Power electronics

After an intense engineering and industry requirements review, Polaris gone with variable frequency drives to control the generator and invert power. Designed for 3 phase applications.

Each VFD includes a generator side inverter and a grid side converter (Active Front End/Power Supply).
Generator begins generating power to the network as soon as the generator begins to spin. Generation begins at a much lower blade speed than equivalent inverter technology.
Full Regenerative Drive with safe shut down for over wind conditions.
The VFD has 95.5% efficiency at full power.
Low current THD (Total Harmonic Distortion) typically 5% or less at full power.
All VFD full Regenerative drives and Power Supply (AFE) provides a .99 power factor.
CANbus and Ethernet communications are available for Control and Communications to Polaris Network.
A power converter will be added to all single phase applications which will allow three phase power to be converted back to single phase power for grid tie in.