Electric Systems For High Power Compressor Trains In Oil And Gas Applications - System Design, Validation Approach, And Performances.

Abstract

This paper presents the development process for a new variable frequency drive (VFD) system for large size compressor trains for natural gas and liquefied natural gas (LNG) applications. The paper covers the multiple steps of the product development process, from identification of applications requirements, definition of design constraints and targets, generation of the product concept, selection of the switching component, topology and system configuration,and the validation strategy. The paper will discuss the test rig setup and the results of the test campaign for the 35 MW VFD prototype. It will also provide a comparative overview of the different technical solutions available on the market and explain how the technology presented better accommodates the challenges of specific process applications. Finally, the potential evolution of the developed technology to higher power levels will be illustrated.