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Mitigation of Negative Impedance Instabilities in Dc Distribution Systems : A Sliding Mode Control

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This book focuses on the mitigation of the destabilizing effects introduced by constant power loads (CPLs) in various non-isolated DC/DC converters and island DC microgrids using a robust non-linear sliding mode control (SMC) approach. This book validates theoretical concepts using real-time simulation studies and hardware implementations. Novel sliding mode controllers are proposed to mitigate negative impedance instabilities in DC/DC boost, buck, buck-boost, bidirectional buck-boost converters, and islanded DC microgrids. In each case, the condition for the large-signal stability of the converter feeding a CPL is established. An SMC-based nonlinear control scheme for an islanded DC microgrid feeding CPL dominated load is proposed so as to mitigate the destabilizing effect of CPL and to ensure system stability under various operating conditions. A limit on CPL power is also established to ensure system stability. For all proposed solutions, simulation studies and hardware implementations are provided to validate the effectiveness of the proposed sliding mode controllers.

Genre: Technology, Science
Series Title: Springerbriefs in Applied Sciences and Technology
Format: Paperback
Publisher: Springer Verlag
Author: Deepak Kumar Fulwani & Suresh Singh
Language: English
Street Date: October 12, 2016
TCIN: 51760052
UPC: 9789811020704
Item Number (DPCI): 248-32-1686

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