|Table of Contents|

 Direct current control for nine-switch converter
(PDF)

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

Issue:
2018年11
Page:
105-113
Research Field:
Publishing date:

Info

Title:
 Direct current control for nine-switch converter
Author(s):
 PAN Lei WANG Kai ZHANG Jun-ru WANG Bei-bei YANG Zhao LI Mei
 ( School of Control and Mechanical Engineering,Tianjin Chengjian University,Tianjin 300384,China)
Keywords:
nine-switch converter equivalent circuit switching function current observer direct current control
PACS:
TM 74
DOI:
10.15938/j.emc.2018.11.014
Abstract:
 In view of the control problem of the nine-switch converter,a direct current control strategy for the nine switch converter was proposed. The constraint relation between the voltages of two capacitances in nine-switch converter and the switch state of the bridge arm switch device was clarified. Mathematical model in αβ coordinate system was built for nine-switch converter based on switching function method,and equal circuit for nine-switch converter was also been built in αβ coordinate system. By the equal circuit
of nine-switch converter,current observers were proposed for upper load and lower load of nine-switch converter,and improved integrator with saturated feedback was introduced to avoid the shortcomings of traditional integrators. Finally, the direct current control method,which only contains two voltage sensors,was built. In addition, the performance of the proposed direct current control method was verified by the simulation and experimental results.

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Last Update: 2018-12-10