WO2014046319A1 - 배전기기의 전압 및 전류의 전송 오차에 대한 자동 보정 장치 및 방법 - Google Patents
배전기기의 전압 및 전류의 전송 오차에 대한 자동 보정 장치 및 방법 Download PDFInfo
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- WO2014046319A1 WO2014046319A1 PCT/KR2012/007592 KR2012007592W WO2014046319A1 WO 2014046319 A1 WO2014046319 A1 WO 2014046319A1 KR 2012007592 W KR2012007592 W KR 2012007592W WO 2014046319 A1 WO2014046319 A1 WO 2014046319A1
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- value
- current
- error
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Definitions
- the present invention relates to an apparatus and method for automatically calibrating the transmission error of the voltage and current of the distributor (APPARATUS AND METHOD FOR AUTOMATICALLY CORRECTING TRANSMISSION ERROR OF VOLTAGE AND CURRENT IN ELECTRIC POWER DISTRIBUTION SYSTEM)
- the present invention relates to an apparatus and a method for automatically correcting a transmission error that may occur in a voltage and current value measured in FIG.
- a conventional power distribution system is further described with reference to FIG. 1.
- the current and voltage values measured by the existing distributor 10 are transmitted to the distribution management system 30 via the control unit 20.
- the current measurement in the distributor 10 is made through the instrument current transformer (CT).
- CT instrument current transformer
- the voltage measurement in the distributor 10 is made through at least one of an instrument transformer (PT), a CVD type voltage sensor using a capacitor, and an RVD type voltage sensor using a resistor.
- PT instrument transformer
- PT CVD type voltage sensor using a capacitor
- RVD type voltage sensor using a resistor.
- the control unit 20 receives the current and voltage values measured by the distributor 10, and outputs the converted analog voltage and current values according to the received values. This output consists of a voltage ratio of 13200V: 4V and a current ratio of 630A: 0.63A. The reason for performing this conversion is that the higher the value used for digital conversion or for future maintenance, the greater the cost. Thereafter, the converted value is transmitted to the power distribution operating system 30.
- the values measured at the distributor 10 may not be accurate and may have errors, as mentioned above.
- the name of the invention is "voltage, current measurement and error correction system and method of the high-voltage system", there is a Korean Patent Publication No. 2010-0029931 published on March 18, 2010.
- the present invention corrects the errors that may exist in the voltage and current values measured by the distributors through more accurate measurement to solve the above conventional problems, and the errors that may occur in the transmission of these measured values to the outside It is also an object of the present invention to provide an apparatus and method that can automatically correct.
- Automatic correction device of the present invention for solving the above problems is a first measuring unit for defining a reference value by measuring the current and voltage values flowing on the distribution line;
- a second measuring unit configured to measure a converted value output by converting current and voltage values measured by a power distribution device installed on a distribution line at a predetermined reference ratio by a transducer;
- a processor configured to calculate an error value of the converted value if the ratio between the reference value and the converted value is not within an error range of the preset reference ratio;
- a correction unit configured to correct the converted value by adjusting the variable resistor based on the error value.
- the automatic transmission error correction apparatus after the correction in the correction unit, characterized in that for transmitting the corrected conversion value back to the processing unit to confirm that the correction is made correctly.
- the corrector may further include: an adjuster controller configured to control to correct the converted value according to the error value calculated by the processor; And a regulator including an electric motor for automatically adjusting the variable resistance according to the control.
- the processor may further include a time and location information detector configured to detect time and location information of the converted value measured from the second measurement unit; And a data processor configured to calculate an error value based on the reference value when the ratio between the reference value and the converted value is not within an error range of a preset reference ratio.
- the automatic transmission error correction method is characterized in that, after the correction in the correction step, the corrected conversion value is transferred to the calculation step to confirm that the correction is made correctly.
- the correcting step may further include controlling to correct the converted value according to the error value calculated in the calculating step; And automatically adjusting the variable resistor according to the control.
- the calculating step may further include detecting time and position information of the measured conversion value from the measuring step of the conversion value; And calculating an error value based on the reference value if the ratio of the reference value and the converted value is not included in the error range of the preset reference ratio.
