TITLE:
FPGA Implementation of Predictive Hysteresis Current Control for Grid Connected VSI
AUTHORS:
Cristina Guzman, Kodjo Agbossou, Alben Cardenas
KEYWORDS:
Distributed Generation (DG); Interconnected Power Systems; Hysteresis Current Control (HCC); Field Programmable Gate Array (FPGA)
JOURNAL NAME:
Energy and Power Engineering,
Vol.6 No.2,
February
21,
2014
ABSTRACT:
Grid connected voltage source inverters (VSIs) are essential for the
integration of the distributed energy resources. Hysteresis current control
(HCC) is a commonly employed method for power control of VSIs. This control
method, in contrast with voltage control, provides good dynamics, good
stability and implicit over current protection. However, the most important
concern of digital implementation of HCC is related with the sampling period of
the measured currents. This paper presents a predictive hysteresis current
control (HCC) for grid connected voltage source inverter and its FPGA
implementation. Simulation and experimental results are provided to verify the
validity of the proposed implementation.