Challenges and Design Requirements for Industrial Applications of AC/AC Power Converters without DC-Link

Szcześniak, Paweł

doi:10.3390/en12081581

Cited by 14 publications

(14 citation statements)

References 47 publications

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“…Similarly to the mathematical model of CSMC with RL load using the SVM, a mathematical model with Venturini modulation [23] was constructed. This modulation is much simpler because the modulating functions are invariable for set operating conditions and defined by low-frequency modulation functions Equation (8). The average value, for the grid voltage period, of the unbalance voltage u N is zero.…”

Section: Modeling Of Csmc With Venturini Modulationmentioning

confidence: 99%

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Mathematical Modeling of Current Source Matrix Converter with Venturini and SVM

2020

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The study of Current Source Matrix Converter (CSMC) static properties using the averaged state-space method for two modulation strategies Venturini and Space Vector Modulation (SVM) is the subject of this article. The converter properties for both modulation strategies have been examined and compared. The modeling approach based on the averaged state space method presented in this paper is relatively simple and requires only a small number of mathematical transformations. The averaged set equation is obtained directly from the three-phase schematic circuit, taking into account the sequences of switching patterns and modulation strategies. All the obtained results have confirmed that CSMC has some interesting properties, such as buck–boost output voltage regulation unlike the classic Matrix Converter (MC), in which the maximum voltage gain is 0.866.

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Section: Modeling Of Csmc With Venturini Modulationmentioning

confidence: 99%

“…An alternative to indirect FC is direct FC. The best-known solution for such a system is a direct matrix converter (Matrix Converter (MC)) [7,8]. This converter is made of a matrix of bidirectional switches connected between input and output terminals.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of Current Source Matrix Converter with Venturini and SVM

2020

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“…However, in the practical application, the time delay in the turn-off of one and turn-on of the other device may lead to short-circuiting of DC-link due to momentary simultaneous conduction [11]. To address this problem a blank duration, called dead-time, is inserted between the switching on of the one device and off of the other ensuring safe operation [12]. The effective voltage is affected by the dead time at lower frequencies, which further distorted the inverter output voltage and results in additional components of low-order harmonics.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Power Converters Performance by an Efficient Use of Dead Time Compensation Technique

et al. 2020

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The advent of renewable energy resources and distributed energy systems herald a new set of challenges of power quality, efficient distribution, and stability in the power system. Furthermore, the power electronic converters integration has been increased in interfacing alternate energy systems and industries with the transmission and distribution grids. Owing to the intermittency of renewable energy resources and the application of power electronic converters the power distribution faces peculiar challenges. The dead-time effects are among the main challenges, which leads to the distortion of third harmonics, phase angle, torque pulsation, and induction motor current, causing severe quality problems for power delivery. To tackle these problems, this paper proposes a novel dead time compensation technique for improving the power quality parameters and improving the efficiency of power converters. The proposed model is simulated in MATLAB and the parametric equations are plotted against the corresponding parametric values. Furthermore, by implementing the proposed strategy, significant improvements are attained in the torque pulsation, speed, and total harmonic distortion of the induction motor. The comparisons are drawn between with and without dead time compensation technique, the former shows significant improvements in all aspects of the power quality parameters and power converters efficiency.

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“…From many of the works reported in the specialized literature, it is possible to establish that the correct tuning of these algorithms is the most significant constraint for MC implementation. The central issues are due to the complex calculus required by most of the modulation strategies and the proper synchronization of processes, followed by parallel execution of the gate generation algorithms [29]. However, modern digital devices allow addressing these problems by different reliable means [30].…”

Section: Introductionmentioning

confidence: 99%

Matrix Converter Based on SVD Modulation Using a Microcontroller as Unique Controlling Device

et al. 2019

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In this paper, the implementation of a complete set of control algorithms for a three-phase Matrix Converter (MC) is addressed. The control algorithms are implemented on a single Microcontroller Unit (MCU) of the enhanced C2000 Delfino family of Texas Instruments (TI). By a suitable programming sequence, the MCU is capable of fully controlling the MC, which avoids the use of special hardware for assuring a reliable commutation process. The Singular Value Decomposition modulation (SVD) and the four-step current commutation technique, fundamental steps in this proposal, were implemented in the TMS320F28379D MCU device. The optimal algorithmic strategies and a proficient design allow a compact implementation in a single device. For validating this study, extensive numerical simulations were carried out, and an experimental prototype was efficiently implemented. Both kinds of results were discussed and analyzed to demonstrate the effectiveness of the proposed implementation. INDEX TERMS Matrix converter, singular value decomposition, microcontroller unit, ac-ac converter.

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Challenges and Design Requirements for Industrial Applications of AC/AC Power Converters without DC-Link

Cited by 14 publications

References 47 publications

Mathematical Modeling of Current Source Matrix Converter with Venturini and SVM

Mathematical Modeling of Current Source Matrix Converter with Venturini and SVM

Improvement of Power Converters Performance by an Efficient Use of Dead Time Compensation Technique

Matrix Converter Based on SVD Modulation Using a Microcontroller as Unique Controlling Device

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