STUDY ON THE LOW-VOLTAGE RIDE-THROUGH PERFORMANCE OF BRUSHLESS DOUBLY FED RELUCTANCE GENERATOR UNDER SYMMETRICAL VOLTAGE DIPS
Keywords:
Brushless doubly fed reluctance generator (BDFRG), low-voltage ride-through (LVRT), symmetrical voltage dip, voltage recovery, torque pulsationAbstract
This paper presents the low-voltage ride-through (LVRT) performance of brushless doubly fed reluctance
generator (BDFRG) under symmetrical voltage dips and recovery conditions. The BDFRG is found suitable alternative for
generating electrical energy from wind energy. The power (primary) winding of the machine is directly connected to the
three-phase local/distribution grid and control (secondary) winding is integrated to the same electrical power network
through back-to-back (dual) converter. In practice, there is the possibility of sudden dip in the voltage of connected grid and
the voltage recovery starts after some elapsed time. Therefore, the paper focuses on the behavior of BDFRG from voltage dip
to recovery time span. The transient currents in primary winding, momentary torque pulsation and speed rise are the
consequences under the abnormal condition of symmetrical voltage dips and recovery. The ride-through performances of
BDFRG are studied in this paper using MATLAB-SIMULINK software.
