Search Results - "Valla, M. I."

Comparison among nonlinear excitation control strategies used for damping power system oscillations by Leon, A.E., Solsona, J.A., Valla, M.I.

“…► A description and comparison of nonlinear control strategies for synchronous generators are presented. ► Advantages of using nonlinear controllers are…”
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Optimization with constraints for excitation control in synchronous generators by Leon, A.E., Solsona, J.A., Figueroa, J.L., Valla, M.I.

“…Electric power networks are being modified fast, mainly due to the changes introduced in generation systems and load features. Research studies indicate that…”
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A nonlinear reduced order observer for permanent magnet synchronous motors by Solsona, J., Valla, M.I., Muravchik, C.

“…This paper introduces a nonlinear reduced order observer for speed and rotor position estimation in permanent magnet synchronous motors (PMSMs). The observer…”
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Hybrid Active Filter for Reactive and Harmonics Compensation in a Distribution Network by Corasaniti, V.F., Barbieri, M.B., Arnera, P.L., Valla, M.I.

“…The problem of reactive power and harmonics in the medium voltage level of a power distribution system is considered in this paper. Reconfiguration of the…”
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Hybrid Power Filter to Enhance Power Quality in a Medium-Voltage Distribution Network by Corasaniti, V.F., Barbieri, M.B., Arnera, P.L., Valla, M.I.

“…This paper deals with the problem of reactive power and harmonics in a standard medium-voltage (MV) distribution network. It proposes a simple and inexpensive…”
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Adaptive Observer for Sensorless Control of Stand-Alone Doubly Fed Induction Generator by Forchetti, D.G., GarcIa, G.O., Valla, M.I.

“…A sensorless control strategy for a doubly fed (wound rotor) induction machine working in variable-speed stand-alone power systems without using mechanical…”
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On speed and rotor position estimation in permanent-magnet AC drives by Solsona, J., Valla, M.I., Muravchik, C.

“…This letter deals with rotor position and speed estimation of permanent magnet AC drives. Two reduced-order observers, a linear (AO) and a nonlinear one (NLO),…”
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Algorithm for rotor position and speed estimation in permanent magnet ac motors by Cendoya, M., Solsona, J., Toccaceli, G., Valla, M. I.

“…This paper presents an algorithm for estimating speed and rotor position in permanent magnet synchronous motors (PMSMs). Stator voltage and current…”
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Disturbance torque estimation in a sensorless DC drive by Buja, G.S., Menis, R., Valla, M.I.

“…The estimation of the disturbance torque in a sensorless DC motor drive is carried out by extending the classical observer theory. Three estimation schemes are…”
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A control strategy for stand-alone wound rotor induction machine by Forchetti, D.G., Solsona, J.A., García, G.O., Valla, M.I.

“…A control strategy to regulate the frequency and voltage of a stand-alone wound rotor induction machine is presented. This strategy allows the machine to work…”
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Position and speed estimation of a switched reluctance motor by SOLSONA, J., ETCHECHOURY, M., VALLA, M. I., MURAVCHIK, C.

“…This paper deals with the design of an observer for the estimation of rotor position and velocity for switched reluctance motors (SRMs). We present a reduced…”
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Mechanical sensorless speed control of permanent-magnet AC motors driving an unknown load by De Angelo, C., Bossio, G., Solsona, J., Garcia, G.O., Valla, M.I.

“…A new sensorless scheme for high-performance speed control of permanent-magnet ac motors (PMACMs) driving an unknown load is proposed. This scheme uses an…”
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Field-oriented controlled induction generator with loss minimization by Leidhold, R., Garcia, G., Valla, M.I.

“…In this paper, a strategy to control an induction generator (IG) working with variable speed and load is presented and discussed. An inverter and a…”
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Induction Generator Controller Based on the Instantaneous Reactive Power Theory by Leidhold, R., Garcia, G., Valla, M. I.

“…A novel control strategy for a stand-alone induction generator (IG), working with variable speed and load, is proposed. The IG is simultaneously excited by a…”
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Effects of rotor bar and end-ring faults over the signals of a position estimation strategy for induction motors by Bossio, G.R., De Angelo, C.H., Garcia, G.O., Solsona, J.A., Valla, M.I.

“…The effect of rotor faults, such as broken bars and end-rings, over the signals of a position estimation strategy for induction motor drives is analyzed using…”
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Guest Editorial: Position Sensorless AC Motor Drives by Valla, M. I., Wang, G., Solsona, J. A.

“…The papers in this special section focus on position sensorless AC motor drives. Rotor position and speed information is crucial for highperformance ac machine…”
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A rotor position and speed observer for permanent-magnet motors with nonsinusoidal EMF waveform by De Angelo, C., Bossio, G., Solsona, J., Garcia, G.O., Valla, M.I.

“…A new nonlinear reduced-order observer to estimate the rotor speed and position for permanent-magnet motors, with arbitrary electromotive force (EMF) waveform,…”
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Disturbance and nonlinear Luenberger observers for estimating mechanical variables in permanent magnet synchronous motors under mechanical parameters uncertainties by Solsona, J.A., Valla, M.I.

“…This paper deals with rotor position and speed estimation of permanent-magnet synchronous motors. Two reduced-order observers, a disturbance observer and a…”
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Multilevel Current-Source Inverter With FPGA Control by Aguirre, M. P., Calvino, L., Valla, M. I.

“…In this paper, a multilevel current-source inverter (MCSI) topology is analyzed. The issue of constructing a novel modular single-rating inductor MCSI is…”
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A synchronization technique for static delta-modulated PWM inverters by Christiansen, C.F., Valla, M.I., Rivetta, C.H.

“…A synchronization technique for static delta-modulated PWM inverters is presented. This control strategy removes the frequency modulation inherent in the…”
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