Article
Chemistry, Physical
Ye Peng, Youyu Zhang, Zhixiang Liao, Yuan Fang, Bao Yu, Haifeng Gong
Summary: This study proposes a chaotic-pulse-width-modulation (CPWM) electric field for oil demulsification, in which the pulse width has a chaotic change while the duty cycle remains constant. A model of droplet deformation and vibration in oil is established, and the effects of duty cycle and electric field intensity on droplet vibration deformation are analyzed. The results show that the CPWM electric field has a wide frequency range and can induce chaotic characteristics in droplet deformation. The optimal duty cycle for CPWM electric field demulsification is 0.5, and the vibration amplitude of the droplet increases with increasing electric field intensity.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Zhihuang Ruan, Wenxiang Song, Lingyun Zhao, Yunpeng Zhang, Youguang Guo
Summary: This paper proposes a variable switching frequency space vector pulse width modulation technique with the function of torque ripple prediction, which can optimize the high-frequency harmonic current distribution and torque ripple. The mathematical correlation between inverter average voltage and instantaneous voltage under the space vector pulse width modulation is analyzed, and the current ripple in a switching cycle is investigated using the typical seven-segment SVPWM, allowing for the prediction of torque ripple of the induction motor. The switching period is dynamically adjusted according to the magnitude of predicted torque ripple, while maintaining the average switching frequency the same as CSFSVPWM. The effectiveness of the proposed method in suppressing high-frequency current harmonics and torque ripple is fully verified through experiments on a 2.2 kW induction motor drive system, and comprehensive comparison with CSFSVPWM and random PWM modulation is conducted.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2023)
Article
Energy & Fuels
Kibok Lee, Yongsu Han
Summary: This paper presents a simple discontinuous pulse width modulation (DPWM) switching scheme to reduce the switching loss of a single DC-link dual two-level inverter fed an open-end winding (OW) induction motor (IM). The proposed method aims to reduce inverter loss and suppress zero-sequence current (ZSC) in the system. Simulation and experimental results are provided to verify the effectiveness of the proposed DPWM scheme.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2023)
Article
Engineering, Multidisciplinary
Greeshma Nadh, Arun S. Rahul
Summary: This article introduces a family of carrier-based PWM schemes for low-speed operation in three-level inverter fed motor drive. The proposed PWM clamps two phases of each inverter throughout the fundamental cycle in the dual-inverter topology, reducing the voltage switching transition. Four PWM variants are discussed and compared with conventional PWM schemes. The proposed PWM is extended to a classical three-level inverter fed motor drive using a mapping of the gating pulse derived from triangular carrier comparison with synchronous sampling. Both steady-state and dynamic performances of the PWM are validated in different motor drive configurations. It is observed that the proposed PWM scheme provides advantages such as inherent capacitor voltage balance and fault tolerance.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Agricultural Engineering
Ramon Salcedo, Heping Zhu, Hongyoung Jeon, Erdal Ozkan, Zhiming Wei, Emilio Gil
Summary: This study conducted laboratory tests to evaluate the spray characteristics of hollow-cone nozzles controlled by two different PWM solenoid valves with varying duty cycles and operating pressures. The results showed that the spray characteristics were greatly influenced by the operating pressure, nozzle selection, PWM duty cycle, and solenoid valve design.
BIOSYSTEMS ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Jiaxu Zhang, Bingyi Zhang, Guihong Feng
Summary: The fractional slot concentrated winding structure effectively addresses the challenges of low-speed, high-torque permanent magnet machines but also introduces magnetomotive force harmonics. The combination of poles and slots influences the radial force and vibration modes of the PM machines, with vibration and noise increasing significantly as the dominant vibration mode order decreases.
