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Sérgio M. A. Cruz - IEEE Xplore Author Profile

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Author details

Sérgio M. A. Cruz

Also published under: S. M. A. Cruz, Sergio Cruz, Sérgio Cruz, SÉrgio M. A. Cruz, Sérgio M. Â Cruz, Sergio M. A. Cruz, Sérgio M. A. Cruz

Publications

75

Citations

2,155

Publications by Year

19952024

Co-Authors:

Mohsen Bandar AbadiSalman AbdiSaeed AfrandidehMeghdad AfshariMohsen Bandar-Abadi

Show All Co-Authors (62)

Sérgio M. A. Cruz

Also published under: S. M. A. Cruz, Sergio Cruz, Sérgio Cruz, SÉrgio M. A. Cruz, Sérgio M. Â Cruz, Sergio M. A. Cruz, Sérgio M. A. Cruz

Affiliation

Department of Electrical and Computer Engineering

University of Coimbra

Coimbra, Portugal

Instituto de Telecomunicações, Coimbra, Portugal

Publication Topics

Control Strategy,
Back Electromotive Force,
Model Predictive Control,
Permanent Magnet Synchronous Machines,
Permanent Magnet Synchronous Motor,
Simulation Results,
Additional Degrees Of Freedom,
Air-gap Flux,
Copper Loss,
Cost Function,
Current Harmonics,
Current Reference

Biography

Sérgio M. A. Cruz (Senior Member, IEEE) received the diploma, M.Sc., Dr.Eng. degrees in electrical engineering from the University of Coimbra, Coimbra, Portugal, in 1994, 1999, and 2004, respectively.,He has been with the Department of Electrical and Computer Engineering, University of Coimbra, where he is currently an Associate Professor with the Habilitation and the Director of the Electric Machines Laboratory. His research interests include power transformers, rotating electric machines, electric drives, and power electronic converters, with special emphasis on fault diagnosis, fault tolerance, and digital control.(Based on document published on 30 July 2024).

Publications

75

Citations

2,155

Publications by Year

19952024

Co-Authors:

Mohsen Bandar Abadi
Salman Abdi
Saeed Afrandideh
Meghdad Afshari
Mohsen Bandar-Abadi

Show All Co-Authors (62)

Author's Published Works

Search History

Showing 1-25 of 75 results

Conferences (48)

Journals (26)

Early Access Articles (1)

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Sérgio M. A. Cruz(35)
André M. S. Mendes(20)
S. M. A. Cruz(14)
S.M.A. Cruz(14)
Pedro F. C. Gonçalves(12)
Department of Electrical and Computer Engineering, University of Coimbra, Coimbra, Portugal(30)
Instituto de Telecomunicações, Coimbra, Portugal(10)
Department of Electrical and Computer Engineering, University of Coimbra and Instituto de Telecomunicações, Portugal(7)
Department of Electrical and Computer Engineering, Instituto de Telecomunicações, Coimbra, Portugal(5)
Department of Electrical Engineering, Texas A and M University, College Station, TX, USA(4)
IEEE Transactions on Industrial Electronics(12)
IEEE Transactions on Energy Conversion(7)
2017 IEEE International Electric Machines and Drives Conference (IEMDC)(4)
IEEE Transactions on Industry Applications(3)
2008 18th International Conference on Electrical Machines(2)
IEEE(75)
Miami, FL, USA(5)
Barcelona, Spain(2)
Istanbul, Turkey(2)
Melbourne, VIC, Australia(2)
Orlando, FL, USA(2)
Induction Motor(39)
Current Components(32)
Fault Diagnosis(29)
Simulation Results(27)
Stator Winding(25)

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IFRA Technique to Detect Stator Winding High Impedance Earth Faults During Startup in Salient-Pole Synchronous Generators

Mohammad Zamani;Farhad Haghjoo;Mohammad Reza Haseli;Sérgio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2024 | Early Access Article |

This article introduces an impulse frequency response analysis (IFRA) technique to detect stator winding earth faults in salient-pole synchronous generators during startup. The proposed technique involves injecting a square pulse with an appropriate frequency spectrum into the neutral point of the stator winding, which is grounded through a resistance. The transmitted signals from the three phases...Show More

