harmonic distortion


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harmonic distortion

[här′män·ik di′stȯr·shən]
(electronics)
Nonlinear distortion in which undesired harmonics of a sinusoidal input signal are generated because of circuit nonlinearity.

harmonic distortion

In communications, unwanted frequencies that are generated as multiples of the original frequency due to irregularities in the transmission line. In audio amplifiers, harmonic distortion comes from non-uniform operation (non-linearity) in the amplifier circuits. See harmonic.
References in periodicals archive ?
This approach aims to increase the speed of convergence and to compensate the harmonic distortions by using DSTATCOM.
When this line is simulated for with harmonic distortion condition in PSCAD/EMTDC, SCs are determined as 6.25 A (for Minor 1 and Minor 2) and 1.49 A (for Minor 3).
This residential area is chosen randomly to investigate the waveform of the harmonic distortion. It also attempts to study the K-factor that caused by typical loads.
The generation and detection of the harmonics in the source side of the power system and the respective steps to mitigate the effects of harmonic distortions are given.
A summary of the main steps for implementing the UDR technique for predicting current and voltage harmonic distortion at the PCC of the EPS is highlighted below.
Based on these plots it was found that according to Simulink the amplitude of the total current at the connection of the system to the load and network is equal to 26.56 A while the total harmonic distortion is equal to 8.16%.
Another factor that influences harmonic distortion in a power system is the number of PVDG units connected to the power system.
In addition, the steady state current, its spectral analysis and its total harmonic distortion are detailed respectively in figure 8 and 9.
In the present voltage quality studies the total harmonic distortion [THD.sub.u] and individual harmonic voltages [U.sub.h] were measured throughout one week periods as the mean values of 10-min time intervals.
The results of the restoration processes were then compared to the original source and clipped samples using waveform cross-correlation, total harmonic distortion, spectrographic, and critical listening analyses to assess the programs' "corrections." The following sections describe these analyses.
The RMS harmonic distortion factor (HDF) as a function of reference voltage and frequency is given by the equation (6) where [F.sub.seq.sup.2] is the RMS stator flux ripple of a particular sequence.
It also removes harmonic distortion, fast electrical impulses, frequency variations and other hard-to-solve power problems not addressed by other UPS types.