosis System {POWER SUPPLIES EFFICIENCY TEST SYSTEM}

The present invention is independently mounted to the various measuring and control equipment installed in the power plant to measure and diagnose the performance of the power supply device for supplying power to the load elements configured in the facility, and to manage the diagnosis results as a database The present invention relates to a power supply performance diagnostic system that can provide report output.

Various measurement and control equipment installed in the power plant is independently configured with a power supply for supplying the operating power to each load element configured therein.

The power supply device includes a rectifier circuit, a converter, a relay, a capacitor, and the like, and converts a commercial power input into a voltage required by a load element to provide a stable operation of a measurement facility or a control facility.

In the power supply device, a change in the reference value occurs according to the environmental environment and the durability of the component when used for a long time, and there is a risk that reliability and serious failure may occur if the power supply device is not managed at any time and regularly.

However, since a separate device for measuring the state of the power supply is not provided, the detailed state of the power supply cannot be detected or predicted.

Therefore, due to the unexpected failure of the power supply device, the function of the measuring or control equipment installed in the power plant may not be normally executed, which may paralyze the function of the entire power plant, which is a national infrastructure industry.

The present invention is to improve the above-described problems, the object of the present invention is to be mounted on each of a variety of measuring equipment and control equipment installed in the power plant independently, and various performance of the power supply device for supplying power to the load element configured in the corresponding equipment We want to measure and diagnose the problem, manage the diagnosis result as a data table, and provide a report output.

In addition, another object of the present invention is to allow the power supply of the test object to be connected through the jig (Jig) so that more than 15 kinds of performance measurement and diagnostics, such as the rate of line variation can be automatically performed with a minimum of operation regardless of the type of power supply. I want to.

In addition, another object of the present invention is to apply the drift (Drift) technique to extract the probability and scheduled time of failure in the power supply of the test object to provide information of the replacement and repair time.

A feature according to an embodiment of the present invention is to set various conditions for measuring the performance of the power supply under test, analyze the measurement results measured by the power supply under test, manage them as data tables, and output the measurement results in a set format. Management module; Adjust each condition for performance measurement connected to the control signal of the management module and supply it to the power supply device under test, and measure each characteristic output from the power supply device under test according to the adjusted condition and provide it to the management module. A power supply performance diagnostic system is provided that includes a measurement module.

The apparatus may further include a jig-type connector for connecting the input / output terminal and the adjustment / measurement module configured in the test target power supply device.

The management module may provide a screen and a report output of a performance measurement result and an analysis result of the test target power supply.

The management module may include an output voltage change characteristic according to a change amount of an input voltage supplied to a test target power supply device; Output voltage fluctuation characteristics according to load fluctuations connected to an output of a power source under test; Deterioration characteristics generated when the power supply under test is exposed to a certain load for a long time; Output characteristics until the output rises above a predetermined value when the power is supplied to the test target power supply; Output characteristics until the output falls below a predetermined value when the power input to the test target power supply is cut off; An output voltage characteristic generated when the power frequency input to the test target power supply device is varied; Current curve characteristics generated when current above the limit flows through the load connected to the output of the power supply under test; An overvoltage protection operation characteristic which is operated when the magnitude of the output voltage of the power supply under test varies and rises above the set rated voltage; An overcurrent protection operation characteristic which is activated when the magnitude of the output current of the power supply under test varies and rises above the set rated current; The size of the input power supply and the operating characteristics of the protective function when the output of the power supply under test is short-circuited; Power factor characteristics of the power input to the device under test; Operating characteristics of the power supply under test when an input failure occurs due to a momentary disconnection or loss of power input to the power supply under test; Operation state characteristics including input / output control signals, alarms, and operation abnormalities with the power source under test; Traceability can be provided by measuring and analyzing the variable range characteristics of the voltage output from the EUT.

The management module may analyze the current measured result by using a transition matrix to estimate a point in time at which calibration and repair are required, and provide tracking management of a test target power supply.

The management module includes a user interface for interfacing a performance measurement condition input by a user (administrator) and an analysis request of the measured result; A control unit which automatically executes the performance measurement of the test target power supply according to the measurement conditions input from the user interface, analyzes the measured results as a data table in a database, and controls the output of the measurement results; A database for storing performance measurement and analysis results of a test target power supply in a data table according to a control signal of the controller; As a result of performance measurement and analysis of the test target power supply, the display unit may include a display unit for outputting an operating state in a predetermined format.

The user interface includes a numeric key and a function key, and may be configured as a keypad or a touch screen.

The control unit is characterized in that the line drift rate characteristics, load drift rate characteristics, deterioration degree, the output characteristics of the power supply, the output characteristics of the power interruption, the internal temperature, the frequency variable characteristics, the current limiting characteristics, the overvoltage of the power supply under test The result analysis can be performed by measuring the protection characteristics, overcurrent protection characteristics, circuit short-circuit characteristics, power factor characteristics, transient input failure characteristics, input / output logic characteristics, and voltage variable range characteristics.

