Sheng‐Ming Yang
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View article: Compact optical waveform generator with digital feedback
Compact optical waveform generator with digital feedback Open
A key requirement for quantum technologies based on atoms, ions, and molecules, is the ability to realize precise phase- and amplitude-controlled quantum operations via coherent laser pulses. However, for generating pulses on the sub-micro…
View article: NUMERICAL STUDY ON IMPROVEMENT OF THE COOLING FAN PERFORMANCE FOR AN INDUCTION MOTOR
NUMERICAL STUDY ON IMPROVEMENT OF THE COOLING FAN PERFORMANCE FOR AN INDUCTION MOTOR Open
Increasing motor efficiency is becoming more important as efficiency regulations for induction motors, which account for about 40% of global power consumption, are strengthened. However, research on reducing mechanical losses by improving …
View article: Phase Inductance and Rotor Position Estimation for Sensorless Permanent Magnet Synchronous Machine Drives at Standstill
Phase Inductance and Rotor Position Estimation for Sensorless Permanent Magnet Synchronous Machine Drives at Standstill Open
Sensorless control is a common control method used in variable speed drive applications with permanent magnet synchronous machines (PMSMs). In these drive systems, phase inductance (i.e., ${q}$ - and ${d}$ -axis inductance) is the key para…
View article: Sensorless Control System for a Single-Phase DC-Excited Flux-Switching Machine With Self-Starting Capability
Sensorless Control System for a Single-Phase DC-Excited Flux-Switching Machine With Self-Starting Capability Open
Single-phase dc-excited flux-switching machine (DCFSM) exhibits low manufacturing cost and rugged structure. This type of machine has better efficiency and torque density than single-phase induction machine and universal machine. In additi…
View article: Control System for a Single-Phase DC-Excited Flux-Switching Machine With a Torque Ripple Reduction Scheme
Control System for a Single-Phase DC-Excited Flux-Switching Machine With a Torque Ripple Reduction Scheme Open
Single-phase dc-excited flux-switching machines (DCFSMs) are suitable for operations in harsh environments and cost-sensitive applications due to their rugged structure. However, the practical application of DCFSMs is limited because signi…
View article: Online Current Loop Tuning for Permanent Magnet Synchronous Servo Motor Drives with Deadbeat Current Control
Online Current Loop Tuning for Permanent Magnet Synchronous Servo Motor Drives with Deadbeat Current Control Open
High bandwidths and accurate current controls are essential in high-performance permanent magnet synchronous (PMSM) servo drives. Compared with conventional proportional–integral control, deadbeat current control can considerably enhance t…
View article: Permanent Magnet Synchronous Machines
Permanent Magnet Synchronous Machines Open
Interest in permanent magnet synchronous machines (PMSMs) is continuously increasing worldwide, especially with the increased use of renewable energy and the electrification of transports. This book contains the successful submissions of f…
View article: A Restarting Strategy for Back-EMF-Based Sensorless Permanent Magnet Synchronous Machine Drive
A Restarting Strategy for Back-EMF-Based Sensorless Permanent Magnet Synchronous Machine Drive Open
Safely starting a spinning position sensorless controlled permanent magnet synchronous machine is difficult because the current controller does not include information regarding the motor position and speed for suppressing the back-electro…
View article: Rotor Position Sensorless Control of Wound-Field Flux-Switching Machine Based on High Frequency Square-Wave Voltage Injection
Rotor Position Sensorless Control of Wound-Field Flux-Switching Machine Based on High Frequency Square-Wave Voltage Injection Open
This paper compares three shaft-sensorless control schemes for wound-field flux-switching machines based on a high frequency (HF) square-wave voltage injection technique. An HF model for the machine, with inclusion of the field winding, is…
View article: Robust Initial Position Estimation of Permanent Magnet Machine With Low Saliency Ratio
Robust Initial Position Estimation of Permanent Magnet Machine With Low Saliency Ratio Open
In permanent magnet (PM) machine drives, the initial position is typically estimated based on the machine inductance variation and the flux saturation. The saliency-based method using the voltage signal injection has demonstrated the relia…