Development of Analytical Techniques for Assessing the Numerical Stability of Multi-rate Electromagnetic Transient (EMT) Simulations

Electromagnetic transient (EMT) simulations are often used nowadays for analyzing the transient behaviour of power systems. However, due to the large size and complexity of modern-day power networks, simulating them in EMT programs can become excessively slow. Multi-rate simulation is one of the effective ways of speeding up EMT simulations. In this approach, only critical subnetworks of a system are simulated with small time-steps while relatively large time-steps are used for simulating the remaining (non-critical) parts. In the current literature, multi-rate simulation methods have been primarily investigated for their superior computational properties compared to the traditional single fixed time-step approaches. However, the numerical stability properties of such methods have not been effectively investigated. This research aims to address this gap by developing analytical techniques for assessing the numerical stability of multi-rate methods used in EMT simulations.

Faculty Supervisor:

Aniruddha M. Gole

Student:

Partner:

Manitoba Hydro International Ltd

Discipline:

Engineering

Sector:

Professional, scientific and technical services; Utilities

University:

University of Manitoba

Program: