Accelerated optimal maintenance scheduling for generation units on a truthful platform

Accelerated optimal maintenance scheduling for generation units on a truthful platform

Fu, J. (TU Delft Team Bart De Schutter)
Nunez, Alfredo (TU Delft Railway Engineering)
De Schutter, B.H.K. (TU Delft Team Bart De Schutter)

2022

Maintenance of generation units is a measure to ensure the reliability of power systems. In this paper, a novel blockchain-based truthful condition-based maintenance of generation units (T-CBMGU) platform is proposed to innovate and upgrade state-of-the-art CBMGU. In addition, two valid inequalities are proposed to accelerate the convergence speed of Benders decomposition in maintenance scheduling process. The proposed valid inequalities are formulated based on technical/physical analysis and greedy-based heuristic initialization. More specifically, for data acquisition and failure rate diagnosis/prognosis processes, T-CBMGU can ensure the immutability of the collected operational data. In this way, the influence of tampered data on the diagnosis/prognosis results in state-of-the-art CBMGU can be reduced. For maintenance scheduling and bidding to change scheduled time slot processes, in state-of-the-art CBMGU, the decision makers, i.e., independent system operators (ISOs), may not be trusted. However, in T-CBMGU, the scheduling and bidding processes are implemented automatically via smart contracts rather than by the ISOs; as such, incentives to manipulate data can be avoided. Finally, regarding performance of maintenance actions, in contrast to state-of-the-art CBMGU, the implementation process can be truthfully recorded by the T-CBMGU platform, which facilitates backtracking of responsibility. Then, the T-CBMGU platform and the valid inequalities are tested for the IEEE 300-bus power system. Furthermore, cases with tampered data and distrust caused by fairness manipulation are simulated to show the importance of using T-CBMGU. Finally, the Benders decomposition algorithm with valid inequalities is compared with other solvers to demonstrate its fast convergence speed.

Benders decomposition
Maintenance of generation units
Truthful maintenance platform
Valid inequality

http://resolver.tudelft.nl/uuid:8b792eee-26c1-4b8e-963b-de211005773d

https://doi.org/10.1016/j.egyr.2022.08.002

2352-4847

Energy Reports, 8, 9777-9786

Institutional Repository

journal article

© 2022 J. Fu, Alfredo Nunez, B.H.K. De Schutter