yusuke1997/dblp-id-title huggingface dataset:
Improved Dynamic Response Design for Proportional Resonant Control Applied to Three-Phase Grid-Forming Inverter
Parameter estimation scheme for low-speed linear induction motors having different leakage inductances
Fiber Bragg Grating Sensor for Electric Field Measurement in the End Windings of High-Voltage Electric Machines
Comprehensive Power Control Performance Investigations of Resonant Inverter for Induction Metal Surface Hardening
Model Predictive Controller With Reduced Complexity for Grid-Tied Multilevel Inverters
High Power ZVZCS Phase Shift Full Bridge DC-DC Converter With High Current Reset Ability and No Extra Electrical Stress
Sensorless Control for a Switched Reluctance Wind Generator, Based on Current Slopes and Neural Networks
Event Driven Control of Voltage and Current Gradients of Medium Voltage IGBTs
Proportional-Integral Event-Triggered Control of Networked Systems With Unmatched Uncertainties
Accuracy Analysis of Dynamic-Wafer-Handling Robotic System in Semiconductor Manufacturing
Sliding Mode Controller in a Multiloop Framework for a Grid-Connected VSI With LCL Filter
Examination of a Sensorless Rotor-Position-Measurement Method for Switched Reluctance Drive
Energy-Conscious Warm-Up of Li-Ion Cells From Subzero Temperatures
Usage of Connected Structure to Eliminate Blind Area of Piezoresistive Sensor Array
Losses Minimization Control for an Integrated Multidrive Topology Devoted to Hybrid Electric Vehicles
NSGA-II+FEM Based Loss Optimization of Three-Phase Transformer
Analysis, Design, and Experimental Results of Novel Snubberless Bidirectional Naturally Clamped ZCS/ZVS Current-Fed Half-Bridge DC/DC Converter for Fuel Cell Vehicles
Conditions for Consensus of Multi-Agent Systems With Time-Delays and Uncertain Switching Topology
A Single-Phase Multilevel Inverter With Battery Balancing
Design and Implementation of Smart Home Control Systems Based on Wireless Sensor Networks and Power Line Communications
Model-Based Deep Learning for Low-Cost IMU Dead Reckoning of Wheeled Mobile Robot
WPD-PCA-Based Laser Welding Process Monitoring and Defects Diagnosis by Using FNN and SVM
Zero-Current-Transition Bridgeless PFC Without Extra Voltage and Current Stress
Multisensor Fusion-Based Concurrent Environment Mapping and Moving Object Detection for Intelligent Service Robotics
Advanced disturbance observer design for mechanical positioning systems
Fast Model Predictive Control for Redistributive Lithium-Ion Battery Balancing
Practical Terminal Sliding-Mode Control and Its Applications in Servo Systems
Predictive Control of Cascaded H-Bridge Converters Under Unbalanced Power Generation
Three-phase synchronous PWM for flyback converter with power-factor correction using FPGA ASIC design
Solar-Powered Automated Road Surveillance System for Speed Violation Detection
Neuro-fuzzy architecture for CMOS implementation
DSP-Based Implementation of an LQR With Integral Action for a Three-Phase Three-Wire Shunt Active Power Filter
An Isolated Three-Phase AC-AC Converter With Bipolar Output Voltage
Hierarchical Longitudinal Controller for Rear-End Collision Avoidance
A Low Power IPT System With Integrated Magnetics and Hybrid Tuning for Metal Object Detection
A Novel Robotic Skill Learning Approach for Assembly Task With Dynamical System and Broad Learning
A Unified PWM Method for Matrix Converters and Its Carrier-Based Realization Using Dipolar Modulation Technique
Permanent Magnet Synchronous Machine Sizing: Effect on the Energy Efficiency of an Electro-Hydraulic Forklift
Dead-Time and Semiconductor Voltage Drop Compensation for Cascaded H-Bridge Converters
A performance comparison of PWM rectifiers and synchronous link converters
The Separate Clock Drift Matched Filter to Detect Time Synchronization Attacks Toward Global Navigation Satellite Systems
Biosensor Systems in Standard CMOS Processes: Fact or Fiction?
