scholarly journals Four-Step Current Commutation Strategy for a Matrix Converter Based on Enhanced-PWM MCU Peripherals

Electronics ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 547 ◽  
Author(s):  
Luis Ramon Merchan-Villalba ◽  
Jose Merced Lozano-Garcia ◽  
Diego Armando de Jesus Gutierrez-Torres ◽  
Juan Gabriel Avina-Cervantes ◽  
Alejandro Pizano-Martinez
Keyword(s):  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Programmable Logic ◽  
Gate Arrays ◽  
Field Programmable ◽  
Power Switches ◽  
Current Commutation ◽  
Programmable Gate Arrays ◽  
Programmable Logic Devices ◽  
Microcontroller Unit

In this paper, an efficient implementation of the four-step current commutation technique for controlling bidirectional power switches in a Matrix Converter (MC) is proposed. This strategy is based on the enhanced pulse width modulation peripheral included in the C 2000 Delfino 32-bit microcontroller of Texas Instruments. By tuning the algorithmic parameters contained in this module, the four-step commutation process is carried out on the Microcontroller Unit (MCU) without overloading the full complex processor and avoiding the use of additional special hardware such as Field-Programmable Gate Arrays (FPGA) or Complex Programmable Logic Devices (CPLD) when controlling the MC. The algorithm is implemented on the TMS320F28379D MCU and operationally validated on an MC prototype, where the functionality of the proposal is demonstrated.

scholarly journals PROJETO E IMPLEMENTAÇÃO DE FILTRO DE KALMAN EMBARCADO EM FPGA PARA O RASTREIO DE FOGUETES BALÍSTICOS

2014 ◽  
pp. 149
Author(s):  
Madson Cruz Machado ◽  
João Viana da Fonseca Neto ◽  
José Alano Peres Abreu
Keyword(s):  
Kalman Filter ◽  
Real Data ◽  
Field Programmable Gate Arrays ◽  
High Accuracy ◽  
Programmable Logic ◽  
Logic Device ◽  
Filtering Algorithm ◽  
Gate Arrays ◽  
Field Programmable ◽  
Programmable Gate Arrays

Neste trabalho faz-se uma abordagem acerca do fiiltro de Kalman no que tange a sua concep-ção, modelamento matemático, algoritmo de fiiltragem e implementação em FPGA (Field Programmable Gate Arrays). Faz-se também um breve estudo sobre o dispositivo lógico programável (PLD) do tipo FPGA, sua arquitetura e suas aplicações. Após o estudo acerca do fiiltro de Kalman e sobre FPGA pas-sa-se para a etapa de embarcar o fiiltro em hardware do tipo FPGA explorando as suas características de processamento paralelo. A etapa fiinal é a validação do fiiltro executando o algoritmo de fiiltragem em FPGA usando dados reais de lançamento de foguetes balísticos. Os dados foram fornecidos pelo Centro de Lançamento de Alcântara (CLA). A principal contribuição deste trabalho é a implementação de uma arquitetura FPGA reconfigurável, garantindo uma plataforma rápida o suficiente para radares com alta precisão e boa capacidade de rastreamento de foguetes.Palavras-chave: Filtro de Kalman. FPGA. Lançamento de foguete. Filtragem.DESIGN AND IMPLEMENTATION OF KALMAN FILTER EMBEDDED IN FPGA FOR TRACKING OF BALLISTIC ROCKETABSTRACT: This work is an approach about the Kalman filter with respect to its design, mathematical modeling, filtering algorithm and implementation in FPGA (Field Programmable Gate Arrays). Also make a brief study on the programmable logic device (PLD) type FPGA, its architecture and its applications. After the study of the Kalman filter on FPGA and passes to the step of embedded on the filter in FPGA type hardware exploring its features parallel processing. The final step is to validate the filter running filtering algorithm in FPGA using real data from launching ballistic rockets. The data were provided by the Alcan-tara Launch Center (CLA). The main contribution of this work is the implementation of a reconfigurable FPGA architecture, ensuring fast enough to radar platform with high accuracy and good tracking capability rockets.KEYWORDS: Kalman filter. FPGA. Rocket launching. Filtering.DISEÑO E IMPLEMENTACIÓN DE FILTRO KALMAN EMBARCARON EN FPGA PARA DETECCIÓN DE ROCKET BALLISTICRESUMEN: Este trabajo es un enfoque sobre el filtro de Kalman con respecto a su diseño, el modelado matemático y la implementación algoritmo de filtrado en FPGA (Field Programmable Gate Arrays). Tambi-én hace un breve estudio sobre el dispositivo lógico programable (PLD) tipo FPGA, su arquitectura y sus aplicaciones. Tras el estudio del filtro de Kalman en FPGA pasa a la etapa de embarcarse en la FPGA hardware tipo de filtro explorar sus características de procesamiento paralelo. El último paso es validar el filtro funcionando algoritmo de filtrado en FPGA utilizando datos reales de lanzamiento de cohetes balísti-cos. Los datos fueron proporcionados por el Centro de Lanzamiento de Alcántara (CLA). La principal con-tribución de este trabajo es la implementación de una arquitectura FPGA reconfigurable, asegurando la suficiente rapidez a la plataforma de radar con alta precisión y buenos cohetes capacidad de seguimiento.PALABRAS CLAVE: Filtro de Kalman. FPGA. Cohete de lanzamiento. El filtrado.