- Automatic correction device of the present invention for solving the above problems is a first measuring unit for defining a reference value by measuring the current and voltage values flowing on the distribution line;
- a third measuring unit configured to analyze and measure current and voltage values converted into digital values and transmitted to the power distribution operating system; If the ratio between the reference value and the current and voltage values transmitted to the power distribution operating system is not within the error range of the preset reference ratio, the error value of the current and voltage values transmitted to the power distribution operating system is calculated based on the reference value.
- Processing unit And a correction unit configured to correct current and voltage values transmitted to the power distribution operating system by adjusting the variable resistor based on the error value.
- the automatic transmission error correction apparatus is characterized in that after the correction in the correction unit, to transmit the corrected current and voltage values back to the processing unit to confirm that the correction is made correctly.
- the correction unit may further include: an adjuster controller configured to control to correct current and voltage values transmitted to the power distribution operating system according to the error value calculated by the processor; And a regulator including an electric motor for automatically adjusting the variable resistance according to the control.
- the processor may further include: a time and location information detector configured to detect time and location information of current and voltage values transmitted from the third measurement unit to the power distribution operating system; And a data processor configured to calculate an error value based on the reference value when the ratio between the reference value and the current and voltage values transmitted to the power distribution operating system is not included in the error range of the preset reference ratio.
- the automatic correction method of the present invention for solving the above problems comprises the steps of defining a reference value by measuring the current and voltage values flowing on the distribution line; Analyzing and measuring current and voltage values converted to digital values and sent to the power distribution operating system; Calculating an error value of the current and voltage values transmitted to the power distribution operating system based on the reference value if the ratio between the reference value and the current and voltage values transmitted to the power distribution operating system is not included in the error range of the preset reference ratio. ; And correcting current and voltage values transmitted to the power distribution operating system by adjusting a variable resistor based on the error value.
- the automatic transmission error correction method is characterized in that, after the correction in the correction step, the corrected current and voltage values are transferred to the calculation step to confirm that the correction is made correctly.
- the correcting step may include controlling to correct current and voltage values transmitted to the power distribution operating system according to the error value calculated in the calculating step; And automatically adjusting the variable resistor according to the control.
- the calculating step includes detecting time and position information of the measured value from the measuring of current and voltage values transmitted to the power distribution operating system; And calculating an error value based on the reference value if the ratio between the reference value and the current and voltage values transmitted to the power distribution operating system is not included in the error range of the preset reference ratio.
- the present invention has the advantage that can be applied irrespective of the type of power distribution equipment installed in compliance with the requirements according to the international convention.
- FIG. 1 is a conceptual diagram illustrating an embodiment to which the automatic correction device of the present invention is applied.
- FIG. 2 is a block diagram showing an embodiment to which the automatic correction device of the present invention is applied.
- FIG. 3 is a block diagram illustrating in detail the processing unit included in the automatic correction device of the present invention.
- FIG. 4 is a block diagram showing another embodiment to which the automatic correction device of the present invention is applied.
- FIG 5 illustrates a data packet actually transmitted to the power distribution operating system in the automatic calibrating apparatus of the present invention.
- FIG. 6 is a flowchart illustrating an automatic correction method according to an embodiment of the present invention.
- FIG. 7 is a flowchart illustrating an automatic correction method according to another embodiment of the present invention.
- FIG. 1 is a conceptual diagram illustrating an embodiment to which the automatic correction device of the present invention is applied. That is, FIG. 1 illustrates an embodiment in which the automatic correction device 100 of the present invention is applied to the existing power distribution system 10, 20, 30.
- the automatic correction device 100 of the present invention measures the actual current and voltage values, and functions to correct the current and voltage values measured by the power distribution device.
- the automatic correction device 100 of the present invention is the error of the measurement value that may occur in the control unit 20 and the error that may occur in the communication between the control unit 20 and the distributor 10 and the power distribution operating system 30. Can be corrected.
- This automatic correction device 100 of the present invention is described in more detail with reference to FIGS. 2 and 4 below.
- An embodiment of the present invention is an error that may occur in the current and voltage values measured in the distributor 10, an error that may occur in the conversion of the current and voltage values in the converter 21 in the control unit 20, and the converter ( Focusing on the correction of errors that may occur in the transfer of current and voltage values to the terminal device 22 in 21).
