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Firing Angle Control of Thyristor Converter using PID Controller with Parallel Data Loop  

Lee, Jae-Sung (동영전기(주) 기술연구소)
Jang, Jin-Seok (동영전기(주) 기술연구소)
Choo, Young-Bae (거제대학 선박기술계열)
Lee, Dong-Hee (경성대 전기전자메카트로닉스)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.4, 2009 , pp. 278-284 More about this Journal
Abstract
This paper presents a firing angle controller of a thyristor converter for DC power supply using PID controller with parallel data loop to improve the dynamic response. The proposed parallel data loop for firing angle controller of 3-phase semi-converter, generates pre-measured firing angle according to reference voltage and load current. With the approximated firing angle according to operating conditions, the output voltage can fast keep the reference value with small voltage error. And the PID controller compensates the output voltage error from the firing angle of parallel data loop. In order to reduce the sudden changing of the data from current ripple, a simple digital low pass filter is used to determine the output data. The proposed control scheme is verified by the experimental test of a practical 50[A] grade thyristor converter system.
Keywords
Thyristor Converter; PID controller with Parallel data loop;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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