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Shipboard power system (SPS) can have either ac or dc distribution systems, or a combination of both ac and dc distribution systems. However, the Navy has identified Medium-Voltage DC (MVDC) as a long-term solution for electric power distribution to meet the high power density requirements in future shipboard power systems. Thyristor bridges are a viable front-end converter topology due to its mature...
An universal active power filter controller system is proposed that adapts itself to both harmonic current source type loads as well as harmonic voltage source type loads is presented in this paper. The system level harmonic filtering application issues of a multiple and clustered harmonic producing load site, such as at an industrial load site or at a distribution substation, are addressed. Harmonic...
In this paper, a new current regulator is applied for a 3-level NPC inverter to achieve both current regulation and neutral-point voltage balance. The performance of the proposed current regulator is validated for both sinusoidal current tracking, such as for a 3-level NPC inverter based motor drive application, and also for non-sinusoidal current tracking, such as for active filter application. Performance...
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