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

Abstract

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.

Efficiency Improvement Scheme for PV Emulator Based on a Physical Equivalent PV-Cell Model

“…The microcontroller used in this work is the LAUNCHXL-F28379D from TI [29], [30]. The closed-loop control system and MPPT algorithm are implemented based on the control block diagram as shown in Fig.…”

Direct Modulation for Conventional Matrix Converters Using Analytical Signals and Barycentric Coordinates

“…No doubt, based on recent research progress, the v ok can be generated using collections of PWM duty cycles calculated by various algorithms, which are widely reported in the literature as a direct Venturini based methods, space vector approach [17], [18] or carrier-based modulation methods [1]- [3], [19]- [25]. A quite interesting approach to the AC-AC voltage synthesis represents the Model Predictive Control (MPC) with a finite control set and space vector modulation (SVM), which are the most common control methods for the CMC3 × 3 [23], [26], [27].…”

“…Note, that the magnitude of the cross product of two vectors is the area of the parallelogram with the two vectors as adjacent sides. Thus equations (17) and 18can be transformed finally to expression…”