Description

Digital Real-Time Simulation for Power and Energy Systems Over the last few decades, power and energy systems have undergone an evolution that demands advanced system analysis and testing in order to ensure security and reliability. Modern digital real-time simulators are capable of performing highly detailed Electro-Magnetic Transient (EMT) type simulations of complex power and energy systems, where the system model is solved in discrete time with a chosen time-step using nodal analysis. At present, digital real-time simulation is one of the principal methods used for testing, validation, studies and research by utilities, manufacturers, educational and research institutions, and consultants the world over. Modern digital real-time simulators make use of advanced parallel processing hardware to execute simulations in “real-time” (10 seconds in the simulation is exactly 10 seconds in real-world time). Adherence to this so-called “real-time” constraint allows interfacing a multitude of external devices such as protection relays, controllers and other accessories to the simulator and, testing them in an integrated manner in hardware-in-the-loop (HIL) test setups. In this talk, firstly, an overview of the state-of-the-art digital real-time simulation for power and energy systems will be presented. Secondly, various applications of modern digital real-time simulators ranging from general to advanced applications will be discussed.