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Switched doubly fed machines (DFM) enable the creation of variable speed drives with reduced power electronics requirements compared to shaft power, and with the additional benefit of controllable stator power factor. A transfer switch is a critical component of a switched-DFM drive, permitting reconfiguration of the stator power connections. A solid-state transfer switch not only allows seamless...
Switched doubly-fed machines (DFM) offer unique opportunities for creating drives for wide speed range operation with reduced power converter requirements. Seamless performance of the drive is desirable in these applications across the complete speed range, that is, a smooth transition between operating modes and speed ranges. This paper presents a comparison of two switched-DFM drive topologies based...
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...
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