US 12,259,720 B2
Method and supervisory system for monitoring performance of a decision-making logic of a controller
Adamantios Marinakis, Fislisbach (CH); Yaman Cansin Evrenosoglu, Baden (CH); and Ioannis Lymperopoulos, Dietikon (CH)
Assigned to Hitachi Energy Ltd, Zürich (CH)
Filed by Hitachi Energy Ltd, Zürich (CH)
Filed on Aug. 12, 2021, as Appl. No. 17/401,146.
Claims priority of application No. 20191652 (EP), filed on Aug. 19, 2020.
Prior Publication US 2022/0057790 A1, Feb. 24, 2022
Int. Cl. G05B 23/02 (2006.01)
CPC G05B 23/0243 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method of monitoring performance of a decision-making logic of a controller of an electric power system, during field operation of the controller, the decision-making logic configured to determine an action to take in order to protect the electric power system, the method comprising:
during a design phase and prior to field operation, generating pre-operational data of the controller and/or a performance assessment logic, the performance assessment logic being generated using data generated in a computer-implemented process of creating the decision-making logic;
during a field operation phase that is subsequent to the design phase,
receiving operational data collected during field operation of the controller, and
performing an analysis of the operational data to determine whether a current performance of the decision-making logic, during the field operation, has deteriorated relative to a prior performance of the decision-making logic during simulations in the design phase, using the pre-operational data and/or the performance assessment logic; and
when determining that the current performance of the decision-making logic has deteriorated relative to the prior performance, initiating a redesign phase comprising an autonomous redesign and training of the decision-making logic using a different set of scenarios than were used during the simulations in the design phase.