Resonant control for multi-cell cascaded H-Bridge topologies based on current source inverters

Single-phase inverters have gained important acceptance last time. This is because single phase inverters have been used in renewable energy, ac drives and many other applications and controlled by name ways as linear, nonlinear predictive between others. This paper studied the control of a Single-Phase Current Source Inverter (SP-CSI) for multi-cell and three-phase applications. Cascaded H-Bridge (CHB-CSI) topology is formed by the stack of SP-CSI, with all advantages that CHB implies, as modularity and commutation noise reduction. However the control for single-phase systems cannot be achieved by Park Transformation if the current load or the current source are unbalanced. Therefore, this work proposed the Proportional Resonant Control (PRC) for the CHB based on CSIs, where the control study is formulated in continuous as well as discrete time. To complete this study a stability analysis is accomplished showing the feasibility of this control for CSI. Finally, simulation results are shown in order to corroborate the mathematical and theoretical analysis.

[1]  Marco Rivera,et al.  Current-source cascaded multilevel converters based on single-phase power cells , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[2]  J. Espinoza,et al.  Predictive current control in a current source inverter operating with low switching frequency , 2013, 4th International Conference on Power Engineering, Energy and Electrical Drives.

[3]  Carlos R. Baier,et al.  On the DC inductors size reduction in a multi-cell topology based on current source converters by means of magnetic couplings , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[4]  J. Espinoza,et al.  Static power converter synchronization and control under varying frequency conditions , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[5]  L. A. Moran,et al.  Improved control scheme towards reduced DC link inductors in a Multi-Cell Topology based on Current Source Converters , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[6]  Javier Munoz,et al.  A novel multi-level CSI based topology with inter-cell magnetic couplings for minimum DC storage components , 2010, 2010 IEEE International Symposium on Industrial Electronics.

[7]  Mariusz Malinowski,et al.  A Survey on Cascaded Multilevel Inverters , 2010, IEEE Transactions on Industrial Electronics.

[8]  J.R. Espinoza,et al.  A novel multi-level converter based on current source power cell , 2008, 2008 IEEE Power Electronics Specialists Conference.

[9]  Jaime A. Rohten,et al.  Discrete Nonlinear Control based on a double dq Transform of a Multi-Cell UPQC , 2011, IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society.

[10]  Javier Muñoz,et al.  A novel multi-level topology based on current source power cells for high performance applications , 2010, 2010 IEEE International Conference on Industrial Technology.

[11]  Luis Moran,et al.  A New Modulation Method for a 13-Level Asymmetric Inverter Toward Minimum THD , 2014, IEEE Transactions on Industry Applications.

[12]  Pedro Melin,et al.  Analysis and design of a Cascaded H-Bridge topology based on current-source inverters , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.