Harmonic currents are often the cause of the overloading of capacitors, motors, transformers, and cables. Due to harmonics, processes can be interrupted, which is typically the case in situations with a weak supply, such as electrical installations on board of a ship. This course introduces the characteristics of harmonics and possible harmonic problems. In addition, the course clarifies matters such as the ideal sine wave, possible disturbances of this sine wave, the characteristics of harmonics, the interaction between the distortion in the current and voltage, costs associated with harmonics and this course exemplifies in several case studies the interaction between the distortion in the current and the voltage.
What you will learn
- Harmonics concept and important definitions.
- Definition of subharmonics and interharmonics.
- Direct and indirect costs due to high harmonic magnitudes in any installation.
- Harmonic current sources and characteristics.
- Interaction between voltage and current harmonics. Main parameters involved.
- Harmonic resonance phenomena. Resonance frequency and cause.
- Reactive power (Q) and harmonic (D) power definitions.
- Difference between Power Factor (PF) and Displacement Power Factor (DPF)
- Different mitigation technologies and techniques as possible solutions.
- Solving four detailed cases based on real industry and ship problems.