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Proceedings ArticleDOI

Improved grid synchronization algorithm for DG system using DSRF PLL under grid disturbances

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TLDR
This paper presents a Double Synchronous Reference Frame phase locked loop (PLL) based on synthesis circuit for grid synchronization of distributed generation (DG) system under grid disturbances and demonstrates how the PLLs track the phase angle during some of the major abnormal grid conditions like voltage unbalance, line to ground fault and voltage sag etc.
Abstract
Distributed Generation (DG) System is a small scale electric power generation at or near the user's facility as opposed to the normal mode of centralized power generation. In order to ensure safe and reliable operation of power system based on DS, grid synchronization algorithm plays a very important role. This paper presents a Double Synchronous Reference Frame (DSRF) phase locked loop (PLL) based on synthesis circuit for grid synchronization of distributed generation (DG) system under grid disturbances. Due to flexible in characteristics, DSRF PLL can accurately detect the phase irrespective of the grid conditions. Further, it demonstrates how the PLLs track the phase angle during some of the major abnormal grid conditions like voltage unbalance, line to ground fault and voltage sag etc. The superiority of DSRF PLL over SRF PLL is well illustrated by the simulations results obtained from MATLAB/SIMULINK environment.

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Citations
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Proceedings ArticleDOI

Grid synchronization of DC energy storage using Voltage Source Inverter with ZCD and PLL techniques

TL;DR: In this paper, the authors analyzed single phase grid synchronization of DC energy storage using MATLAB Simulink ® environment, where the considered power conditioning device is a Voltage Source Inverter (VSI), which is controlled using two methods called (i) traditional zero crossing detection (ZCD) technique and (ii) phase detector based Phase Locked Loop (PLL) technique.
Proceedings ArticleDOI

Simulation on the angular velocity and displacement measuring system based on DSRF-PLL

TL;DR: A Resolver-to-Digital Converter decoding arithmetic for detecting the velocity and driving distance of automobiles can extract the angular velocity and displacement accurately and stably, even though the gain and phase errors in sine and cosine output signals.
Dissertation

Grid synchronization algorithm for distributed generation system during grid abnormalities

TL;DR: In this article, the phase-locked loops (PLLs) are used to track the phase angle of the grid voltage or current to synchronize the distributed generation system with the grid.
Dissertation

Fuzzy Based Smart Charging Station for Electric Vehicle Application to Mitigate Peak Power Demand

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TL;DR: In this article, the authors proposed a fuzzy based smart charging station (SCS) for electric vehicle's (EVs) application to mitigate the peak power demand of typic al city.
Proceedings ArticleDOI

Phasor Measurement Unit based Impedance Relay: A Case Study

TL;DR: The study and the results obtained have revealed that the fault protection system with PMU is efficient than the conventional system in terms of accuracy and determination of the fault location.
References
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Journal ArticleDOI

Overview of Control and Grid Synchronization for Distributed Power Generation Systems

TL;DR: An overview of the structures for the DPGS based on fuel cell, photovoltaic, and wind turbines is given and the possibility of compensation for low-order harmonics is discussed.
Journal ArticleDOI

Power electronics as efficient interface in dispersed power generation systems

TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal Article

Power Electronics as Efficient Interface in Dispersed Power Generation Systems

TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal ArticleDOI

Decoupled Double Synchronous Reference Frame PLL for Power Converters Control

TL;DR: In this article, a decoupled double synchronous reference frame phase-locked loop (DDSRF-PLL) was proposed to detect the fundamental-frequency positive-sequence component of the utility voltage under unbalanced and distorted conditions.
Proceedings ArticleDOI

New positive-sequence voltage detector for grid synchronization of power converters under faulty grid conditions

TL;DR: In this article, the authors proposed a new positive-sequence voltage detection system which exhibits a fast, precise, and frequency-adaptive response under faulty grid conditions, which is called DSOGI-PLL.
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