Motorization of large compressors in the chemical, oil and gas industries is now a necessity for energy savings and environmental sustainability. Traditionally the fundamental operating frequency of MV electric motors has been limited to the line frequency of 60 Hz. MV motors operating beyond 200 Hz are seldom reported and are considered at low technology readiness level (TRL).

DOE says that a window of opportunity has emerged for the US to lead the effort by integrating medium voltage (MV) class motors with emerging wide bandgap (WBG) technology based variable speed drives (VSDs) that will transform this particular energy sector and provide the ultimate solution for the chemical, oil and gas industry. WBG devices offer higher switching frequencies and junction temperatures, as well as inherent higher voltage capabilities.

Specifically, this upcoming FOA will facilitate efforts to integrate MV class WBG devices with megawatt (MW) range high speed motors and demonstrate significant reductions in the volume and weight of the integrated system by utilizing their higher switching frequencies and junction temperatures, as well as the inherent higher voltage capabilities of WBG devices.

The goal of this FOA is to fund projects that will establish avenues to demonstrate the integration of WBG devices with next generation high rpm, high electrical frequency motors, and to reduce issues relating to their reliability, thereby accelerating the deployment and adoption of this integrated technology.