Single Phase Power Quality Pt3 – Power Factor Correction



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This is a tutorial on single phase power quality, it covers some theory, analogies and practical demonstrations on the following topics:

* Power factor in linear loads – Real power (Watts), active power, true power, apparent power (VA – Volt Amps), reactive power (VAR- Volt Amps Reactive), phase angle, inductive loads, capacitive loads, leading and lagging power factor.

* Power factor in non-linear loads – harmonics, total harmonic distortion (THD), displacement power factor (DPF), distortion power factor (dPF), true power factor, total power factor.

* Power factor correction – passive, active, dynamic, harmonic filtering, synchronous condensers / capacitors, application of capacitors for power factor correction.

* Power grid stability – Use of VAR (reactive power) to stabilise grid voltage.

* Negative and positive effects of large solar (PV) power generation on the grid.

* Do the power factor correction devices for your home save you money?

* Quick demonstration of some tools to measure power quality:

Siglent SHS 1102 Oscilloscope – https://www.tester.co.uk/siglent-shs1102-handheld-oscilliscope-bandwidth-60-mhz-2-channel-5-7-inch-display

HT Instruments HT2209 – https://www.ht-instruments.com/en/products-ht/ac/dc_trms_current_clamp_meters/ht9022

Fluke 345 – https://en-us.fluke.com/products/power-quality-tools/fluke-345-clamp-meter.html#overview

Fluke 43B – https://www.fluke.com/Fluke/caen/Power-Quality-Tools/Troubleshooting-Power-Meters/Fluke-43B.htm?PID=56080

Power factor calculator – https://www.rapidtables.com/calc/electric/power-factor-calculator.htm

Reactive Power Control in Utility-Scale PV – https://solarprofessional.com/articles/design-installation/reactive-power-control-in-utility-scale-pv

Inverter Reactive Power Compensation – https://www.blueoakenergy.com/blog/inverter-reactive-power-compensation/

Meet Solar’s Imaginary Friend, Reactive Power – https://www.renewableenergyworld.com/rea/blog/post/2014/03/meet-solars-imaginary-friend-reactive-power

Power Factor Correction Scam Review – https://www.nlcpr.com/Deceptions1.php

What are non-linear loads and why are they a concern today?

https://www.mirusinternational.com/downloads/hmt_faq01.pdf

Power factor Wiki – https://en.wikipedia.org/wiki/Power_factor

Synchronous Condenser (sometimes called a synchronous capacitor or synchronous compensator) – https://en.wikipedia.org/wiki/Synchronous_condenser
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Post time: Mar-27-2018
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