Search results for "Grid synchronization"

showing 2 items of 2 documents

Effects of post-filtering in grid-synchronization algorithms under grid faults

2018

Abstract The spread of distributed generation systems has reinforced concerns and requirements on grid-tied power converters. The synchronization with the utility voltage vector is a major concern. In the literature, algorithms based on Phase Locked Loops are extensively presented. In spite of adequate performances under ideal and balanced grid conditions, under grid faults great inaccuracies arise. Shortcomings are overcome by advanced algorithms at the expenses of the complexity and computational cost. In this paper, grid synchronization algorithms are addressed. A solution is proposed by introducing a new post-filter stage in a Decoupled Double Synchronous Reference Frame not affecting, …

Ideal (set theory)PLLbusiness.industryComputer science020209 energy020208 electrical & electronic engineeringEnergy Engineering and Power Technology02 engineering and technologySmart gridConvertersGrid synchronizationPower converterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciGridPower (physics)Phase-locked loopDistributed generationSynchronization (computer science)0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringbusinessAlgorithmReference frame
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Overview and performance comparison of grid synchronization algorithms

2014

Distributed power generation units are experiencing an impressive growth. Consequently, the amount of energy injected by non-linear loads as power converters is expected to increase. Stability and quality of the overall grid are heavily affected by performances of grid-side converters. In this paper, an overview of grid-synchronization technique is proposed. The grid-side inverter is implemented in MATLAB/Simulink® environment including current control and grid-synchronization section. Both Synchronous Reference Frame (SRF) and Decoupled Double Synchronous Reference Frame (DDSRF) PLL algorithms are implemented. A performance comparison is carried out under ideal and unbalanced utility condi…

PLLComputer scienceGrid synchronizationSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciConvertersGridPower (physics)Phase-locked loopElectronic engineeringpower converterInvertersmart gridMATLABAlgorithmcomputerEnergy (signal processing)computer.programming_languageReference frame2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion
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