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Your search keyword '"AHLEM, AYARI"' showing total 4 results
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4 results on '"AHLEM, AYARI"'

2. Measurement of active power, electrical energy, and TRMS voltage and current using the dual slope conversion technique

Author

Amira Haddouk, Ahlem Ayari, Hfaiedh Mechergui, and Khaoula Khlifi

Subjects
Materials science, General Computer Science, business.industry, Electric potential energy, Mühendislik, Electrical engineering, AC power, Dual (category theory), DS-ADC,nonlinear load,harmonics rejection,treatment by PIC,electrical energy, Engineering, Electrical and Electronic Engineering, Current (fluid), business, Voltage
Abstract

We have exploited the dual slope (DS) conversion technique to realize an intelligent system with high resolution that ensures active power measurement and electrical energy consumption. The load power is suited by two Hall effect current and voltage transducers, which are associated upstream with a precision analogue multiplier. A DS analogue-to-digital converter (DS-ADC) performs the conversion by rejecting noise with a conversion time that is multiple frequencies of the ADC's first slope. The digital acquisition is made by a PIC 16F877 using a management algorithm ensuring the control, acquisition, and treatment of information. Results are displayed on a 2-line and 16-column LCD. The developed instrument is programmable, which gives it many advantages, such as speed of execution, measurement reliability, and error correction.

Published
2018

4. REACTIVE POWER MEASUREMENT USING A VIRTUAL SYNCHRONOUS DETECTOR.

Author

AHLEM, AYARI, HADDOUK, AM IRA, and MECHERGUI, HAFIDH

Subjects
REACTIVE power, POWER factor measurement, ELECTRIC power factor controllers, STRUCTURAL design, ELECTRICAL engineering equipment
Abstract

The article discusses the measurement of reactive power through the use of a virtual synchronous detector. Explained is the use of a synchronous detection method in extracting the useful signal in noise as demonstrated in equations. The use of LabVIEW software in building an instrumental platform that serves as a virtual synchronous detector in reactive-power measurement is also pointed out.

Published
2014

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