In this paper, a new technique based on the manipulation of stator current signature for induction machines fault diagnosis is introduced. The goal proposed method to demodulate characteristic frequencies from supply frequency and preserve information its harmonics. can be easily implemented used in experimental systems due low computational complexity. validity proved through theoretical analy...

This study aimed to develop a three-phase permanent-magnet synchronous motor drive system with improvement in current harmonics. Considering the harmonic components induced electromotive force of motor, offline response (EMF) was measured for fast Fourier analysis, main were obtained, and voltage required reduce corresponding direct (d-axis) quadrature (q-axis) axes calculated. In closed-loop c...

Abstract Electro-mechanical flight control actuators have become a viable option as replacement for conventional hydraulic in future more electric aircraft. A rotor angle measurement is generally required field-oriented of the electrical machine and usually obtained from safety-critical resolver. It contributes, however, to rising local hardware complexity with negative impact on space allocati...

The Domain Name System (DNS) performs an essential Internet duty: the translation of host names, which are convenient for humans, into IP addresses, which are used to route packets. To do so, an application on an end-user’s system must contact a DNS resolver to perform these translations. While the user’s system may run a DNS resolver locally, many use an ISP resolver (sometimes called a DNS ca...

Introduction. Wound-rotor induction motors are less common compared squirrel-cage motors. However, they occupy a significant share among electric drives with difficult starting conditions. Their advantage is obtaining high electromagnetic torque at lower values of currents. Problem. Due to the possibility including different devices in rotor circuit, it possible shape characteristics according ...

This paper presents a new nonlinear passivity-based controller for a wound rotor synchronous machine, acting as a motor drive. The control objectives are stated in the dqframe, and the port-controlled Hamiltonian model is also obtained. A power flow analysis allows to state the control goals in terms of reactive power compensation and ohmic losses reduction. From the Hamiltonian structure, the ...