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Event-Triggered Digital Implementation of MPPT for Integration of PV Generators in DC Buses of Microgrids

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Applied Computer Sciences in Engineering (WEA 2018)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 915))

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Abstract

This paper presents an event-triggered approach to optimally implement a Maximum Power Point Tracking (MPPT) algorithm into a Digital Signal Processor (DSP). The proposed method allows improving the amount and distribution of time required for executing control tasks. The used nested loop control architecture has an outer loop of MPPT generating the conductance reference used by an inner loop which regulates the input conductance of a DC-DC converter. This last loop enforces a sliding-mode loss-free-resistor behavior for the power converter by means of a simple hysteresis comparator. Computations required by the MPPT algorithm are synchronously executed by the two possible commutation events produced by the inner loop during a switching period. Then, the acquisition of signals must be activated only at an instant before each one of the switching events, releasing the most of the time to implement other tasks. This last characteristic and the use of a nested loop control architecture facilitate the integration of the other essential control functions for photovoltaic (PV) generators in microgrids. Simulation and experimental results confirm the high potetialities of this implementation approach.

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Acknowledgements

This research is being developed with the support of the Departamento Nacional de Ciencia, Tecnología e Innovación COLCIENCIAS under contract CT 018-2016. The results were obtained with assistance of students of the Research Hotbed on Power Electronic Conversion (SICEP), Grupo D+TEC, Universidad de Ibagué.

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Authors and Affiliations

  1. Universidad de Ibagué, 730001, Ibagué, Colombia

    Oswaldo Lopez-Santos & María Merchán-Riveros

  2. LAAS-CNRS, Univ. Toulouse, Toulouse, France

    Germain Garcia

Authors
  1. Oswaldo Lopez-Santos
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  2. María Merchán-Riveros
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  3. Germain Garcia
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Corresponding author

Correspondence to Oswaldo Lopez-Santos .

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Editors and Affiliations

  1. Department of Industrial Engineering, Universidad Distrital Francisco José de Caldas, Bogotá, Colombia

    Juan Carlos Figueroa-García

  2. Industrial Engineering Department, Univ. Distrital Francisco José de Caldas, Bogotá, Colombia

    Eduyn Ramiro López-Santana

  3. Department of Industrial Engineering, Universidad Distrital Francisco José de Caldas, Bogotá, Colombia

    José Ignacio Rodriguez-Molano

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Lopez-Santos, O., Merchán-Riveros, M., Garcia, G. (2018). Event-Triggered Digital Implementation of MPPT for Integration of PV Generators in DC Buses of Microgrids. In: Figueroa-García, J., López-Santana, E., Rodriguez-Molano, J. (eds) Applied Computer Sciences in Engineering. WEA 2018. Communications in Computer and Information Science, vol 915. Springer, Cham. https://doi.org/10.1007/978-3-030-00350-0_45

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  • DOI: https://doi.org/10.1007/978-3-030-00350-0_45

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-00349-4

  • Online ISBN: 978-3-030-00350-0

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