Development of an electronic device with wireless interface for measuring and monitoring residential electrical loads us
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ORIGINAL ARTICLE
Development of an electronic device with wireless interface for measuring and monitoring residential electrical loads using the non-invasive method André Araújo Kuhn Pereira & Raimundo José Andrade Menezes Aydin Jadidi & Pieter De Jong & Antonio Cezar de Castro Lima
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Received: 11 May 2018 / Accepted: 22 July 2020 # Springer Nature B.V. 2020
Abstract The increase in the demand for electricity in the last decades has forced consumers to adopt strong rationing measures. However, these actions, often evidenced in small intuitive ways of reducing consumption, are not enough to improve energy efficiency. The user’s awareness needs to be accompanied by increasingly interactive and autonomous tools that allow them to know the true dimension of the financial impact on the inadequate use of domestic electrical and electronic equipment. In this sense, a wireless electronic device capable of noninvasively acquiring signals from household mains installed in a residence was developed so that the system can identify the connected equipment in the electrical network and how much it is contributing to power consumption. After the measurement by the developed device, your performance was compared with two energy analyzers in the market where the loads were disaggregated and classified with the Pearson’s correlation and using an ANN (artificial neural network). Analysis of the test results revealed that the ANN was more efficient in classifying loads, in comparison with the Pearson’s method, with 91% accuracy of the device proposed in this work.
A. Araújo Kuhn Pereira : R. J. A. Menezes (*) : A. Jadidi : P. De Jong : A. C. de Castro Lima Laboratory of Energy Efficiency, Polytechnic School of the Federal University of Bahia, Aristides Novis Street, First Floor, Federation, Salvador, Bahia, Brazil e-mail: [email protected]
Keywords Energy disaggregation . Electronic circuit . Load monitoring . Non-intrusive appliance load monitoring . Devices interaction
Introduction Since the 1990s, with the initiation of studies on energy efficiency, several authors in the area of electricity management focused on the study of measurement and monitoring of loads. However, at the beginning of these studies, the method used was considered to be very invasive considering the number of devices and wires scattered around the studied residence, for example, in the approaches of (Chen et al. 2005). This was due to the fact that the measurements were made individually, and therefore, each appliance installed in the house received a sensor and each of them was connected by wires to a central data receiver. According to Hart (1992), many problems associated with the invasive method, such as loss of privacy, esthetic impairment, and limitation of operation, led to the adoption of a new approach. In a more futuristic view on the subject, Kolter and Johnson (2011) concluded that the replacement by the nonintrusive load monitoring (NILM) method was inevitable because the methods that were used for those measurements needed to be a
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