KR20080081392A - 보간법을 이용한 선간전압 계측 방법 - Google Patents
보간법을 이용한 선간전압 계측 방법 Download PDFInfo
- Publication number
- KR20080081392A KR20080081392A KR1020070021273A KR20070021273A KR20080081392A KR 20080081392 A KR20080081392 A KR 20080081392A KR 1020070021273 A KR1020070021273 A KR 1020070021273A KR 20070021273 A KR20070021273 A KR 20070021273A KR 20080081392 A KR20080081392 A KR 20080081392A
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- KR
- South Korea
- Prior art keywords
- phase
- analog
- voltage
- digital converter
- interpolation
- Prior art date
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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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- 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
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
-
- 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
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Current Or Voltage (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
Description
Claims (5)
- 전력계통에서 멀티플렉서와 아날로그디지털변환기 및 마이크로프로세서를 이용하여 선간전압을 계측하는 방법에 있어서,아날로그디지털변환기는 멀티플렉서로부터 순차 입력된 각 상에 대한 아날로그 신호를 상별로 번갈아가며 샘플링하여 디지털신호로 변환하는 단계;마이크로프로세서는 아날로그디지털변환기로부터 입력된 각 상의 전압 중 적어도 하나 이상의 특정 상에 대한 n시점의 상 전압과 n+1시점의 상 전압 간의 보간(interpolation)을 취하여 보간값을 획득하는 단계; 및상기 마이크로프로세서는 특정 상에 대한 보간값과 나머지 상에 대한 상 전압을 이용하여 각 상 간의 선간전압을 계산하는 단계;를 구비하는 것을 특징으로 하는 보간법을 이용한 선간전압 계측 방법.
- 청구항 1에 있어서,상기 아날로그디지털변환기는 각 상 간의 아날로그 신호를 샘플링하는 시점이 서로 다른 것을 특징으로 하는 보간법을 이용한 선간전압 계측 방법.
- 청구항 1 또는 청구항 2에 있어서,상기 마이크로프로세서는 아날로그디지털변환기로부터 입력되는 3상 전압 중 우선하여 입력되는 2개의 상에 대한 보간값을 각각 획득하는 것을 특징으로 하는 보간법을 이용한 선간전압 계측 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070021273A KR100860711B1 (ko) | 2007-03-05 | 2007-03-05 | 보간법을 이용한 선간전압 계측 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070021273A KR100860711B1 (ko) | 2007-03-05 | 2007-03-05 | 보간법을 이용한 선간전압 계측 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080081392A true KR20080081392A (ko) | 2008-09-10 |
KR100860711B1 KR100860711B1 (ko) | 2008-09-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070021273A KR100860711B1 (ko) | 2007-03-05 | 2007-03-05 | 보간법을 이용한 선간전압 계측 방법 |
Country Status (1)
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KR (1) | KR100860711B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103117667A (zh) * | 2012-12-26 | 2013-05-22 | 深圳创动科技有限公司 | 一种三相三线制逆变器及其线相电压转换方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220145515A (ko) | 2021-04-22 | 2022-10-31 | 엘에스일렉트릭(주) | 디지털 계전기 및 방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100287917B1 (ko) * | 1999-02-02 | 2001-04-16 | 이종수 | 전력용 계측기의 정격전압 보간방법 |
JP3454186B2 (ja) | 1999-05-14 | 2003-10-06 | 株式会社日立製作所 | 電力変換装置 |
KR20050063433A (ko) * | 2003-12-22 | 2005-06-28 | 엘지전자 주식회사 | 저저항을 이용한 마이크로 프로세서의 소모전력 측정장치 |
KR100770723B1 (ko) * | 2006-03-16 | 2007-10-30 | 삼성전자주식회사 | 평판 표시 장치의 소스 드라이버의 디지털/아날로그변환장치 및 디지털/아날로그 변환방법. |
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2007
- 2007-03-05 KR KR1020070021273A patent/KR100860711B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103117667A (zh) * | 2012-12-26 | 2013-05-22 | 深圳创动科技有限公司 | 一种三相三线制逆变器及其线相电压转换方法 |
CN103117667B (zh) * | 2012-12-26 | 2015-05-27 | 深圳创动科技有限公司 | 一种三相三线制逆变器及其线相电压转换方法 |
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Publication number | Publication date |
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KR100860711B1 (ko) | 2008-09-26 |
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