| Abstract |
The Slip Power Recovery Generator (SPRG) can be employed as a "Variable Speed, Constant Frequency" Generator in the exploitation of some renewable energies, like the Wind Energy the Sea Wave Energy among others. The use of a thyristor bridge in the Slip Power Converter just allows the control of the active power. The replacement of this thyristor bridge by a GTO converter with phase shift and PWM switching, allows the control of both the active and the reactive power within certain limits. This paper discusses the application of the SPRG on the exploitation of ocean Wave-Energy by water column devices. To obtain good performances, the system must be used in closed loop. The system has two degrees of freedom and therefore active and reactive power control are possible at the same time. For the active power regulation, three different controllers are described and compared. The reactive power regulation is of second priority. Some experimental results are presented. |
