Angelo Tani
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View article: A Theoretical Framework for the Control of Modular Multilevel Converters Based on Two-Time Scale Analysis
A Theoretical Framework for the Control of Modular Multilevel Converters Based on Two-Time Scale Analysis Open
The Modular Multilevel Converter (MMC) has gained significant popularity over the past decade due to its versatility. The MMC features have been leveraged in numerous fields, including high-voltage DC transmission, electric vehicle power t…
View article: Assessment of Current and Voltage Signature Analysis for the Diagnosis of Open-Phase Faults in Asymmetrical Six-Phase AC Permanent Magnet Synchronous Motor Drives
Assessment of Current and Voltage Signature Analysis for the Diagnosis of Open-Phase Faults in Asymmetrical Six-Phase AC Permanent Magnet Synchronous Motor Drives Open
Multiphase permanent-magnet motors are very attractive solutions for a large variety of applications, and specifically for electric vehicle applications. However, with a higher number of stator phases, multiphase permanent-magnet motors ar…
View article: Detection and Discrimination of Mixed Demagnetization and High-Resistance Connection Faults in Six-Phase Surface-Mounted PMSM Drive
Detection and Discrimination of Mixed Demagnetization and High-Resistance Connection Faults in Six-Phase Surface-Mounted PMSM Drive Open
Multiphase permanent magnet synchronous machines are receiving more and more concern in several safety critical industry applications, owing to their higher fault tolerability, when compared to the conventional three-phase permanent magnet…
View article: Multi-Phase Fault Tolerant MW Range Synchronous Machine Drives for Hybrid-Electric Aircraft
Multi-Phase Fault Tolerant MW Range Synchronous Machine Drives for Hybrid-Electric Aircraft Open
The emission goals of the aerospace industry cannot be accomplished through marginal improvement in the aircraft propulsion systems. Electric and hybrid-electric configurations are deemed revolutionary for newly conceived aircraft designs,…
View article: Modulation Strategy with Minimum Switching Losses for Three-Phase Non-Isolated AC–DC Matrix Converters
Modulation Strategy with Minimum Switching Losses for Three-Phase Non-Isolated AC–DC Matrix Converters Open
This paper presents an analysis of the operational characteristics of three-phase AC–DC matrix converters, which operate as rectifiers but possess a range of additional capabilities. These include the ability to reverse the power flow, con…
View article: High-Torque Density and Voltage Overmodulation for Five-Phase Induction Motor Drives
High-Torque Density and Voltage Overmodulation for Five-Phase Induction Motor Drives Open
The torque density of a multiphase motor can be increased without exceeding the admissible current of the drive if the high-order spatial harmonics of the magnetic field in the air gap are appropriately synchronized with the fundamental on…
View article: Open-Phase Fault-Tolerant Pole Transition Control of an Asynchronous Variable-Pole Machine Using Harmonic Plane Decomposition
Open-Phase Fault-Tolerant Pole Transition Control of an Asynchronous Variable-Pole Machine Using Harmonic Plane Decomposition Open
Automotive applications are revisiting the use of induction machines as magnet-free propulsive solutions due to their intrinsic robustness and reliability. Special multiphase configurations are under investigation to reduce the losses furt…
View article: Carrier-Based PWM Strategy for Output Current Ripple Minimization in Multiphase Motor Drives
Carrier-Based PWM Strategy for Output Current Ripple Minimization in Multiphase Motor Drives Open
Recently, multiphase drives have emerged as a notable alternative for three-phase drives in several domains, including electric marine propulsion, locomotive traction, and high-power industrial applications where fault tolerance and high r…
View article: Torque Ripple Suppression in Three-Phase Doubly-Fed Machine for Wireless Power Transfer in Integrated Drives
Torque Ripple Suppression in Three-Phase Doubly-Fed Machine for Wireless Power Transfer in Integrated Drives Open
Rotary assembly platforms are commonly used in the packaging industry. One of the problems that the designers have to solve is how to transfer power to auxiliary actuators mounted on a rotating disk. The preferred solution is to avoid slid…
View article: Local Demagnetization Detection in Six-Phase Permanent Magnet Synchronous Machines
Local Demagnetization Detection in Six-Phase Permanent Magnet Synchronous Machines Open
