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An Embedded Sensor Node for the Surveillance of Power Quality

Author

Listed:
  • José-María Guerrero-Rodríguez

    (Area of Electronics, Engineering School, University of Cádiz, Av. de la Universidad, S/N, 11510 Puerto Real, Spain)

  • Clemente Cobos-Sánchez

    (Area of Electronics, Engineering School, University of Cádiz, Av. de la Universidad, S/N, 11510 Puerto Real, Spain)

  • Juan-José González-de-la-Rosa

    (Area of Electronics, Research Unit PAIDI-TIC-168, Polytechnic School of Algeciras, University of Cádiz, Av. Ramón Puyol, S/N, E-11202 Algeciras, Spain)

  • Diego Sales-Lérida

    (Area of Electronics, Engineering School, University of Cádiz, Av. de la Universidad, S/N, 11510 Puerto Real, Spain)

Abstract

The energy supply of office buildings and smart homes is a key issue in the global energy system. The growing use of microelectronics-based technology achieves new devices for a more comfortable life and wider use of electronic office equipment. On the one hand, these applications incorporate more and more sensitive electronic devices which are potentially affected by any external electrical transient. On the other hand, the existing electrical loads, which generally use electronic power systems (such as different types of battery chargers, ballasts, inverters, switching power supplies, etc.), generate different kinds of transients in their own electrical internal network. Moreover, improvements in the information of the state of the mains alternating current (AC) power line allows risk evaluation of any disturbance caused to permanently connected electronic equipment, such as computers, appliances, home security systems, phones, TVs, etc. For this reason, it is nowadays more important to introduce monitoring solutions into the electrical network to measure the level of power quality so that it can protect itself when necessary. This article describes a small and compact detector using a low-cost microcontroller and a very simple direct acquiring circuit. In addition; it analyzes different methods to implement various power quality (PQ) surveillance algorithms that can be implemented in this proposed minimum hardware platform. Hence; it is possible to achieve cheap and low-power monitoring devices that can become nodes of a wireless sensor network (WSN). The work shows that using a small computational effort; reasonable execution speed; and acceptable reliability; this solution can be used to detect a variety of large disturbance phenomena and spread the respective failure report through a 433 MHz or 2.4 GHz radio transmitter. Therefore, this work can easily be extended to the Internet of Things (IoT) paradigm. Simultaneously, a software application ( PulsAC ) has been developed to monitor the microcontroller’s real-time progress and detection capability. Moreover, this high-level code (C++ language), allows us to test and debug the different utilized algorithms that will be later run by the microcontroller unit. These tests have been performed with real signals introduced by a function generator and superimposed on the true AC sine wave

Suggested Citation

  • José-María Guerrero-Rodríguez & Clemente Cobos-Sánchez & Juan-José González-de-la-Rosa & Diego Sales-Lérida, 2019. "An Embedded Sensor Node for the Surveillance of Power Quality," Energies, MDPI, vol. 12(8), pages 1-20, April.
  • Handle: RePEc:gam:jeners:v:12:y:2019:i:8:p:1561-:d:225668
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    References listed on IDEAS

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    1. Juan-José González-de-la-Rosa & Agustín Agüera-Pérez & José-Carlos Palomares-Salas & Olivia Florencias-Oliveros & José-María Sierra-Fernández, 2018. "A Dual Monitoring Technique to Detect Power Quality Transients Based on the Fourth-Order Spectrogram," Energies, MDPI, vol. 11(3), pages 1-12, February.
    2. Juan José González De la Rosa & José María Sierra-Fernández & José Carlos Palomares-Salas & Agustín Agüera-Pérez & Álvaro Jiménez Montero, 2015. "An Application of Spectral Kurtosis to Separate Hybrid Power Quality Events," Energies, MDPI, vol. 8(9), pages 1-17, September.
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