The third method is the comparative method (CM), which is based on the comparative of standardised sinusoidal waveforms
Before the APF is activated, as shown in Figure 7(b), the experimental supply currents are completely unbalanced, distorted, and phase-displaced due to the biphasic connection of the front-end rectifier of the motor drive and the resistive load connection; however, when the APF is on using, firstly, the Euler predictive technique and then the trapezoidal version, the supply currents become again balanced with virtual sinusoidal waveforms
, such that their THD was improved from an unbalanced 40% to a balanced 23% and 18% for the Euler and trapezoidal methods, respectively, and the power factor from 0.
For that reason, if you reshuffle the sampled sinusoidal data according to the primary phase order, it can be reconstructed to a single cycle sinusoidal waveform
, an operation called coherent waveform reconstruction.
However, in a real case, sinusoidal waveforms
only exists for small excursions of the input and output waveforms.
Both hypotheses of bidirectional apparent motion predict that performance should be improved with the sinusoidal waveform
The summation of two concurrent multiharmonic signals, such as hums that differ in their F0s, results in a complex sinusoidal waveform
with multiple envelope periodicities at difference frequencies (dF) between (1) the F0s of each signal; (2) their higher harmonics; and (3) the F0s and higher harmonics.
They also concluded that a pulse waveform better corresponded to tire results as compared to a sinusoidal waveform
especially in a sidewalk deflection.
The SEN specimens were then subjected to uniaxial cyclic compression loading using a sinusoidal waveform
Most of the number and the value of those brushless traction motors lies in permanent magnet synchronous ones, notably Brushless DC "BLDC", a form with trapezoidal waveform, and Permanent Magnet AC "PMAC", a type with a sinusoidal waveform
It is assumed that the input line voltage is a sinusoidal waveform
given by [V.
In order to ensure the output voltage is sinusoidal waveform
, the value of [eta] should be equal to 1/(2 cos([pi]/5)).
Assuming a sinusoidal waveform
for the air-gap flux density, the average electromagnetic torque t of a double-sided AFPM motor is calculated from: