Sökning: "Power quality"
Visar resultat 1 - 5 av 819 avhandlingar innehållade orden Power quality.
1. Automating Power Quality Analysis
Sammanfattning : The increased requirements on supervision, control, and performance in modern power systems make power quality monitoring a common practise for utilities. Large databases are created and automatic processing of the data is required for fast and effective use of the available information. LÄS MER
2. On power quality and protection
Sammanfattning : .... LÄS MER
3. Från kvalitetsidé till kvalitetsregim : Om statlig styrning av skolan
Sammanfattning : The Swedish educational contexts were in the 1990ies characterized by extensive and rapid changes towards decentralisation and governing through goals and results. A significant feature was the introduction of instruments and techniques with a common core of “quality”. LÄS MER
4. Power-generation, Power-electronics and Power-systems issues of Power Converters for Photovoltaic Applications
Sammanfattning : The thesis deals with issues related to solar energy systems, or more specifically, the electric systems of photovoltaic (PV) installations. Initially aspects of planning and estimating the performance of a PV-installation are considered. LÄS MER
5. Power Quality Disturbances and Protective Relays
Sammanfattning : This thesis combines knowledge from two areas: power quality and power system protection. Power quality concerns the effect of voltage disturbances on end-user equipment and of current disturbances on network components. Power system protection concerns the detection of faults in the system from measured voltages and currents. LÄS MER