- the automatic calibration device includes a first measuring unit 110, a second measuring unit 120, a correcting unit 130, and a processing unit 140.
- the first measuring unit 110 measures the actual current and voltage values flowing in the distribution line.
- the actual current and voltage values measured by the first measurement unit 110 are defined as "reference values".
- the measuring equipment used in the first measuring unit 110 may be a device used for measuring the current and voltage in the distributor 10, the existing equipment that is high accuracy and precision for the measurement or to be developed later May be
- the first measurement unit 110 functions to transmit the reference value to the processing unit 140. Such delivery may be via at least one of wired and wireless.
- the second measuring unit 120 measures the analog output value transmitted from the converter 21 to the terminal device 22, that is, a conversion value of the current and voltage values measured from the distributor 10. do.
- these analog output values are referred to as "conversion values”. This conversion value is used to check whether there is an error in the current and voltage values measured in the power distribution device 10, as mentioned above.
- the converted value is transferred to the processing unit 140 for the following processing.
- the processor 140 compares the ratio of the reference value transmitted from the first measurement unit 110 to the conversion value received from the second measurement unit 120 and the preset reference ratio, and if the ratio is different, the reference value is determined.
- the error value of the conversion value is calculated on the basis.
- the predetermined reference ratio includes a voltage ratio of 13200V: 4V and a current ratio of 630A: 0.63A.
- this predetermined reference ratio is defined to meet the ratio of the converter 21 described above, and may be changed according to a situation or a user-defined ratio.
- the processor 140 transmits the error value to the corrector 130 again.
- the processor 140 may separately record time and location information to assist in future maintenance.
- the correction unit 130 functions to actually correct the converted value using the error value received from the processing unit 140.
- the corrector 130 adjusts according to an error value calculated by the processor and an adjuster including an electric motor to automatically adjust the variable resistor included in the converter 21.
- an adjuster control unit for controlling the adjuster.
- the regulator may comprise not only an electric motor, but also all means capable of automatically adjusting the variable resistor. Therefore, when the adjuster controller of the corrector 130 receives the error value transmitted from the processor 140, the adjuster controller instructs the adjuster to perform correction based on the error value. The regulator then adjusts the variable resistor by the error value delivered according to this indication. After the adjustment is made, a check is made to see if the correction has been made correctly.
- the corrected value is transferred back to the processing unit 140.
- the processor 140 receives the corrected value, the comparison between the reference value and the corrected value ratio and the preset reference ratio is performed again, and the above-described process is performed. This process is repeated until it is determined that the corrected value has been corrected correctly.
- the processor 140 includes a time and location information detector 141 and a data processor 142.
- the time and location information detector 141 detects the time and position information of the converted value. And record it on a recording medium. This information can be used for subsequent maintenance of the distribution equipment or distribution line. These values are then passed to the data processor 142.
- the data processor 142 compares the reference value with the converted value.
- the predetermined reference ratio between the reference value and the converted value is 13200V: 4V in voltage and 630A: 0.63A in current.
- an error value of the converted value is calculated based on the reference value. For example, assume that the voltage of the reference value measured from the first measuring unit 110 is 13200V, the current is 630A, the voltage of the conversion value transferred from the converter 21 is 3.8V, and the current is 0.6A.
- the correct voltage and current values corresponding to the reference value are 4V and 0.63A, respectively, according to a predetermined reference ratio, error values of + 0.2V and + 0.03A are calculated.
- the voltage of the conversion value transferred from the converter 21 is 4.2V and the current is 0.7A
- error values of -0.2V and -0.07A are calculated based on the ratio to the reference value. This calculated value is referred to as the error value.
- the error value is transmitted to the correction unit 130 to correct the converted value.
- the predetermined reference ratio may be changed according to the setting of the converter 20 or according to the setting of the user.
- the processor 140 may include a display and a setting unit to enable the user to check the correction value, the error value, and the error ratio. Through this, the user can set the correction error ratio limit and input information on the maintenance target device, and can improve the data management and reliability of the maintenance work of the user.
- FIGS. 4 and 5 Another embodiment of the automatic correction device of the present invention will be described with reference to FIGS. 4 and 5.