High-Performance Relative Localization Based on Key-Node Seeking Considering Aerial Drags Using Range and Odometry Measurements
Location of Mobile Station With Maneuvers Using an IMM-Based Cubature Kalman Filter
Synchronization Control in the Cable Space for Cable-Driven Parallel Robots
Phase Current Reconstruction Using a Single Current Sensor of Three-Phase AC Motors Fed by SVM-Controlled Direct Matrix Converters
Differential RF Phase Shifter With Harmonic Suppression
Coordinated Distributed MPC for Load Frequency Control of Power System With Wind Farms
Development of Autonomous Car - Part I: Distributed System Architecture and Development Process
A Generalized Interleaved Approach Feasible to Static Synchronous Compensator Applications
Electroadhesion-Based High-Payload Soft Gripper With Mechanically Strengthened Structure
High-Speed Position-Sensorless Drive of Permanent-Magnet Machine Using Discrete-Time EMF Estimation
A Class of Nonlinear Active Disturbance Rejection Loop Filters for Phase-Locked Loop
Ultrahigh Step-Down ZVS Buck Converter With Continuous Output Current
Restoration of ultrasonic NDE images
SPWM-Based Direct Digital Control With Average-Voltage Model and D-Σ Process for Paralleled 3φ3W Grid-Connected Converters to Reduce Circulating Currents
Comparative Evaluation of Three Z-Source/Quasi-Z-Source Indirect Matrix Converters
Global Asymptotic Stability of Modular Multilevel Converters
Advanced PWM and Predictive Control - An Overview
A Modified Demodulation Technique for Single-Phase Grid Voltage Fundamental Parameter Estimation
Wide Pulse Combined With Narrow-Pulse Generator for Food Sterilization
An Adaptive Fixed-Time Cascaded Distributed Control for Bipolar-Type DC Microgrids Considering Time Delays
Efficient Power Splitting and Conversion in Ferrite/Piezoelectric Transformer Magnetoelectric Composites
Task-Based Compliance Control for Bottle Screw Manipulation With a Dual-Arm Robot
Model, Design, and Testing of Field Mill Sensors for Measuring Electric Fields Under High-Voltage Direct-Current Power Lines
An Anti-Degradation Chaotic Map and Its Statistical Robustness Analysis
FPGA-Based Real-Time Wrench Model of Direct Current Driven Magnetic Levitation Actuator
Load Sharing and Wayside Battery Storage for Improving AC Railway Network Performance, With Generic Model for Capacity Estimation, Part 1
Improved Cascaded DC-DC Boost Converter With Multiple DC Source and Reduced Part Count
Voltage-Loop Power-Stage Transfer Functions With MOSFET Delay for Boost PWM Converter Operating in CCM
CMOS MEMS Thermal Flow Sensor With Enhanced Sensitivity for Heating, Ventilation, and Air Conditioning Application
Feasibility Study of Model Predictive Control for Grid-Connected Twisted Buck-Boost Inverter
Efficient Design Optimization of PMSM Drive Systems Using Improved Equivalent-Circuit-Based Loss Minimization Control
Distributed Voltage Restoration and Current Sharing Control in Islanded DC Microgrid Systems Without Continuous Communication
A Generic Multivector Model Predictive Control With Symmetric Pulse Pattern for Hybrid Multilevel Converters
A Generalized Topology Synthesis for the Switched-Capacitor Converter
Design and Implementation of a New Multilevel Inverter Topology
Adaptive Sliding Mode Control for Attitude Stabilization With Actuator Saturation
Direct Instantaneous Ripple Power Predictive Control for Active Ripple Decoupling of Single-Phase Inverter
Application of Piezoelectric-Transformer-Based Resonant Circuits for AC LED Lighting-Driven Systems With Frequency-Tracking Techniques
On the application and design of artificial neural networks for motor fault detection. I
Design and Performance Analysis of a New Variable Leakage Flux Permanent Magnet Starter-Generator for Helicopter Applications
Physical Unclonable Function-Based Key Sharing via Machine Learning for IoT Security
Enhancing the Output Performance of Energy Harvesters Using Hierarchical Auxetic Structure and Optimization Techniques
Hardware realization of Krawtchouk transform using VHDL modeling and FPGAs
