What exactly are harmonics and how do they appear? "how are harmonics generated? The signal is just "on" or "off", how are there first, third, and fifth harmonics and why do they get weaker?" Although not a satisfactory answer, you could accept the fact that any physically realizable continuous-time signal can be represented as an infinite sum of sinusoids (that's a Fourier series) Thus, any sinusoidal signal doesn't have harmonics, or it
How do I calculate THD? - Electrical Engineering Stack Exchange I want to calculate the total harmonic distortion of the signal using this graph and formula The formula is taken from this page: Calculating harmonic distortion First Question: So my problem is to
Filter design according to harmonics in an inverter According to the Fourier series, when AC waves of different frequencies are added to the fundamental frequency, we can obtain waves such as square and sawtooth When we filter out the harmonics in
power electronics - Electrical Engineering Stack Exchange I'm working on a project involving multiple non-linear electrical loads, and I want to estimate the total THDi (Total Harmonic Distortion of Current) and, if possible, THDv (Total Harmonic Distortion of Voltage) for the group of loads
signal - Harmonic detection using lock-in amplifier - Electrical . . . 0 Can a third harmonic of a signal be detected using a lock-in amplifier under the same parameters fixed for collecting the fundamental or the parameters needs to be adjusted Here by parameters I mean sensitivity , time constant and phase I am using a Mach-zehnder interferometer to intensity modulate my laser beam which is pulsed at 80 Mhz rep
What is the best approach for reducing harmonic distortion? Where are you having issues with Harmonic Distortion in relation to your converter driven machines? Upstream in your power distribution system or after the converter? It sounds as if your 6 pulse converter is some type of VFD Is this a 3 phase 480 Volt system? If this is the case, common practice is to add an inductive coil (also known as a filter or choke coil) before the converter - to keep