- Another embodiment of the present invention may occur in the process of transmitting the current and voltage values from the terminal device 22 to the power distribution operating system 30, that is, the error occurring during transmission and the conversion to digital values according to international conventions. Focus on the correction of errors.
- Such another embodiment may be a correction that is additionally performed when the above-described embodiment is not properly performed or when more accurate correction is required.
- the embodiment to be described in FIG. 4 may be a correction that may be performed separately or selectively from one embodiment described above.
- the terminal device 22 is a device that can receive a command from the power distribution operating system 30 and perform a remote control function for the power distribution device.
- the terminal device 22 can provide an analysis of the cause of the accident to store all the events generated on the distribution line, and transmit the state of the wiring line to the processing unit 140 to process the state monitoring and control from afar. Can be.
- the third measurement unit 150 included in the automatic calibration device of the present invention measures the current and voltage values transmitted from the terminal device 22 to the power distribution operating system 30.
- the third measuring unit 150 may be in the form of a connector.
- the current and voltage values transmitted to the power distribution operating system 30 are values converted into digital signals according to international conventions including DNP 3.0 and IEC 61850.
- An example of the digital signal transmitted to the power distribution operating system 30 is shown in FIG. 5.
- the underlined parts indicate measured values such as voltage and current.
- the part representing the measured value starts with “1E 02 00".
- "01 74 00", “01 78 00” and “01 78 00” represent A phase, B phase and C phase currents, respectively.
- "01 A6 31", “01 8C 32" and “01 EC 31” represent the power supply side A phase, B phase and C phase voltages, respectively, and "01 14 32", “01 82 32" and "01 28".
- 32 "represents load gain A phase, B phase, and C phase voltage, respectively. Since the signal transmitted to the power distribution operating system 30 is converted according to the international convention, the third measuring unit 150 may measure current and voltage values through analysis of the signal. Thereafter, the measured current and voltage values are transferred to the processor 140.
- the process performed in the processing unit 140 is similar to the process of processing the transform value, described above with reference to FIG. 3. Therefore, for the clarity of the description, the description of the process performed in the processor 140 will be made except for the overlapping part.
- the processor 140 receives a reference value from the first measurement unit 110 and a current and voltage value transmitted from the third measurement unit 150 to the power distribution operating system 30. Thereafter, the time position information detector 141 detects time and position information of current and voltage values transmitted from the power distribution operating system 30. As mentioned earlier, this information is later used for maintenance of distribution equipment or distribution lines. These values are then passed to the data processor 142.
- the power distribution operating system 30 is based on the reference value. Calculate the error value of the current and voltage values transmitted by. As described above, the error value is transmitted to the correction unit 130, and correction is performed so that current and voltage values transmitted to the power distribution operating system 30 are correctly output.
- the above-described ratio may vary according to the user's setting and in accordance with the ratio of the converter 21.
- the correction is performed based on the measurement of both current and voltage in the foregoing process, only one of the current and the voltage may be measured, and only one of them may be performed.
- An embodiment of the present invention is an error that may occur in the current and voltage values measured by the distributor 10, the error that may occur in the conversion of the current and voltage values, and the error that may occur in the transfer of the current and voltage values Focus on the correction.
- FIG. 6 is a flowchart illustrating an automatic correction method according to an embodiment of the present invention.
- an actual current and voltage value flowing in a distribution line is measured, and step S110 of defining this value as a reference value is performed.
- the reference value here is the reference current and voltage value that is used for later correction. Therefore, this value should be measured through existing measuring equipment with high accuracy or precision or measuring equipment to be developed in the future.
- step S120 of measuring the value output from the converter is performed.
- the voltage value measured by the distributor 10 is 13200V: 4V, and the measured current value is converted to a predetermined reference ratio of 630A: 0.63A. That is, if the measured voltage value is 13200V and the current value is 630A, the converted voltage value is 4V and the converted current value is output as 0.63A.
- conversion value the ratios described above may vary depending on the situation or the user's settings.
- a step (S130) of comparing the error range between the reference value and the conversion value and the preset reference ratio is performed.
- the predetermined reference ratio is 13200V: 4V in voltage and 630A: 0.63A in current.
- a step (S140) of calculating an error value of the converted value based on the reference value is performed. This error value is used to correct the conversion value measured by the second measurement unit 120, as mentioned above with reference to FIGS. 1 and 2.