Development and Optimization of High-Voltage Power Supply System for Industrial Magnetron
Automated Optimal Design of Input Filters for Direct AC/AC Matrix Converters
Current-Feed Single-Switch Forward Resonant DC Transformer (DCX) With Secondary Diode-Clamping
Integrated-Power-Control-Strategy-Based Electrolytic Capacitor-Less Back-to-Back Converter for Variable Frequency Speed Control System
Comparative Study of Fault-Tolerant Switched-Flux Permanent-Magnet Machines
Design of Networked Secure and Real-Time Control Based on Blockchain Techniques
Through the Soil Long Range Wireless Power Transfer for Agricultural IoT Networks
New Emerging Technologies in Motion Control Systems - Part II
Axial Force and Vibroacoustic Analysis of External-Rotor Axial-Flux Motors
Overview of Control and Grid Synchronization for Distributed Power Generation Systems
Interactive Visual Simulation Modeling for Structural Response Prediction and Damage Detection
Observer-Based Adaptive Output Feedback Control for Miniature Aerial Vehicle
Reconfigurable Cellular Base Station Antenna Consisting of Parasitic Radiators
An Efficient Approach to Correct the Signals and Generate High-Resolution Quadrature Pulses for Magnetic Encoders
An overview of power electronics in electric vehicles
Experimental Comparison of Isolated Bidirectional DC-DC Converters Based on All-Si and All-SiC Power Devices for Next-Generation Power Conversion Application
Real-Time Trajectory and Attitude Coordination Control for Reusable Launch Vehicle in Reentry Phase
Weld Seam Detection, Finding, and Setting of Process Parameters for Varying Weld Gap by the Utilization of Laser and Vision Sensor in Robotic Arc Welding
Analysis, Modeling, and Current Trajectory Control of Magnetization State Manipulation in Variable-Flux Permanent Magnet Machines
Multi-Objective Stochastic MPC-Based System Control Architecture for Plug-In Hybrid Electric Buses
Fuzzy supervisory sliding-mode and neural-network control for robotic manipulators
Parallel Connection of Two Three-Phase Three-Switch Buck-Type Unity-Power-Factor Rectifier Systems With DC-Link Current Balancing
Quasi-Static Modeling and Optimization of Two-Layer PCB Resonators in Wireless Power Transfer Systems for 110-kV Power Grid Online Monitoring Equipment
Solar Energy-Harvesting Buck-Boost Converter With Battery-Charging and Battery-Assisted Modes
Current Prediction Based Zero Sequence Current Suppression Strategy for the Semicontrolled Open-Winding PMSM Generation System With a Common DC Bus
Research on Adhesive Quality Control Based on Piezoelectric Dispensing Valve
Fault-Tolerant Asymmetrical Multilevel Inverter With Preserved Output Power Under Post-Fault Operation
Design of Alarm Trippoints for Univariate Analog Process Variables Based on Alarm Probability Plots
Transient Process Shaping Flight Control for Aerial Manipulator Systems With Predefined Damping and Stiffness Behavior
Cross-Regulation Generation Principle in Nonideal Single-Inductor Double-Output Boost Converter With Voltage Mode Control
Multipoint Contact Detection for Rigid-Soft Finger Without Tactile Sensor, Using Domain Adaption Combined Network
Decentralized Control of Voltage Source Converters in Microgrids Based on the Application of Instantaneous Power Theory
Reliable Fuzzy Tracking Control of Near-Space Hypersonic Vehicle Using Aperiodic Measurement Information
A Common Ground Switched-Quasi-Z-Source Bidirectional DC-DC Converter With Wide-Voltage-Gain Range for EVs With Hybrid Energy Sources
Measurements of a fabricated micro mirror using a lateral-effect position-sensitive photodiode
Nonlinear Terminal-Free MPC on Multitype Bend Tracking With Discontinuous Reference Paths for Autonomous Vehicles
Underwater Robot Self-Localization Method Using Tightly Coupled Events, Images, Inertial, and Acoustic Fusion
Digital Synchronous Rectifier Control Using Extended Harmonics Impedance Model for High-Frequency GaN-Based LLC Converters
Generalized Duty-Ratio-Based Pulsewidth Modulation Technique for a Three-to- k Phase Matrix Converter
Different Rotor Segmented Approaches for Electromagnetic Vibration and Acoustic Noise Mitigation in Permanent Magnet Drive Motor: A Comparative Study
