This is not only bringing about changes in the transmission infrastructure itself but also the way it is operated, necessitating more intelligent management of supply and demand. This requires sophisticated monitoring, communication and control systems across the power value chain of generation, transmission, distribution, storage and consumption and calls for a smarter power system that makes greater use of digital technologies. Digital substations will play a key role in the power system of the future. They will incorporate digital communications via fiber optic cables, replacing traditional copper connections using analog signals.
They will also enable greater flexibility, availability and safety, while reducing cost, risk and environmental impact. Digital substations will also feature Intelligent Electronic Devices (IEDs) with integrated information and communication technology. An IED is a microprocessor-based protection and control device for power equipment, such as circuit breakers, transformers and capacitor banks.
The increasing amounts of data available in a digital substation will also enable more sophisticated monitoring, diagnostics, protection and optimization of assets. “Digital substations are a key component in shaping the evolving grid and ABB’s latest technology offering in this area will enable customers to optimize their operations” said Claudio Facchin, President of ABB’s Power Grids division. “Facilitating grid automation and the convergence of information and operational technologies are an integral part of our Next Level strategy and ABB’s Internet of Things, Services and People approach.”