A parallel processing approach to dynamic simulations of combined transmission and distribution systems

Abstract

Abstract-Simulating a power system with both transmission and distribution networks modeled in detail is a huge computational challenge. In this paper, we propose a Schurcomplement-based domain decomposition algorithm to provide accurate, detailed dynamic simulations of the combined system. The simulation procedure is accelerated with the use of parallel programming techniques, taking advantage of the parallelization opportunities inherent in domain decomposition algorithms. The proposed algorithm is general, portable and scalable on inexpensive, shared-memory, multi-core machines. A large-scale test system is used for its performance evaluation.

Values and impacts of incorporating local flexibility services in transmission expansion planning

“…However, this has been left for future work. Note that it is common practice in studies modeling both transmission and distribution networks to use test systems at least for one network level e.g., [18]. A real-world case study would need detailed data of a real transmission grid and all its downstream connected networks.…”

A Review of High-Performance Computing and Parallel Techniques Applied to Power Systems Optimization

“…In an impactful series of work, P. Aristidou et al implemented a parallel dynamic simulation on a transmissiondistribution network using the Very Dishonest Newtons Method (VDHN) and Schur-Complement based decomposition in 2014 [252] 2015 [253] and 2016 [254]. Their most significant test case included 15226 buses, 21765 branches, and detailed 3483 generator models, including their excitation systems and governors, voltage regulators, and power system stabilizers.…”

A Dynamic Equivalent of Active Distribution Network: Derivation, Update, Validation and Use Cases

“…A research track followed by some authors is the combined simulation of Transmission and Distribution Systems [5], [6], [7]. However, collecting the whole set of data and matching the operating point of concern is a heavy burden for a TSO.…”