Sökning: "Power quality"
Visar resultat 1 - 5 av 716 avhandlingar innehållade orden Power quality.
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
Sammanfattning : .... LÄS MER
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
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