Formulating requirements for a universally applicable power theory as control algorithm in power compensators

Different power theories are examined, with regard to their applicability in controlling dynamic filters for non-active power. Frequency-domain approaches and a range of time-domain approaches are considered, the latter being inherently more suitable for real-time control of dynamic filters. Finally, some detailed attention is devoted to a combination of the approaches by Fryze, Buchholz and Depenbrock. This FBD-approach leads to a general time-domain resolution of power components in a generalized m-wire system that can be used effectively in deriving control algorithms for dynamic filters of non-active power.

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