The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of ADWHM(Advanced Digital Watt-Hour Meter) for Remote Management of Distribution Systems

배전원격관리를 위한 차세대 디지털 적산전력계 개발

  • 고윤석 (남서울대학 전자정보통신공학부) ;
  • 윤상문 (광운대 대학원 제어계측공학과) ;
  • 서성진 (광운대 대학원 제어계측공학과) ;
  • 강태규 (광운대 대학원 제어계측공학과)
  • Published : 2004.06.01
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Abstract

This paper develops an ADWHM(Advanced Digital Watt-Hour Meter) which integrates and implements the voltage management data record function and the load management data record function in the electronic watt-hour meter. ADWHM is developed based on PIC16F874 which is 8bit micro-controller of RISK type for the easy of programing and maintenance, and electronic power signal processing module is located at front of it to reduce the computing load of processor. Also, a 16kbyte EEPROM is used to record the voltage management data and load management data for a week as well as watt-hour data and USART communication mode is used to transfer data from ADWHM to PC. The accuracy of the voltage and unt measuring for ADWHM is verified by identifying the LCD display values of the ADWHM after the voltage signals of id levels from digital function generator is applied to PT(Potential Transformer) and CT(Current Transformer) output under state which it is separated from real power line. On the its basic functions such as watt-hour data recording function, voltage management data recording function and load management data recording function was verified by showing data for three days among the collected data to PC by RS232C communication from ADWHM which was connected to real power lines for a week.

Keywords

References

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