Control of DC/DC Buck–Parallel Converter Implemented in FPGA ; Control del Convertidor CD/CD Reductor–Paralelo Implementado en FPGA
309 316 15 3 ; OJS ; [EN] This paper documents the design and implementation of a controller for DC/DC Buck–Parallel Converter under the perspective of differential flatness and active disturbance rejection control approach based on GPI extended state observer. The main objectives of the proposed controller are to regulate the output voltage and a balance of currents for parallel converters. The hardware architecture of this controller was modelled using tools with a high level of hardware abstraction and implemented in a FPGA Artix-7 of the Xilinx Company. Finally, the performance of the proposed controller is shown through a series of experiments that consisted of subjecting the converter to various external, unknown and variant over time disturbances, and changes in system parameters. Cid-Pastor, A., Martìnez-Salamero, L., Alonso, C., Leyva, R., Singer S., 2007, Paralleling DC-DC switching converters by means of power gyrators, IEEE transactions on power electronics, no. 6, vol. 22, 2444-2453. Jaber, A., Qahouq, A., y Huang, L., 2008, N-phase sensorless current sharing digital controller, Power Electronics Specialist Conference, 1257-1262. Kailath, T., 1980, Linear Systems, Prentice-Hall Information. Lévine, J., Analysis and Control of Nonlinear Systems: A Flatness-based Approach, Springer Science & Business Media. Li, S., Yang, J., Chen, W.-H., Chen, X., 2014, Disturbance Observer-Based Control: Methods and Applications, CRC Press Taylor Francis. Linares-Flores, J., Barahona-Avalos, J.L., Sira-Ramírez, H. y Contreras-Ordaz, M.A., 2012, Robust Passivity-Based Control of a Buck-Boost-Converter/DC-Motor System: An Active Disturbance Rejection Approach, IEEE Transactions on Industry Applications, no. 6, vol. 48, 2362-2371. Qiao, L. y Jie, W., 2005, Implementation of a New Nonlinear Controller for DC-DC Converter Using Matlab and DSPACE DSP, IEEE ISIE, Dubrovnik, Croacia, 621-626. Sarvi, M., Derakhshan, M., Sedighizadeh, M., 2014, A new intelligent controller for parallel DC/DC converters, International ...