Microprocessor-based watching control system for improved ladder-type rectifier

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Ivanov, V.V.^1 ; Myatezh, S.V.^1 ; Kapustin, A.V.^1 ; Alekseeva, I.K.^1

Novosibirsk State Technical University, 20, Karla Marksa Ave., Novosibirsk

630073, Russia^1

关键词: Block diagrams;    Control program;    Energy efficient;    Galvanic isolation;    Microprocessor control system;    Software model;    System algorithm;    System operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012107/pdf
DOI  :  10.1088/1757-899X/560/1/012107

来源: IOP

【 摘 要 】

Currently, the most energy-efficient device designed to convert AC to DC is a zone converter built on the basis of controlled power semiconductor devices: thyristors and transistors. The basis of these converters work is the zone-phase regulation method. The paper discusses the construction of a microprocessor control system for improved four-zone rectifier. The tasks aimed at energy efficiency achievement have been set and solved, the relevance of the tasks is justified. The microprocessor control system development stages including the drivers creation with galvanic isolation for thyristors and transistors control and greed synchronization are shown. Justification and choice of feedback are produced. The control algorithm for power semiconductor devices incorporated in the control program is given. For better understanding of the system operation principle, a block diagram which is based on a program written for the microcontroller is given. That program reflects the control system algorithm. Software modeling of the proposed system is carried out, the modeling results are presented.