Model predictive control (MPC) is a very attractive solution for controlling power electronic converters. The aim of this paper to present and discuss the latest developments in MPC converters drives, describing current state strategy analyzing new trends challenges it presents when applied systems. revisits operating principle identifies three key elements strategies, namely prediction model, cost function, optimization algorithm. This summarizes most recent research concerning these...

Energy storage systems (ESSs) are enabling technologies for well-established and new applications such as power peak shaving, electric vehicles, integration of renewable energies, etc. This paper presents a review ESSs transport grid applications, covering several aspects the technology, main converters used to operate some energy technologies. Special attention is given different providing deep description system addressing most suitable technology. The objective this introduce subject give...

Model predictive control with a finite set has emerged as promising tool for power converters and drives. One of the major advantages is possibility to several system variables single law, by including them appropriate weighting factors. However, at present state art, these coefficients are determined empirically. There no analytical or numerical method proposed yet obtain an optimal solution. In addition, empirical not always straightforward, procedures have been reported. This paper...

The use of an inverter with output <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> filter allows for generation sinusoidal voltages low harmonic distortion, suitable uninterruptible power supply systems. However, the controller design becomes more difficult. This paper presents a new and simple control scheme using predictive two-level converter. uses model system to predict, on each sampling interval, behavior voltage possible switching...

This paper proposes an extended state observer (ESO) based second-order sliding-mode (SOSM) control for three-phase two-level grid-connected power converters. The proposed technique forces the input currents to track desired values, which can indirectly regulate output voltage while achieving a user-defined factor. presented approach has two loops. A current loop on SOSM and dc-link regulation consists of ESO plus SOSM. In this work, load connected capacitor is considered as external...

In the last decades, multilevel converters have been developed usually for medium-voltage high-power applications. They become a mature solution increasing power demand of multiple applications such as renewable energy systems, quality improvement, and motor drives. this paper, operation is addressed focusing on control modulation techniques different well-known The new developments are presented an extension conventional methods two-level voltage-source which still mainstream most cases.

Grid-connected power converters play a key role in several applications such as the integration of renewable energy sources and motor drives. For this reason, development high performance control strategies for particular class has increasingly attracted interest both academic industry researchers. This paper presents predictive optimal switching sequence (OSS) direct (DPC) (OSS-DPC) algorithm grid-connected converters. The OSS-DPC method belongs to predictive-DPC family provides desired...

In the last few years, restrictive grid codes have arisen to ensure performance and stability of electrical networks, which experience a massive integration renewable energy sources distributed generation systems that are normally connected through electronic power converters. these codes, injection positive- negative-sequence current components becomes necessary for fulfilling, among others, low-voltage ride-through requirements during balanced unbalanced faults. However, classical dq...

Electrification has been a key component of technological progress and economic development since the industrial revolution. It improved living conditions, spurred innovation, increased efficiency across all sectors our economy aspects lives. During coming decades, electrification is expected to reach further deeper into transportation, building, industry sectors, mainly motivated by energy transition zero-carbonemission-based mitigate climate change.

The power conversion system based on the modular connection has widespread applications in various electronic systems. To accurately estimate state of health without recognizing systematic mathematical model and to extend lifetime, this article proposes a lifetime extension approach Levenberg–Marquardt back propagation neural network (LM-BPNN) routing interleaved dc–dc boost LM-BPNN is constructed voltage, current, temperature data generated by system. On basis trained LM-BPNN, real-time...

The H-bridge (HB) converters are essential components in various power typologies, offering dual energy flow, increasing density, and enhancing extensibility. For the HB converters, dead zone plays a crucial role avoiding semiconductors against shoot-through phenomenon phase leg of an converter. However, it also negatively affects quality output ac currents, impacting system performance. This letter introduces simplified digital logic-based scheme that effectively compensates for converters....

