Modeling and Direct Power Control Method of Vienna Rectifiers Using the Sliding Mode Control Approach


Vol. 15, No. 1, pp. 190-201, Jan. 2015
10.6113/JPE.2015.15.1.190


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 Abstract

This paper uses the switching function approach to present a simple state model of the Vienna-type rectifier. The approachintroduces the relationship between the DC-link neutral point voltage and the AC side phase currents. A novel direct powercontrol (DPC) strategy, which is based on the sliding mode control (SMC) for Vienna I rectifiers, is developed using theproposed power model in the stationary a -b reference frames. The SMC-based DPC methodology directly regulatesinstantaneous active and reactive powers without transforming to a synchronous rotating coordinate reference frame or a trackingphase angle of grid voltage. Moreover, the required rectifier control voltages are directly calculated by utilizing the non-linearSMC scheme. Theoretically, active and reactive power flows are controlled without ripple or cross coupling. Furthermore, thefixed-switching frequency is obtained by employing the simplified space vector modulation (SVM). SVM solves the complicateddesigning problem of the AC harmonic filter. The simplified SVM is based on the simplification of the space vector diagram of athree-level converter into that of a two-level converter. The dwelling time calculation and switching sequence selection are easilyimplemented like those in the conventional two-level rectifier. Replacing the current control loops with power control loopssimplifies the system design and enhances the transient performance. The simulation models in MATLAB/Simulink and thedigital signal processor-controlled 1.5 kW Vienna-type rectifier are used to verify the fast responses and robustness of theproposed control scheme.


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Cite this article

[IEEE Style]

H. Ma, Y. Xie, B. Sun and L. Mo, "Modeling and Direct Power Control Method of Vienna Rectifiers Using the Sliding Mode Control Approach," Journal of Power Electronics, vol. 15, no. 1, pp. 190-201, 2015. DOI: 10.6113/JPE.2015.15.1.190.

[ACM Style]

Hui Ma, Yunxiang Xie, Biaoguang Sun, and Lingjun Mo. 2015. Modeling and Direct Power Control Method of Vienna Rectifiers Using the Sliding Mode Control Approach. Journal of Power Electronics, 15, 1, (2015), 190-201. DOI: 10.6113/JPE.2015.15.1.190.