A DSP-based active disturbance rejection control design for a 1-kW H-bridge DC-DC power converter
Bosheng Sun
Zhiqiang Gao
Dept. of Electr. & Comput. Eng., Cleveland State Univ., OH, USA;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct. 2005
Volume: 52,
Issue: 5
On page(s): 1271- 1277
ISSN: 0278-0046
INSPEC Accession Number: 8590520
Digital Object Identifier: 10.1109/TIE.2005.855679
Current Version Published: 2005-09-26
Abstract
This paper presents the design and implementation of an advanced digital controller for a 1-kW H-bridge dc-dc power converter. A new control algorithm based on the active disturbance rejection concept is developed to cope with the highly nonlinear dynamics of the converter and the disturbances. An experimental digital control system is used to implement the new control strategy. It consists of a digital control board based on the TMS320C6711 digital signal processor chip, an analogy I/O board, and a complex programmable logic device pulsewidth-modulation generation board. Using a newly developed bandwidth-parametrization technique, an autotuning method based on noise quantification is also developed and tested. Experimental results show the advantages and flexibilities of the new control method for the H-bridge dc-dc power converter.
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