The partial demagnetization process in surface-mounted permanent-magnet synchronous motors (SMPMSMs) negatively affects the performance of an electric drive, reducing the rated torque and the efficiency of the machine. This article present…
View article: Development and Validation of a Smart Architecture for Thyristor Valves
Development and Validation of a Smart Architecture for Thyristor Valves Open
A high voltage thyristor converter is realized by many valve sections, whose volume is approximately occupied for only the 10% by thyristors and for the 10% by the relevant gate drivers. The remaining 80% is taken by passive auxiliary circ…
View article: A Machine-Learning-Based Interturn Short-Circuit Diagnosis for Multi-Three-Phase Brushless Motors
A Machine-Learning-Based Interturn Short-Circuit Diagnosis for Multi-Three-Phase Brushless Motors Open
Over the past few years, artificial intelligence techniques have become one of the most exciting technologies of our age. This fascinating field paves the way for new possibilities and extends to almost all areas of industry and research. …
View article: Robust Online Magnet Demagnetization Diagnosis in Asymmetrical Six-Phase AC Permanent Magnet Motor Drives
Robust Online Magnet Demagnetization Diagnosis in Asymmetrical Six-Phase AC Permanent Magnet Motor Drives Open
Rotor magnets are critical components, which in case of fault, directly affect the performance of drives based on permanent magnet synchronous motors. Thus, monitoring the rotor magnets status is essential to ensure both high level of effi…
View article: Overmodulation Strategies for an Open-End Winding Induction Motor Drive With a Floating Capacitor Bridge
Overmodulation Strategies for an Open-End Winding Induction Motor Drive With a Floating Capacitor Bridge Open
This paper considers a 3-phase induction motor with open-end windings fed by a primary bridge connected to the main power source and a floating bridge. The floating bridge supplies the motor with the required reactive power, while the prim…
View article: Integrated Boost-Converter for 400 V - 800 V Fast-Charging Compatibility
Integrated Boost-Converter for 400 V - 800 V Fast-Charging Compatibility Open
The automotive industry is increasing the voltage of the batteries from 400 V to 800 V to reduce the current rating of the vehicle cabling and the connectors to the external DC fast charger. Although 800 V vehicles are already on the marke…
View article: Fault-Tolerant Control Strategies of Five-Phase Induction Motor Drives under Open-Switch Fault
Fault-Tolerant Control Strategies of Five-Phase Induction Motor Drives under Open-Switch Fault Open
When an open switch fault occurs, a power switch in a converter leg is always open while the corresponding freewheeling diode can still conduct. This type of fault is usually caused by some problems in the driver circuits or the PWM commun…
View article: Voltage Balancing of the DC-Link Capacitors in Three-Level T-Type Multiphase Inverters
Voltage Balancing of the DC-Link Capacitors in Three-Level T-Type Multiphase Inverters Open
This paper illustrates an algorithm to balance the voltages across the DC-link capacitors of a three-level multiphase inverter feeding a star-connected load with an odd number of phases. The proposed strategy keeps the DC-link capacitors b…
View article: Exploitation of the Power Capability in a Five-Phase Doubly Fed Induction Motor Drive for Contact-Less Energy Transfer
Exploitation of the Power Capability in a Five-Phase Doubly Fed Induction Motor Drive for Contact-Less Energy Transfer Open
Rotary assembly stations are commonly used in automated manufacturing processes. These production platforms require the speed control of the plate and need power for the actuators and sensors located on the rotating frame. These requiremen…
View article: Detection and Localization of Incipient High Resistance Connection for Asymmetrical Twelve–Phase Induction Motor Drives
Detection and Localization of Incipient High Resistance Connection for Asymmetrical Twelve–Phase Induction Motor Drives Open
Multiphase induction motors are receiving more and more interest in applications where safety and high reliability of operation are key items. Thus, condition monitoring of stator faults is crucial for guaranteeing high motor performance a…
View article: Experimental assessment of winding inter‐turn short‐circuits fault signatures in six‐phase AC permanent magnet synchronous motors
Experimental assessment of winding inter‐turn short‐circuits fault signatures in six‐phase AC permanent magnet synchronous motors Open
The interest for multiphase permanent magnet synchronous machines, in modern renewable power generation systems, is increasing rapidly due principally to their high efficiency and fault‐tolerant capability. To meet the high‐performance req…
