Power factor correction for intermittent and fluctuating loads

Attia, I.; Youssef, Karim Hassan; Tantawy, M. A.; Bekheet, M.

doi:10.1109/ptc.1999.826721

Cited by 1 publication

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“…Under normal operating conditions certain electrical loads draw not only active power from the supply (kilowatts kW) but also reactive power (reactive kVA, kVAr). Problems of power quality in industrial plants are growing due to the increasing number of rectifier controlled motors and the overall increase of harmonics and inter harmonics [6]. These loads cause poor power factor in industrial plants.…”

Section: Introductionmentioning

confidence: 99%

Automatic Power Factor Control Equipment using Micro Controller

Jose¹,

Abhinav²,

George³

et al. 2015

IJERT

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The use of various inductive equipment like electric motors, furnaces etc. in the industries adversely affects the power factor of the supply. Due to inductive loads, the apparent power becomes greater than the real power that increases the phase difference between voltage and current. So, the power factor drops below unity and the system becomes less efficient. This project deals with correcting the power factor so that it becomes approximately unity. The available power factor correction equipment are very expensive which prevent their use in households and small scale industries. A power transducer is used to get the power factor of the electric circuit. The collected information is given to a microcontroller which is programmed to connect the required capacitors in parallel across the load so that the power factor becomes approximately unity. Our aim is to make a low cost power factor correction equipment, which reduces the power consumption in common households and industries.

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Section: Introductionmentioning

confidence: 99%