MotorDoc LLC continues to pursue unique research into industry and utility electrical and mechanical reliability. Present research projects include wind power, commercial/industrial ESA for transformers, ESA and related condition monitoring for solar, geothermal, and commercial/industrial systems. Studies relate to practical application research associated with high impact academic research. For more information contact us: Contact Us – EmpathCMS
Project: Wind Tower Reliability
Goal: Correlation of the relationship between transformer, generator, and gearbox degradation of DFIG/SFIG applications.
Theory: operating environment, controls, and transmission & distribution system cause electro-mechanical effects due to wind speed, control, and relationship between generator, transformer, and power conditioning equipment. SSCI, SSR, FR, inrush impacts. Signature components already identified.
Project: Solar PV Transformer Reliability
Goal: determine impact of solar inverters on step-up transformers using ESA methods.
Theory: design of solar transformers allow for unbalances and ferroresonance that generates localized heating and oil outgassing coupled with coil deformation. Signature components already identified.
Project: Unbalanced Magnetic Pull and Air Gap Measurement of Motors and Generators
Goal: determine ESA static/dynamic eccentricity and related values that provide a measurement of distance between the rotor and stator. Determine at which point the rotor would come into contact based upon dB values of static/dynamic eccentricity in voltage, current, and torque.
Theory: studies have been performed that identify methods to measure the physical airgap distance using current signature analysis. This can be done for electric machines and, with the addition of full ESA using both voltage and current, generators, as well.
