Modeling and control of a cascade multilevel inverter for power conditioning applications

Author(s)

Guillardi Junior, Hildo ; Pomilio, Jose Antenor ; Buso, Simone ; Rossetto, Leopoldo ; IEEE

• Document type: Journal article
• Source: 2016 IEEE 2ND ANNUAL SOUTHERN POWER ELECTRONICS CONFERENCE (SPEC); v. N/A, p. 6-pg., 2016-01-01.

Abstract

The paper presents the procedure to derive a small signal dynamic model of the DC link capacitor voltages in a cascaded multilevel inverter (CMI). The model allows to quantitatively design a closed loop, linear, multi-input multioutput (MIMO) controller for the DC link voltages. Differently from many previously presented controllers, the one discussed in this paper is able to achieve a predefined speed of response and damping, minimizing, at the same time, the cross-coupling among the different voltage regulators. The effectiveness of the solution is proven by means of small signal analysis, simulation and experimental tests on a prototype converter. (AU)

• FAPESP's process: 15/02325-0 - Electric power conditioning applied in more electric aircraft context
• Grantee: Hildo Guillardi Júnior
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 14/11720-7 - Electric power conditioning applied in more electric aircraft context
• Grantee: Hildo Guillardi Júnior
• Support Opportunities: Scholarships in Brazil - Doctorate