Control strategy of a power line conditioner for cogeneration plants

The cogeneration system analyzed in this paper consists of a high speed turbine coupled to a synchronous generator, that is connected to the mains by an AC/AC power converter. A novel control strategy is proposed for the power conditioning system to provide not only the active power, but the reactive power as well. In this way, the system can be efficiently used for power factor correction and current harmonics compensation. The theoretical analysis is confirmed by computer simulations carried out by PSpice for various operating conditions.