TY - GEN
T1 - Positive-sequence grid voltage detector for distributed generation systems with no tuning requirements
AU - Robles, Eider
AU - Pou, Josep
AU - Ceballos, Salvador
AU - Zaragoza, Jordi
AU - Gabiola, Igor
AU - Martín, José Luís
PY - 2008
Y1 - 2008
N2 - This paper proposes a three-phase positive sequence detector that does not require any parameter to be adjusted. It operates in open loop and there is not any PI controller that needs to be tuned. The scheme includes the use of the Park transformation and moving average filters. Performance of the moving average filter is mathematically analyzed and represented in a Bode diagram. The analysis allows proper selection of the optimal filter's window width for its application in d-q transformed variables. The proposed detector scheme allows fast detection of the grid voltage positive sequence. The MAF completely eliminates any oscillation multiple of the frequency for what it is designed. Thus, this algorithm is not affected by the presence of imbalances or harmonics in the electrical grid. The proposed positive-sequence detector is verified through simulation and experiment. It shows very good performance even under extreme grid voltage conditions.
AB - This paper proposes a three-phase positive sequence detector that does not require any parameter to be adjusted. It operates in open loop and there is not any PI controller that needs to be tuned. The scheme includes the use of the Park transformation and moving average filters. Performance of the moving average filter is mathematically analyzed and represented in a Bode diagram. The analysis allows proper selection of the optimal filter's window width for its application in d-q transformed variables. The proposed detector scheme allows fast detection of the grid voltage positive sequence. The MAF completely eliminates any oscillation multiple of the frequency for what it is designed. Thus, this algorithm is not affected by the presence of imbalances or harmonics in the electrical grid. The proposed positive-sequence detector is verified through simulation and experiment. It shows very good performance even under extreme grid voltage conditions.
UR - http://www.scopus.com/inward/record.url?scp=57849150104&partnerID=8YFLogxK
U2 - 10.1109/ICECS.2008.4675047
DO - 10.1109/ICECS.2008.4675047
M3 - Conference contribution
AN - SCOPUS:57849150104
SN - 9781424421824
T3 - Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
SP - 1091
EP - 1094
BT - Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
T2 - 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
Y2 - 31 August 2008 through 3 September 2008
ER -