- step S150 of correcting the conversion value is performed by adjusting the variable resistance in the converter 21 based on the error value.
- the adjustment of this variable resistor is made through a regulator including an electric motor or the like.
- control is passed back to step S130 to confirm that the correction was made correctly.
- a comparison between the reference value and the corrected value is performed to confirm whether the corrected value is a corrected value. This process is repeated until the corrected value is determined to be corrected.
- FIG. 7 Another embodiment of the present invention focuses on the error occurring when transmitting current and voltage values from the terminal device 22 to the power distribution operating system 30 and the correction of errors that may occur when converting them to digital values. Such other embodiments may be additionally made after one embodiment of the present invention is made, or may be performed separately or selectively from one embodiment of the present invention.
- FIG. 7 is a flowchart illustrating an automatic correction method according to another embodiment of the present invention.
- a step of measuring the actual current and voltage values flowing in the distribution line and defining these values as reference values is performed (S210).
- the reference value is the current and voltage value that becomes the reference used for subsequent correction.
- a step (S220) of analyzing and measuring current and voltage values transmitted to the power distribution operating system 30 is performed.
- the current and voltage values transmitted to the power distribution operating system 30 are values converted into digital signals according to international conventions including DNP 3.0, IEC 61850, and the like.
- a step (S230) of comparing the error range between the reference value and the ratio of the current and voltage values transmitted to the power distribution operating system 30 with the preset reference ratio is performed.
- the preset reference ratio here is 13200V: 4V in voltage and 630A: 0.63A in current.
- step S250 is performed to adjust the variable resistor in the converter 21 based on the error value to correct the current and voltage values transmitted to the power distribution operating system 30.
- the adjustment of this variable resistor is made through a regulator including an electric motor or the like.
- control is passed back to step S230 to confirm that the correction was made correctly.
- a comparison between the reference value and the corrected value is performed to confirm whether the corrected value is a corrected value. This process is repeated until it is determined that the corrected value has been correctly corrected.
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Abstract
Description
Claims (16)
