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The use of frequency converters in induction motor drive centrifugal pumps allows controlling the flow discharge systems provided by pumping through the rotation of the pump. The method of controlling the flow through the pump rotation, in terms of energy efficiency is much more effective in the reduction of electric power consumption and active power demand of the control method done by adjusting...
The objective of this paper is to analyze the replacement of conventional air conditioner for air conditioner driven by frequency converter in a Consumer Unit (CU) used for public service activities, which carries in addition to increased energy efficiency, positive impact on invoice for electric power of CU. However, when observing the effects of the use of the frequency converter on the electric...
This paper presents a resampling method based on time-domain interpolation with applications in harmonic analysis in the time-varying frequency scenario. The method dynamically determines the resampling moments of a given signal that was originally sampled at a fixed rate. This process is based on real-time frequency tracking (fundamental component) by means of a PLL (Phase-Locked Loop) structure...
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