A Variable Structure System (VSS) formulation and bond graph approach are used to develop a novel scheme for synthesizing reduced order models of switched systems. Switches are physical mechanisms that discontinuously redirect power, and switched systems employ switches for more efficient power conversion and/or to incorporate a control structure. A variety of power converters including electronic converters, hydraulic pumps, and clutched transmissions/differentials employ switches. It is shown how reduced order models can be derived using bond graphs and a VSS formulation to provide insight for optimizing design of switched systems. Experimental results are presented to validate this utility.

Issue Section:
Technical Papers
Keywords:
reduced order systems, bond graphs, variable structure systems, DC-DC power convertors, pumps, hydraulic systems, switches
Topics:
Design, Hydraulic pumps, Pumps, Switches, Variable structure systems, Simulation, String, Valves
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