IFRA Technique to Detect Stator Winding High Impedance Earth Faults During Startup in Salient-Pole Synchronous Generators

Mohammad Zamani;Farhad Haghjoo;Mohammad Reza Haseli;Sérgio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2024 | Early Access Article |

Prediction of Steady-State Thermal Characteristics of a Resistance Spot Welding Transformer in Battery Manufacturing Application

Armin Saki;Saleh Rahmani;Masoud Yavarinasab;Hossein Abootorabi Zarchi;Salman Abdi;Sérgio M. A. Cruz;Hamidreza Mosaddegh-Hesar

IEEE Transactions on Power Electronics

Year: 2024 | Volume: 39, Issue: 10 | Journal Article |

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This article introduces a novel finite-element-method-based model designed to analyze the electromagnetic–thermal dynamics of resistance spot welding (RSW) transformers used in battery manufacturing. The RSW process, inherently multiphysics and sensitive to temperature fluctuations, involves phase changes within the metal materials. This complexity, combined with frequent electrode connections and...Show More

Prediction of Steady-State Thermal Characteristics of a Resistance Spot Welding Transformer in Battery Manufacturing Application

Armin Saki;Saleh Rahmani;Masoud Yavarinasab;Hossein Abootorabi Zarchi;Salman Abdi;Sérgio M. A. Cruz;Hamidreza Mosaddegh-Hesar

IEEE Transactions on Power Electronics

Year: 2024 | Volume: 39, Issue: 10 | Journal Article |

A Simple Magnetic-Flux-Based Method for Localizing High-Resistance Stator Ground Faults in Synchronous Machines

Mohammad Zamani;Farhad Haghjoo;Mohammad Hamed Samimi;Sergio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2024 | Volume: 71, Issue: 5 | Journal Article |

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This article presents a new offline method based on the analysis of the magnetic flux to determine the location of stator ground faults in synchronous machines. First, the defective phase is identified via the insulation resistance (Megger) test, and then the longitudinal axis of the rotor is aligned with the faulty phase winding. During two measuring modes, a voltage is applied separately to each...Show More

A Simple Magnetic-Flux-Based Method for Localizing High-Resistance Stator Ground Faults in Synchronous Machines

Mohammad Zamani;Farhad Haghjoo;Mohammad Hamed Samimi;Sergio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2024 | Volume: 71, Issue: 5 | Journal Article |

An Explicit Minimum-Loss Control Strategy for Dual VSI DFIG-DC Systems

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

IEEE Journal of Emerging and Selected Topics in Power Electronics

Year: 2023 | Volume: 11, Issue: 5 | Journal Article |

Cited by: Papers (4)

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This article presents a new minimum-loss control strategy for vector-controlled dual-voltage source inverter (VSI) doubly-fed induction generator (DFIG)-dc systems. The optimization is based on a simplified formalism using Lagrange multipliers to determine the optimal stator frequency, stator/rotor magnetizing current split, and the magnetizing flux magnitude as a function of the machine operating...Show More

An Explicit Minimum-Loss Control Strategy for Dual VSI DFIG-DC Systems

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

IEEE Journal of Emerging and Selected Topics in Power Electronics

Year: 2023 | Volume: 11, Issue: 5 | Journal Article |

Fault-Tolerant Predictive Current Control of Six-Phase PMSMs With Minimal Reconfiguration Requirements

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Journal of Emerging and Selected Topics in Power Electronics

Year: 2023 | Volume: 11, Issue: 2 | Journal Article |

Cited by: Papers (10)

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By manipulating the additional degrees of freedom of multiphase machines, inherent to this type of machine, fault-tolerant control strategies are able to keep multiphase drives in service after one or more open-phase faults (OPFs). Therefore, multiphase machines controlled by finite control set model predictive control (FCS-MPC) strategies are an excellent fit for critical systems, where reliabili...Show More

Fault-Tolerant Predictive Current Control of Six-Phase PMSMs With Minimal Reconfiguration Requirements