View article: Carrier-Based PWM Overmodulation Strategies for Five-Phase Inverters
Carrier-Based PWM Overmodulation Strategies for Five-Phase Inverters Open
In three-phase electric drives, overmodulation is commonly used to fully exploit the dc-bus voltage, increase the dynamic performance of the motor, and reduce the inverter switching frequency. The same advantages can be found in multiphase…
View article: A Trigonometric Solution to the Problem of Overmodulation in Five-Phase Inverters
A Trigonometric Solution to the Problem of Overmodulation in Five-Phase Inverters Open
The exploitation of the dc-link in multiphase inverters raises the problem of overmodulation, which has some peculiar traits compared to three-phase inverters. Typically, overmodulation allows exploiting the dc-bus voltage but suffers from…
View article: Impact of Star Connection Layouts on the Control of Multiphase Induction Motor Drives Under Open-Phase Fault
Impact of Star Connection Layouts on the Control of Multiphase Induction Motor Drives Under Open-Phase Fault Open
This paper presents a post-fault control algorithm that minimizes the stator Joule losses in multiphase induction machines under an open-phase fault and for different star connection layouts. The key novelty is that the algorithm can be ap…
View article: Control of the Torque and Rotor Power in a Five-Phase Wound-Rotor Induction Motor Drive for Rotary Assembly Platforms
Control of the Torque and Rotor Power in a Five-Phase Wound-Rotor Induction Motor Drive for Rotary Assembly Platforms Open
This paper illustrates the control system of a five-phase wound-rotor induction machine that can be used in applications where, besides the torque generation, a certain amount of active power must be transferred to loads collocated on the …
View article: High Resistance Fault-Detection and Fault-Tolerance for Asymmetrical Six-Phase Surface-Mounted AC Permanent Magnet Synchronous Motor Drives
High Resistance Fault-Detection and Fault-Tolerance for Asymmetrical Six-Phase Surface-Mounted AC Permanent Magnet Synchronous Motor Drives Open
In the last decade, the interest for higher reliability in several industrial applications has boosted the research activities in multiphase permanent magnet synchronous motors realized by multiple three-phase winding sets. In this study, …
View article: Comparison of Three Voltage Saturation Algorithms in Shunt Active Power Filters With Selective Harmonic Control
Comparison of Three Voltage Saturation Algorithms in Shunt Active Power Filters With Selective Harmonic Control Open
An array of proportional-resonant regulators is often used in shunt active power filters to control the grid currents and reduce the harmonic distortion caused by a distorting load. The voltage that is necessary to compensate for the curre…
View article: Rotor magnet demagnetisation diagnosis in asymmetrical six‐phase surface‐mounted AC PMSM drives
Rotor magnet demagnetisation diagnosis in asymmetrical six‐phase surface‐mounted AC PMSM drives Open
Multiphase permanent‐magnet synchronous machines (PMSMs) are receiving more and more interest in safety‐critical modern industries owing to their higher reliability when compared with conventional three‐phase PMSMs. Rotor magnets are criti…
View article: Decoupled <i>d</i>–<i>q</i> Axes Current-Sharing Control of Multi-Three-Phase Induction Machines
Decoupled <i>d</i>–<i>q</i> Axes Current-Sharing Control of Multi-Three-Phase Induction Machines Open
Multi three-phase drives are a particular case of multiphase systems, which are often used in high-power applications, such as wind-energy generation, naval and railway propulsion. In a multi three-phase system the electric machine is fed …
View article: Advantages of Communication in Double Three-Phase Surface Permanent Magnet Machines Fed by Independent Inverters
Advantages of Communication in Double Three-Phase Surface Permanent Magnet Machines Fed by Independent Inverters Open
This paper deals with a double three-phase Surface Permanent Magnet (SPM) drive where two independent three-phase inverters are supplying the same electrical machine. This work highlights how the magnetic coupling of the two windings affec…
View article: Wireless Power Transfer Using a Five-Phase Wound-Rotor Induction Machine for Speed-Controlled Rotary Platforms
Wireless Power Transfer Using a Five-Phase Wound-Rotor Induction Machine for Speed-Controlled Rotary Platforms Open
The use of rotary assembly platforms is common in several automation applications, such as in bottle filling and capping systems. One of the problems that designers has to address is how to supply the electric actuators, sensors and proces…