US Patent 9407133 Active power conditioner

Methods and systems for active power conditioner topologies including semiconductor input and output switches, an inductor, a capacitor in parallel with the inductor, and input and output filter capacitors. The present power conditioners can convert power from an input to an output, can supply or absorb reactive power, and can regulate voltage and current waveforms for improving power factor. Additionally, the present power conditioners can act as a variable frequency drive for regulating voltages and frequencies in power converters. The present power conditioners can also correct harmonic oscillations that can damage power conversion equipment.