- 배전 선로 상에 흐르는 전류 및 전압 값을 측정하여 기준 값을 정의하는 제 1 측정부;상기 배전 선로 상에 설치된 배전 기기에서 측정한 전류 및 전압 값이 변환기(transducer)에서 기설정된 기준 비율로 변환되어 출력되는 변환 값을 측정하는 제 2 측정부;상기 기준 값과 상기 변환 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 변환 값의 오차 값을 계산하는 처리부; 및상기 오차 값을 기초로 가변 저항의 조정을 통해 상기 변환 값을 보정하는 보정부를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제1항에 있어서,상기 전송 오차 자동 보정 장치는,상기 보정부에서의 보정이 이루어진 후, 상기 보정이 정확히 이루어졌는지 확인하기 위해 상기 보정된 변환 값을 다시 상기 처리부로 전송하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제1항에 있어서,상기 보정부는,상기 처리부에서 계산된 오차 값에 따라 상기 변환 값을 보정하도록 제어하는 조정기 제어부; 및상기 제어에 따라 상기 가변 저항을 자동으로 조정하기 위한 전동 모터를 포함하는 조정기를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제1항에 있어서,상기 처리부는,상기 제 2 측정부로부터 측정된 상기 변환 값의 시간 및 위치 정보를 탐지하는 시간 및 위치 정보 탐지부; 및상기 기준 값과 상기 변환 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 상기 오차 값을 산출하는 데이터 처리부를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 배전 선로 상에 흐르는 전류 및 전압 값을 측정하여 기준 값을 정의하는 단계;상기 배전 선로 상에 설치된 배전 기기에서 측정한 전류 및 전압 값이 기설정된 기준 비율로 변환되어 출력되는 변환 값을 측정하는 단계;상기 기준 값과 상기 변환 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 변환 값의 오차 값을 계산하는 단계; 및상기 오차 값을 기초로 가변 저항의 조정을 통해 상기 변환 값을 보정하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제5항에 있어서,상기 전송 오차 자동 보정 방법은,상기 보정 단계에서의 보정이 이루어진 후, 보정이 정확히 이루어졌는지 확인하기 위해 상기 보정된 변환 값을 상기 계산 단계로 전달하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제5항에 있어서,상기 보정 단계는,상기 계산 단계에서 계산된 오차 값에 따라 상기 변환 값을 보정하도록 제어하는 단계; 및상기 제어에 따라 상기 가변 저항을 자동으로 조정하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제5항에 있어서,상기 계산 단계는,상기 변환 값의 측정 단계로부터 측정된 상기 변환 값의 시간 및 위치 정보를 탐지하는 단계; 및상기 기준 값과 상기 변환 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 오차 값을 산출하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 배전 선로 상에 흐르는 전류 및 전압 값을 측정하여 기준 값을 정의하는 제 1 측정부;디지털 값으로 변환되어 배전 운영 시스템으로 송신되는 전류 및 전압 값을 분석하고 측정하는 제 3 측정부;상기 기준 값과 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 비율이 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 오차 값을 계산하는 처리부; 및상기 오차 값을 기초로 가변 저항의 조정을 통해 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값을 보정하는 보정부를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제9항에 있어서,상기 전송 오차 자동 보정 장치는,상기 보정부에서의 보정이 이루어진 후, 보정이 정확히 이루어졌는지 확인하기 위해 상기 보정된 전류 및 전압 값을 다시 상기 처리부로 전송하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제9항에 있어서,상기 보정부는,상기 처리부에서 계산된 오차 값에 따라 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값을 보정하도록 제어하는 조정기 제어부; 및상기 제어에 따라 상기 가변 저항을 자동으로 조정하기 위한 전동 모터를 포함하는 조정기를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 제9항에 있어서,상기 처리부는,상기 제 3 측정부로부터 측정된 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 시간 및 위치 정보를 탐지하는 시간 및 위치 정보 탐지부; 및상기 기준 값과 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 상기 오차 값을 산출하는 데이터 처리부를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 장치.
- 배전 선로 상에 흐르는 전류 및 전압 값을 측정하여 기준 값을 정의하는 단계;디지털 값으로 변환되어 배전 운영 시스템으로 송신되는 전류 및 전압 값을 분석하고 측정하는 단계;상기 기준 값과 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 비율이 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 오차 값을 계산하는 단계; 및상기 오차 값을 기초로 가변 저항의 조정을 통해 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값을 보정하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제13항에 있어서,상기 전송 오차 자동 보정 방법은,상기 보정 단계에서의 보정이 이루어진 후, 보정이 정확히 이루어졌는지 확인하기 위해 상기 보정된 전류 및 전압 값을 상기 계산 단계로 전달하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제13항에 있어서,상기 보정 단계는,상기 계산 단계에서 계산된 오차 값에 따라 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값을 보정하도록 제어하는 단계; 및상기 제어에 따라 상기 가변 저항을 자동으로 조정하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
- 제13항에 있어서,상기 계산 단계는,상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 측정 단계로부터 측정된 값의 시간 및 위치 정보를 탐지하는 단계; 및상기 기준 값과 상기 배전 운영 시스템으로 송신되는 전류 및 전압 값의 비율이 상기 기설정된 기준 비율의 오차 범위 내에 포함되지 않으면, 상기 기준 값을 기초로 오차 값을 산출하는 단계를 포함하는 것을 특징으로 하는, 전송 오차 자동 보정 방법.
