The present invention describes methods and apparatus to convert and control power provided to a precipitator. An exemplary embodiment of the present invention provides a precipitator power frequency converter system, which includes an insulated-gate bipolar transistor (“IGBT”) system and a converter control system comprising a microprocessor in communication with the IGBT system. In addition, the power frequency converter system provides a rectifier set in communication with the IGBT system. Furthermore, the input power received by the precipitator power frequency converter system is in a first frequency range of approximately 50 Hz to 60 Hz and the precipitator power frequency converter system can be enabled to provide an output power in a second frequency range between 400 Hz and 1000 Hz.