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Singe-Pole Multiple-Throw Switch

An Elementary Control Cell

Faults: Can and MUST be Handled at SPMT Level

(Catastrophic faults: shorted capacitors and opened inductors.)

Time constants: 1-10 ms

(Determined by outside components, i.e. converter filtering functions.)

Control Variables: Switch Position, Pulse Widths

(Digital amplitude, updated every switching period, i.e. digital & discrete.)

Controlled Variables: Pole Current, Throw Voltages

(Either input sources or state variables; can be sampled and digitized.)

Models: Switching and Average Models Well Defined

(Power conversion function is completely described by SPMT operation.)