M
Matti Lehtonen
Researcher at Aalto University
Publications - 770
Citations - 12827
Matti Lehtonen is an academic researcher from Aalto University. The author has contributed to research in topics: Fault (power engineering) & Computer science. The author has an hindex of 40, co-authored 694 publications receiving 8559 citations. Previous affiliations of Matti Lehtonen include Razi University & New York University.
Papers
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Journal ArticleDOI
A Novel Hybrid Approach to Estimate Customer Interruption Costs for Industry Sectors
Sinan Küfeoğlu,Matti Lehtonen +1 more
TL;DR: In this paper, the authors proposed a hybrid method that comprises of customer surveys and direct analytical methods to reach customer specific, objective and reliable results for the industry sector customers, and also brought a statistical approach to censor the zero and extreme responses given via the surveys.
Journal ArticleDOI
Impact of smart subtransmission level fault current mitigation solutions on service reliability
Shahram Kazemi,Matti Lehtonen +1 more
TL;DR: In this article, the authors quantitatively evaluate how smart fault current mitigation solutions may affect the major attributes of the service reliability, such as sustained interruptions, momentary interruptions and voltage sags.
Journal ArticleDOI
Risk-based insulation coordination studies for protection of medium-voltage overhead lines against lightning-induced overvoltages
TL;DR: In this paper, the authors evaluated the performance of various lightning protection schemes of medium-voltage overhead lines using risk-based insulation coordination method and showed that the lightning performance of overhead lines can be improved by reducing the spacing between two consecutive surge arresters to less than 200m.
Journal ArticleDOI
Effect of cumulative moisture content on degradation of transformer paper insulation
TL;DR: In this paper, the authors investigated the influence of moisture content, especially in low oxygen and temperature on lifetime estimation under constant conditions, based on the results of previous experiments, and proposed a novel lifetime estimation-approach considering a yearly moisture growth for transformers.
Proceedings ArticleDOI
TETRA radio in monitoring and control of secondary substations
TL;DR: Evaluation of the applicability of SDS for this particular data transmission purpose, measuring the performance of the TETRA system and developing the data structures of transmitted data blocks are put to.