Title :
Synchronization Algorithms for Co-simulation of Power Grid and Communication Networks
Author :
Ciraci, Selim ; Daily, Jeff ; Agarwal, Khushbu ; Fuller, Jason ; Marinovici, Laurentiu ; Fisher, Andrew
Author_Institution :
Pacific Northwest Nat. Lab., Richland, WA, USA
Abstract :
The ongoing modernization of power grids consists of integrating them with communication networks in order to achieve robust and resilient control of grid operations. To understand the operation of the new smart grid, one approach is to use simulation software. Unfortunately, current power grid simulators at best utilize inadequate approximations to simulate communication networks, if at all. Cooperative simulation of specialized power grid and communication network simulators promises to more accurately reproduce the interactions of real smart grid deployments. However, co-simulation is a challenging problem. A co-simulation must manage the exchange of information, including the synchronization of simulator clocks, between all simulators while maintaining adequate computational performance. This paper describes two new conservative algorithms for reducing the overhead of time synchronization, namely Active Set Conservative and Reactive Conservative. We provide a detailed analysis of their performance characteristics with respect to the current state of the art including both conservative and optimistic synchronization algorithms. In addition, we provide guidelines for selecting the appropriate synchronization algorithm based on the requirements of the co-simulation. The newly proposed algorithms are shown to achieve as much as 14% and 63% improvement in performance, respectively, over the existing conservative algorithm.
Keywords :
power system control; smart power grids; synchronisation; telecommunication networks; active set conservative; communication network; conservative algorithm; cooperative simulation; information exchange; power grid; reactive conservative; resilient control; smart grid deployment; time synchronization overhead reduction; Algorithm design and analysis; Communication networks; Computational modeling; Heuristic algorithms; Smart grids; Synchronization; co-simulation; smart grid; synchronization algorithms;
Conference_Titel :
Modelling, Analysis & Simulation of Computer and Telecommunication Systems (MASCOTS), 2014 IEEE 22nd International Symposium on
Conference_Location :
Paris
DOI :
10.1109/MASCOTS.2014.51