TY - GEN
T1 - A MRAS Observer for Sensorless Operation of Grid-Connected BDFRG Wind Turbines
AU - Agha Kashkooli, M. R.
AU - Jovanovic, Milutin G.
PY - 2020/6
Y1 - 2020/6
N2 - A novel rotor speed and position observer for sensor-less vector control of a brushlesss doubly fed reluctance generator (BDFRG) is put forward in this paper. Implementing such an estimation technique would eliminate the need for a shaft encoder, improving so the reliability and reducing the maintenance costs in wind power applications, off-shore in particular. The proposed model reference adaptive system (MRAS) observer retrieves the rotor speed information by driving the errors between the measured secondary currents and their speed dependent estimates to zero. Unlike the documented MRAS schemes for the BDFRG, the estimated currents are accurately derived from the grid voltage and current measurements, which has ensured a more robust performance and higher observer precision. The realistic simulation studies have showcased the prospective controller stability and insensitivity to the machine parameter mismatches across the whole speed range under variable loading conditions of the BDFRG typical for horizontal-axis wind turbines.
AB - A novel rotor speed and position observer for sensor-less vector control of a brushlesss doubly fed reluctance generator (BDFRG) is put forward in this paper. Implementing such an estimation technique would eliminate the need for a shaft encoder, improving so the reliability and reducing the maintenance costs in wind power applications, off-shore in particular. The proposed model reference adaptive system (MRAS) observer retrieves the rotor speed information by driving the errors between the measured secondary currents and their speed dependent estimates to zero. Unlike the documented MRAS schemes for the BDFRG, the estimated currents are accurately derived from the grid voltage and current measurements, which has ensured a more robust performance and higher observer precision. The realistic simulation studies have showcased the prospective controller stability and insensitivity to the machine parameter mismatches across the whole speed range under variable loading conditions of the BDFRG typical for horizontal-axis wind turbines.
KW - Adaptive Systems
KW - Angular Velocity Control
KW - Brushless Machines
KW - Sensorless Control
KW - Wind Energy Conversion
UR - https://www.scopus.com/pages/publications/85089543298
U2 - 10.1109/ISIE45063.2020.9152461
DO - 10.1109/ISIE45063.2020.9152461
M3 - Conference contribution
AN - SCOPUS:85089543298
T3 - IEEE International Symposium on Industrial Electronics
SP - 1517
EP - 1522
BT - 2020 IEEE 29th International Symposium on Industrial Electronics, ISIE 2020 - Proceedings
PB - IEEE
T2 - 29th IEEE International Symposium on Industrial Electronics, ISIE 2020
Y2 - 17 June 2020 through 19 June 2020
ER -
