Impact of frequency estimation for VSC-based devices with primary frequency control

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Title: Impact of frequency estimation for VSC-based devices with primary frequency control
Authors: Ortega, Alvaro
Milano, Federico
Permanent link: http://hdl.handle.net/10197/10020
Date: 18-Jan-2018
Online since: 2019-04-17T11:57:25Z
Abstract: This paper presents a comparison of the performance of frequency control devices considering different techniques to estimate the frequency deviation signal. We consider three estimation techniques, namely the center of inertia (COI), the frequency divider (FD) formula, and the phase-locked loop (PLL). The first two are based on the measurement of synchronous machine rotor angles and are virtually exact measures, while the latter is based on an electronic device and is affected by noise and numerical errors. The goal of the paper is first to define whether the PLL estimation is closer to the COI or to the FD. Then, the dynamic response of VSC-based wind power plants and energy storage systems providing primary frequency regulation is studied and compared using the three aforementioned signals. A comprehensive set of scenarios based on the WSCC 9-bus test system is presented in the case study.
Funding Details: European Commission
European Commission Horizon 2020
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2017 IEEE
Keywords: Frequency estimationFrequency controlCenter of inertiaPhase-locked loopWind energy conversion systemEnergy storage system
DOI: 10.1109/ISGTEurope.2017.8260199
Language: en
Status of Item: Peer reviewed
Is part of: 2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)
Conference Details: The 7th IEEE International Conference on Innovative Smart Grid Technologies (ISGT Europe 2017), Torino, Italy, 26-29 September 2017
ISBN: 9781538619537
Appears in Collections:Electrical and Electronic Engineering Research Collection

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