A Stationary Reference Frame Grid Synchronization System for Three-Phase Grid-Connected Power Converters Under Adverse Grid Conditions

In renewable energy-based generation sources a phase locked loop is one of the most popular synchronization techniques. A rapid and precise grid voltage phase and frequency estimation under a wide spectrum of possible grid disturbances is its main objective. This paper compares popular grid synchronization algorithms on grid voltage anomalies. The compared algorithms are divided in three groups: without filtering, with filtering in synchronous reference frame and with filtering in stationary reference frame. The behaviour of the algorithms is tested in a laboratory, using dSpace 1103 as a platform on which the algorithms are compiled and OMICRON CMC 356 as a programmable grid voltage generator. The benchmarks conducted in this paper include voltage sags, grid voltages harmonics, DC offset and frequency step change. The obtained results show that there are significant differences in tested PLL responses for some networks disturbances.

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Dynamic performances of self-excited induction generator feeding different static loads

Serbian Journal of Electrical Engineering ◽

10.2298/sjee0601063n ◽

2006 ◽

Vol 3 (1) ◽

pp. 63-76 ◽

Cited By ~ 8

Author(s):

Ali Nesba ◽

Rachid Ibtiouen ◽

Omar Touhami

Keyword(s):

Reference Frame ◽

Saturation Effect ◽

Induction Generator ◽

Static Loads ◽

Three Phase ◽

Capacitive Load ◽

Dynamic Performances ◽

Flux Model ◽

Stationary Reference Frame

The paper examines the dynamic performances of a three-phase self excited induction generator (SEIG) during sudden connection of static loads. A dynamic flux model of the SEIG in the ?-? axis stationary reference frame is presented. The main flux saturation effect in the SEIG is accounted for by using an accurate technique. The cases of purely resistive, inductive and capacitive load are amply discussed. Models for all of these three-phase load in the ?-? axis stationary reference frame are also given. The analysis presented is validated experimentally.

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Dual three-phase induction motor drive with digital current control in the stationary reference frame

Power Engineering Journal ◽

10.1049/pe:20060308 ◽

2006 ◽

Vol 20 (3) ◽

pp. 40 ◽

Cited By ~ 9

Author(s):

R. Bojoi

Keyword(s):

Induction Motor ◽

Reference Frame ◽

Current Control ◽

Motor Drive ◽

Induction Motor Drive ◽

Three Phase ◽

Stationary Reference Frame

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Implementation of Grid Synchronization Methods on a Real Time Development System

Acta Universitatis Sapientiae Electrical and Mechanical Engineering ◽

10.2478/auseme-2021-0005 ◽

2021 ◽

Vol 13 (1) ◽

pp. 52-67

Author(s):

Andor-Attila Zsigmond ◽

András Kelemen

Keyword(s):

Real Time ◽

Reference Frame ◽

Phase Locked Loop ◽

Time Development ◽

Point Of View ◽

Development System ◽

Grid Synchronization ◽

Synchronous Reference Frame ◽

Three Phase ◽

Switch Mode

Abstract The paper presents a study regarding the implementation of two representative grid synchronization methods, intended to be used in the control structure of a three phase switch mode voltage rectifier. The methods considered are the Synchronous Reference Frame Phase Locked Loop (SRF PLL) and the Double Synchronous Frame Phase Locked Loop (DSRF PLL), respectively. These synchronization methods have been compared on a real time development system type dSpace 1104 from the point of view of their performance in case of an unbalanced mains voltage system. Finally, the influence of the chosen grid synchronization method on the performance of a synchronous reference frame controlled three-phase switch mode voltage rectifier is studied by simulation, and better results are demonstrated to be provided by the use of the DSRF PLL.

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