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Majid Mehrasa, Radu Godina, Edris Pouresmaeil, Eduardo M. G. Rodrigues and João P. S. Catalão
In order to reach better results for pulse width modulation (PWM)-based methods, the reference waveforms known as control laws have to be achieved with good accuracy. In this paper, three control laws are created by considering the harmonic components of...
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Jin-Hyuk Park, Hae-Gwang Jeong and Kyo-Beum Lee
This paper proposes an output current ripple reduction algorithm using a proportional-integral (PI) controller for an energy storage system (ESS). In single-phase systems, the DC/AC inverter has a second-order harmonic at twice the grid frequency of a DC...
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Zhimin Zhou, Yawei Sun, Lifen Chen, Dezhi Ning and Sulisz Wojciech
In this paper, a two-dimensional time-domain numerical flume has been established to model and investigate nonlinear interactions between nonlinear surface waves and a submerged inclined thin plate. The model solves the Laplace equation and the fully non...
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Sarat Chandra Mohapatra, Hafizul Islam and C. Guedes Soares
A mathematical model for the problem of wave diffraction by a floating fixed truncated vertical cylinder is formulated based on Boussinesq equations (BEs). Using Bessel functions in the velocity potentials, the mathematical problem is solved for second-o...
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Andreas P. Mayer, Elena A. Mayer, Markus Mayer, Werner Ruile, Vikrant Chauhan, Thomas Forster and Karl C. Wagner
In the framework of electro-elasticity theory and the finite element method (FEM), a model is set up for the computation of quantities in surface acoustic wave (SAW) devices accounting for nonlinear effects. These include second-order and third-order int...
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Zhuo Liu, Tianhao Tang, Azeddine Houari, Mohamed Machmoum and Mohamed Fouad Benkhoris
This paper firstly adopts a fault accommodation structure, a five-phase permanent magnet synchronous generator (PMSG) with trapezoidal back-electromagnetic forces, in order to enhance the fault tolerance of tidal current energy conversion systems. Meanwh...
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Habib Benbouhenni,Zinelaabidine Boudjema,Abdelkader Belaidi
Pág. 17 - 28
In this paper, we propose an advanced control scheme using neural second order sliding mode (NSOSMC) and adaptive neuro-fuzzy inference system space vector modulation (ANFIS-SVM) strategy for a doubly fed induction generator (DFIG) integrated into a wind...
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Kyoung-Pil Kang, Younghoon Cho, Myung-Hyo Ryu and Ju-Won Baek
In three-level neutral-point-clamped (NPC) inverters, the voltage imbalance problem between the upper and lower dc-link capacitors is one of the major concerns. This paper proposed a dc-link capacitor voltage balancing method where a common offset voltag...
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Vyacheslav A. Trofimov, Dmitry M. Kharitonov, Mikhail V. Fedotov, Yongqiang Yang, Di Wang and Zhiheng Tai
Third-harmonic generation (THG) is of interest for its various applications. We propose using the cascaded second-harmonic generation (SHG) to implement the frequency conversion process, which is similar to that occurring in a medium with cubic susceptib...
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Haohao Guo, Tianxiang Xiang, Yancheng Liu, Qiaofen Zhang, Yi Wei and Fengkui Zhang
This paper proposes a new method for compensating current measurement errors in shipboard permanent magnet propulsion motors. The method utilizes cascade decoupling second-order generalized integrators (SOGIs) and adaptive linear neurons (ADALINEs) as th...
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Yuriy Divin
Spectral analysis of terahertz (THz) and sub-THz emission from quantum cascade lasers has been recently demonstrated using conventional YBa2Cu3O7-x bicrystal Josephson junctions made from c-axes thin films. Josephson frequencies of alternative bicrystal ...
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Jongbeom Kim, Hong-Pil Ha, Kyung-Mo Kim and Kyung-Young Jhang
The ultrasonic nonlinearity parameter is used to evaluate the nonlinear elasticity of a material, which is determined from the displacement amplitude of the fundamental and second-order frequencies components in an ultrasonic wave propagating through a m...
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Floris de Wit, Marion Tissier and Ad Reniers
The nonlinear wave shape, expressed by skewness and asymmetry, can be calculated from surface elevation or pressure time series using bispectral analysis. Here, it is shown that the same analysis technique can be used to calculate the bound superharmonic...
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