Nonlinear Modeling and Harmonic Analysis of Magnetic Resonant WPT System Based on Equivalent Small Parameter Method
UDE-Based Controller Equipped with a Multi-Band-Stop Filter to Improve the Voltage Quality of Inverters
Hybrid Switched-Capacitor/Switched-Quasi-Z-Source Bidirectional DC-DC Converter With a Wide Voltage Gain Range for Hybrid Energy Sources EVs
Joint Gaze Correction and Face Beautification for Conference Video Using Dual Sparsity Prior
Simplified Pre-Analysis of Fault Severity for Interturn Short-Circuit Faults in Fault-Tolerant Permanent Magnet Machines
A Multicarrier-PWM Scheme Along With a Reconfigurable Buck Converter Imitating Multiple Times Higher Switching Frequency
Topology Study of Photovoltaic Interface for Maximum Power Point Tracking
A Multisensor Indoor Localization System for Biped Robots Operating in Industrial Environments
Ultrastable and Low-Noise Self-Compensation Method for Circuit Thermal Drift of Eddy Current Sensors Based on Analog Multiplier
Dynamic Circuit-Based Unified Power Regulation for Hybrid AC/DC/DS Microgrids: A Comprehensive Approach to Static and Transient Control
General Torque Enhancement Approach for a Nine-Phase Surface PMSM With Built-In Fault Tolerance
Evaluation of Combined Reference Frame Transformation for Interturn Fault Detection in Permanent-Magnet Multiphase Machines
Fault-Tolerant Reconfiguration Topology and Control Strategy for Symmetric Open-Winding Multiphase Machines
An Efficient and Fast Li-Ion Battery Charging System Using Energy Harvesting or Conventional Sources
Development and Analysis of a High Thrust Force Direct-Drive Linear Actuator
Insights of Top-k Query in Duty-Cycled Wireless Sensor Networks
A Dynamic Multilayer Winding Thermal Model for Electrical Machines With Concentrated Windings
Modulated Model Predictive Control for a Z-Source-Based Permanent Magnet Synchronous Motor Drive System
A Novel Compact Self-Packaged SPDT Switchable BPFs Based on SISL Platform
Efficient Time-to-Digital Converters in 20 nm FPGAs With Wave Union Methods
Analytical Modeling of Misalignment in Axial Flux Permanent Magnet Machine
An Improved Calculation Method of Coil Offset on the Large-Caliber Magnetic Field Immunity Testing System for ITER
Inverter-Data-Driven Second-Level Power Forecasting for Photovoltaic Power Plant
Enhanced Unsupervised Change Detector for Industrial Surveillance Systems
A Family of Zero-Voltage-Transition Bridgeless Power-Factor-Correction Circuits With a Zero-Current-Switching Auxiliary Switch
Self-Adjusting Domain Adversarial Transfer Learning Algorithm for Power Transformer Lifetime Prediction
Innovative Contactless Energy Transfer Accessory for Rotary Ultrasonic Machining and Its Circuit Compensation Based on Coil Turns
A Battery Capacity Estimation Framework Combining Hybrid Deep Neural Network and Regional Capacity Calculation Based on Real-World Operating Data
Deep Deterministic Policy Gradient-DRL Enabled Multiphysics-Constrained Fast Charging of Lithium-Ion Battery
Radial-Basis-Function-Based Neural Network for Harmonic Detection
LVRT Capability Enhancement of DFIG With Switch-Type Fault Current Limiter
An Improved One-Cycle Control Algorithm for a Five-Phase Six-Leg Switching Power Amplifier in Active Magnetic Bearings
Synthesis and Analysis of Double-Input Single-Output DC/DC Converters
PWM regenerative rectifiers: state of the art
Series-Winding Topology Converter for Active Magnetic Bearing Drive
Voltage Support Control Strategies for Static Synchronous Compensators Under Unbalanced Voltage Sags
A Bioinspired Filtered Backstepping Tracking Control of 7000-m Manned Submarine Vehicle
Dynamic Control of Region of Attraction Using Variable Inductor for Stabilizing DC Microgrids With Constant Power Loads
An Optimal Structure for High Step-Up Nonisolated DC-DC Converters With Soft-Switching Capability and Zero Input Current Ripple
Five-Level Diode-Clamped Inverter With Three-Level Boost Converter
A Novel Lightning Overvoltage Protection Scheme Using Magnetic Rings for Transmission Line Systems
