In the five-phase induction machine (IM), it is possible to better use electromagnetic circuit than in three-phase IM. This requires of an adequate converter system which will be supplied by machine. The electric drive described, this article, includes current source inverter (CSI). proposed novelty—not presented previously—is control structures for IM, CSI. systems allow independent IM state v...

The difficulty of open-switch fault detection in an open-winding inverter is that the at diagonally opposite position within H-bridge power cell has same characteristics. To solve this problem, paper proposes method based on (OW) five-phase fault-tolerant permanent-magnet (FPFTPM) motor drives. includes three steps: first, drives detected by monitoring component third harmonic residual stationa...

In this work, an electronically tunable large range phase shifter based on a broadband Injection-Locked Third Harmonic SelfOscillating Mixer (IL3HSOM) is designed and analyzed. This multifunctional circuit generates a down-converted Intermediate Frequency (IF) signal and provides a theoretical 540◦ continuous phase shift range. The conversion gain and the bandwidth of the circuit are optimized ...

Active three-phase rectifier systems usually cover a wide field of applications where high total power factor (99%+) and low mains current THDi (typ. <5%) are required. Passive three-phase rectifiers on contrary are characterized as highly efficient and robust whereas their power factor is limited to 0.9...0.95 due to rather high harmonic input current components (THDi up to 48%). This paper an...

In this paper, we report on the sharp peak observed in the third harmonic voltage response generated by a bias sinusoidal current applied to several strips patterned in a YBa2Cu3O7−δ thin film and in two La1−xSrxCuO4 thin films, when the temperature is close to the normal-superconductor transition. The lambda-shaped temperature dependence of the third harmonic signal on the current characterist...

Numerical simulations of third-harmonic and supercontinuum generation for femtosecond pulses propagating in air are presented which, for the first time to the best of our knowledge, do not rely on the decomposition of the total field into slowly-varying fields centered around the fundamental and third-harmonic. The simulation results are interpreted using an effective three-wave mixing approach...

Interaction of the third harmonic magnetic field with the third harmonic current in a five-phase synchronous reluctance motor (SynRM) can produce additional torque. However, it is still not clear about the SynRM power factor and its impact on the associated power converter because of the third harmonic components. Using time-stepping finite-element method, a mathematical model of the SynRM, whi...

We present the first demonstration of frequency conversion by simultaneous second- and third-harmonic generation in a silicon photonic crystal nanocavity using continuous-wave optical excitation. We observe a bright dual wavelength emission in the blue/green (450-525 nm) and red (675-790 nm) visible windows with pump powers as low as few microwatts in the telecom bands, with conversion efficien...

We report a comprehensive numerical study of a type of quasi-phase-matched Cherenkov third harmonic generation in a nonlinear waveguide, and this Cherenkov third harmonic generation consists of a guided-to-guided second harmonic generation cascaded with a guided-to-radiated sum-frequency generation. Following the coupled-mode theory, the temperature-detuning characteristics of third harmonic (T...

An intriguing phenomenon of third-harmonic generation under fiber continuum generation is the emission of an anharmonic signal. One popular interpretation of this effect has developed into a general theory of fiber third-harmonic generation. Here we produce "static" third-harmonic Unes dictated fully by fiber properties independent of pump parameters, in contrast to the signals of all known pha...