Harmonic Filters & Sizing Analysis

Overview

Harmonic filters are extensively used to mitigate harmonic problems. A properly designed harmonic filter can prevent the harmonic current from injecting into the system, or it can provide a low impedance path at the tuned frequency to remove a parallel resonance. The Harmonic Filter editor provides all the practical and popular filter structures for you to choose from.

Harmonic Filters & Sizing Software Key Features

• Harmonic Filter design and sizing of multiple filter types based on IEEE Std. 1531-2020
• Harmonic filter sizing based on power factor correction, minimum cost, or minimum operation objective
• Automatic harmonic filter overloading checking & alert
• Preview filter behavior by plotting existing and newly sized filter impedances vs. the harmonic order

Built-in Harmonic Filter Types

• By-Pass
• By-pass frequency characteristic
• High-Pass Damped
• High-pass with damped frequency characteristic
• High-Pass Undamped
• High-pass with undamped frequency characteristic
• Single-Tuned (Notch)
• Single-tuned frequency point
• 3rd Order Damped
• Special high-pass damped filter where the inductance is replaced with a series LC Circuit to provide zero losses at the fundamental frequency and therefore avoiding parallel resonance
• 3rd Order C-Type
• Special high-pass undamped filter where the inductance is replaced with a series LC Circuit to provide zero losses at the fundamental frequency and therefore avoiding parallel resonance