Characterizing voltage sags and swells using three-phase voltage ellipse parameters

Author(s):  
M. R. Alam ◽  
K. M. Muttaqi ◽  
A. Bouzerdoum
Author(s):  
Jairo Blanco Solano ◽  
Jorge Luis Jagua ◽  
Johann F. Petit Suarez ◽  
Gabriel Ordonez Plata ◽  
Victor Barrera Nunez

2013 ◽  
Vol 418 ◽  
pp. 269-272
Author(s):  
Rong Hui Liu ◽  
Ai Qang Pan ◽  
Hai Bo Wang ◽  
Xiu Yang

In this paper, the characteristics of AC/DC converter under single-phase voltage sags and three-phase voltage sags are simulated with Matlab emulator. The simulation results show that effects on rectifier equipment under three-phase voltage sags are more serious than those under single-phase voltage sags. The flat wave capacitance plays an important role in voltage sensitivity of sensitive loads. In practice, the capacitance of flat wave capacitor is chosen according to the power supply and load requirements so as to realize the best balance of performance and price.


2015 ◽  
Vol 51 (4) ◽  
pp. 2780-2790 ◽  
Author(s):  
Mollah Rezaul Alam ◽  
K. M. Muttaqi ◽  
Abdesselam Bouzerdoum

2016 ◽  
Vol 856 ◽  
pp. 291-296 ◽  
Author(s):  
Georgios E. Kampitsis ◽  
Anastasis P. Tsoumanis ◽  
Konstantinos C. Gallos ◽  
Stavros A. Papathanassiou ◽  
Stefanos N. Manias

In this paper, the performance of three different phase locked loop (PLL) algorithms is experimentally evaluated in a grid connected photovoltaic inverter. Robust PLL is a key requirement for ensuring system compatibility with existing grid codes. The double second order generalized integrator (DSOGI) and the decoupled double synchronous reference frame (DDSRF) PLL are compared against the conventional synchronous reference frame (SRF) PLL under grid disturbances. All synchronization algorithms are initially simulated in Matlab and subsequently transformed in discrete time for implementation in the digital controller. Grid distortions, such as phase voltage sags, frequency fluctuations and voltage harmonic distortion are emulated via a controllable three phase generator.


2019 ◽  
Vol 139 (11) ◽  
pp. 901-907
Author(s):  
Jumpei Sawada ◽  
Shin-ichi Motegi ◽  
Yoshitaka Nakamura ◽  
Masaki Yamada

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