Second-order Generalized Integrators (SOGI) have recently been proposed for use as phase detectors for PLL implementations. These structures are essentially notch filters (band-pass) that can be easily tuned to the grid frequency.
This note introduces the general operating principles of a simple Proportional-Integral PI controller. An example of current control for a boost converter is provided, along with a practical control implementation.
Vector current control is a widespread current control technique for three-phase AC currents, which uses a rotating reference frame, synchronized with the grid voltage (dq-frame)
This note introduces the general operating principles of cascaded control and then details a possible design methodology. Then, an example of cascaded voltage control for a boost converter is provided.
A proportional resonant control can be seen as the implementation of PI controllers within a rotating reference frame (dq), which allows to re-locate the infinite DC gain at desired frequency.
The Field-Oriented Control (FOC) method is a motor control strategy that orients the stator current vector in a rotating reference frame of the machine.
This technical note explains how to implement speed control for an electric motor. First, the note introduces the general operating principles of motor speed control,…
This note presents several modulation techniques to operate a Dual Active Bridge (DAB) converter. First, the topology and the theoretical aspects of the Dual Active…
Some power sources, like solar panels, present power characteristics that strongly depend on the operating conditions. In such cases, Maximum Power Point Tracking (MPPT) is often applied to maximize the extracted power.
Power electronic converters generate non-ideal current and voltage waveforms, which unavoidably include a broad spectrum of undesirable switching harmonics. In most applications, these harmonics must…
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