Design of Estimator-Based Sliding-Mode Output-Feedback Controllers for Discrete-Time Systems
Sine-Transform-Based Chaotic System With FPGA Implementation
A biprocessor-oriented vision-based target tracking system
Efficient MSPSO Sampling for Object Detection and 6-D Pose Estimation in 3-D Scenes
An Ultrasonic Synthetic Jet Piezo Pump for Air Delivery
Self-Optimization Control for Alkaline Water Electrolyzers Considering Electrolyzer Temperature Variations
Vibration Characteristics and Vibration Mitigation Analysis of End Cap PM Excitation Homopolar Inductor Machine
High-Order Frequency-Locked Loop: General Modeling and Design
DC-Link Harmonics of Three-Phase Voltage-Source Converters Influenced by the Pulsewidth-Modulation Strategy - An Analysis
Large signal analysis of switching regulators employing adaptive gain current injected control
A Self-Tuning Regulator for the High-Precision Position Control of a Linear Switched Reluctance Motor
Evaluation of modulation schemes for three-phase to three-phase matrix converters
A Module-Integrated Isolated Solar Microinverter
An HIL-Based Reconfigurable Platform for Design, Implementation, and Verification of Electrical System Digital Controllers
Analysis and Design of a Simultaneous Wireless Power and Data Transfer System Featuring High Data Rate and Signal-to-Noise Ratio
A Data-Driven Realization of the Control-Performance-Oriented Process Monitoring System
Buffeting Chaotification Model for Enhancing Chaos and Its Hardware Implementation
An Efficient DSP-FPGA-Based Real-Time Implementation Method of SVM Algorithms for an Indirect Matrix Converter
Fusing multiple data and knowledge sources for signal understanding by genetic algorithm
Active Disturbance Rejection Control Design With Suppression of Sensor Noise Effects in Application to DC-DC Buck Power Converter
Cascaded Multilevel Converters: Optimal Asymmetries and Floating Capacitor Control
Filippov-Based Stability Analysis of Digitally Controlled Single-Phase Grid-Tied Inverter
Deep Learning-Based Machinery Fault Diagnostics With Domain Adaptation Across Sensors at Different Places
Design and Evaluation of a Low-Cost High-Performance ΣΔ ADC for Embedded Control Systems in Induction Heating Appliances
A Design Method for PI-like Fuzzy Logic Controllers for DC-DC Converter
Principle, Design, and Analysis of a Novel Discrete Pulse Control for Single-Phase Voltage Source Inverter
Active Control Strategy of Partial Discharge for Insulation of High-Power High-Voltage High-Frequency Transformers (H 3 Ts)
Sensorless High Order Sliding Mode Control of Induction Motors With Core Loss
Design and Application of Stable Predictive Controller Using Recurrent Wavelet Neural Networks
Control Scheme for a Bidirectional Converter in a Self-Sustaining Low-Voltage DC Nanogrid
Electromagnetic Performance Analysis, Prediction, and Multiobjective Optimization for U-Type IPMSM
Modular Modeling and Statistical Validation for Grid-Connected FS-MPC-Controlled Matrix Converters
Prototyping of Nonlinear Time-Stepped Finite Element Simulation for Linear Induction Machines on Parallel Reconfigurable Hardware
Optimal Configuration for Mobile Robotic Grinding of Large Complex Components Based on Redundant Parameters
Space-vector Modulation in a two-phase induction motor drive for constant-power operation
Robust Proportional-Differential Control via Eigenstructure Assignment for Active Magnetic Bearings-Rigid Rotor Systems
Multicarrier-Based PWM Strategies With Complete Voltage Balance Control for NNPC Inverters
Sequential Monte Carlo Filter for State-of-Charge Estimation of Lithium-Ion Batteries Based on Auto Regressive Exogenous Model
Model-Free Predictive Current Control of PMSM Drives Based on Extended State Observer Using Ultralocal Model
Automatic Mode Matching in MEMS Vibrating Gyroscopes Using Extremum-Seeking Control
Realization of Rewinder With a Reduced Number of Sensors
A Novel Synchronous Rectification Scheme With Low Computational Burden for LLC Resonant Converter in EV Charger Applications
AGCG: Air-Ground Collaboration Geolocation Based on Visual Servo With Uncalibrated Cameras