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Journal of Emerging and Selected Topics in Power Electronics

Year: 2023 | Volume: 11, Issue: 2 | Journal Article |

Online Filter Parameters Estimation in a Double Conversion UPS System for Real-Time Model Predictive Control Performance Optimization

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. PerdigãO

Year: 2022 | Volume: 10 | Journal Article |

Cited by: Papers (4)

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Uninterruptible Power Supplies (UPS) represent the key technology to continuously feed and protect a wide range of critical applications in electric power systems. Due to their continuous operation, UPS components degrade over time, including their filtering elements, leading to decreased filtering capabilities. With these deviations, UPS performance is typically reduced. Moreover, if filter param...Show More

Online Filter Parameters Estimation in a Double Conversion UPS System for Real-Time Model Predictive Control Performance Optimization

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. PerdigãO

Year: 2022 | Volume: 10 | Journal Article |

Online Diagnostic Method for the Detection of High-Resistance Connections and Open-Phase Faults in Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Transactions on Industry Applications

Year: 2022 | Volume: 58, Issue: 1 | Journal Article |

Cited by: Papers (30)

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Even though multiphase machines have inherent fault-tolerant capabilities due to their additional degrees of freedom, fault diagnosis still plays an important role to continuously monitor these machines and, thus, prevent critical failures. High-resistance connection (HRC) is one of the most common electric faults in electrical machines and is caused by damaged power connections. These faults crea...Show More

Online Diagnostic Method for the Detection of High-Resistance Connections and Open-Phase Faults in Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Transactions on Industry Applications

Year: 2022 | Volume: 58, Issue: 1 | Journal Article |

Disturbance Observer Based Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines for the Mitigation of Steady-State Errors and Current Harmonics

Pedro F.C. Gonçalves;Sérgio M.A. Cruz;André M. S. Mendes

IEEE Transactions on Industrial Electronics

Year: 2022 | Volume: 69, Issue: 1 | Journal Article |

Cited by: Papers (40)

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Multiphase machines, associated with state-of-the-art control strategies like finite control set model predictive control (FCS-MPC) are suitable for applications where reliability and disturbance-free operation are key factors. Although FCS-MPC provides good transient performance and straightforward design, the performance of the drive system is affected by model inaccuracies due to parameter mism...Show More

Disturbance Observer Based Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines for the Mitigation of Steady-State Errors and Current Harmonics

Pedro F.C. Gonçalves;Sérgio M.A. Cruz;André M. S. Mendes

IEEE Transactions on Industrial Electronics

Year: 2022 | Volume: 69, Issue: 1 | Journal Article |

On the Stability of a Minimum-Loss Controlled Dual-VSI DFIG-DC System

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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Recently a minimum-loss control strategy for the Dual-VSI-DFIG system was proposed. It is implemented using three rules for the determination of the optimal stator frequency, of the stator/rotor magnetizing current split and of the airgap-flux magnitude. The method uses airgap-flux orientation with direct airgap-flux and rotor-current control. This paper presents a stability analysis for the Dual-...Show More

On the Stability of a Minimum-Loss Controlled Dual-VSI DFIG-DC System

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society

Year: 2021 | Conference Paper |

Study on Inter-Turn Short Circuit Fault and High Resistance Connection in the Stator of Doubly-Fed Induction Generators

Meghdad Afshari;Seyed M. M. Moosavi;Mohsen B. Abadi;Sérgio M. A. Cruz

7th Iran Wind Energy Conference (IWEC2021)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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Doubly-fed induction generators (DFIG) have been widely used in wind turbines installed in the last decades. These generators are prone to some faults that could deteriorate their performance and even lead to their outage from the network. Stator inter-turn short-circuits (SITSC) and high resistance connections (HRC) in the stator are two major types of faults that cause electrical asymmetry in th...Show More

Study on Inter-Turn Short Circuit Fault and High Resistance Connection in the Stator of Doubly-Fed Induction Generators

Meghdad Afshari;Seyed M. M. Moosavi;Mohsen B. Abadi;Sérgio M. A. Cruz

7th Iran Wind Energy Conference (IWEC2021)