The adjustment / measurement module may include: a power supply for supplying power in the form of AC, DC, AC + DC to a power source under test under the control of a management module; A load controller for adjusting the output load of the power supply device under test according to the control of the management module; A power regulator for supplying overvoltage and overcurrent by varying the size of the power input to the power source under test according to the control of the management module; A first measuring instrument for measuring the power supply state and the ripple output from the test target power supply device and providing it to the management module; A routing module for supplying the variable power output from the power regulator to the test target power supply and providing an overvoltage and overcurrent protection function and an internal temperature of the test target power supply to the second instrument; A second measuring instrument measuring an input / output voltage and an internal temperature of a power source under test through a routing module and providing the same to a management module; It may include an interface unit that connects the calibration / measurement module and the power supply under test to provide power and data transmission and reception.

The power supply may perform voltage, current limiting, overvoltage, overcurrent protection, phase angle control, and frequency variation with respect to the power supplied to the power source under test under the control of the management module.

In addition, a feature according to another embodiment of the present invention includes a user interface for interfacing a performance measurement condition input by a user (administrator), an analysis request of the measured result; A control unit which automatically executes performance measurement of the test target power supply according to the measurement condition input from the user interface, analyzes the measured result, and manages and outputs the result as a data table; A power supply for supplying power in the form of AC, DC, AC + DC to the power source under test under the control of the controller; A load controller for adjusting an output load of the test target power supply device under control of the controller; A power regulator configured to supply an overvoltage and an overcurrent by varying the size of the power input to the test target power supply under the control of the controller; A first measuring device for measuring the power supply state and the ripple output from the test target power supply device and providing the same to the control unit; A routing module for supplying the variable power output from the power regulator to the test target power supply and providing an overvoltage and overcurrent protection function and an internal temperature of the test target power supply to the second instrument; A second measuring instrument measuring an input / output voltage and an internal temperature of a test target power supply device through a routing module and providing the same to a control unit; An interface unit which connects an adjustment / measurement module and a test target power supply device to provide power and data transmission and reception; A database for storing performance measurement and analysis results of a test target power supply in a data table according to a control signal of the controller; As a result of performance measurement and analysis of the test target power supply, there is provided a power supply performance diagnostic system comprising a display unit for outputting an operating state in a predetermined format.

The controller may provide tracking management by analyzing the results measured by the test target power supply by estimating a time point when the calibration and repair are necessary.

As such, the present invention can accurately and conveniently measure and analyze various performances of power supply devices of various measurement and control facilities installed in a power plant, and provides stable repair and replacement of power supply devices based on the analyzed data. It can provide stability and reliability in the operation of measuring equipment and control equipment of power plants.

In addition, the present invention can provide a predictive diagnosis for the power supply devices, the repair and replacement of parts and assemblies can be made before a major failure occurs to provide convenience in the operation and management of the measurement and control equipment of the power plant have.

1 is a diagram showing the configuration of a power supply performance diagnosis system according to an embodiment of the present invention.
2 is a diagram illustrating an output rise time measurement result of a power supply performance diagnosis system according to an exemplary embodiment of the present invention.
3 is a view showing the output fall time measurement results of the power supply system performance diagnostic system according to an embodiment of the present invention.
4 is a view showing the current limit measurement results of the power supply system performance diagnostic system according to an embodiment of the present invention.
5 is a diagram illustrating an overvoltage protection measurement result of a power supply performance diagnosis system according to an exemplary embodiment of the present invention.
6 is a diagram illustrating a connection between a power supply performance diagnosis system and a test target power supply 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 so that those skilled in the art can easily carry out the present invention.

The present invention can be embodied in various different forms, and thus the present invention is not limited to the embodiments described herein.

1 is a diagram showing the configuration of a power supply performance diagnosis system according to an embodiment of the present invention.

Referring to FIG. 1, a power supply performance diagnosis system according to an embodiment of the present invention includes a management module 110, an adjustment / measurement module 120, and a connector 130.

The management module 110 sets various conditions for measuring various performances of the test target power supply 200 connected through the connector 130 and then executes the performance measurement, and performs the test target power according to the performance measurement. The measurement result measured from the device 200 is analyzed and managed as a data table, and the measurement result is output to a report and a screen so that an administrator can check it.

The management module 110 includes a user interface 111, a controller 112, a database 113, and a display 114.

The user interface 111 interfaces a condition input by the user (manager) to the controller 112 to measure and analyze various performances of the test target power supply 200 connected through the connector 130.

The user interface 111 may include a numeric key and a function selection key, and may include a keypad or a touch screen.

The controller 112 automatically executes various performance measurements of the test target power supply 200 connected to the connector 130 according to the performance measurement conditions input from the user interface 111, analyzes the measured results, and stores a database. Managed as a data table at 113, and controls the overall operation, such as the output of the measurement results.

The control unit 112 is a line fluctuation rate characteristic, load fluctuation rate characteristic, deterioration degree, output characteristics according to power supply, output characteristics according to power interruption, internal temperature of the test target power supply device, and frequency change Characteristics, current limiting characteristics, overvoltage protection characteristics, overcurrent protection characteristics, circuit short-circuit characteristics, power factor characteristics, instantaneous input failure characteristics, input / output logic characteristics, and voltage variable range characteristics can be measured and analyzed.

The line fluctuation rate characteristic refers to a fluctuation characteristic of the output voltage according to the fluctuation amount of the input voltage supplied to the test target power supply 200.