A Second-Order Voltage Ripple Suppression Strategy of Five-Level Flying Capacitor Rectifiers Under Unbalanced AC Voltages
Model Predictive Direct Duty-Cycle Control for PMSM Drive Systems With Variable Control Set
Power Loss Prediction for Distributed Energy Resources: Rapid Loss Estimation Equation
A new circuit for measuring power factor in nonsinusoidal load current
On the Explicit Robust Force Control via Disturbance Observer
Shift-MRF Based Current Harmonics Compensation Decoupling Strategy in PMSM Considering Sampling Delay and Parameter Mismatch
Novel Topologies for Symmetric, Asymmetric, and Cascade Switched-Diode Multilevel Converter With Minimum Number of Power Electronic Components
Electrothermal PSpice Modeling and Simulation of Power Modules
Analysis of brushless permanent magnet synchronous motors
SCENS: Simultaneous Contrast Enhancement and Noise Suppression for Low-Light Images
Coupling Pattern Recognition With State Estimation Using Kalman Filter for Fault Diagnosis
Stator Frequency Regulation in a Field-Oriented Controlled DFIG Connected to a DC Link
On Active Disturbance Rejection Control for a Class of Uncertain Systems With Measurement Uncertainty
A Novel Universal Model Considering SAGE for MFD-Based Faulty Property Analysis Under RISC in Synchronous Generators
T-S Fuzzy-Model-Based Sliding-Mode Control for Surface-Mounted Permanent-Magnet Synchronous Motors Considering Uncertainties
A 5-Level Inverter Scheme Using Single DC Link With Reduced Number of Floating Capacitors and Switches for Open-End IM Drives
Synchronization at startup and stable rotation reversal of sensorless nonsalient PMSM drives
Acceleration Measurement Drift Rejection in Motion Control Systems by Augmented-State Kinematic Kalman Filter
A 50-kW High-Frequency and High-Efficiency SiC Voltage Source Inverter for More Electric Aircraft
Copper loss reduction of a voice-coil motor for cutting tool positioning using an auxiliary rotary motor
Robust Control of Dual-Linear-Motor-Driven Gantry Stage for Coordinated Contouring Tasks Based on Feed Velocity
Development of a Novel HVdc Circuit Breaker Combining Liquid Metal Load Commutation Switch and Two-Stage Commutation Circuit
An Interleaved Boost Converter With an Integrated Active Ripple Cancellation Filter
Speed Ripple Reduction of Direct-Drive PMSM Servo System at Low-Speed Operation Using Virtual Cogging Torque Control Method
Novel 2-DOF Planar Ultrasonic Motor With Characteristic of Variable Mode Excitation
A Kalman Optimization Approach for Solving Some Industrial Electronics Problems
Real-Time Lossless Compression for Ultrahigh-Density Synchrophasor and Point-on-Wave Data
Design and Analysis of a Field Modulated Magnetic Screw Without Permanent Magnet Skewing
A Neural-Network-Identifier and Fuzzy-Controller-Based Algorithm for Dynamic Decoupling Control of Permanent-Magnet Spherical Motor
Advanced Online Broadband Impedance Spectrum Acquisition of Fuel Cells by S-Transform
Front-End Buck Rectifier With Reduced Filter Size and Single-Loop Control
Learning and Adaptation-Based Position-Tracking Controller for Rover Vehicle Applications Considering Actuator Dynamics
Coupled-Inductor-Based Aalborg Inverter With Input DC Energy Regulation
Energy-Efficient Target Tracking by Mobile Sensors With Limited Sensing Range
A Robust Tracking Algorithm Based on Modified Generalized Probability Data Association for Wireless Sensor Network
A Discrete-Time Average Model-Based Predictive Control for a Quasi-Z-Source Inverter
Zero-Voltage-Switching PWM Hybrid Full-Bridge Three-Level Converter With Secondary-Voltage Clamping Scheme
Multiport Current-Limiting Hybrid DC Circuit Breaker for MTdc Grids
Bidirectional Current-Fed Resonant Inverter for Contactless Energy Transfer Systems
Performance Evaluation of a Five-Phase Modular Winding Induction Machine
Observer-Based Grid-Voltage Sensorless Synchronization and Control of a VSI-LCL Tied to an Unbalanced Grid
Investigation Into the High-Frequency Limits and Performance of Load Commutated Inverters for High-Speed Synchronous Motor Drives