期刊名称：International Journal of Mechatronics, Electrical and Computer Technology
印刷版ISSN：2305-0543
出版年度：2018
卷号：8
期号：30
页码：3975-3987
出版社：Austrian E-Journals of Universal Scientific Organization
摘要：This paper proposes a model predictive current control (MPCC) for a two-level three-phase
inverter with output LC filter connected to the grid by using a duty cycle Optimization by using
Forward Euler approximation. The prior control methods achieve good steady-state and dynamic
performance. To achieve much better steady state performance, in the prior model predictive current
control (MPCC), the discrete-time system model is used to check each of the 7 possible switching states
to choose a state that minimizes the cost function, which is related to the current errors. However, single
voltage vector employed in one control period is extremely limited to decrease the current ripples to a
minimum value. Hence, to obtain sufficient performance, the sampling frequency is necessary to choose
high. In order to resolve this issue, a duty ratio optimization technique has been performed by
designating one nonzero vector and the rest time for a zero vector during one control period. Simulation
verify that, compared to the prior method, the proposed method (The proposed MPCC) obtain much
better steady-state a reduced current ripples and total harmonic distortion(THD).
关键词：Model predictive current control; Duty cycle; Cost function; Voltage vector selection;
Three;phase Grid;Tied Inverter;