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
ShengDao Zhu, WenXiang Zhao, JingHua Ji, GuoHai Liu, Christopher H. T. Lee
Summary: This paper presents two different designs to reduce electromagnetic vibration in integral-slot surface-mounted permanent-magnet machines. The effects of stator slots on magnetic field modulation and radial force modulation are investigated. Experimental tests are conducted to validate the theoretical analyses.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Computer Science, Information Systems
Khaliqur Rahman, Syed Rahman, Mahajan Sagar Bhaskar, Atif Iqbal, Amith Khandakar, Mohd Tariq, Basem Alamri
Summary: This paper presents the field-oriented control of a five-phase induction motor fed from a three-to-five phase direct matrix converter. The focus is on modulation and control techniques, with successful simulation and experimental verification showing the practicality of the method.
Article
Automation & Control Systems
Zhaojing Wu
Summary: This paper investigates the pulse width modulation (PWM) control for Lagrange systems driven by servo motors in a stochastic environment. The principles of PWM for stochastic nonlinear systems are proven, and a continuous control bounded in probability of the stochastic Lagrange system is designed. A stochastic closed-loop nonlinear programming is modeled in the same form as that in the deterministic case. The effectiveness of the proposed scheme is demonstrated by a simulation of articulated manipulator.
Article
Computer Science, Information Systems
Gojko Joksimovic, Peter Zajec, Alberto Tessarolo, Vanja Ambrozic, Andraz Rihar
Summary: This paper analyzes the influence of the number of rotor bars on the stator current spectral content in a three-phase cage induction motor fed by a pulse-width modulated (PWM) inverter. The study reveals the relationship between rotor bars and space harmonics, as well as methods to minimize the adverse effects of rotor slot harmonics (RSHs) in the stator current spectrum.
Article
Engineering, Electrical & Electronic
Deepak Ronanki, Sheldon S. Williamson
Summary: A new, simple, and generalized approach for submodule capacitor voltage balancing in MMCs using discontinuous PWM modulation is proposed and demonstrated through simulations and experimental verification. The effectiveness of injecting ZSV components into the pulse width modulator to achieve discontinuous modulation is evaluated for different sequences over a wide range of modulation indexes.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Fengjiang Wu, Kaixuan Wang, Suhua Luo
Summary: This article proposes a hybrid three-level current-fed series-resonant isolated bidirectional DC-DC converter, which achieves efficient operation through duty-cycle plus dual phase-shift control, and presents a modulation strategy optimization algorithm.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Safa Haq, Shuvra Prokash Biswas, Md. Kamal Hosain, Md. Ashib Rahman, Md. Rabiul Islam, Rajvikram Madurai Elavarasan, Kashem M. Muttaqi
Summary: This paper proposes a modified PWM scheme to enhance the power quality of solar PV-fed water-pumping systems. The proposed scheme reduces total harmonic distortions, switching losses, conduction losses, and torque ripples by generating symmetrical and balanced gate driving signals.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Automation & Control Systems
Jose A. Riveros, Marco Rivera, Joel Prieto
Summary: The modulation law of two-level five-phase voltage source inverters is modeled with two decoupled subspaces and their reference voltages. A new voltage-time system based on duty cycles for this topology is presented, along with an alternative scheme to space vector modulation with low computational cost. Practical implementation and experimental validation support the theoretical derivations of this new method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Prathap Reddy Bhimireddy, Sivakumar Keerthipati, Atif Iqbal
Summary: This article proposes a multilevel inverter scheme for four-pole, nine-phase induction motor drives, reducing the dc-link voltage requirement and the number of semiconductor devices through effective phase reconfiguring concept. The feasibility of the proposed scheme is validated through experiments and simulations.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Emile Devillers, Jean Le Besnerais, Thierry Lubin, Michel Hecquet, Jean-Philippe Lecointe
