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In-Loop Filters and Prefilters in Phase-Locked Loop Systems: Equivalent or Different Solutions?

Generally speaking, a phase-locked loop (PLL) is a feedback circuit/algorithm that constantly adjusts its output to match in phase and frequency with a reference signal. In power/energy applications, the basis for developing the vast majority of available PLLs is the synchronous reference frame (SRF)-PLL, which is known to have a limited ability in filtering grid disturbances, particularly harmonics, interharmonics, and grid-voltage imbalance. Therefore, a common trend in designing more advanced PLLs is including additional filters within SRF-PLL control loops or before its input. Currently, the literature is full of contradictory remarks about the advantages/disadvantages of these filtering solutions, which are often collectively referred to as in-loop filters and prefilters. This article aims to take a deeper look at these filtering solutions and contribute to dispelling misconceptions about them.

Ketersediaan

Informasi Detail

Judul Seri

IEEE INDUSTRIAL ELECTRONICS; Vol.16 No.3 September 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 23-35

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

HARMONIC ANALYSIS
SYNCHRONIZATION
MARKET RESEARCH
PHASE LOCKED LOOPS
PULSE WIDTH MODULATION
MATCHED FILTERS
IMPEDANCE MATCHING
LOW-PASS FILTERS
POWER HARMONIC FILTERS
INFORMATION FILTERS

Info Detail Spesifik

DOI: 10.1109/MIE.2021.3121652

Pernyataan Tanggungjawab

Saeed Golestan, Ali Akhavan, Josep M. Guerrero, Abdullah M. Abusorrah, Muhyaddin J.H. Rawa, Juan C. Vasquez

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