Open AccessHeuristic remedial actions in the reliability assessment of high voltage direct current networks
Author(s) -
Mario Alberto Gaviria Ríos,
Maria F. Perez
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v11i6.pp4622-4633
Subject(s) - remedial education , reliability (semiconductor) , grid , reliability engineering , computer science , high voltage direct current , remedial action , heuristic , voltage , network topology , direct current , electric power system , power (physics) , topology (electrical circuits) , electrical engineering , engineering , mathematics , computer network , ecology , physics , mathematics education , geometry , quantum mechanics , contamination , artificial intelligence , biology , environmental remediation
Planning of high voltage direct current (HVDC) grids requires inclusion of reliability assessment of alternatives under study. This paper proposes a methodology to evaluate the adequacy of voltage source converter/VSC-HVDC networks. The methodology analyses the performance of the system using N-1 and N-2 contingencies in order to detect weaknesses in the DC network and evaluates two types of remedial actions to keep the entire system under the acceptable operating limits. The remedial actions are applied when a violation of these limits on the DC system occurs; those include topology changes in the network and adjustments of power settings of VSC converter stations. The CIGRE B4 DC grid test system is used for evaluating the reliability/adequacy performance by means of the proposed methodology in this paper. The proposed remedial actions are effective for all contingencies; then, numerical results are as expected. This work is useful for planning and operation of grids based on VSC-HVDC technology.