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- Rodrigo Padilha Vieira, Cristiane Cauduro Gastaldini, Rodrigo Zelir Azzolin, Hilton AbÃlio Grundling
- IEEE Transactions on Industrial Electronics
- 2014

This paper presents a rotor speed observer for induction-machine drives based on a sliding-mode approach and magnetizing current estimation. The back electromotive force (EMF) is calculated from the stator current and the stator voltage signals. The magnetizing currents are obtained from the back EMF. A theorem which gives the rotor speed estimate in theâ€¦ (More)

- Rodrigo Zelir Azzolin, T. A. Bernardes, Rodrigo Padilha Vieira, Cristiane Cauduro Gastaldini, Hilton AbÃlio Grundling
- IECON 2012 - 38th Annual Conference on IEEEâ€¦
- 2012

Vector control has improved the performance and energy efficiency in SPIM drives. However, high current and torque pulsations are produced by winding asymmetry of SPIM. This paper proposes a decoupling scheme to reduce the current and torque pulsations and improve the performance of vector control. A stator current observer is used to estimate the couplingâ€¦ (More)

- Rodrigo Padilha Vieira, Rodrigo Zelir Azzolin, Cristiane Cauduro Gastaldini, Hilton AbÃlio Grundling
- The XIX International Conference on Electricalâ€¦
- 2010

This paper presents a methodology for parameter identification of a Single-Phase Induction Machine (SPIM) of an air conditioning compressor. From the machine model two classical Recursive Least Square (RLS) algorithms are applied at qd axes based on current measurements with standstill rotor. The identification is achieved with standstill rotor due the factâ€¦ (More)

- Rodrigo Padilha Vieira, Rodrigo Zelir Azzolin, Hilton Abflio Griindling
- 2009 Brazilian Power Electronics Conference
- 2009

This paper presents a methodology to modeling and parameter identification of Single-Phase Induction Motors (SPIM). From the machine model two classical Recursive Least Square (RLS) algorithms are applied at qd axes, based in current measurements with standstill rotor. Thus, the identified parameters can improve the performance of the Field Oriented Controlâ€¦ (More)

- Rodrigo Padilha Vieira, Cristiane Cauduro Gastaldini, Rodrigo Zelir Azzolin, Humberto Pinheiro, Hilton AbÃlio Grundling
- The XIX International Conference on Electricalâ€¦
- 2010

This paper presents a simple PWM approach for modulation of three-leg inverters driving two-phase induction machines. The main contribution of this paper is the development of a simple PWM modulation method to generate symmetrical and asymmetrical voltages suitable to fed two-phase induction machines. It is demonstrated that the amplitudes of line voltagesâ€¦ (More)

- Cristiane Cauduro Gastaldini, Rodrigo Padilha Vieira, Rodrigo Zelir Azzolin, Hilton AbÃlio Grundling
- 2012 XXth International Conference on Electricalâ€¦
- 2012

This paper addresses a novel strategy for speed estimation based on feedback linearization control for three-phase induction motors. A sensorless scheme based on discrete time formulation of the Sliding Mode Observer is proposed and stability analysis through Lyapunov method is presented. Experimental results based on DSP platform (TMS320F2812) demonstrateâ€¦ (More)

- Paulo Jefferson Dias de Oliveira Evald, Jusoan Lang Mor, Rodrigo Zelir Azzolin
- IECON 2016 - 42nd Annual Conference of the IEEEâ€¦
- 2016

This article presents a performance comparison between two state observers in a pole placement control (PPC). The first is a classical full order states observer and the second observer is proposed in this work, which is based on a State Variable Filter (SVF). A inverted pendulum on movable base was the system chosen to accomplish performance comparison ofâ€¦ (More)

- Cristiane Cauduro Gastaldini, Rodrigo Padilha Vieira, Rodrigo Zelir Azzolin, Hilton AbÃlio Grundling
- The XIX International Conference on Electricalâ€¦
- 2010

An adaptive state feedback linearizing control (AFLC) is designed for a fifth order model of a three-phase induction motor which includes both electrical and mechanical dynamics. The control algorithm contains an adaptive scheme of feedback linearization control (FLC) to improve robustness against of model parameters variation of induction motorâ€¦ (More)

- Rodrigo Padilha Vieira, Cristiane Cauduro Gastaldini, Rodrigo Zelir Azzolin, Hilton AbÃlio Grundling
- IECON 2011 - 37th Annual Conference of the IEEEâ€¦
- 2011

This paper presents and analysis a rotor speed estimator for symmetrical and asymmetrical induction machines. The proposed scheme is based on discrete-time formulation of the sliding mode observer. The method is suitable to close-loop sensorless control of induction machines. The stability and parameter convergence of the proposed method are analyzed byâ€¦ (More)

- Rodrigo Zelir Azzolin, Hilton AbÃlio Grundling
- 2009 IEEE International Electric Machines andâ€¦
- 2009

This paper presents a discrete time algorithm able to identify all electrical parameters of three-phase induction motors. This algorithm is based on Robust Model Reference Adaptive Controller (RMRAC) applied to electric machine model. The identification uses only measurements of stator currents with standstill rotor. From the correct parameters it isâ€¦ (More)