Nonlinear Analysis of Interconnected Power Converters: A Case Study

被引：57

作者：

Benadero, Luis ^{[1
]}

Cristiano, Rony ^{[2
]}

Pagano, Daniel J. ^{[2
]}

Ponce, Enrique ^{[3
]}

机构：

[1] Tech Univ Catalonia, Dept Appl Phys, Barcelona 08034, Spain

[2] Univ Fed Santa Catarina, Dept Automat & Syst, BR-88040900 Florianopolis, SC, Brazil

[3] Univ Seville, Dept Appl Math, E-41012 Seville, Spain

来源：

IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS | 2015年 / 5卷 / 03期

关键词：

Bifurcations; boost converter; constant power load; DC microgrids; nonlinear analysis; sliding mode control; ELECTRONIC CONVERTERS; SYSTEMS;

D O I：

10.1109/JETCAS.2015.2462017

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper the nonlinear dynamics of interconnected power converters in an islanded direct current (DC) microgrid is analyzed. By using a simplified scheme based on two cascaded converters we analyze the dynamical behavior that can arise from the interconnection of these devices on a common DC bus. Furthermore, in order to address the bus voltage control problem, we propose a Sliding Mode Controller for a DC-DC bidirectional power converter to control the DC bus voltage under instantaneous constant power loads. This class of loads introduces a destabilizing nonlinear effect on the converter through an inverse voltage term that can lead to significant oscillations in the DC bus voltage. Simulation results are shown to illustrate the nonlinear analysis.

引用

页码：326 / 335

页数：10

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