IEEE TRANSACTIONS ON MAGNETICS
(2018)
Article
Computer Science, Interdisciplinary Applications
Hailong Wu, Daniel Depernet, Vincent Lanfranchi
MATHEMATICS AND COMPUTERS IN SIMULATION
(2019)
Article
Engineering, Electrical & Electronic
Otmane Lahyaoui, Vincent Lanfranchi, Nicolas Buiron, Jean-Daniel Chazot, Christophe Langlois
IEEE TRANSACTIONS ON MAGNETICS
(2018)
Article
Engineering, Electrical & Electronic
M. A. H. Rasid, Nurul Fatimah Abdullah, Muhamad Imran Mohmad Sairaji, Akhtar Razul Razali, Heerwan Peeie, M. Izhar Ishak, Alejandro Ospina, Vincent Lanfranchi
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Otmane Lahyaoui, Vincent Lanfranchi, Nicolas Buiron, Floran Martin, Ugur Aydin, Anouar Belahcen
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2019)
Article
Acoustics
Paul Gning, Vincent Lanfranchi, Nicolas Dauchez, Kaiss Bouayed
Article
Physics, Multidisciplinary
Patricio La Delfa, Michel Hecquet, Frederic Gillon
Article
Computer Science, Interdisciplinary Applications
Emre Uygun, Michel Hecquet, Abdelmounaim Tounzi, Daniel Depernet, Vincent Lanfranchi, Serge Bruno, Thierry Tollance
Summary: This paper investigates the influence of the shift phase angle on magnetic radial forces and torque ripple in a low power permanent magnet synchronous machine, evaluating it using finite element approach. Experimental measurements were conducted with sensorless field-oriented control.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2021)
Article
Computer Science, Interdisciplinary Applications
Jerome Marault, Abdelmounaim Tounzi, Frederic Gillon, Michel Hecquet
COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING
(2020)
Article
Computer Science, Interdisciplinary Applications
Emre Uygun, Daniel Depernet, Vincent Lanfranchi, Serge Bruno, Thierry Tollance, Michel Hecquet, Abdelmounaim Tounzi
COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING
(2020)
Article
Engineering, Electrical & Electronic
Jerome Marault, Frederic Gillon, Michel Hecquet, Abdelmounaim Tounzi
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2020)
Article
Engineering, Electrical & Electronic
J. Marault, A. Tounzi, F. Gillon, M. Hecquet
Summary: The finite element method is the most accurate approach to study electrical machines, but its use in optimization processes can be unsuitable due to long calculation times. An alternative analytical approach using an equivalent circuit based on bar lumped parameters is proposed in this article for squirrel cage induction machines.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Materials Science, Multidisciplinary
Vincent Martin, Frederic Gillon, Denis Najjar, Abdelkader Benabou, Jean-Francois Witz, Michel Hecquet, Philippe Quaegebeur, Matthieu Meersdam, Delphine Auzene
Summary: This study investigates an additive manufacturing technique using Fe3%Si magnetic materials to build complex geometries. The technique allows for the production of green parts with complex shapes, which are then densified through debinding and sintering steps. The magnetic characterization shows high magnetic induction and relative permeability.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Vincent Martin, Jean-Francois Witz, Frederic Gillon, Denis Najjar, Philippe Quaegebeur, Abdelkader Benabou, Michel Hecquet, Emmanuel Berte, Francois Lesaffre, Matthieu Meersdam, Delphine Auzene
Summary: Currently, additive manufacturing of metallic materials using expensive tools with limited control and modification options is a common practice. To address this issue and make metal parts printing more accessible and suitable for academic research, a mixture of thermoplastic polymer and metal powder is proposed. By utilizing a granular feedstock in the form of pellets and the Fused Granular Fabrication 3D printing technology, a cost-effective solution is implemented by modifying a mid-range printer and adding a compact granulates extruder.
Proceedings Paper
Engineering, Electrical & Electronic
Kaibo Li, Shumei Cui, Alain Bouscayrol, Michel Hecquet
2018 IEEE VEHICLE POWER AND PROPULSION CONFERENCE (VPPC)
(2018)