The load variation rate characteristic refers to a variation characteristic of the output voltage according to the variation amount of the load connected to the output of the test target power supply 200.

The degree of degradation refers to a change in operating state that occurs when the test target power supply 200 is exposed to a constant load for a long time.

The output characteristic according to the power input means a delay time and a rise time until the output rises to a predetermined value, for example, 90% or more when power is supplied to the test target power supply 200.

The output characteristic according to the power off means a delay time and a fall time until the output drops to a predetermined value, for example, 10% or less when the power input to the test target power supply 200 is cut off.

The frequency variable characteristic refers to a characteristic of an output voltage generated when the frequency of the power input to the test target power supply 200 is varied.

The current limiting characteristic refers to a curve characteristic of a current generated when a current supplied to a load connected to an output of the test target power supply 200 flows above a threshold value.

The overvoltage protection characteristic refers to an operation characteristic of a protection function that is operated when the magnitude of the voltage output from the test target power supply 200 rises above the set rated voltage.

The overcurrent protection characteristic means an operating characteristic of a protection function that is operated when the magnitude of the current output from the test target power supply 200 rises above the set rated current.

The short circuit characteristic refers to an operation characteristic of the size of the input power supply and the protection function when the output of the test target power supply 200 is short-circuited.

The power factor characteristic means a power factor characteristic of the power input to the test target power supply 200.

The characteristic according to the instantaneous input failure refers to an operation characteristic for checking whether the test target power supply 200 operates normally when an input failure occurs due to a momentary disconnection or loss of power input to the test target power supply 200. .

The input / output logic characteristic refers to an operation state characteristic such as an input / output control signal, an alarm, an operation abnormality, and the like with the test target power supply 200.

The voltage variable range characteristic refers to the variable range of the voltage output from the test target power supply 200 and the characteristics of the line.

The database 113 stores measurement and analysis results for each performance of the test target power supply 200 according to a control signal applied from the controller 112 as a predetermined data table.

The display unit 114 outputs the overall operation state according to the performance measurement and analysis of the test target power supply 200 in a predetermined format so that the user (manager) can easily grasp.

The display unit 114 includes at least one LED lamp and an LCD.

The adjustment / measurement module 120 adjusts each condition for measuring various performances of the test target power supply 200 according to the control signal of the management module 110, and supplies the condition to the test target power supply 200. According to the conditions, each characteristic output from the test target power supply 200 is measured and the result is provided to the management module 110.

The adjustment / measurement module 120 includes a power supply 121 and a load regulator 122, a power regulator 123, a first instrument 124, a second instrument 125, a routing module 126, and an interface unit ( 127).

The power supply 121 is connected to the input port of the test target power supply 200 through the connector 130, and according to the control signal provided by the predetermined communication method set in the management module 110 (test target power supply device ( 200) AC, DC, AC + DC power supply to enable the performance measurement.

The power supply 121 has a voltage and current limiting function, an overvoltage and overcurrent protection function, a phase angle control function when on / off, and the like.

The communication between the power supply 121 and the management module 110 may be connected to, for example, GPIB communication.

The power supply 121 provides the management module 110 with information on voltage and current output to the test target power supply 200 in a predetermined communication method.

The power supply 121 is an LCD display for displaying the state of the output voltage and current, a key for inputting a set value by manual operation, a knob for adjusting voltage and current by manual operation, a communication port with the outside, etc. This may be included.

The load regulator 122 is connected to the output port of the test target power supply 200 through the connector 130, the load resistance, load current according to the control signal provided by the predetermined communication method set in the management module 110 The amount of load, including the load power, can be adjusted to provide a performance measure for the rate of change of the output voltage.

That is, the performance measurement for the output capacity of the test target power supply 200 can be performed.

The load regulator 122 transmits the state of the adjusted load amount to the management module 110 in a predetermined communication manner for measuring the output capacity performance.

Communication between the management module 110 and the load regulator 122 may be connected to, for example, GPIB communication.

The power regulator 123 is connected to the input port of the test target power supply 200 through the connector 130, and according to the control signal provided by the predetermined communication method set in the management module 110 (test target power supply device ( By varying the size of the output power applied to the 200) and supplying the overvoltage and overcurrent, the overvoltage protection performance and the overcurrent protection performance measurement can be provided.

The power regulator 123 transmits the variable result of the power output for measuring the overvoltage and overcurrent protection performance to the management module 110 in a predetermined communication method.

The communication between the power regulator 123 and the management module 110 may be connected to, for example, GPIB communication.

The first measuring instrument 124 is connected to the output port of the test target power supply 200 through the connector 130 to measure the power state and ripple output from the power supply device 200, and set the measured result to a predetermined communication. To the management module 110 in a manner.

The first instrument 124 is set according to the control signal applied from the management module 110, the conditions for the power supply state and the ripple measurement of the test target power supply 200.

The first instrument 124 may be configured as an oscilloscope, and the connection with the management module 110 may be connected by, for example, GPIB communication.

The second instrument 125 measures the state of the input / output voltage and the temperature of the test target power supply 200 through the routing module 126, and transmits the measured result to the management module 110 in a predetermined communication method. do.

