Search for dissertations about: "reluctance network method"
Found 4 swedish dissertations containing the words reluctance network method.
-
1. Electromagnetic Modelling of Power Transformers with DC Magnetization
Abstract : DC currents that flow through the ground can be injected to the star windings of power transformers from their grounded neutral points and close their path with transmission lines. The geomagnetically induced currents (GICs) and AC/DC convertors of high voltage direct current (HVDC) systems are the sources of such DC currents. READ MORE
-
2. An FRA Transformer Model with Application on Time Domain Reflectometry
Abstract : Frequency response analysis (FRA) is a frequency-domain method which is used to detect mechanical faults in transformers. The frequency response of a transformer is determined by its geometry and material properties, and it can be considered as the transformer’s fingerprint. READ MORE
-
3. Electromagnetic Modelling of Power Transformers for Study and Mitigation of Effects of GICs
Abstract : Geomagnetic disturbances that result from solar activities can affect technological systems such as power networks. They may cause DC currents in power networks and saturation of the core in power transformers that leads to destruction in the transformer performance. READ MORE
-
4. Dimensioning Tools of MEA Actuator Systems, Including Modeling, Analysis and Technology Comparison
Abstract : Aircraft design is an example of complex engineering where dimensioning tools can be valuable for the designers and decision makers in the early stage of the development process. These tools can be in form of a database over key numbers for different components or technologies. One of the critical parts of an aircraft is the actuator system. READ MORE