scholarly journals Memory Chips with Adjustable Configurations

VLSI Design ◽  
1999 ◽  
Vol 10 (2) ◽  
pp. 203-215
Author(s):  
Lizy Kurian John
Keyword(s):  
Random Access ◽  
Memory Cell ◽  
Programmable Logic ◽  
Cell Array ◽  
Gate Arrays ◽  
Mode Control ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Cell Arrays ◽  
Design Tradeoffs

In this paper, we present the concept of Field Programmable Memory Cell Arrays (FPMCAs) as the memory counterpart to Field Programmable Gate Arrays which have proved their utility in design and rapid prototyping. Principles of dynamic reconfigurability using programmable logic and programmable interconnect are incorporated into random access memories to achieve this flexibility. We first present the design of a variable width RAM (VaWiRAM) which is a simple example of a Field Programmable Memory Cell Array. The configuration of VaWiRAMs can be adjusted by setting a few configuration pins on the memory chip. A VaWiRAM reconfigurable between widths 1 and Wmax⁡ can be constructed with the extra cost of Wmax⁡ – 1 pass gates, (Wmax⁡/2) 2-to-1 multiplexers, and ⌈log⁡2[log⁡2(k) + 1]⌉ mode pins. A novel scheme to overlap the address pins with mode control pins and achieve the mode control with only one extra pin is also presented. The paper discusses the architecture of the proposed VaWiRAMs in detail, analyzes the design tradeoffs and introduces the concept of FPMCAs.

scholarly journals FPGA-Based Controller for a Hybrid Grid-Connected PV/Wind/Battery Power System with AC Load

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2108
Author(s):  
Mohamed Yassine Allani ◽  
Jamel Riahi ◽  
Silvano Vergura ◽  
Abdelkader Mami
Keyword(s):  
Fuzzy Logic ◽  
Hybrid System ◽  
High Voltage ◽  
Field Programmable Gate Arrays ◽  
Energy System ◽  
Maximum Power ◽  
Hybrid Energy ◽  
Gate Arrays ◽  
Field Programmable ◽  
Programmable Gate Arrays

The development and optimization of a hybrid system composed of photovoltaic panels, wind turbines, converters, and batteries connected to the grid, is first presented. To generate the maximum power, two maximum power point tracker controllers based on fuzzy logic are required and a battery controller is used for the regulation of the DC voltage. When the power source varies, a high-voltage supply is incorporated (high gain DC-DC converter controlled by fuzzy logic) to boost the 24 V provided by the DC bus to the inverter voltage of about 400 V and to reduce energy losses to maximize the system performance. The inverter and the LCL filter allow for the integration of this hybrid system with AC loads and the grid. Moreover, a hardware solution for the field programmable gate arrays-based implementation of the controllers is proposed. The combination of these controllers was synthesized using the Integrated Synthesis Environment Design Suite software (Version: 14.7, City: Tunis, Country: Tunisia) and was successfully implemented on Field Programmable Gate Arrays Spartan 3E. The innovative design provides a suitable architecture based on power converters and control strategies that are dedicated to the proposed hybrid system to ensure system reliability. This implementation can provide a high level of flexibility that can facilitate the upgrade of a control system by simply updating or modifying the proposed algorithm running on the field programmable gate arrays board. The simulation results, using Matlab/Simulink (Version: 2016b, City: Tunis, Country: Tunisia, verify the efficiency of the proposed solution when the environmental conditions change. This study focused on the development and optimization of an electrical system control strategy to manage the produced energy and to coordinate the performance of the hybrid energy system. The paper proposes a combined photovoltaic and wind energy system, supported by a battery acting as an energy storage system. In addition, a bi-directional converter charges/discharges the battery, while a high-voltage gain converter connects them to the DC bus. The use of a battery is useful to compensate for the mismatch between the power demanded by the load and the power generated by the hybrid energy systems. The proposed field programmable gate arrays (FPGA)-based controllers ensure a fast time response by making control executable in real time.

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