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| KR10-2012-0104711 | 2012-09-20 | ||
| KR1020120104711A KR101307098B1 (ko) | 2012-09-20 | 2012-09-20 | 배전기기의 전압 및 전류의 전송 오차에 대한 자동 보정 장치 및 방법 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442019A (zh) * | 2021-12-31 | 2022-05-06 | 苏州浪潮智能科技有限公司 | 一种测试工具的测试校正方法、装置及电子设备 |
| CN119324576A (zh) * | 2024-12-19 | 2025-01-17 | 北京鼎诚鸿安科技发展有限公司 | 基于多态的电网信息分析校核处理装置与方法 |
| CN120254383A (zh) * | 2025-04-10 | 2025-07-04 | 怀化建南机器厂有限公司 | 一种具备误差自检测的智能电能表 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102027844B1 (ko) * | 2013-09-27 | 2019-10-02 | 한국전력공사 | 설비정보를 이용한 계측기의 측정오차 보정 장치 및 방법 |
| KR101819268B1 (ko) | 2014-03-31 | 2018-01-17 | 엘에스산전 주식회사 | Hvdc 시스템의 절체 방법 |
| KR101529146B1 (ko) * | 2014-05-13 | 2015-06-16 | 엘에스산전 주식회사 | 계기용 변압기의 편차 보상 방법 |
| KR101578291B1 (ko) | 2014-05-13 | 2015-12-16 | 엘에스산전 주식회사 | Hvdc 시스템 |
| CN113702896B (zh) * | 2021-07-13 | 2024-04-19 | 中国电力科学研究院有限公司 | 一种基于电压参考测量直流电能标准表误差的系统及方法 |
| KR102357052B1 (ko) * | 2021-08-19 | 2022-02-08 | 강철수 | 활선 상태에서의 전류 비오차 측정장치와 모니터링 시스템 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11273972A (ja) * | 1998-03-25 | 1999-10-08 | Kansai Electric Power Co Inc:The | 電圧調整装置 |
| JP2008046067A (ja) * | 2006-08-21 | 2008-02-28 | Chugoku Electric Power Co Inc:The | 電流計測における誤差補正方法 |
| KR20100029931A (ko) * | 2008-09-09 | 2010-03-18 | (주)한국아이이디 | 고압 계통의 전압, 전류 측정 및 오차 보정 시스템 및 방법 |
| JP2010068604A (ja) * | 2008-09-09 | 2010-03-25 | Hitachi Ltd | 配電系統状態推定装置、方法及びプログラム |
| JP2011013032A (ja) * | 2009-06-30 | 2011-01-20 | Kagoshima Univ | 電流測定装置 |
| JP2012005277A (ja) * | 2010-06-18 | 2012-01-05 | Hitachi Ltd | 潮流計算機能を備えた無効電力補償装置、およびそのシステムと方法 |
| KR101127760B1 (ko) * | 2011-11-03 | 2012-03-27 | 부흥시스템(주) | 배전선로 자동 개폐기의 계측전압을 보정하기 위한 시험장치, 그 시험장치를 이용한 시험방법 |
-
2012
- 2012-09-20 KR KR1020120104711A patent/KR101307098B1/ko active Active
- 2012-09-21 WO PCT/KR2012/007592 patent/WO2014046319A1/ko not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11273972A (ja) * | 1998-03-25 | 1999-10-08 | Kansai Electric Power Co Inc:The | 電圧調整装置 |
| JP2008046067A (ja) * | 2006-08-21 | 2008-02-28 | Chugoku Electric Power Co Inc:The | 電流計測における誤差補正方法 |
| KR20100029931A (ko) * | 2008-09-09 | 2010-03-18 | (주)한국아이이디 | 고압 계통의 전압, 전류 측정 및 오차 보정 시스템 및 방법 |
| JP2010068604A (ja) * | 2008-09-09 | 2010-03-25 | Hitachi Ltd | 配電系統状態推定装置、方法及びプログラム |
| JP2011013032A (ja) * | 2009-06-30 | 2011-01-20 | Kagoshima Univ | 電流測定装置 |
| JP2012005277A (ja) * | 2010-06-18 | 2012-01-05 | Hitachi Ltd | 潮流計算機能を備えた無効電力補償装置、およびそのシステムと方法 |
| KR101127760B1 (ko) * | 2011-11-03 | 2012-03-27 | 부흥시스템(주) | 배전선로 자동 개폐기의 계측전압을 보정하기 위한 시험장치, 그 시험장치를 이용한 시험방법 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442019A (zh) * | 2021-12-31 | 2022-05-06 | 苏州浪潮智能科技有限公司 | 一种测试工具的测试校正方法、装置及电子设备 |
| CN114442019B (zh) * | 2021-12-31 | 2023-11-14 | 苏州浪潮智能科技有限公司 | 一种测试工具的测试校正方法、装置及电子设备 |
| CN119324576A (zh) * | 2024-12-19 | 2025-01-17 | 北京鼎诚鸿安科技发展有限公司 | 基于多态的电网信息分析校核处理装置与方法 |
| CN120254383A (zh) * | 2025-04-10 | 2025-07-04 | 怀化建南机器厂有限公司 | 一种具备误差自检测的智能电能表 |
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