Generic PLL-Based Grid-Forming Control
2021
In grid-forming control, the swing equation of a synchronous machine is emulated by a power controller. Thereby, frequency droop, power-oscillation damping, and/or virtual inertia can be obtained. In this letter it is shown that a phase-locked loop (PLL) - which is normally grid following - can be designed so as to, in turn, emulate a generic power controller, thus, becoming grid forming.
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