Sine Wave

Purpose

Generate time-based sine wave with optional bias

Control / Sources

The Sine Wave block generates a sinusoidal output signal with an optional bias according to the equation

\[y = A\cdot\sin(\omega\cdot t + \varphi) + C\quad\quad\quad\quad\omega = 2\pi f\]

If a variable-step solver is used, the solver step size is automatically limited to ensure that a smooth waveform is produced.

Example Model

See the example model “Sine Wave Generator”.
Find it in PLECS under Help > PLECS Documentation > List of Example Models.

Amplitude: The amplitude \(A\) of the sine wave signal.
Bias: The offset \(C\) that is added to the sine wave signal.
Frequency: The frequency of the sine wave in hertz (\(f\)) or radians/second (\(\omega\)), see below.
Phase: The phase \(\varphi\) of the sine wave in rad, per unit \((\mathrm{p.u.})\) or degrees, see below. The parameter value should be in the range \([0, 2\pi]\), \([0, 1]\) or \([0, 360]\) respectively.
Units for frequency and phase: The frequency and phase can be expressed in terms of (rad/s, rad), (Hz, p.u.) or (Hz, degrees). If the phase is expressed in per unit \((\mathrm{p.u.})\), a value of 1 is equivalent to the period length.