The second meter 125 may be configured as a multimeter, and conditions for measuring input / output voltage and temperature are set according to a control signal applied from the management module 110.

The routing module 126 arbitrates the variable power for overvoltage and overcurrent protection performance measurement output from the power regulator 123 to be applied to the test target power supply 200, and outputs the variable power output from the test target power supply 200. As a result of the overvoltage and overcurrent protection function according to the present invention, the temperature measurement result is provided to the second instrument 125.

The routing module 126 may include two or more RS-232C communication ports, two or more digital input / output ports to which control signals and measurement signals are connected, and two or more analog output ports to which variable control signals of power are connected. have.

The interface unit 127 mediates data transmission and reception between the power supply 121 and the load regulator 122, the routing module 126, and the power supply device 200 under test.

In addition to the above configuration, it may further include a power distributor and a cooling unit.

The power divider properly distributes the main power to the measuring instrument and other equipment in consideration of the load capacity, and when an overload occurs in some equipment, the breaker is operated to prevent damage to the power supply device 200 for the test.

The cooling unit forcibly dissipates heat generated inside the performance diagnosis system configured as a rack to the outside to maintain a proper temperature.

Connector 130 is composed of a jig (Jig) that provides a solid connection and easy attachment and detachment, such as the input and output terminals 210 shown in FIG.

The operation of the power supply performance diagnosis system according to the embodiment of the present invention including the functions as described above is executed as follows.

The test target power supply 200 for measuring performance among the measurement or control facilities installed in the power plant is separated from the corresponding facility, and as shown in FIG. 6, the connector 130 and the test target power supply 200 are connected to each other. Connect the input and output terminal 210 is configured, the first instrument 124 is connected to the first entry and exit port 131 is configured in the connector 130, the second, third input and output ports configured in the connector 130 ( 132 and 133 connect the input / output ports of the interface unit 127.

After the connection of the test target power supply 200 is completed as described above, various conditions for measuring the performance of the test target power supply 200 are set using the user interface 111 configured in the management module 110. Perform the measurement.

At this time, the adjustment / measurement module 120 supplies the rated power to the test target power supply 200 according to the control signal of the management module 110 and to the output terminal of the test target power supply 200 according to the set performance measurement condition. Carry out load adjustment that is connected.

In addition, the adjustment / measurement module 1200 performs a variable amount of voltage and current supplied to the test target power supply 200 according to the control signal of the management module 110.

The line variability, load variability, deterioration rate, output characteristic of power supply, output characteristic of power off, using the user interface 111 configured in the management module 110 Measurement of internal temperature, frequency variable, current limit, overvoltage protection, overcurrent protection, short circuit, power factor, instantaneous input failure, input / output logic, voltage variable range Can be set.

The management module 110 analyzes the performance measurement results measured by the test target power supply 200 and manages them as a data table in the database 113, and outputs the measurement results to the report and the screen through the display unit 114. So that the administrator can check it.

Since the power supply device 200 is deteriorated in the measurement performance and output in proportion to the operation time, the management module 110 can predict the result of normal, calibration, repair, etc. by analyzing the measurement result by the drift technique. have.

For example, if the measured performance of the power supply under test is within the steady state setting range, for example, within ± 0.025% error range, it is determined as the normal state, and the measured performance is within the calibration state setting range, for example ± 0.025% or more. If it is within the 0.05% error range, it is determined that calibration is necessary, and if the measured performance is more than the set range of the repair status, for example, ± 0.05% or more, it may be determined to be repaired.

The operation of measuring each characteristic with respect to the above operation will be described in more detail as follows.

In the first embodiment, the operation of measuring the line variability characteristic of the test target power supply 200 is performed as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Subsequently, when the condition for changing the voltage input to the test apparatus 200 is set using the user interface 111 configured in the management module 110, the control unit 112 controls the adjustment / measurement module 120 according to the set condition. The amount of change in voltage, current, phase, etc. output from the configured voltage supply 121 is adjusted and supplied to the test target power supply 200 through the interface unit 127.

In this case, the first measuring instrument 124 and the second measuring instrument 125 of the adjustment / measurement module 120 measure line fluctuation characteristics (output voltage fluctuation characteristics) of the test target power supply 200 according to the fluctuation amount of the input voltage. Provided to the management module 110.

The control unit 112 of the management module 110 analyzes the line change rate characteristic (output voltage change rate characteristic) of the test target power supply 200 provided from the first measuring instrument 124 and the second measuring instrument 125. Is displayed in a format set through the display unit 114, and is output in a predetermined report form.

Then, the line variation ratio characteristic (output voltage variation ratio characteristic) of the test target power supply 200 is recorded in the data table set in the database 113 so that history management and tracking management can be provided.

The line fluctuation rate characteristic (output voltage fluctuation rate characteristic) is a line fluctuation rate characteristic according to the fluctuation amount of the input voltage when the voltage inputted to the test target power supply 200 is adjusted by adjusting the voltage output from the power supply 121. Voltage fluctuation rate characteristic) and line fluctuation rate characteristic output for the variable phase input when the phase is changed at the same frequency with respect to the voltage output from the power supply 121 and input to the test target power supply 200 (output voltage fluctuation rate characteristic). ), The line fluctuation rate characteristic (output voltage fluctuation rate characteristic) generated when the sine wave of the AC power input to the test target power supply 200 can be measured.

In the second embodiment, the operation of measuring the load fluctuation rate characteristic of the test target power supply 200 is performed as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Thereafter, the rated power is set to be supplied to the test apparatus 200 using the user interface 111 configured in the management module 110, and the load resistance, load current, Set the amount of change of load power.

Therefore, the control unit 112 configured in the management module 110 adjusts the output of the voltage supply unit 121 configured in the adjustment / measurement module 120 to a rated power supply and supplies it to the test target power supply 200.

Then, the controller 112 adjusts the load amount connected to the output terminal of the test target power supply 200 through the load regulator 122 under the condition of the set variation amount.

In this case, the first measuring instrument 124 and the second measuring instrument 125 configured in the adjustment / measurement module 120 may vary according to the load resistance, the load current, and the load power connected to the output terminal of the test target power supply 200. The change rate characteristic of the output voltage, that is, the load change rate characteristic is measured and provided to the management module 110.

The control unit 112 of the management module 110 analyzes the load variation rate characteristic of the test target power supply 200 provided from the first and second instruments 124 and 125 and displays the result of the display unit 114. Displayed in the format set through, and output in the form of a predetermined report.

Then, the load change rate characteristic of the test target power supply 200 is recorded in a data table set in the database 113 so that history management and tracking management can be provided.

In a third embodiment, the operation of measuring the deterioration characteristic (Aging) characteristics of the test target power supply 200 is performed as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Thereafter, the change rate of the voltage and current supplied to the test apparatus 200 is set using the user interface 111 configured in the management module 110, and a constant load condition is set at the output terminal of the test target power supply 200. do.

The deterioration characteristic may be executed for a long time by connecting a constant load to the output terminal of the test target power supply 200, and may be executed by applying harsh conditions for shortening the time.

The control unit 112 configured in the management module 110 converts the output of the voltage supply 121 configured in the adjustment / measurement module 120 into a voltage and a current having a set variation rate according to a condition set by the user interface 111. Adjust and supply to the test target power supply 200.

Then, the control unit 112 adjusts the load amount connected to the output terminal of the test target power supply 200 through the load regulator 122 to a set condition.

Thereafter, the first measuring instrument 124 and the second measuring instrument 125 configured in the adjustment / measurement module 120 are output from the test target power supply 200 according to the change rate of the voltage and current input as the test proceeds. By measuring the rate of change of voltage and current, the degree of degradation characteristics according to the use time of the test target power supply 200 is measured and provided to the management module 110.

The control unit 112 of the management module 110 analyzes deterioration characteristics of the test target power supply 200 provided from the first and second instruments 124 and 125 and displays the result of the display unit 114. Displayed in the format set through, and output in the form of a predetermined report.

Then, the degradation characteristics of the test target power supply 200 are recorded in a data table set in the database 113 so that history management and tracking management can be provided.

In a fourth embodiment, the operation of measuring the output characteristic according to the power input is as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Subsequently, if the rated power is supplied to the test apparatus 200 using the user interface 111 configured in the management module 110, the control unit 112 configured in the management module 110 adjusts / measures the module 120. Adjust the output of the voltage supply 121 is configured to supply the rated power to the test target power supply 200.

When the power is supplied to the test target power supply 200 as described above, the control unit 112 configured in the management module 110 adjusts the output of the voltage supply 121 to the test target power supply 200 Supply the rated power.

When the input of power to the test target power supply 200 is started as described above, the first measuring instrument 124 and the second meter 125 configured in the adjustment / measurement module 120 supply power to the test target power supply 200. At the time of inputting the measured output characteristics until the output power reaches a predetermined amount is provided to the management module 110.

As can be seen in FIG. 2, the output characteristic can be measured by dividing the total startup time, for example, the delay time and the rise time, when the power is turned on, for example, to output 90% of the power.

The control unit 112 of the management module 110 analyzes the power output characteristics of the test target power supply 200 provided from the first instrument 124 and the second instrument 125 and displays the result of the display unit 114. Displayed in the format set through, and output in a predetermined report form.

Then, the power output characteristics of the power supply device 200 are recorded in the data table set in the database 113 so that history management and tracking management can be provided.

In a fifth embodiment, the operation of measuring the output characteristic according to the power off is as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Thereafter, if the rated power is set to be supplied to the test apparatus 200 by using the user interface 111 configured in the management module 110, the control unit 112 configured in the management module 110 may adjust / measure the module ( The rated voltage is supplied to the test target power supply 200 by adjusting the output voltage of the voltage supply 121 configured at 120.

As described above, power is cut off while the rated power is supplied to the test target power supply 200, and the first and second instruments 124 and 125 configured in the adjustment / measurement module 120 are provided. When the power supply to the test target power supply 200 is cut off, the output characteristic until the output power drops to a predetermined amount is measured and provided to the management module 110.

As can be seen in FIG. 3, the output characteristic can be measured by dividing the total starting time, for example, the hold time and the fall time, after the power is turned off, for example, to output power of 10% or less.

