All Outputs (22)

Radial force control of Multi-Sector Permanent Magnet machines considering radial rotor displacement (2017)
Conference Proceeding

A mathematical model enabling to predict the electromagnetic x-y forces and torque for a given input current in a Multi-Sector Permanent Magnet Synchronous (MSPMS) machine is presented. The rotor static eccentricity is also accounted and the analytic... Read More about Radial force control of Multi-Sector Permanent Magnet machines considering radial rotor displacement.

Position control study of a bearingless multi-sector permanent magnet machine (2017)
Conference Proceeding

Bearingless motors combine in the same structure the characteristics of conventional motors and magnetic bearings. Traditional bearingless machines rely on two independent sets of winding for suspension force and torque production, respectively. The... Read More about Position control study of a bearingless multi-sector permanent magnet machine.

The design of a position-based repetitive control for speed ripple reduction in PMLSMs (2017)
Conference Proceeding

Periodic speed errors can occur in permanent magnet linear synchronous machines for two reasons: 1) a periodic reference signal; 2) cogging force and friction. For reducing such periodic errors, iterative learning control or repetitive control approa... Read More about The design of a position-based repetitive control for speed ripple reduction in PMLSMs.

Radial force control of multi-sector permanent magnet machines for vibration suppression (2017)
Journal Article

Radial force control in electrical machines has been widely investigated for a variety of bearingless machines, as well as for the conventional structures featuring mechanical bearings. This paper takes advantage of the spatial distribution of the wi... Read More about Radial force control of multi-sector permanent magnet machines for vibration suppression.

IGBT-SiC dual fed ground power unit (2017)
Conference Proceeding

This paper presents the design and control of a three-phase ground power supply unit for aircraft servicing. A new mixed technology converter composed by a three-phase Silicon Carbide (SiC) full bridge unit and a three-phase full bridge IGBT unit con... Read More about IGBT-SiC dual fed ground power unit.

Model predictive Direct Flux Vector Control of multi three-phase induction motor drives (2017)
Conference Proceeding

A model predictive control scheme for multiphase induction machines, configured as multi three-phase structures, is proposed in this paper. The predictive algorithm uses a Direct Flux Vector Control scheme based on a multi three-phase approach, where... Read More about Model predictive Direct Flux Vector Control of multi three-phase induction motor drives.

FPGA-based direct repetitive control for high performance ground power units (2017)
Conference Proceeding

This paper deals with a newly conceived control topology based on the Repetitive action in 4-leg VSI for stand-alone Ground Power Unit (GPU) applications. In such mode of operation, a dedicated controller has to regulate the inverter output voltages,... Read More about FPGA-based direct repetitive control for high performance ground power units.

Automated and scalable optimal control of three-phase embedded power grids including PLL (2017)
Conference Proceeding

Embedded grids have been increasingly adopted into applications such as More Electric Aircraft where different power converters are interconnected to each other. Interactions between the grid components poses the risk of instability to the system, mo... Read More about Automated and scalable optimal control of three-phase embedded power grids including PLL.

Integrated motor drive design for weight optimization (2017)
Conference Proceeding

The More-Electric Aircraft (MEA) concept has been introduced as part of the process of reducing the environmental impact of air travel. Incorporating more electrical systems including motor drives has become increasingly attractive researched. High p... Read More about Integrated motor drive design for weight optimization.

Sensorless control of matrix converter-fed synchronous reluctance motor drives (2017)
Conference Proceeding

This paper presents a sensorless control technique based on direct flux vector control (DFVC) method for synchronous reluctance (SyR) motor drives fed by a three-phase to three-phase matrix converter (MC). Rotor position is estimated based on active... Read More about Sensorless control of matrix converter-fed synchronous reluctance motor drives.

Robust control of flow separation over a pitching aerofoil using plasma actuators (2017)
Journal Article

We address the problem of controlling the unsteady flow separation over an aerofoil, using plasma actuators. Despite the complexity of the dynamics of interest, we show how the problem of controlling flow separation can be formulated as a simple outp... Read More about Robust control of flow separation over a pitching aerofoil using plasma actuators.

Modulated model predictive control for active split DC-bus 4-leg power supply (2017)
Conference Proceeding

This paper proposes a constant switching frequency Finite Control Set Model Predictive Control (FCS-MPC), formally Modulated FCS-MPC or M2PC, for a 4-leg inverter having an Active Split DC-bus on the fourth leg. The great advantage of MPC over linear... Read More about Modulated model predictive control for active split DC-bus 4-leg power supply.

Integrated design of motor drives using random heuristic optimization for aerospace applications (2017)
Conference Proceeding

High power density for aerospace motor drives is a key factor in the successful realization of the More Electric Aircraft (MEA) concept. An integrated system design approach offers optimization opportunities, which could lead to further improvements... Read More about Integrated design of motor drives using random heuristic optimization for aerospace applications.

IGBT-SiC dual fed open end winding PMSM drive (2017)
Conference Proceeding

This paper proposes a dual fed common dc link inverter Open End Winding-Permanent Magnet Synchronous Motor (OEW-PMSM) Drive. In order to increase the system efficiency a dual technology converter is used, with one inverter composed of standard IGBT d... Read More about IGBT-SiC dual fed open end winding PMSM drive.

Digital Dead-Beat and Repetitive combined control for stand-alone four-leg VSI (2017)
Journal Article

This paper deals with a newly conceived combined control topology. Dead-Beat and Repetitive controllers are proposed to operate jointly in a 4-leg VSI for stand-alone applications. In such mode of operation, dedicated controller has to regulate the i... Read More about Digital Dead-Beat and Repetitive combined control for stand-alone four-leg VSI.

Permanent magnet machine based starter-generator system with modulated model predictive control (2017)
Journal Article

The paper describes a hybrid control scheme for a permanent magnet machine based starter-generator (S/G) system. There has been increased usage of electric drive systems in the transportation sector for increased efficiency and reduced emissions. One... Read More about Permanent magnet machine based starter-generator system with modulated model predictive control.

A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs (2017)
Journal Article

Based on the internal model principle, repetitive controller (RC) is capable to reduce periodic torque ripple by generating a compensating action that consequently need to be synchronized with the original ripple. However, the synchronization is diff... Read More about A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs.

Direct flux and current vector control for induction motor drives using model predictive control theory (2017)
Journal Article

The study presents the direct flux and current vector control of an induction motor (IM) drive, which is a relatively newer and promising control strategy, through the use of model predictive control (MPC) techniques. The results highlight that the f... Read More about Direct flux and current vector control for induction motor drives using model predictive control theory.

uCube: Control platform for power electronics (2017)
Conference Proceeding

This paper presents a versatile tool for development, control and testing of power electronics converters. In the last decade, many different expensive off-the-shelf tools for rapid prototyping and testing have been developed and commercialised by fe... Read More about uCube: Control platform for power electronics.

Stability boundary analysis in single-phase grid-connected inverters with PLL by LTP theory (2017)
Journal Article

Stability analysis of power converters in AC net¬works is complex due to the non-linear nature of the conversion systems. Whereas interactions of converters in DC networks can be studied by linearising about the operating point, the extension of the... Read More about Stability boundary analysis in single-phase grid-connected inverters with PLL by LTP theory.