Designing centralised and distributed system integrity protection schemes for enhanced electric grid resiliency. Issue 8 (28th March 2019)

• Record Type: Journal Article
• Authors: Ravikumar, Krishnanjan Gubba; Srivastava, Anurag K.
• Is Part Of: IET generation, transmission & distribution. Volume 13:Issue 8(2019)
• Page Start: 1194
• Page End: 1203
• Publication Date: 2019-03-28
• Subjects: power system protection -- power system reliability -- power grids -- power system measurement -- power system faults -- substations -- load flow -- power system dynamic stability -- wind power plants; distributed system integrity protection schemes -- enhanced electric grid resiliency -- power system stability -- distribution networks -- remedial action schemes -- emergency control systems -- special protection systems -- wide‐area control schemes -- typical SIPSs -- reliable power system responses -- transmission outages -- regional transmission bottlenecks -- distributed computing architecture -- control types -- next‐generation SIPSs -- transmission overload condition -- excessive wind generation -- synchrophasors -- real‐time technology -- field installation; Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/iet-gtd.2018.5381
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract : System integrity protection schemes (SIPSs) are installed at substations to preserve power system stability by preventing bottlenecks in transmission and distribution networks and improving the overall reliability. SIPSs are also referred to as remedial action schemes, emergency control systems, special protection systems, and wide‐area control schemes. Typical SIPSs have centralised computing architectures with applications to ensure reliable power system responses during transmission outages, remediate regional transmission bottlenecks caused by delays in the construction of new lines, prevent severe instability and blackouts due to faults and inadvertent disconnections, prevent line damage resulting from thermal limits, avoid voltage collapse, and protect against other critical events in the power system. This study proposes a distributed computing architecture for SIPSs, including algorithms that use DC and AC optimal power flow. The authors classify SIPS applications based on control types and propose novel algorithms for next‐generation SIPSs using synchrophasors and real‐time technology. The authors also propose testing requirements and architectures for validating SIPSs prior to field installation. Lastly, the authors share results obtained using the proposed SIPS for a transmission overload condition caused by excessive wind generation.