Congresos

Abstract:

Electric energy is usually generated through power stations (hydroelectric, gas, coil, nuclear) interconnected to ensure the power supply; but in the last years a massive number of renewable energy resources have been integrated in the electric grid helping to fulfill the power demand. Nevertheless, the interconnection of multiple generation along the distribution system affects the power quality in medium and low voltage grids (MVAC, LVAC respectively). A solution for this is the incorporation of power quality compensators to the MVAC-LVAC coupling transformers; known as Solid-State Transformer (SST) substituting the conventional transformer and adding power quality compensation features. This paper presents a modular multilevel converter based on SST for the coupling of a low voltage grid (127 Vrms) to a medium voltage distribution system at 3.6 kV, with harmonic filtering capabilities.

Date of Conference: 22-25 March 2017
Date Added to IEEE Xplore: 04 May 2017
ISBN Information:
INSPEC Accession Number: 16854312
Publisher: IEEE
Conference Location: Toronto, ON, Canada

Abstract:

This paper proposes a suitable digital platform based on the Xilinx Zynq®-7000 family to process the functions performed by a smart-solid-state-transformer (3ST) in smart grids (SG) application. These functions include: link to information and communication technologies (ICT), voltage transformation, integration of distributed renewable energy resources (DRER) and distributed energy storage devices (DESD). The Zynq platform embeds a double-core ARM® Cortex™-A9 processor and Field Programmable Gates Array (FPGA) technology, all within a programmable system on a chip (SoC). The main advantages of this technology are modularity, scalability, quick and easy maintenance and low-costs. Experimental results are included to show some capabilities of the proposed platform in a 3ST laboratory test-bed.

Date of Conference: 30 Nov.-2 Dec. 2016
Date Added to IEEE Xplore: 16 February 2017
ISBN Information:
INSPEC Accession Number: 16674138
Publisher: IEEE
Conference Location: Cancun, Mexico

Abstract:

This paper presents an implementation technique of a high resolution Unipolar Pulse Width Modulator (UPWM) for power inverter applications. Unipolar switched inverter has the advantage of a higher efficiency and lower harmonic distortion. The technique was tested in a 2kW inverter with a typical LC filter and it was achieved a Total Harmonic Distortion below 2%. Simulations and experimental results were performed. The technique was developed with the Xilinx System Generator in MATLAB/Simulink and it was implemented on a System on Chip XC70Z020CLG484-1 Zynq device.

Date of Conference: 20-22 Oct. 2016
Date Added to IEEE Xplore: 01 December 2016
ISBN Information:
INSPEC Accession Number: 16506338
Publisher: IEEE
Conference Location: Hermosillo, Mexico