Single-Phase Fast Response Power Factor Transducer

Tutakne, D. R.; Suryawanshi, Hiralal Murlidhar; Arora, T. G.; Mishra, Mahesh K.; Tarnekar, S.G.

doi:10.1109/isie.2006.295838

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Equations (3) and (6) show that the magnitudes of instantaneous values of the AC line currents at the instant of voltage peak remain unchanged for the lagging and leading power factor loads. However, the phase angle ϕ is negative for lagging currents and positive for leading currents [12].…”

Section: Principlesmentioning

confidence: 99%

Measurement of active power using fiber bragg grating and a piezo‐electric transducer

Cheng

Chang

Liu

2013

Micro & Optical Tech Letters

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This article develops an optical fiber sensor using fiber Bragg grating (FBG) and a piezo‐electrical transducer (PZT) to measure active power.Mounting an FBG on a PZT bar, a dynamic strain simulator was constructed. The equivalent voltage produced by active power applied to the PZT was converted to the dynamic variation of the FBG Bragg wavelength. The active power was attained by measuring the changing value of the wavelength. Thus, the sensor can be used to measure active power without the use of a traditional power meter. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:682–686, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27394

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Section: Principlesmentioning

confidence: 99%

Measurement of active power using fiber bragg grating and a piezo‐electric transducer

Cheng

Chang

Liu

2013

Micro & Optical Tech Letters

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“…When the load is linear, load current i(t) becomes pure sinusoidal and can be expressed as (10) In this case I 1 and I rms become equal. Consequently, the expression in (9) becomes (11) Note that the expression of (11) is appropriate only for sinusoidal load current conditions.…”

Section: Power Factor Definitionmentioning

confidence: 99%

“…A number of analog electronic circuits for PF measurement are proposed in [6][7][8][9]; however, these systems are incapable of determining lead/lag discrimination of a PF nature. Another approach to measuring PF is reported in [10] which is only developed for sinusoidal cases.…”

Section: Introductionmentioning

confidence: 99%

Design of a Power Factor Measurement System for Nonlinear Load

Shahriar¹,

Chong²

2011

Journal of the Korean Institute of Illuminating and Electrical

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This paper introduces and develops an efficient method for measuring power factor (PF) and its nature under nonlinear load current situations. The method is based on generating a pulse width modulated signal whose width correlates to the value of PF. This signal can then be employed as a feedback signal for controlling PF related power quantities in a system. This method has the advantages of its simple implementation, less computational complexity, and its allowable error of less than 4[%], which is justified by the computer simulation results.

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“…Many schems were proposed to measure the power factor. Many of these schemes took a cycle of an input power line frequency for the measurement [1][2][3][4][5][6][7][8][9], while attempts in [10][11][12][13] took only a half a cycle to record the power factor. An attempt to reduce the elapsed time for measurement to about a quarter a cycle was illustrated in [14].…”

Section: Introductionmentioning

confidence: 99%

A Shortest Data Window Algorithm for Detecting the Power Factor in presence of non-sinusoidal load current

Omran

Al-Khalid

Yaseen

2019

IJECE

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During recent years, nonlinear power electronic equipments introduce harmonic pollution on electric power systems. It makes the traditional power factor meter can not act accurately when it monitors unbalanced and harmonic loads. In this paper, a new algorithm for detecting the power factor in presence of non-sinusoidal load current is proposed. The proposed algorithm detects the true power factor exactly. By uses only two successive sampled data points of the voltage and the current for each displacement power factor value calculation and two sampled data points for each distortion power factor value calculation, the total/true power factor becomes easy to measure using these values directly. The proposed detector implemented using microcontroller as a main part and has been tested for single phase power system. The test results show that it can measure the true power factor of the loads quickly and accurately.

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Single-Phase Fast Response Power Factor Transducer

Cited by 6 publications

References 4 publications

Measurement of active power using fiber bragg grating and a piezo‐electric transducer

Measurement of active power using fiber bragg grating and a piezo‐electric transducer

Design of a Power Factor Measurement System for Nonlinear Load

A Shortest Data Window Algorithm for Detecting the Power Factor in presence of non-sinusoidal load current

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