31 research outputs found
Fracionamento quĂmico e fĂsico da matĂ©ria orgĂąnica de um argissolo vermelho sob diferentes sistemas de uso
Full text linkEfeito da solução de separação densimétrica na quantidade e qualidade da matéria orgùnica leve e na quantificação do carbono orgùnico da fração pesada
Full text linkModeling changes in organic carbon stocks for distinct soils in southeastern brazil after four eucalyptus rotations using the century model
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Improved Dead-Time Compensation for Sinusoidal PWM Inverters Operating at High Switching Frequencies
No full textOn-line estimation of the stator resistance of induction machines based on zero-sequence model
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Detection and compensation of switch fauts in a three-level inverter
No full textInternational audienceThis paper deals with open and short-circuit switch faults in a three-level inverter feeding a three-phase induction motor. It also investigates the fault compensation via topologies that are able to maintain the system operation for a period of time. Simulated and experimental results verify the feasibility of proposed strategies
