A Integrated Protection Strategy for High Voltage Variable Frequency Speed Regulation System

TitleA Integrated Protection Strategy for High Voltage Variable Frequency Speed Regulation System
Publication TypeConference Paper
Year of Publication2009
AuthorsXiongQing, Zhang Z
Conference NameProceedings of the 44th International Universities Power Engineering Conference
Date PublishedSeptember
Conference LocationUniversity of Strathclyde
KeywordsElectrical Machines and Drives Power electronics at a system level
Abstract

Because of the complicated topology and operation process of high voltage variable frequency speed regulation system, the internal fault and abnormal condition were miscellaneous. Meanwhile, the original protection of large induction motor was not suitable under the variable frequency driving situation. Therefore, it is very necessary to design an comprehensive and systematic protection strategy for the speed regulation system. At first, this paper analyzed the features of internal fault and abnormal conditions. Based on the analysis, the paper designed an integrated protection strategy, which considerate to the accuracy and rapidity, to protect those faults. Through the dynamic simulation, the paper verified the accuracy and efficiency of the protection strategy.