Brew with the Crew: High-fidelity Modeling and Simulation of Hydrodynamic Torque Converter: Demonstrating Synchronous Generation from Variable Speed Prime Movers.

Join us for the upcoming technical talk —attend in person at Stockman’s Restaurant or virtually via (https://teams.microsoft.com/l/meetup-join/19%3ameeting_MGYxYTkzNmMtMzg0MS00MjdjLTkwYmMtOWNkMWMwNjMzOWFi%40thread.v2/0?context=%7b%22Tid%22%3a%224cf464b7-869a-4236-8da2-a98566485554%22%2c%22Oid%22%3a%2264d770c8-e8c2-4ef1-b2f4-1e7ebd03bd37%22%7d)
Title:
High-fidelity Modeling and Simulation of Hydrodynamic Torque Converter: Demonstrating Synchronous Generation from Variable Speed Prime Movers
Abstract:
The integration of inverter-based energy resources is increasingly replacing conventional synchronous generators in the bulk power system, impacting system inertia and deteriorating grid strength due to the limited over-current capability of power electronic converters. Hydrodynamic Torque Converter (HTC), a mechanical isolator that allows interfacing a variable speed prime mover with the grid through a synchronous generator, has the potential to mitigate these issues by mimicking the operation and grid impacts of conventional synchronous generators. In the context of wind power, Type-5 wind turbine uses HTC to isolate wind speed variations from the grid-connected generator, supporting synchronous operation. However, high-fidelity models of Type-5 wind turbine drivetrains are not widely available for grid integration and transient stability studies. Additionally, the limited deployment of Type- 5 turbines hinders the assessment of their contribution to bulk grid resilience. This talk will focus on modeling a Type-5 rated HTC, based on the automobile grade hydrodynamic converter physics, along with necessary geometry scaling and angular position biasing. The talk will also cover steady-state analysis driven initialization routine, hydraulic fluid flow control, and convective heating from torque limiting action. The developed model will further illustrate transient instability mitigations from step electric load changes and wind speed disturbances, thereby showcasing HTC’s grid synchronism ability, and potential for variable speed, in-stream hydropower, and hydrokinetic systems.
Speaker: S M Shaiful Alam
S M SHAFIUL ALAM (Senior Member, IEEE) received the B.S. and M.S. degrees in electrical and electronic engineering from Bangladesh University of Engineering and Technology, Dhaka, Bangladesh, in 2008 and 2011, respectively, and the Ph.D. degree in electrical engineering from Kansas State University, Manhattan, USA, in 2015. He is currently a Research Scientist with Idaho National Laboratory, USA, and the Power and Energy Systems Group, EES&T Directorate. His current research interests include reliable and sustainable integration of energy systems, especially the modeling and validation of the operation and control of hybrid energy systems through digital real-time simulation with hardware-in-the-loop testing. Additional information on his research activities is available through (https://scholar.google.com/citations?user=Sa5cNhwAAAAJ&hl=en).
Co-sponsored by: INL-Idaho National Lab
1175 Pier View Dr, Idaho Falls, Idaho, United States, 83402, Virtual: https://events.vtools.ieee.org/m/555405