Year: 2021 | Conference Paper |

Model Predictive Control for paralleled UPS systems with load-side neutral wire

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. Perdigão

2021 22nd IEEE International Conference on Industrial Technology (ICIT)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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Uninterruptible Power Supplies (UPS) play a key role in feeding a wide range of critical applications such as high-tier datacenters and medical facilities. Given the variety of loads that typically exist in such applications, UPS systems should be able to correctly operate under highly unbalanced load conditions and to simultaneously supply single- and three-phase loads. On the other hand, UPS sys...Show More

Model Predictive Control for paralleled UPS systems with load-side neutral wire

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. Perdigão

2021 22nd IEEE International Conference on Industrial Technology (ICIT)

Year: 2021 | Volume: 1 | Conference Paper |

Online estimation of passive elements in a double conversion UPS system with no additional sensors

Tiago J. L. Oliveira;Tiago M. C. Baptista;Luís M. A. Caseiro;André M. S. Mendes;Marina S. Perdigão;Sérgio M. A. Cruz

2021 Telecoms Conference (ConfTELE)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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Uninterruptible Power Supplies (UPS) represent the main technology used to supply a wide range of critical applications in which information, communication and technology (ICT) facilities such as high-tier datacenters are widely included. Beyond power converters, UPS systems require passive elements not only for proper current/voltage filtering but also to create an internal DC bus. Since these el...Show More

Online estimation of passive elements in a double conversion UPS system with no additional sensors

Tiago J. L. Oliveira;Tiago M. C. Baptista;Luís M. A. Caseiro;André M. S. Mendes;Marina S. Perdigão;Sérgio M. A. Cruz

2021 Telecoms Conference (ConfTELE)

Year: 2021 | Conference Paper |

Multistage Predictive Current Control Based on Virtual Vectors for the Reduction of Current Harmonics in Six-Phase PMSMs

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Transactions on Energy Conversion

Year: 2021 | Volume: 36, Issue: 2 | Journal Article |

Cited by: Papers (30)

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The most recent finite control set model predictive control (FCS-MPC) strategies for six-phase electric drives avoid the excitation of the secondary subspace by using virtual vectors to minimize the current ripple. However, these strategies can only control the fundamental current components, which adjust the machine flux and torque and leave the secondary current components unregulated, which sho...Show More

Multistage Predictive Current Control Based on Virtual Vectors for the Reduction of Current Harmonics in Six-Phase PMSMs

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IEEE Transactions on Energy Conversion

Year: 2021 | Volume: 36, Issue: 2 | Journal Article |

Detection of Turn-to-Turn Faults in the Stator and Rotor of Synchronous Machines During Startup

Saeed Afrandideh;Farhad Haghjoo;Sérgio Cruz;Mostafa Eshaghi Milasi

IEEE Transactions on Industrial Electronics

Year: 2021 | Volume: 68, Issue: 8 | Journal Article |

Cited by: Papers (16)

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An invasive diagnostic technique is proposed in this article for the detection and discrimination of turn-to-turn faults in the stator and rotor windings of synchronous machines during the startup period. For this purpose, search coils are installed in the machine to sense the rotational magnetic field along the air-gap circumference, while the difference in the related induced voltages (different...Show More

Detection of Turn-to-Turn Faults in the Stator and Rotor of Synchronous Machines During Startup

Saeed Afrandideh;Farhad Haghjoo;Sérgio Cruz;Mostafa Eshaghi Milasi

IEEE Transactions on Industrial Electronics

Year: 2021 | Volume: 68, Issue: 8 | Journal Article |

Open-Phase Fault Diagnosis in Six-Phase PMSM Drives Based on the Harmonics of the Measured Secondary Subspace Currents

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society

Year: 2020 | Conference Paper |

Cited by: Papers (5)

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Multiphase machines are ideal candidates for application in electric drives for critical applications. Since they can operate with open-phase faults (OPFs) without requiring extra hardware, the fault detection is important to reconfigure the control strategy. Hence, this paper proposes a new signal-based diagnosis method to detect OPFs in six-phase permanent magnet synchronous machine (PMSM) drive...Show More