The control unit 112 of the management module 110 analyzes the output characteristics of the power cutoff of the test target power supply 200 provided from the first instrument 124 and the second instrument 125 and displays the result. 114), and output in the form of a predetermined report.

Then, the power-off output characteristic of the test target power supply 200 is recorded in a data table set in the database 113 so that history management and tracking management can be provided.

In a sixth embodiment, the operation of measuring the internal temperature of the test target power supply is as follows.

As can be seen in FIG. 6, the test target power supply 200, which is separated from the measurement facility or the control facility, is connected to the interface unit 127 of the adjustment / measurement module 120 through the connector 130. Prepare a performance measurement of 200.

Then, using the user interface 111 configured in the management module 110 to set the conditions, such as the voltage, current fluctuation amount, load fluctuation amount supplied to the test apparatus 200, and then inside the test target power supply 200 Perform a temperature measurement.

Therefore, the control unit 112 configured in the management module 110 adjusts the output of the voltage supply 121 configured in the adjustment / measurement module 120 to the set condition according to the set condition to the test target power supply 200. Supply.

Thereafter, the control unit 112 of the management module 110 measures the temperature change of the test target power supply 200 through the second instrument 125 connected to the routing module 126 as the test proceeds.

The measured temperature change is respectively measured for conditions such as voltage, current variation, load variation, and phase variation supplied to the test target power supply 200.

The control unit 112 of the management module 110 analyzes the internal temperature characteristics of the test target power supply device 200 measured by the second measuring instrument 125 and displays the result in the format set by the display unit 114. Output in the form of a predetermined report.

Then, by recording the internal temperature characteristics of the test target power supply 200 in a data table set in the database 113 so that history management and tracking management can be provided.

Hereinafter, while varying the input frequency of the power supplied to the test target power supply 200 through the above operation to 47Hz to 63Hz, by measuring and analyzing the characteristics of the voltage output from the test target power supply 200, and analyzed Output frequency, traceability and traceability of results are measured.

In addition, when the current supplied to the load connected to the output terminal of the test target power supply 200 through the above-described operation, the curve characteristics of the current as shown in FIG. Can be measured and analyzed, and the current limit characteristics provided with the output of the analyzed results, history management and tracking management can be measured.

In addition, the magnitude of the voltage output from the test target power supply 200 through the above-described operation, and when the voltage rises above the protection voltage and the operating state of the change rate and the protection circuit of the test target power supply 200 Measurement and analysis as shown in the above, the output of the analyzed results, history management and tracking management provided with the overvoltage protection characteristics can be measured.

In addition, the above-described operation outputs an overcurrent of a rated output current or more to a load connected to the output terminal of the test target power supply 200, and changes the speed and the protection circuit of the test target power supply 200 when rising above the protective current. It can measure and analyze the operating status of and measure the overcurrent protection characteristics provided by the output of the analyzed results, history management and tracking management.

In addition, by shortening the output of the test target power supply 200 through the above-described operation, by measuring the size of the input power and the state in which the protection circuit of the test target power supply 200 is operated, the analysis of the results The short circuit characteristics provided with output, traceability and traceability can be measured.

In addition to the above characteristics, when the power factor characteristic of the power input to the test target power supply 200 and the power input to the test target power supply 200 occur momentarily due to disconnection or loss, the test target power supply 200 Measuring the operating characteristics of the characteristics according to the input failure, measurement of the input and output characteristics of the control signal input to the test target power supply 200, measurement of the adjustment angle and the variable range of the voltage output from the test target power supply 200 Since the same to similar implementations for, the detailed description thereof will be omitted.

As described above, when various performances are measured with respect to the test target power supply 200, the management module 110 may predict the result of normal, calibration, repair, and the like by analyzing the measurement result by the drift technique.

The management module 110 may provide tracking management for the test target power supply 200 by estimating a probability of a point in time requiring correction or repair based on the current measured result.

That is, if the performance measured in the test target power supply is less than the steady state setting range, for example, ± 0.025% error range, it is determined as the normal state, and the measured performance is the calibration state setting range, for example, ± 0.025% or more, ± 0.05 If it is within the% error range, it is determined that calibration is necessary, and if the measured performance is within the set range of the repair status, for example, ± 0.05% or more, it may be determined to be repaired.

The estimation technique using the probability can be applied, for example, as follows.

The state of the power supply under test is divided into normal and abnormal. Initially, it is normal and deterioration occurs according to the operation time.

Next round status Normal: G Over: F
Current Status Normal: G 0.7 0.3 Over: F 0.0 1.0

In the above, normal may be displayed as '1', and abnormality may be displayed as '0', and the next round state is a value assumed through repetitive testing, and the normal state when the next round is entered from the current state 70 % Means to stay in a steady state and 30% means to enter into an abnormal state.

In case of an abnormal state when entering the next round from the current state, 40% is restored to the normal state, and 60% means that the abnormal state is maintained as it is.

Therefore, it can be displayed as follows.

Current state [PnG, PnF] = [1,0], n means the performance measurement of the power supply under test.

]Transition matrix

]

Assuming that '0' is the current state by using the above two, and calculating the probability (P1G) of moving the current steady state (G) to the steady state (G) at n = 1 (1st round), .

