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Nonlinear Control And Simulation of
DC/DC Converter Based on
Energy-shaping Principle
Wei Tian Haisheng Yu
College of Automation Engineering College of Automation Engineering
Qingdao University Qingdao University
Qingdao, China,266071 Qingdao, China,266071
xjywl@
Abstract
A novel nonlinear energy-shaping and port-controlled Hamiltonian (PCH) systems method
is applied to regulate the output voltage of DC/DC converter. Based on the average dynamic
model of the Boost converter, the PCH mathematical model of DC/DC converter is
established. And based on the energy-shaping method of interconnection and damping
assignment, the feedback stabilization theory of DC/DC converter is given. The equilibrium
stability of the system is also verified. The simulation results show that the control law is
simple static state feedback and the control system has good dynamic performance.
Keywords: DC/DC converter energy-shaping port-controlled Hamiltonian systems
nonlinear control
1 Introduction
The problem of regulating the output voltage of switched power converters has attracted the attention of
many control researchers for several years now. Many different techniques have been used to address
the control problem. The traditional control methods include output feedback control, feedback
linearization, sliding model control and so on[1]. Although these control issues range from line
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