Proceedings ArticleDOI
A novel instantaneous power factor measurement method based on wavelet transform
Arghya Sarkar,Samarjit Sengupta +1 more
- pp 955-960
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TLDR
A unique power factor measurement method has been proposed that can measure the instantaneous power factor of a non-sinusoidal single-phase system accurately at every sample instant.Abstract:
Power factor monitoring is an important challenge in deregulated environment to maintain quality in delivered power as well as tariff assessment. In this paper, a unique power factor measurement method has been proposed that can measure the instantaneous power factor of a non-sinusoidal single-phase system accurately at every sample instant. The wavelet transform (WT) has been utilized for multiresolution analysis (MRA) of current waveform. The scheme has been implemented in real time with a Texas Instruments (TI) TMS320VC5416 digital signal processor (DSP) along with data acquisition system card PCI-02. The result has been found to be satisfactory.read more
Citations
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Journal ArticleDOI
Reformulating Three-Phase Power Components Definitions Contained in the IEEE Standard 1459–2000 Using Discrete Wavelet Transform
TL;DR: In this paper, the three-phase power components definitions contained in the IEEE Standard 1459-2000 are reformulated using the discrete wavelet transform (DWT) and thus redefined in the time-frequency domain.
Proceedings ArticleDOI
The most suitable mother wavelet for steady-state power system distorted waveforms
TL;DR: In this paper, the authors presented an approach to select the most suitable wavelet family and the mother wavelet to achieve accurate measurement of steady-state harmonic distortion using the discrete wavelet transform (DWT).
Journal ArticleDOI
A new reactive, distortion and non-active power measurement method for nonstationary waveforms using wavelet packet transform
TL;DR: In this article, a new approach based on the wavelet packet transform (WPT) for defining these power components is developed, which can accurately represent and measure nonstationary waveforms, providing uniform frequency bands while preserving both time and frequency information.
Proceedings ArticleDOI
Monitoring of power factor for induction machines using estimation techniques
TL;DR: In this article, a mathematical method using Kriging to determine the operating power factor for an induction machine is presented, which is effectively implemented for under load detection and compensation for improving the power quality.
Proceedings ArticleDOI
Harmonie elimination and power factor improvement of three-phase rectifier using RNSIC variant
TL;DR: In this article, the authors proposed a rectifier with near sinusoidal currents which is called RNSIC and which functions as power factor compensation in a wide range of load currents.
References
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TL;DR: In this article, the authors propose definitions for power terms in alternating current systems that are practical and effective when voltage and/or currents are distorted or unbalanced, and also suggest definitions for measurable values that may be used to indicate the level of distortion and unbalance.
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The recursive pyramid algorithm for the discrete wavelet transform
TL;DR: The recursive pyramid algorithm is a reformulation of the classical pyramid algorithm for computing the discrete wavelet transform (DWT) using just L(log N/spl minus/1) words of storage, as compared with O(N) words required by the PA.
Proceedings ArticleDOI
Power measurement using the wavelet transform
Weon-Ki Yoon,M.J. Devaney +1 more
TL;DR: In this article, the authors provide the theoretical basis for and demonstrate the practical application of power and rms measurements directly from the wavelet transform data associated with each voltage current element pair.