|Table of Contents|

 Control of single-phase Buck inverter by improved
Lyapunov direct method
(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2014年07
Page:
18-23
Research Field:
Publishing date:

Info

Title:
 Control of single-phase Buck inverter by improved
Lyapunov direct method
Author(s):
 LU Wei-guo
Li An-xin
ZHAO Nai-kuan
HE Qi-chen
 State Key Laboratory of Power Transmission Equipment&System Security and New Technology
Chongqing University,Chongqing 400044,China
Keywords:
 single-phase inverter Lyapunov enemy functionstability control
integral reset circuit
PACS:
TM 46
DOI:
-
Abstract:
 Abstract:Regarding to the stability limitation of the traditional linear control, an improved nonlinear control strategy derived on Lyapunov direct method was proposed for the single phase Buck inverter. On the basis of the quasi steady state average model of the proposed system,a quadratic energy-like Lyapunov function was presented and as well as its control law,which a stable convergence of the proposed system. The duty cycle of the control equation was carried out by using integral reset circuit. Implementation of the proposed controller is simple. Moreover,the stability of the proposed system was verified in theory and system performace analysis was shown,including the model comparison results between the proposed system and the traditional PID control one. Finally,the experimental circuit was conducted. The proposed experiment results show the correctness of theoretical analysis and the feasibility of the proposed Lyapunov control scheme.

References:

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Last Update: 2015-07-18