This paper presents a modification to the classical Model Predictive Control (MPC) algorithm and its application active power filters. The proposed control is able retain all advantages of finite set MPC while improving generated waveforms harmonic spectrum. In fact, modulation algorithm, based on cost function ratio for different output vectors, inherently included in MPC. function-based modulator introduced effectiveness reducing current ripple demonstrated. presented solution provides an...

This paper presents a new speed finite control set model predictive algorithm, which has been applied to permanent-magnet synchronous motor driven by matrix converter (MC). method replaces the classical cascaded scheme with single law that controls currents and speed. Additionally, unlike MC modulation methods, allows direct of input currents. The performance proposed work verified simulation studies experimental results.

A new method for electrical motor drive self-commissioning, with elastic couplings and backlash, is presented. The heuristic algorithm particle swarm optimization (PSO) has been used the identification of parameters. Initially, a model-based procedure performed to evaluate parameters system. Then, proportional-integral-derivative (PID)-based controller are optimized by using time-domain performance criterion. Experimental results, obtained testing three different laboratory permanent magnet...

This paper investigates the feasibility of a sensorless field-oriented control combined with finite-control set model predictive current (FCS-MPC) for an interior permanent-magnet synchronous motor. The use FCS-MPC makes implementation most existing techniques difficult due to lack modulator. proposed algorithm exploits saliency motor and intrinsic higher ripple extract position speed information using model-based approach. method does not require injection additional voltage vectors or...

This paper presents a novel oversampling deadbeat current control approach for permanent magnet synchronous motor drives capable of operating at controller sampling frequency multiple the power converter switching frequency. Model-based controllers suffer from heavy computational demand and performance degradation due to parameter uncertainties. The proposed concurrently with field-programmable gate array implementation permits achieve constant an optimal ripple along high current-loop...

Finite state model predictive control (MPC) has been recently applied to several converter topologies, as it can provide many advantages over other MPC techniques. The of include fast dynamics, multitarget capability, and relatively easy implementation on digital platforms. However, its inherent variable switching frequency lower steady-state waveform quality with respect standard control, which includes an appropriate modulation technique, represent a limitation applicability. Modulated (M...

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 rapid prototyping have been developed commercialised by few market players. Recently, increasing diffusion low cost, Do It Yourself targeted development gained shares previously controlled conventional trend has driven fact that, despite their lower performances, these cost systems are powerful enough to develop simple...

Based on the internal model principle, repetitive controller (RC) is capable of reducing periodic torque ripple by generating a compensating action that consequently needs to be synchronized with original ripple. However, synchronization difficult achieve using conventional RC when sampling frequency not integer multiple speed (known as fractional delay issue) or varies widely. To solve this problem, paper presents variable reduction method for permanent magnet synchronous machine drives...

Radial force control in electrical machines has been widely investigated for a variety of bearingless machines, as well the conventional structures featuring mechanical bearings. This paper takes advantage spatial distribution winding sets within stator structure multisector permanent-magnet (MSPM) machine toward achieving controllable radial force. An alternative technique MSPM is presented. The mathematical model and theoretical investigation production principle are provided. A novel...

Stability analysis of power converters in ac networks is complex due to the nonlinear nature conversion systems. Whereas interactions dc can be studied by linearizing about operating point, extension same approach systems poses serious challenges, especially for single-phase or unbalanced three-phase A general method stability suitable presented this paper, based on linear time periodic theory. grid-connected inverter with phase-locked loop (PLL) considered as case study. It demonstrated...

The angle-based repetitive controller (RC) has been applied successfully in the literature for torque ripple suppression variable speed permanent magnet synchronous machines (PMSMs). RC is preferred because of its learning capability, which allows cancelation all periodic ripples from multiple sources. However, tuning method not yet proposed. Since structure found similar to disturbance observer (DOB), convenient tune through pole placement, this paper merges and DOB into a novel (ARO) first...

In this paper, a dual-fed (DF) common dc-link topology open-end winding permanent magnet synchronous motor for aircraft high-speed starter-generator application is considered. While on one hand the dc bus configuration significantly simplifies and reduces costs of topology, other it allows zero-sequence current (ZSC) to flow freely in system. High-speed machines are characterized by low phase inductance, which implies impedance. A small time constant circuit produces high-frequency,...

In this paper, a switched model predictive control strategy is applied for the speed regulation of powertrain system composed an electrical motor connected to rotating load through elastic shaft and gear, which introduces backlash. The described piecewise-affine different law designed each dynamics, allows obtaining very simple controllers, suitable digital implementation in embedded systems. A Kalman filter employed order estimate unmeasurable states. proposed tested both simulations...

