Published by Nasiru B. Kadandani, Department of Electrical Engineering, Bayero University, Kano, Nigeria. Email: nbkadandani.ele@buk.edu.ng. Published in: The Proceedings of Second International Conference on Electrical and Electronics Engineering, Clean Energy and Green Computing, Konya, Turkey, 2015. Abstract Grid integration of intermittent renewable energy sources like wind and solar is usually associated with power quality disturbanceContinue reading “Harmonics Mitigation and Power Quality Improvement in Grid Connected Wind Power Plant Using STATCOM”
Category Archives: Power Quality
PQ Analysis: Power Quality Reports
Published by testguy, November 23, 2019. Website: testguy.net Power Quality Reports A power quality meter can plot the voltage and current waveforms as functions of time, this is called an oscillogram. Data can be extracted from the power quality recorder and analyzed to determine the overall condition of the power system using various timeplots and tables. TheContinue reading “PQ Analysis: Power Quality Reports”
PQ Analysis: How Power Quality is Measured
Published by testguy, November 23, 2019. Website: testguy.net How Power Quality is Measured? Several types of instruments are available for power quality measurement, each serving their own unique purpose. Power quality analyzers are the most commonly used tools to observe real-time readings and also collect data at high speeds for downloading to computers for analysis, opposed to a powerContinue reading “PQ Analysis: How Power Quality is Measured”
PQ Analysis: Power Factor, Unbalance and Harmonics
Published by testguy, November 23, 2019. Website: testguy.net Power Factor, Unbalance and Harmonics Electrical loads are often composed of more than just pure resistance, the combination of resistance and reactance in an AC system is called the impedance. Reactance comes in two forms: inductive and capacitive, both of which do not contribute to “useful” work on theContinue reading “PQ Analysis: Power Factor, Unbalance and Harmonics”
PQ Analysis: Flicker, Transients and Noise
Published by testguy, November 23, 2019. Website: testguy.net Flicker, Transients and Noise Repetitive voltage reductions in lighting circuits can be detected by the human eye, a phenomena known as “flicker.” The term flicker refers to a very specific problem related to human perception of light produced by incandescent light bulbs, not necessarily general voltage fluctuations. Some commonContinue reading “PQ Analysis: Flicker, Transients and Noise”
PQ Analysis: Undervoltage, Overvoltage, Sags, Swells
Published by testguy, November 23, 2019. Website: testguy.net Undervoltage, Overvoltage, Sags, Swells The second most simple type occurs when voltage at the load drops below a minimum rated voltage or climbs above a maximum rated voltage for some period of time. Depending on how long these conditions last, they may be referred to as undervoltage or overvoltageContinue reading “PQ Analysis: Undervoltage, Overvoltage, Sags, Swells”
PQ Analysis: Power Interruptions
Published by testguy, November 23, 2019. Website: testguy.net, Power Interruptions The most simple type of power quality problem occurs when power delivered to an electrical load goes away, this is called a “power interruption.” The different types of power interruptions are classified according to their duration. A momentary interruption is a complete loss of voltage on one or moreContinue reading “PQ Analysis: Power Interruptions”
Understanding Current and Voltage Harmonics
Published by L&T Electrical & Automation, Website: lntebg.in Source: https://www.lntebg.in/about-us/blog/understanding-current-voltage-harmonics/ Current and voltage harmonics are often used interchangeably. At most places, only harmonics is quoted and whether the values pertain to current or voltage is not mentioned. The differentiation can be done on the basis of their origin. Understanding Total Harmonic Distortion The current andContinue reading “Understanding Current and Voltage Harmonics”
Power Quality Measurements Near DER and Disturbing Loads
Published by Ir. M. van Lumig, Electrical Power Systems, Analysis and Concepts Laborelec NL Beek-Maastricht Airport, the Netherlands, e-mail: michiel.vanlumig@laborelec.com Ir. S. Bhattacharyya, Electrical Energy Systems Group Technical University Eindhoven Eindhoven, the Netherlands, e-mail: s.bhattacharyya@tue.nl Dr. ir. J.F.G. Cobben, Electrical Energy Systems Group Technical University Eindhoven Eindhoven, the Netherlands Prof.ir. W.L. Kling, Electrical Energy SystemsContinue reading “Power Quality Measurements Near DER and Disturbing Loads”
Power Quality Measurements in All Voltage Levels of the Utilities up to 150 kHz – Is it Possible?
Published by Roland Buerger (MBS AG), Business Development/R & D, MBS AG, Sulzbach-Laufen (Germany), Email: rbuerger@mbs-ag.com Bernhard Grasel (NEO MESSTECHNIK), Sales Manager, NEO Messtechnik, Zoebern (Austria), Email: bernhard.grasel@neo-messtechnik.com A reliable energy supply has meanwhile become an important location factor for many companies. While power failures and voltage fluctuations were among the most important parameters ofContinue reading “Power Quality Measurements in All Voltage Levels of the Utilities up to 150 kHz – Is it Possible?”
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