Modeling and Synthesis of Harmonic-Free Power Conversion and var Compensation Systems

A general approach to modeling and synthesis of harmonic-free power conversion systems is presented. The desired power conversion is achieved by controlling the transfer ratio of a time-varying network which couples the load to the source. Applying this method, harmonic-free volt-amperes reactive (var) power generation can be achieved by systems which do not include any storage elements. On the other hand this approach is suitable for simple modeling of existing efficient var compensators and power conversion circuits.