Generic PLL-Based Grid-Forming Control

doi:10.1109/TPEL.2021.3106045

Generic PLL-Based Grid-Forming Control

2021-01-01

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DOI：10.1109/TPEL.2021.3106045

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Abstract

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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-which is normally grid following-can be designed so as to, in turn, emulate a generic power controller, thus, becoming grid-forming.

Keywords:

Phase locked loops

Automatic voltage control

Resistance

Emulation

Damping

Transient analysis

Couplings

Grid-connected converters

grid-forming control

phase-locked loops

voltage-source converters

Generic PLL-Based Grid-Forming Control

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