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It is proposed a novel fault detection technique applied on indirect matrix converter (IMC) in order to detect open circuit faults in bidirectional switches. An IMC under input power factor control in generation systems based on Microturbine (MT) is considered in this study. The IMC under open-circuited switch failures provides continuous operation, since the performance detriment is not drastic although...
This work proposes a fault detection procedure for Self-Excited Induction Generator (SEIG) in power generation standalone applications. The fault detection methodology proposed is based on digital signal processing techniques applied to the available SEIG electrical signals. In order to get the enough data to perform the analysis, the dynamic model of SEIG was simulated in Matlab/Simulink ® platform...
This paper deals with a microturbine generation scheme based on an indirect matrix converter, to interface a high-speed electric generator and a local load, as an alternative to conventional back-to-back converters. An optimal controller is proposed for performance enhancement and efficiency optimization aiming a unit input power factor. Principles of space vector modulation and switch commutation...
This paper proposes a complete numerical assessment of a high speed stand-alone generation system based on a current controller and a two-stage matrix converter. Due the system model complexity, represented by different time-constant modules, an evaluation procedure is proposed aiming a reliable simulation operation. In order to consider several simulation conditions, the following modules were evaluated:...
This work analyzes the case of an AC-AC matrix converter, as an alternative to back-to-back converter, to interface a high-speed micro-turbine generator to a utility load as a distributed generation unit. It is proposed an evaluation procedure of an input-state feedback linearization control of Two-Stage Matrix Converters, in continuous and discrete time, aiming a unit input power factor. Principals...
This paper describes the use of an AC-AC matrix converter, as an alternative to back-to-back converters, to interface a high-speed micro-turbine generator to a utility load as a distributed generation unit. Principals of spatial modulation and IGBT bidirectional switch commutation in matrix converters are reviewed. The two-stage matrix converter presented is controlled by means of a feedback linearization...
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