High-frequency signal injection sensorless algorithms are widely studied and used for rotor angle estimation in PMSM at low speed or standstill.One of the main drawbacks such methods is acoustic noise connected to voltage injection.In order minimize this problem, it advisable increase frequency injected signal.Thus, many studies focus on square-wave switching frequency, which maximum theoretical frequency.Since these exploit magnetic anisotropy, relatively easy use them interior PMSMs, where...

Bearingless machines are relatively new devices that consent to suspend and spin the rotor at same time. They commonly rely on two independent sets of three-phase windings achieve a decoupled torque suspension force control. Instead, winding structure proposed multisector permanent magnet (MSPM) bearingless machine permits combine generation in winding. In this paper, theoretical principles for described reference current calculation strategy is provided. Then, robust optimal position...

In medium-voltage AC applications, multilevel converters are essential due to their ability achieve high efficiency and significantly reduce total harmonic distortion (THD), ensuring improved performance power quality. This paper presents a detailed analysis of the efficiency, loss, THD characteristics multiplexed neutral point clamped converters. Using MATLAB®Simulink 2024b, switching conduction losses both NPC calculated. The three-level converter offers advantages simpler design, reduced...

Two different approaches to characterize the torque and radial force production in a bearingless multisector permanent magnet machine are presented this paper. The first method consists of modeling motor terms as function stationary reference frame α-β currents. current control signals then evaluated adopting Joule losses minimization constrain by means pseudoinverse matrix. second is based on magnetic field harmonics airgap through space vector (SV) technique. Once involved determined, SV...

The interest in multiphase machines for high power and reliable drives has been growing, many control algorithms have proposed to improve their torque performance. This article presents a new approach the modeling of multi three-phase drive, aiming at minimization ripple introduced by pulsewidth modulation (PWM) voltage excitation, shift carrier phase angles among different inverters. underlying idea is use standard converters feeding individual segment apply between PWM carriers. For...

In this article, a novel matrix converter modulation, which minimizes the losses is proposed. This approach preserves same voltage ratio of traditional modulations with key concept to compute duty cycles using only two closest input voltages instead all three-phase voltages. Compared Alesina-Venturini new strategy achieves higher efficiency due lower switching losses, in addition reduced harmonic content on output current. Hence, detailed mathematical treatment based knowledge power demand...

The study presents the direct flux and current vector control of an induction motor (IM) drive, which is a relatively newer promising strategy, through use model predictive (MPC) techniques. results highlight that fast nature strategy further enhanced by MPC. Predictive applied in two its variants, namely finite set modulated MPC, advantages limitations are underlined. This work also highlights, experimental results, importance prioritising part cost function particularly significant case IM...

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 technology converter is used, with one composed of standard IGBT devices and other fast switching Silicon Carbide (SiC) devices. The OEW configuration allows zero-sequence current (ZSC) flow freely, low time constants zero-circuit can lead high zero sequence flow, associated losses stress on power To avoid this, voltage...

In a common dc-link dual-fed open-end winding permanent magnet synchronous motor (OEW-PMSM) topology, it is well known how the additional flow of zero-sequence current (ZSC) permitted. The low impedance characteristic high-speed machines leads to high-intensity and high-frequency ripple ZSC. Therefore, there necessity eliminate zero-sequence-voltage (ZSV) produced by two voltage source converters that feed machine. Furthermore, non-sinusoidal back electromagnetic force (back EMF) causes...

A speed control scheme is presented for a 3-phase surface permanent magnet synchronous machine with an openend stator winding fed by three-phase inverter and floating bridge inverter.The latter used to compensate the reactive power of main maximize active received motor, without exceeding available current DC-link voltage.To reduce switching losses, voltage varies depending on operating condition motor controllability requirements system.The experimental results show that significant...

Power converters have turned into a critical and every-day solution for electric power systems. In fact, the incorporation of renewable energies has led towards constant improvement converter topologies their controls. this context, over last 10 years, model predictive control (MPC) is positioned as one most studied promising alternatives control. voltage source inverters (VSI), MPC only been applied in inner current loop, accelerating improving its dynamic response, but mentioned, limited...

High bandwidth and accuracy of the current control loop are fundamental requisites when a fast torque response is required or for facilitating reduction ripple in high-performance drives, especially at high speed. One most suitable methods to achieve these goals dead beat (DBCC). Many types DBCCs have been proposed implemented literature. This study proposes DBCC incorporating two new functionalities. steps prediction improve measurements taken place before each sampling period; particularly...