1 citations · 2 across the 10 of their papers we have counts for
10 papers
Connected C-Core Hybrid SRMs for EV Applications
Gholamreza Davarpanah, Sajjad Mohammadi
This paper proposes a new class of permanent magnet-assisted three-phase switched reluctance motors (PM-SRMs) designed to achieve significantly higher torque density for electric v…
Analytic Design of Flat-Wire Inductors for High-Current and Compact DC-DC Converters
Sajjad Mohammadi, James L. Kirtley, Alireza Namadmalan
This paper presents analytic study and design considerations of flat wire inductors with distributed gaps for high-power and compact DC-DC Converters. The focus is eddy current los…
A New Switched Reluctance Motor with Embedded Permanent Magnets for Transportation Electrification
Gholamreza Davarpanah, Sajjad Mohammadi
A new three-phase hybrid-excited multi-tooth switched reluctance motor with embedded permanent magnets is proposed, capable of achieving higher torque density for transportation el…
Topology Optimization in Three-Phase C-Core SRMs
Gholamreza Davarpanah, Sajjad Mohammadi, James L. Kirtley
This paper investigates the optimized combination of rotor and stator teeth in a three-phase switched reluctance motor featuring a connected C-core topology to attain a larger wind…
A Novel Radial-Flux IPM Eddy-Current Coupler for Wind Generator Applications
Sajjad Mohammadi, Gholamreza Davarpanah, James L. Kirtley
A novel radial-flux eddy-current coupler with interior permanent magnets (IPM) is proposed, providing higher demagnetization tolerance, making it well-suited for applications with…
Two-Phase Switched Reluctance Motors: Optimal Magnet Placement and Drive System for Torque Density
Gholamreza Davarpanah, Sajjad Mohammadi, James L. Kirtley
This paper focuses on designing new motors with high torque density, which is crucial for applications ranging from electric vehicles to robotics. We propose a double-teeth C-core…
Accurate Analytical Modeling of Small-Size Rotary Transformers for Wound-Rotor Resolvers
Saeed Hajmohammadi, MohammadSadegh KhajueeZadeh, Farid Tootoonchian +1
Rotary transformers are commonly used in wound rotor resolvers to transfer excitation signals to the rotating winding without mechanical contact. In many analyses, the rotary trans…
Modeling and Design Optimization of a Linear Motor with Halbach Array for Semiconductor Manufacturing Technology
Sajjad Mohammadi, Jeffrey H. Lang, James L. Kirtley +1
This paper presents analytical modeling and design of a high-acceleration, low-vibration slotless double-sided linear motor with an arbitrary Halbach array for lithography machines…
An Actuator with Magnetic Restoration, Part II: Drive Circuit and Control Loops
Sajjad Mohammadi, William R. Benner, James L. Kirtley +1
In part II, an op-amp-based drive is proposed and designed. Subsequently, a very accurate model for the drive circuit and the current loop is developed as a simulation platform, wh…
An Actuator with Magnetic Restoration, Part I: Electromechanical Model and Identification
Sajjad Mohammadi, William R. Benner, James L. Kirtley +1
Electromechanical models are crucial in the design and control of motors and actuators. Modeling, identification, drive, and current control loop of a limited-rotation actuator wit…