Mitigation of the impact of supply disturbances in gas transmission systems

Development of gas transmission systems (GTSs) and diversification of gas suppliers requires continuous updates on the models of GTS as well as the modelling tools applied including solutions for risk and resilience analysis. The current work presents an algorithm for mitigation of consequences of disruptions in GTS from supply point of view. This objective is achieved by determination of the optimal response strategies consisting of a detailed coordination of load curtailment for consumer nodes and the use of reserve gas sources when necessary. The load curtailment is based on a consumer categorisation defined in the Latvian legal framework applied during energy crisis and implemented utilising penalty (cost) coefficients, optimisation and hydraulic steady-state simulations for verification of different solutions. The developed algorithm is capable to consider various changes in GTS, such as different demand rates and source capacities during the disruption or emergency by dividing the crisis event in time intervals. Another feature of the algorithm is an automatic update of the model to consider operation of multi-directional compressor stations. Finally, several capabilities of the developed algorithm are demonstrated in a case study using a model of a real GTS with comparisons between simplified and detailed modelling approaches. Results obtained by a case study applying the developed method can be used for an evaluation of GTS resilience considering both current and future network state.

ZALITIS Ivars;  DOLGICERS Aleksandrs;  ZEMITE Laila;  GANTER Sebastian;  KOPUSTINSKAS Vytis;  VAMANU Bogdan I.;  FINGER Joerg;  FUGGINI Clemente;  BODE Ilmars;  KOZADAJEVS Jevgenijs; 

2023-01-13

ELSEVIER BV

JRC129169

1874-5482 (online),   

https://www.sciencedirect.com/science/article/pii/S1874548222000531?via%3Dihub,    https://publications.jrc.ec.europa.eu/repository/handle/JRC129169,   

10.1016/j.ijcip.2022.100569 (online),