NDLI: Using the sliding-mode control approach for analysis and design of the boost inverter

Content Provider	IET Digital Library
Author	Bahamonde, Freddy Flores Blavi, Hugo Valderrama Moncusi, Josep Maria Bosque García, Germain Salamero, Luis Martínez
Abstract	A cascade control strategy is employed in the boost inverter to generate a sinusoidal signal at grid frequency with very low distortion. The internal loop of the cascade employs a switching surface based on the difference of the inductor currents to induce sliding motions in the power stage. The outer loop in turn establishes the reference of the internal loop and ensures the tracking of an external sinusoidal signal at 50 Hz. The reported approach is analytical and is based on the equivalent control method. The root locus of the capacitor voltages at the equilibrium point of the inner loop is obtained assuming a constant value of the loop reference. In the particular case of a zero reference, sinusoidal variations at grid frequency are superposed to the corresponding equilibrium point and the resulting ideal dynamics are linearised yielding the control to output transfer function of the system. A proportional-integral (PI) compensator is designed for both large bandwidth and small phase error. Experimental results in a 500 W prototype are in perfect agreement with the analytical predictions.
Starting Page	1625
Ending Page	1634
Page Count	10
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 8, Jun (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0608
Journal	IET Power Electronics
Publisher Date	2016-06-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analytical Predictions Boost Inverter Capacitor Voltage Cascade Control Cascade Control Strategy Compensation Control System Analysis Control System Synthesis Equilibrium Point Equivalent Control Method External Sinusoidal Signal Grid Frequency Internal Loop Invertors Loop Reference Multivariable Control System PI Compensator PI Control Power 500 W Power Electronics Power Stage Power Supply Root Loci Root Locus Sinusoidal Variations Sliding-mode Control Approach Supervisory Circuit Synthesis Method Transfer Function Variable Structure System Zero Reference
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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