NDLI: Parameter tuning of the PLL to consider the effect on power system small-signal angular stability

Content Provider	IET Digital Library
Author	Du, Wenjuan Chen, Xiao Wang, Haifeng
Abstract	A phase locked loop (PLL) tracks the phase of the terminal voltage of a grid-connected permanent magnetic synchronous generator (PMSG) for wind power generation. Phase tracking by the PLL is used by the vector control for the grid connection of the PMSG. This study investigates the impact of phase-tracking performance of the PLL on power system small-signal angular stability. Damping torque analysis conducted in this study explains why the impact of the PLL is normally small. The analysis indicates that under the special condition of open-loop modal resonance, however, the effect of the PLL may become significant. It is very likely that the open-loop modal resonance may reduce the power system small-signal angular stability. Hence, in tuning the parameters of the PLL, the open-loop modal resonance should be avoided. In this study, the procedure about the parameter tuning of the PLL to consider the effect of open-loop modal resonance is proposed and demonstrated in an example multi-machine power system integrated with a PMSG. Analysis and conclusions made in this study are evaluated using the example power system.
Starting Page	1
Ending Page	8
Page Count	8
ISSN	17521416
Volume Number	12
e-ISSN	17521424
Issue Number	Issue 1, Jan (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/12/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2016.0835
Journal	IET Renewable Power Generation
Publisher Date	2017-09-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Damping Torque Analysis Demodulator Discriminators And Mixers Grid Connection Grid-connected Permanent Magnetic Synchronous Generator Modulator Multimachine Power System Open-loop Modal Resonance Parameter Tuning Permanent Magnet Generator Phase Locked Loop Phase Tracking PLL PMSG Power System Control Power System Small-signal Angular Stability Power System Stability Synchronous Generator Synchronous Machine Terminal Voltage Torque Vector Control Wind Power Generation Wind Power Plant
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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