A recent trend in nuclear power plant upgrades has been the replacement of the motor-generator (MG) sets that drive the reactor circulating pumps with variable-frequency drives (VFD). Siemens ...

A device called a converter ... generator is “fully inverted” meaning that 100% of the generated energy passes through a power electronics system which converts it to grid voltage and frequency.

Rectifier/converter: One of the three ... Sequenced correctly, PWM outputs motor current in a nearly perfect sinusoidal waveform. 6. Carrier frequency: In PWM-based VFDs, the rate at which output ...

NASA Glenn’s thermoacoustic power converter reshapes the ... when the resonant frequency is tuned to match the engine, can replace the linear alternator to great effect. The Chinese generator was ...