Both the proportional-integral (PI) controller and super-twisting algorithm (STA) are attractive alternatives to effectively govern power converters. The PI is smooth but less robust disturbances, while STA exhibits good robustness with respect disturbances suffers from negative effect of chattering when some high control gains required in actual applications. To combine advantages both controllers, this paper explores a novel observer-based varying exponent gain scheme for three-level...

Abstract The application of scientific tools to analyse the use Internet-based e-learning in academic settings is general an ignored area. E-learning are actually emergent topic as a result new ideas introduced by European Higher Education Area. Lifelong learning, or promotion student initiative, paradigm learner-centred education. In this context, can represent effective way supporting trend Assuming premise that successful these web-based depends primarily on user's behaviour, objective...

The direct power control (DPC) technique has been widely used as a strategy for three-phase rectifiers due to its simplicity and good performance. DPC uses the instantaneous active reactive converter. controller design proposed with lookup table and, in recent works, an indirect inner loop proportional-plus-integral controllers errors. In this paper, model-based converters is designed, obtaining expressions input signal, which allow of adaptive law that minimizes errors introduced by...

Multilevel cascaded H-bridge converters have found industrial application in the medium-voltage high-power range. In this paper, a generalized modulation technique for type of converter based on multidimensional control region is presented. Using region, it shown that all previous techniques are particularized versions proposed method. Several possible solutions to develop specific implementation method addressed order show potential possibilities and flexibility technique. addition,...

Finite states model predictive control (FS-MPC) appears as a promising technique to be applied power converters in the industry. However, FS-MPC presents some drawbacks non constant switching frequency and high sampling frequency. This work proposes with low applying discrete space vector modulation (DSVM) technique. The real state vectors of converter are used together new virtual forming sequences each period. advantages disadvantages proposed DSVM analyzed using two-level three-phase...

In this paper, a model predictive control (MPC) based on optimal switching sequences (OSSs) for single-phase grid-connected full-bridge neutral-point-clampled (NPC) power converter is presented. The algorithm formulated in terms of OSSs, which was originally proposed to govern three-phase converters. the OSS concept extended MPC belongs continuous set and able provide fixed frequency while handling system constraints. has been experimentally tested an NPC prototype. Experimental results show...

Recently, a multilevel cascaded converter fed with single DC source has been presented. An analysis of the steady-state working limits this type is presented in paper. Limits maximum output voltage and minimum loading conditions for stable operation are addressed. In paper, way to achieve any ratio (inside area converter) between H-bridges single-DC-source H-bridge The proposed DC-voltage-ratio control based on time-domain modulation strategy that avoids use inappropriate states control....

This paper proposes a novel control strategy for three-level neutral-point-clamped (NPC) power converter. The proposed scheme consists of three loops, i.e., instantaneous tracking loop, voltage regulation and balancing loop. First, in the set adaptive sliding mode controllers are established to drive active reactive their desired values via radial basis function neural network technology. In an efficient but simple controller is designed regulate dc-link output where load considered as...

Modulation techniques for multilevel converters can create distorted output voltages and currents if the DC-link are unbalanced. This situation be avoided instantaneous DC voltage error is not taken into account in modulation process. paper proposes a feed-forward space vector method single-phase cascade converter. Using this technique, modulated of power converter always generates reference determined by controller, even worst case unbalance conditions. In addition, possibility optimizing...

Multilevel cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. In this way, several control and modulation techniques proposed power converter topology. paper, the steady-state balance in cells of single-phase two-cell CHB is studied. The capability to be supplied with active from grid or deliver each cell analyzed according dc-link voltages desired ac output voltage value. limits maximum minimum input powers stable operation are addressed....

This paper presents a new synchronization scheme for detecting multiple positive-/negative-sequence frequency harmonics in three-phase systems grid-connected power converters. The proposed technique is called MAVF-FLL because it based on the use of adaptive vectorial filters (AVFs) working together inside harmonic decoupling network, resting frequency-locked loop (FLL) which makes system adaptive. method uses properties input signal αβ reference frame order to obtain different components....