Open-Phase Fault Diagnosis in Six-Phase PMSM Drives Based on the Harmonics of the Measured Secondary Subspace Currents

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society

Year: 2020 | Conference Paper |

Sensitivity to Parameter Mismatch in a Bi-Subspace Predictive Current Control Strategy for Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society

Year: 2020 | Conference Paper |

Cited by: Papers (2)

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The application of finite control set model predictive control (FCS-MPC) to multiphase electric drives has been widely studied in recent years due to its enhanced transient performance, simple structure, and low tuning requirements. However, the selection of the optimal control actuation by FCS-MPC strategies relies on the accuracy of the system model, which depends on the knowledge of the paramet...Show More

Sensitivity to Parameter Mismatch in a Bi-Subspace Predictive Current Control Strategy for Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society

Year: 2020 | Conference Paper |

Suppression of Steady-State Errors in Predictive Current Control of Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2020 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2020 | Conference Paper |

Cited by: Papers (4)

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Due to their fault-tolerant capabilities, multiphase machines are a good candidate for application in electric drives where the reliability is a key factor. Recently, finite control set model predictive control (FCS-MPC) has been applied to multiphase drives as it provides good dynamic performance, however it cannot provide zero steady-state errors in the controlled variables due to parameter unce...Show More

Suppression of Steady-State Errors in Predictive Current Control of Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2020 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2020 | Conference Paper |

Diagnosis of Open-Phase Faults and High Resistance Connections in Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2020 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2020 | Conference Paper |

Cited by: Papers (5)

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Although multiphase machines can operate with one or more disabled phases, the diagnosis of an open-phase fault (OPF) is important in order to reconfigure the control strategy. High resistance connection faults (HRCFs) are created by unsecured and damaged connections and if not detected early on can evolve to OPFs. In the case of six-phase machines, currently available diagnostic methods consider ...Show More

Diagnosis of Open-Phase Faults and High Resistance Connections in Six-Phase PMSM Drives

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2020 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2020 | Conference Paper |

Stability Study of a Minimum-Loss Strategy Controlled Dual-VSI DFIG DC System

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

Year: 2020 | Conference Paper |

Cited by: Papers (2)

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A minimum-loss control strategy for the Dual-VSI-DFIG system was presented recently. Based on analytic optimization, three rules were derived for the optimal stator frequency, stator/rotor magnetizing current split and airgap-flux magnitude. These optimal rules were implemented via vector control using airgap-flux orientation. In this paper, the synthesis of the Proportional Integral controllers b...Show More

Stability Study of a Minimum-Loss Strategy Controlled Dual-VSI DFIG DC System

Gil D. Marques;Matteo F. Iacchetti;Sérgio M. A. Cruz

2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

Year: 2020 | Volume: 1 | Conference Paper |

Switching frequency reduction for efficiency optimization in two paralleled UPS systems

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. Perdigão

2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

Year: 2020 | Conference Paper |

Cited by: Papers (3)

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In this paper, the switching frequency reduction in two paralleled Uninterruptible Power Supplies (UPS) is studied in order to obtain maximum global system efficiency. Typically, by reducing the switching frequency of a converter, its efficiency increases. However, when connected in parallel, UPSs are subjected to a Zero Sequence Circulating Current (ZSCC) that compromises a correct system operati...Show More

Switching frequency reduction for efficiency optimization in two paralleled UPS systems

Tiago J. L. Oliveira;Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz;Marina S. Perdigão

2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

Year: 2020 | Volume: 1 | Conference Paper |

Minimum-Loss Control Strategy for a Dual-VSI DFIG DC System

Gil D. Marques;Sérgio M. A. Cruz;Matteo F. Iacchetti

IEEE Transactions on Industrial Electronics

Year: 2020 | Volume: 67, Issue: 10 | Journal Article |

Cited by: Papers (19)

