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Least power point tracking (LPPT) control for refrigeration systems running with variable-speed compressors.

Author(s) : SILVEIRA A., oliveira M. D. C. de, TROFINO A., HERMES C. J. L.

Type of article: IJR article

Summary

In this communication, a least power point tracking (LPPT) control algorithm is introduced and applied to a refrigeration system for the very first time. The LPPT is an adaptive version of an also novel dual-speed control, which is an on-off control with two non-null speed values: the lower one is chosen to minimize the energy consumption, whereas the higher speed value is used to reject strong disturbances. The LPPT and dual-speed results were compared with other control techniques commonly used in the realm of refrigeration systems, namely on-off (baseline), and proportional-integral. Experimental analyses revealed that the LPPT control drew about 16% less energy than the baseline control.

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Details

  • Original title: Least power point tracking (LPPT) control for refrigeration systems running with variable-speed compressors.
  • Record ID : 30028277
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 125
  • Publication date: 2021/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2021.01.002
  • Document available for consultation in the library of the IIR headquarters only.

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