Search for dissertations about: "thesis math"

Showing result 1 - 5 of 53 swedish dissertations containing the words thesis math.

  1. 1. Stochastic Planning of Smart Electricity Distribution Networks

    University dissertation from Luleå University of Technology

    Author : Manuel Alejandro Alvarez Perez; Sarah K. Rönnberg; Math Bollen; Jin Zhong; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Power Engineering; Elkraftteknik;

    Abstract : The penetration of intermittent Distributed Generation (DG) brought additional uncertainty to the system operation and planning. To cope with uncertainties the Distribution System Operator (DSO) could implement several strategies. READ MORE

  2. 2. Stability of Low-Frequency AC Railways Models and Transient Stability

    University dissertation from Luleå : Luleå University of Technology

    Author : John Laury; Lars Abrahamsson; Math Bollen; Pablo Arboleya; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Power Engineering; Elkraftteknik;

    Abstract : Low-frequency AC railway grids are unique in the sense that a only few countries around the world uses them, still however, they are an important parts of their countries infrastructures. Due to the usage of a dierent frequency than the public grid of the country, conversion of frequency is needed for the interconnection. READ MORE

  3. 3. Artificial Intelligence-Based Characterization and Classification Methods for Power Quality Data Analytics

    University dissertation from Luleå : Luleå University of Technology

    Author : Azam Bagheri; Math Bollen; Surya Santoso; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power System; power Quality; Voltage Dip; Big Data; Deep Learning; Machine Learning; Active Learning; Consensus Contriol; Electric Power Engineering; Elkraftteknik;

    Abstract : One of the important developments in the electric power system is the fast increasing amount of data. An example of such data is formed by the voltages and currents coming from power-quality measurements. READ MORE

  4. 4. On Transfer Functions for Power Quality Studies in Wind Power and Solar PV Plants

    University dissertation from Luleå : Luleå University of Technology

    Author : Daphne Schwanz; Math Bollen; Anders Larsson; Jovica Milanovic; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Power Engineering; Elkraftteknik;

    Abstract : As part of the decarbonisation of the energy system, wind and solar power are expected to play an important role. However, together with their growth, new challenges appear in the electric power system; this requires further research, development, and often studies before connection is possible. READ MORE

  5. 5. Data analytics for weak spot detection in power distribution grids

    University dissertation from Halmstad : Halmstad University Press

    Author : Hassan Mashad Nemati; Sławomir Nowaczyk; Anita Pinheiro Sant'Anna; Math Bollen; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This research aims to develop data-driven methods that extract information from the available data in distribution grids for detecting weak spots, including the components with degraded reliability and areas with power quality problems. The results enable power distribution companies to change from reactive maintenance to predictive maintenance by deriving benefits from available data. READ MORE