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This article addresses the minimum-loss control of the dual voltage-source inverter (VSI) and doubly fed induction generator (DFIG) system connected to a dc link. The minimum-loss operating conditions for field-oriented control based on the airgap flux are obtained analytically using Lagrange multipliers and validated with numerical optimization. As the main contribution of this article, the analy...Show More

Minimum-Loss Control Strategy for a Dual-VSI DFIG DC System

Gil D. Marques;Sérgio M. A. Cruz;Matteo F. Iacchetti

IEEE Transactions on Industrial Electronics

Year: 2020 | Volume: 67, Issue: 10 | Journal Article |

Turn to Turn Fault Detection, Discrimination, and Faulty Region Identification in the Stator and Rotor Windings of Synchronous Machines Based on the Rotational Magnetic Field Distortion

Saeed Afrandideh;Mostafa Eshaghi Milasi;Farhad Haghjoo;Sérgio M. A. Cruz

IEEE Transactions on Energy Conversion

Year: 2020 | Volume: 35, Issue: 1 | Journal Article |

Cited by: Papers (37)

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A flux-based technique is proposed for the on-line detection, localization and discrimination of stator and rotor turn-to-turn faults in synchronous generators, using the measured air-gap rotational magnetic field. Simple magnetic field sensors (MFSs) are installed in the stator slots at different regions, and the corresponding induced voltages are measured. Several differential voltages are then ...Show More

Turn to Turn Fault Detection, Discrimination, and Faulty Region Identification in the Stator and Rotor Windings of Synchronous Machines Based on the Rotational Magnetic Field Distortion

Saeed Afrandideh;Mostafa Eshaghi Milasi;Farhad Haghjoo;Sérgio M. A. Cruz

IEEE Transactions on Energy Conversion

Year: 2020 | Volume: 35, Issue: 1 | Journal Article |

Cooperative and Dynamically Weighted Model Predictive Control of a 3-Level Uninterruptible Power Supply With Improved Performance and Dynamic Response

Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2020 | Volume: 67, Issue: 6 | Journal Article |

Cited by: Papers (33)

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In this paper, we propose a 3-level double conversion uninterruptible power supply with a new cooperative and dynamically weighted model predictive control technique. A 3-level dc-dc converter is used to improve the dc bus balance and the overall response of the uninterruptible power supply (UPS). A new cooperative model predictive control principle is proposed to enhance the response of multiconv...Show More

Cooperative and Dynamically Weighted Model Predictive Control of a 3-Level Uninterruptible Power Supply With Improved Performance and Dynamic Response

Luís M. A. Caseiro;André M. S. Mendes;Sérgio M. A. Cruz

IEEE Transactions on Industrial Electronics

Year: 2020 | Volume: 67, Issue: 6 | Journal Article |

Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines with Modulated Virtual Vectors

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

Year: 2019 | Conference Paper |

Cited by: Papers (8)

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This paper presents a novel predictive current control strategy with modulated virtual voltage vectors for six-phase drives based on the asymmetrical permanent magnet synchronous machine (PMSMs) with isolated neutrals. The proposed strategy combines two virtual vectors and two zero vectors over a sampling period, whose duty cycles are computed to minimize the tracking error of the current componen...Show More

Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines with Modulated Virtual Vectors

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

Year: 2019 | Volume: 1 | Conference Paper |

Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines Based on Virtual Vectors with Optimal Amplitude and Phase

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2019 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2019 | Conference Paper |

Cited by: Papers (11)

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This paper presents an innovative predictive current control (PCC) strategy based on virtual voltage vectors with optimal amplitude and phase for six-phase asymmetrical permanent magnet synchronous machines (PMSMs) with isolated neutrals. This strategy combines two virtual vectors and two zero vectors over a sampling period in order to reduce the torque ripple and enhance the tracking of reference...Show More

Predictive Current Control of Six-Phase Permanent Magnet Synchronous Machines Based on Virtual Vectors with Optimal Amplitude and Phase

Pedro F. C. Gonçalves;Sérgio M. A. Cruz;André M. S. Mendes

2019 International Conference on Smart Energy Systems and Technologies (SEST)

Year: 2019 | Conference Paper |

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