• Title/Summary/Keyword: saving power consumption by appliance-level monitoring

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Development of Home Electrical Power Monitoring System and Device Identification Algorithm (가정용 전력 모니터링 시스템 및 장치식별 알고리즘 개발)

  • Park, Sung-Wook;Seo, Jin-Soo;Wang, Bo-Hyeun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.21 no.4
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    • pp.407-413
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    • 2011
  • This paper presents an electrical power monitoring system for home energy management and an automatic appliance-identification algorithm based on the electricity-usage patterns collected during the monitoring tests. This paper also discusses the results of the field tests of which the proposed system was voluntarily deployed at 13 homes. The proposed monitoring system periodically measures the amount of power consumption of each appliance with a pre-specified time interval and effectively displays the essential information provided by the monitored data which is required users to know in order to save power consumption. Regarding the field tests of the monitoring system, the households responded that the system was useful in saving electricity and especially the electricity-usage patterns per appliances. They also considered that the predicted amount of the monthly power consumption was effective. The proposed appliance-identification algorithm uses 4 patterns: Zero-Crossing Rate(ZC), Variation of On State(VO), Slope of On State(SO) and Duty Cycle(DC), which are applied over the 2 hour interval with 25% of it on state, and it yielded 82.1% of success rate in identifying 5 kinds of appliances: refrigerator, TV, electric rice-cooker, kimchi-refrigerator and washing machine.