Corrective Control With Transient Assistive Measures: Value Assessment for Great Britain Transmission System

Power system stability in the transition to a low carbon grid: A techno‐economic perspective on challenges and opportunities

“…There are various FNT that are opening up new avenues for network operators and planners, allowing them to take a more active approach toward providing stability services by using corrective, real‐time control and thus to integrate additional volumes of renewables in a secure manner. FNT approaches that are becoming increasingly important include: (i) new controllable and flexible technologies, such as flexible AC transmission systems (FACTS) (Pipelzadeh et al, 2017) and high‐voltage DC (HVDC) systems (Y. Chen et al, 2018; Junyent‐Ferr et al, 2015), that can rapidly control power flows across the network pre‐ and post‐contingency; (ii) system integrity protection schemes (SIPS) that can enforce rapid increase/reduction of power in importing/exporting areas after an outage occurs by, for instance, curtailing generation and/or demand through suitable “inter‐trip” schemes (Moreno et al, 2013); and (iii) various wide‐area monitoring and control equipment supported by ICT technologies that will increase the capability of system operators to monitor and control electricity assets in real time and across wider areas through advanced and pervasive ICT (Moreno et al, 2017). These approaches, coordinated with generation real‐time (re)dispatches, allow delivery of ancillary services (e.g., response and reserve services) to be more cost‐effective and secure, without worsening post‐contingency congestion, voltage problems and instabilities (e.g., transient stability issues).…”

Multi-Objective Optimal Sizing of Shunt Braking Resistor for Transient State Improvement

“…A two-stage optimization process has been proposed, which includes: (1) Severe disturbances, such as three-phase short-circuits near the power plant pose a high risk, as the loss of stability can lead to generators tripping and loss of power balance in the electric power system [7]. To reduce the risk of power system instability, various corrective measures are used, including dynamic braking [8], [9]. This paper focuses on using dynamic braking to improve transient stability taking also into account the effect of braking on various aspects of power system operation.…”