TY - CONF
TI - A positive and negative sequences detecting method based on an improved PQ theory for power grid synchronization
AU - Boussaid, A.
AU - Maouche, Y.
AU - Nemmour, A. L.
AU - Khezzar, A.
T2 - 2013 8th International Conference on Electrical and Electronics Engineering (ELECO)
AB - This paper proposes a modified PQ theory for detecting the positive and negative components of the utility voltages under faulty grid conditions. Fast and exact detecting of those sequences is important to achieve the operating at unity power factor integration of distributed generations into the main grid and for other uses. A detailed description of the proposed method has been accomplished. A phase lockedloop on synchronous rotating frame (SRF PLL) is commonly used to detect the exact phase angle; nevertheless this solution failed immediately to extract the two sequences under unbalanced and distorted conditions. The FMV filter constitutes a very interesting alternative to obtain the phase angle precisely and instantaneously; in this way, different kind of filters with a narrow bandwidth have been used for the separation of positive and negative components; however the response time is extended and an important phase delay is generated. the calculation of the mean value of the instantaneous power is a way to eliminate the AC component with a time response less than one of half of period. The obtained simulation results have been confirmed experimentally using a Dspace 1104 platform.
C3 - 2013 8th International Conference on Electrical and Electronics Engineering (ELECO)
DA - 2013/11//
PY - 2013
DO - 10.1109/ELECO.2013.6713828
DP - IEEE Xplore
SP - 181
EP - 185
UR - http://ieeexplore.ieee.org/document/6713828/
KW - AC component elimination
KW - Dspace 1104 platform
KW - FMV filter
KW - Phase locked loops
KW - SRF PLL
KW - Synchronization
KW - Time factors
KW - distributed generations
KW - distributed power generation
KW - exact phase angle detection
KW - faulty grid conditions
KW - harmonic analysis
KW - improved PQ theory
KW - instantaneous power mean value calculation
KW - negative sequence detection method
KW - phase locked-loop
KW - positive sequence detection method
KW - power factor
KW - power generation faults
KW - power grid synchronization
KW - power grids
KW - power networks
KW - power quality
KW - power system harmonics
KW - simulation
KW - synchronisation
KW - synchronous rotating frame
KW - unity power factor integration
KW - utility voltages
ER -