一种大功率工业整流系统管、变协同控制方法

通常大功率整流系统的调压装置和整流器均采取各自单独调节的控制方案,基本不考虑二者的协调控制,从而导致整流系统输出调整发生振荡,稳定性差。文章从晶闸管和调压变压器协同控制的角度,建立了管(晶闸管)、变(调压变压器)解耦模型,提出了结合专家仲裁的模糊自适应协同混合算法,系统动态调整过程对管、变实施分时控制,能较好地兼顾调整效率和电能质量指标;以新型的感应滤波工业整流系统为测试对象,给出了所述协同控制的设计过程和用于有效性验证的仿真及实验结果。

A Cooperative Control Method between OLTC and Thyristors for High Power Industrial Rectifier System

In general on-load tap changer （OLTC） device and rectifier of high-power rectifier system are adjusted respectively regardless of cooperative control, which will result in oscillation during output adjustment of the rectifier system and lead to poor stability. In order to realize cooperative control between OLTC and thyristors, a decouple control model was established, and then a cooperative hybrid control algorithm, combining expert arbitration strategy and fuzzy adaptive control, was designed. In addition, a time-shared control was implemented during dynamic adjustment of the system to guarantee adjustment efficiency and power quality. Moreover, taking a new industrial rectifier system with inductive filtering as a test object, the design process of the mentioned cooperative control was presented and the simulation and experimental results were shown for verifying correctness.