A wind powered turbine with low voltage ride-through capability. An
inverter is connected to the output of a turbine generator. The generator
output is conditioned by the inverter resulting in an output voltage and
current at a frequency and phase angle appropriate for transmission to a
three-phase utility grid. A frequency and phase angle sensor is connected
to the utility grid operative during a fault on the grid. A control
system is connected to the sensor and to the inverter. The control system
output is a current command signal enabling the inverter to put out a
current waveform, which is of the same phase and frequency as detected by
the sensor. The control system synthesizes current waveform templates for
all three-phases based on a sensed voltage on one phase and transmits
currents to all three-phases of the electrical system based on the
synthesized current waveforms.