Buscar
Mostrando ítems 21-30 de 480
3-D Space Vector PWM implementation for Four-Leg Voltage Source Inverter
(2011-12-28)
The Space Vector PWM implementation and operation for a Four-leg Voltage Source Inverter (VSI) is detailed and discussed in this paper. Although less common, four-leg VSIs are a viable solution for situations where neutral ...
Position estimator and simplified current control strategy for brushless-DC motors, using DSP technology
(IEEE, 2003)
This paper describes a different way to sense the phase currents and to estimate DC rotor position of a brushless DC (BLDC) motor. For current control, the current is sensed taking the absolute value of two of the three ...
Multilevel inverter, based on multi-stage connection of three-level converters scaled in power of three
(IEEE, 2002)
A multi-stage inverter using three-state converters is being analyzed for multipurpose applications, such as active power filters, static VAr compensators and machine drives for sinusoidal and trapezoidal current applications. ...
Estudo do PWM espaço vetorial para o inversor de dois-níveis para carga trifásica
(Universidade Federal de Sergipe - Pró-reitoria de Pós-Graduação e Pesquisa - Coordenação de Pesquisa, 2020)
Volterra Models for Digital PWM and Their Inverses
(Institute Of Electrical And Electronics Engineers, 2015-10)
In an all-digital class-D audio amplifier each signal sample is mapped into a pulse using digital pulse-width-modulation (PWM), and this intrinsically generates nonlinear distortion. This article develops discrete-time ...
Evaluation of DC-AC single-phase solid-state transformers
(Institute of Electrical and Electronics Engineers, 2019-11-02)
This work presents an evaluation of three topologies of DC-AC single-phase solid-state transformers, for applications in electric microgrids. The main features of these topologies are galvanic isolation, capability to ...
Micro-inverter for integrated grid-tie PV module using resonant controller
(2012-12-11)
Two-stage isolated converters for photovoltaic (PV) applications commonly employ a high-frequency transformer on the DC-DC side, submitting the DC-AC inverter switches to high voltages and forcing the use of IGBTs instead ...