© The Institution of Engineering and Technology
A model predictive current control scheme with dc-link capacitor voltages fluctuation suppression for the four-switch three-phase rectifier (FSTPR) in balanced grids is presented. The proposed control scheme is a type of the finite-control-set model predictive control scheme and is based on the discrete-time model of the system. From this model, the values of input currents and dc-link capacitor voltages are predicted for all switching states of the FSTPR. On the basis of a predefined cost function, the switching state, which minimises the errors between input currents and their references as well as the difference between two dc-link capacitor voltages at the next sampling instant, is selected. Simulation results are presented to confirm the effectiveness of the proposed control scheme.
References
-
-
1)
-
1. Gi-Taek, K., Lipo, T.A.: ‘VSI-PWM rectifier/inverter system with a reduced switch count’, IEEE Trans. Ind. Appl., 1996, 32, (6), pp. 1331–1337 (doi: 10.1109/28.556635).
-
2)
-
5. Rodriguez, J., Cortes, P.: ‘Predictive control of power converters and electrical drives’ (Wiley-IEEE Press, New York, 2012).
-
3)
-
4. Liu, Y.C., Ge, X.L., Zhang, J., et al: ‘General SVPWM strategy for three different four-switch three-phase inverters’, Electron. Lett., 2015, 51, (4), pp. 357–359, (doi: 10.1049/el.2014.4397).
-
4)
-
3. Freire, N.M.A., Cardoso, A.J.M.: ‘A fault-tolerant PMSG drive for wind turbine applications with minimal increase of the hardware requirements’, Trans. Ind. Appl., 2014, 50, (3), pp. 2039–2049 (doi: 10.1109/TIA.2013.2282935).
-
5)
-
4. Zeng, Z., Zheng, W., Zhao, R., et al: ‘Modeling, modulation, and control of the three-phase four-switch PWM rectifier under balanced voltage’, Trans. Power Electron., 2016, 31, (7), pp. 4892–4905.
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2016.3694
Related content
content/journals/10.1049/el.2016.3694
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Model predictive current control for four-switch three-phase rectifiers in balanced grids