Essays about: "low frequency currents"

Showing result 21 - 22 of 22 essays containing the words low frequency currents.

  1. 21. Design of Harmonic Filters for Renewable Energy Applications

    University essay from Institutionen för kultur, energi och miljö

    Author : Bhunesh Kumar; [2011]
    Keywords : Digital Filter; Impulse Response; Wave Digital Filter; Circulator-Tree WAVE Digital Filter; Harmonics Filter; Renewable energy Filter; Wind Energy Filter; Butterworth; Chebyshev and Cauer filters; Low-pass; High-pass and Band-pass filters;

    Abstract : Harmonics are created by non-linear devices connected to the power system. Power system harmonics are multiples of the fundamental power system frequency and these harmonic frequencies can create distorted voltages and currents. Distortion of voltages and currents can affect the power system adversely causing power quality problems. READ MORE

  3. 22. Investigation of alternative current measurements in high-voltage applications

    University essay from Institutionen för teknik och naturvetenskap

    Author : Jens Holmgren; [2007]
    Keywords : HVDC; measure; Hall-Effect; Magnetoreistanse; magnetic field; current; mätning; ström;

    Abstract : ABB:s MACH2 system uses a number of currents to ignite thyristors for AC/DC-trassfformation and they are measured for control and protection. The measurement methods used today has major drawbacks. READ MORE