A Comprehensive Look At Hybrid Harmonic Filters And Their Functioning

Hybrid harmonic filters are often touted as the combination of active and passive harmonic filters. This combination makes them one of the most cutting-edge technologies in the field of harmonic mitigation and power quality solutions. But how does this harmonic filter achieve this level of mitigation? This blog addresses the functioning of both components in detail to attain a deeper understanding of the subject.

Exploring The Main Components Of A Hybrid Harmonic Filter

Passive Filters

The passive part of the hybrid harmonic filter handles the lower-order harmonics faced in the power supply. It essentially provides low impedance for these distortions and takes them out of the main power supply. However, its functioning is limited to only certain fixed harmonic frequencies.

Active Filters

The active part of the hybrid harmonic filter mainly uses Insulated-Gate Bipolar Transistors (IGBTs) and Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs). They are excellent power transistors whose main function is to control the flow of current within a circuit. Therefore, when the active part of the hybrid filter faces harmonics that are not filtered by the passive circuit, it generates a pulse that is 180 degrees out of phase with the incoming harmonics, thereby neutralizing its effect.

Combining The Circuits

The hybrid harmonic filter comes into effect by combining the functioning of the above-mentioned circuits. While the passive element handles the majority of harmonics, the active component fine-tunes dynamic loads, leading to clean, effective power that can be used efficiently.

In this manner, hybrid harmonic filters help improve the power factor of a given system while also being cost-effective, as it is much more compact and economical than passive or active harmonic filters.

Do you want to know if these harmonic filters are suited for your particular application? Reach out to us at ADM Engineering Inc. today, and our experts will help assess your needs and offer the best possible solution. As a premier distributor of harmonic filters and other power quality solutions, we pride ourselves on the quality of our products and our technical expertise. To know more, contact us at 877-236-8337.