E
Edson H. Watanabe
Researcher at Federal University of Rio de Janeiro
Publications - 126
Citations - 6231
Edson H. Watanabe is an academic researcher from Federal University of Rio de Janeiro. The author has contributed to research in topics: AC power & Electric power system. The author has an hindex of 31, co-authored 124 publications receiving 5766 citations.
Papers
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Instantaneous power theory and applications to power conditioning
TL;DR: The p-q theory in three-phase, four-wire Shunt Active Filters as discussed by the authors has been applied to power flow control in power electronics equipment and has been shown to be useful in many applications.
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Rotor Voltage Dynamics in the Doubly Fed Induction Generator During Grid Faults
TL;DR: In this paper, a new control strategy for the rotor-side converter (RSC) of wind turbines based on doubly fed induction generators (DFIGs) is proposed to improve its low-voltage ride through capability.
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New concepts of instantaneous active and reactive powers in electrical systems with generic loads
TL;DR: In this paper, the instantaneous power theory was introduced for steady and transient states and for generic voltage and current waveforms, and an example showing how this theory can be used to design and control an active power filter is presented.
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An universal active power line conditioner
Abstract: The power circuit of a general active power line conditioner (APLC) is based on series and shunt power converters that share a single DC link. In the present paper, a generic control concept for these series and shunt converters is proposed. It is based on the instantaneous real and imaginary power theory. In fact, the resulting equipment deals with the custom power and FACTS concepts. This equipment incorporates not only the compensation functions at the fundamental frequency like a unified power flow controller (UPFC), but also provides active harmonic mitigation capabilities. For these reasons, the compensator proposed here is called the universal active power line conditioner (UPLC). Simulation and experimental results are presented to confirm that the new approach has better performance than those obtained by controllers based on traditional concepts of active and reactive power.
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New control algorithms for series and shunt three-phase four-wire active power filters
TL;DR: In this paper, the authors presented the general equations that relate the new concepts of instantaneous active and reactive power theory and the well known theory of symmetrical components for the case of 3-phase 4-wire systems, where zero sequence components and harmonics may be present in both voltages and currents.