TITLE:
PI and RST Control Design and Comparison for Matrix Converters Using Venturini Modulation Strategy
AUTHORS:
Bekhada Hamane, Mamadou Lamine Doumbia, Hicham Chaoui, Mohamed Bouhamida, Ahmed Chériti, Mustapha Benghanem
KEYWORDS:
Matrix Converter, Unbalanced Grid, Venturini Modulation Strategy, PI Control, RST Control
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.3 No.8,
August
10,
2015
ABSTRACT: This paper presents a thorough design and comparative study of two popular control techniques, i.e., classical Proportional Integral (PI) and RST, for Matrix Converters (MCs) in terms of tracking
the reference and robustness. The output signal of MCs is directly affected by unbalanced grid
voltage. Some research works have attempted to overcome this problem with PI control. However,
this technique is known to offer lower performance when it is used in complex and nonlinear systems.
On the other hand, RST control offers better performance, even in case of highly nonlinear
systems. Therefore, the RST can achieve better performance to overcome the limitation of PI control
of nonlinear systems. In this paper, a RST control method is proposed as output current controller to
improve the performance of the MC powered by unbalanced grid voltage. The overall operating
principle, Venturini modulation strategy of MC, PI control and characteristics of RST are presented.