P1G = P0G × P1G | P0G + P0F × P1G | P0F = 1 × 0.7 + 0 × 0.4 = 0.7

In addition, assuming that the turn '0' is current, and calculates the probability (P1F) of moving the current steady state (G) to the abnormal state (F) at n = 1 (1 round) is as follows.

P1F = P0G × P1F | P0G + P0F × P1F | P0F = 1 × 0.3 + 0 × 0.6 = 0.3

And, if the probability (P2G) of the steady state (G) that can be expected at n = 2 (second round) to move to the steady state (G) is calculated as follows.

P2G = P1G × P2G | P1G + P1F × P2G | P1F = 0.7 × 0.7 + 0.3 × 0.4 = 0.61

In addition, if the probability (P2F) of the steady state (G) that can be expected at n = 2 (second round) to move to the abnormal state (F) is calculated as follows.

P2F = P1G × P2F | P1G + P1F × P2F | P1F = 0.7 × 0.3 + 0.3 × 0.6 = 0.39

The above procedure can be used to estimate the number of performance measurements for which a calibration or repair is determined.

In addition, the above procedure can be represented by the following method.

= [1 0]×

= [0.7 0.3][P1G P1F] = [P0G P0F] ×

= [1 0] ×

= [0.7 0.3]

= [0.7 0.3]×

= [0.61 0.39][P2G P2F] = [P1G P1F] ×

= [0.7 0.3] ×

= [0.61 0.39]

...

ⁿ [PnG PnF] = [P0G P0F] ×

ⁿ

The transition matrix of the above result is represented by TM, and can be formulated as follows.

[PnG PnF] = [P0G P0F] × TM ⁿ

Therefore, the state set of the power supply can be subdivided into normal (G), calibration (C), and repair (F), and expressed as a transition matrix and can be expressed as follows.

TM =

[0.7 0.2 0.1] is the probability of the steady state (G), [0 0.7 0.3] is the probability of the calibration state (C), [0 0 1] means the probability of the repair state (F).

로 정리될 수 있다.Thus, [PnG PnC PnF] = [P0G P0C P0F] x TM ⁿ = [1 0 0] ×

Can be cleaned up as

When the performance measurement is repeated for the power supply under test, the following results are obtained according to the above equation.

       G (normal) C (calibration) F (repair)

n = 0 1.0000 0 0

n = 1 0.7000 0.2000 0.1000

n = 2 0.4900 0.2800 0.2300

n = 3 0.3430 0.2940 0.3630

n = 4 0.2401 0.2744 0.4855

n = 5 0.1681 0.2401 0.5918

n = 6 0.1176 0.2017 0.6807

n = 7 0.0824 0.1647 0.7529

                  ...

       0.0002 0.0013 0.9985

       0.0001 0.0010 0.9989

       0.0001 0.0007 0.9992

       0.0001 0.0005 0.9994

                  ...

       0.0000 0.0001 0.9999

       0.0000 0.0001 0.9999

       0.0000 0.0000 1.0000

Based on the above results, it is possible to predict the time limit for calibration and repair for the power supply under test.

For example, if the probability of calibration decreases below 20%, repairs can increase by 68% or more, so you might decide to repair a power supply with performance equal to n = 6 (6th round). Power supplies with performance between n = 5 (5 times) and n = 6 (6 times) can be expected to be repaired in the next inspection cycle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

110: management module 120: adjustment / measurement module
130: connector 200: power supply device under test

Claims (13)

