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Doubly-fed machines (DFM) offer exciting possibilities for reducing power electronics requirements for variable speed drives (VSD). Design options are most versatile when the VSD DFM can be reconfigured "on-the-fly" in different winding and power connections. This paper presents a comparison of two different topologies of switched-DFM drives based on steady-state considerations. Effects...
Doubly-fed machines (DFM) can be used to make variable speed drives (VSD) that not only provide full shaft speed control but also avoid the need for a dc electrical bus capable of providing full mechanical shaft power. This makes the DFM attractive for any VSD application where the primary power source is ac. This paper explores the design and control requirements for the DFM rotor power electronics...
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