Danfoss Drives: Understanding EMC & Common Mode (Frequency Converters)

Dive into the intricacies of Common Mode and Electromagnetic Compatibility (EMC) in variable frequency drives in this educational video from Danfoss Drives.

▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬

00:00 Introduction
00:29 Frequency Converters
01:11 Rectifier
01:40 IGBTs
02:36 Switching Frequency
06:06 Floating Frequency Converter
07:08 Reducing Common Mode Problems
08:09 Earth Fault Warning System
11:15 High Frequency Capacitor Filter

▬ Explore how frequency converters transform the incoming supply frequency to control motor RPM and torque, and the challenges posed by common mode and EMC.

▬ Discover the role of diode rectifiers, IGBTs, and Pulse Width Modulation in generating AC, and how the neutral point's movement affects motor operation.

▬ Learn about the impact of stray capacitance, the benefits of good motors and cables, and solutions like isolating transformers and high-frequency capacitor filters to mitigate common mode issues.

▬ Whether you are dealing with onshore or offshore installations, grasp the measures to protect your supply grid from common mode disturbances.

The frequency converter is a device that provides a simple and effective solution to convert alternating current (AC) into direct current (DC). By using a rotating magnetic field to produce radio waves and interference, the frequency converter can be used to store energy in situations where there is not an abundance of available power. This can create a self-sustaining system and is especially useful in areas where there is no electricity or other sources of power. However, caution should be taken to ensure that a balanced neutral point is used to prevent EMC-causing magnetic fields from forming. Using a frequency converter can be a great way to benefit from energy storage and efficient power conversion.

#EMC #CommonMode #DanfossDrives

▬ About Danfoss Drives 🌐 ▬▬▬▬▬▬▬▬▬▬▬▬
Danfoss Drives, a member of Danfoss Group, is a global leader in AC/DC and DC/DC power conversion, as well as variable speed control for electric motors. We deliver solutions to meet all your connectivity needs while helping you create an electric motor or power conversion system that has higher energy efficiency and sustainability.

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