A management module for setting performance measurement conditions of the test target power supply, analyzing the measurement results measured by the test target power supply as a data table, and outputting the measured results in a set format;
An adjustment / measurement module for adjusting a performance measurement condition according to a control signal of the management module and supplying the power supply to a test target power supply, and measuring and outputting a characteristic output from the test target power supply according to the adjusted performance measurement condition to a management module;
/ RTI >
The management module analyzes the current measured result in a transition matrix and estimates a time point when a correction or repair is necessary, and provides tracking management of the power supply device under test. The method of claim 1,
And a jig-type connector for connecting the input / output terminal and the adjustment / measurement module configured in the test target power supply. The method of claim 1,
The management module is a power supply performance diagnostic system, characterized in that to provide a screen and report output of the performance measurement results and analysis results of the test target power supply. The method of claim 1,
The management module may include an output voltage change characteristic according to a change amount of an input voltage supplied to a test target power supply device;
Output voltage fluctuation characteristics according to load fluctuations connected to an output of a power source under test;
Deterioration characteristics generated when the power supply under test is exposed to a certain load for a long time;
Output characteristics until the output rises above a predetermined value when the power is supplied to the test target power supply;
Output characteristics until the output falls below a predetermined value when the power input to the test target power supply is cut off;
An output voltage characteristic generated when the power frequency input to the test target power supply device is varied;
Current curve characteristics generated when current above the limit flows through the load connected to the output of the power supply under test;
An overvoltage protection operation characteristic which is operated when the magnitude of the output voltage of the power supply under test varies and rises above the set rated voltage;
An overcurrent protection operation characteristic which is activated when the magnitude of the output current of the power supply under test varies and rises above the set rated current;
The size of the input power supply and the operating characteristics of the protective function when the output of the power supply under test is short-circuited;
Power factor characteristics of the power input to the device under test;
Operating characteristics of the power supply under test when an input failure occurs due to a momentary disconnection or loss of power input to the power supply under test;
Operation state characteristics including input / output control signals, alarms, and operation abnormalities with the power source under test;
Variable range characteristics of the voltage output from the power supply under test;
Power system performance diagnostic system, characterized in that to provide tracking management by measuring and analyzing the data. delete The method of claim 1,
The management module may include: a user interface for interfacing performance measurement conditions input by a user (administrator) and a request for analysis of measured results;
A control unit which automatically executes the performance measurement of the test target power supply according to the measurement conditions input from the user interface, analyzes the measured results as a data table in a database, and controls the output of the measurement results;
A database for storing performance measurement and analysis results of a test target power supply in a data table according to a control signal of the controller;
A display unit for outputting an operating state in a predetermined format as a result of performance measurement and analysis of the test target power supply;
Power supply performance diagnostic system comprising a. The method according to claim 6,
The user interface includes a numeric key and a function key, the power supply performance diagnostic system, characterized in that consisting of a keypad or touch screen. The method according to claim 6,
The control unit is characterized in that the line drift rate characteristics, load drift rate characteristics, deterioration degree, the output characteristics of the power supply, the output characteristics of the power interruption, the internal temperature, the frequency variable characteristics, the current limiting characteristics, the overvoltage of the power supply under test A power supply performance diagnosis system characterized by measuring protection characteristics, overcurrent protection characteristics, circuit short circuit characteristics, power factor characteristics, instantaneous input failure characteristics, input / output logic characteristics, and voltage variable range characteristics. The method of claim 1,
The adjustment / measurement module may include: a power supply for supplying power in the form of AC, DC, AC + DC to a power source under test under the control of a management module;
A load controller for adjusting the output load of the power supply device under test according to the control of the management module;
A power regulator for supplying overvoltage and overcurrent by varying the size of the power input to the power source under test according to the control of the management module;
A first measuring instrument for measuring the power supply state and the ripple output from the test target power supply device and providing it to the management module;
A routing module for supplying the variable power output from the power regulator to the test target power supply and providing an overvoltage and overcurrent protection function and an internal temperature of the test target power supply to the second instrument;
A second measuring instrument measuring an input / output voltage and an internal temperature of a power source under test through a routing module and providing the same to a management module;
An interface unit which connects an adjustment / measurement module and a test target power supply device to provide power and data transmission and reception;
Power supply performance diagnostic system comprising a. 10. The method of claim 9,
And the power supply unit performs voltage, current limiting, overvoltage, overcurrent protection, phase angle control, and frequency varying with respect to the power supplied to the power source under test according to the control of the management module. A user interface for interfacing performance measurement conditions input by a user (administrator) and a request for analysis of measured results;
A control unit which automatically executes performance measurement of the test target power supply according to the measurement condition input from the user interface, analyzes the measured result, and manages and outputs the result as a data table;
A power supply for supplying power in the form of AC, DC, AC + DC to the power source under test under the control of the controller;
A load controller for adjusting an output load of the test target power supply device under control of the controller;
A power regulator configured to supply an overvoltage and an overcurrent by varying the size of the power input to the test target power supply under the control of the controller;
A first measuring device for measuring the power supply state and the ripple output from the test target power supply device and providing the same to the control unit;
A routing module for supplying the variable power output from the power regulator to the test target power supply and providing an overvoltage and overcurrent protection function and an internal temperature of the test target power supply to the second instrument;
A second measuring instrument measuring an input / output voltage and an internal temperature of a test target power supply device through a routing module and providing the same to a control unit;
An interface unit which connects an adjustment / measurement module and a test target power supply device to provide power and data transmission and reception;
A database for storing performance measurement and analysis results of a test target power supply in a data table according to a control signal of the controller;
A display unit for outputting an operating state in a predetermined format as a result of performance measurement and analysis of the test target power supply;
Power supply performance diagnostic system comprising a. 12. The method of claim 11,
The control unit is a power supply performance diagnostic system, characterized in that to provide a tracking management by analyzing the results measured in the test target power supply to estimate the time points that need to be corrected, repaired. 12. The method of claim 11,
The control unit may include an output variation characteristic according to an input voltage variation of a test target power supply device;
Output fluctuation characteristics according to load fluctuations connected to the output of the power source under test;
Degradation characteristics of the power supply under test;
Rising characteristic of the output voltage at the time of power-up of the power device under test;
Falling characteristic of the output voltage at the time of power off of the power supply under test;
Output characteristics when the input power frequency of the power supply under test varies;
Current curve characteristics when the current flowing in the load connected to the output of the power supply under test is greater than or equal to the limit value;
Overvoltage / overcurrent protection characteristics when the power supply under test is above rated;
Protection characteristics when the output of the power supply under test is short-circuited;
Power factor characteristics of the power input to the power supply device under test;
Operation characteristics when an input failure of power input to the power source under test occurs;
Operating status with the device under test;
Variable range characteristics of the voltage output from the power supply under test;
Power supply performance diagnostic system, characterized in that for providing a measurement and analysis.

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