Essays about: "rating"

Showing result 1 - 5 of 318 essays containing the word rating.

  1. 1. Definition of New Critical Distances for Transformers Re-energization during a Black Start

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Valerian Bayle; [2017]
    Keywords : ;

    Abstract : This study aims to find new critical distances for transformer re-energization during network restoration after a blackout. Energizing a power transformer, in a grid that is lightly loaded due to the restoration process, involves a risk of temporary harmonic overvoltage. READ MORE

  2. 2. Solving a highly constrained multi-level container loading problem from practice

    University essay from Linköpings universitet/OptimeringsläraLinköpings universitet/Tekniska fakulteten

    Author : Jonas Olsson; [2017]
    Keywords : container loading; 3D packing; real-world application; heuristic; genetic algorithm;

    Abstract : The container loading problem considered in this thesis is to determine placements of a set of packages within one or multiple shipping containers. Smaller packages are consolidated on pallets prior to being loaded in the shipping containers together with larger packages. READ MORE

  3. 3. Estimation of Probability of Default in Low Default Portfolios

    University essay from Lunds universitet/Matematisk statistik

    Author : Linnéa Gerhardsson; Nina Castor; [2017]
    Keywords : Probability of default; PD; Low default portfolio; LDP; BCR; Bayesian; Vasicek; Monte Carlo; subportfolios; grade level estimates.; Mathematics and Statistics;

    Abstract : Estimation of probability of default (PD) is a fundamental part of credit risk modeling, and estimation of PD in low default portfolios is a common issue for banks and financial institutions. The Basel Committee on Banking Supervision requires banks and financial institutions to add an additional margin of conservatism to its PD estimates in the case of insufficient data, as in low default portfolios with few default observations. READ MORE

  4. 4. Sustainable Throughput – QoE Perspective

    University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

    Author : Veeravenkata Naga S Maniteja Darisipudi; [2017]
    Keywords : Mean Opinion Score; Quality of Experience; Sustainable Throughput;

    Abstract : In recent years, there has been a significant increase in the demand for streaming of high quality videos on the smart mobile phones. In order to meet the user quality requirements, it is important to maintain the end user quality while taking the resource consumption into consideration. READ MORE

  5. 5. An MMC-based topology with Dual-Active-Bridge power channels for load balancing in 50 Hz-railway applications

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Andreas Zafeiropoluos; [2017]
    Keywords : Power electronics; STATCOM; MMC; power channel; power quality; negativesequence compensation; high-speed trains;

    Abstract : The purpose of this thesis report is to investigate challenges related to railway electrification. Inac-railway systems, trains are most often single-phase loads, which can create significantunbalances in the grid, when fed directly from two adjacent phases. READ MORE