Sökning: "Non-linear Compensation Systems"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Non-linear Compensation Systems.

1. 1. Millimeter Wave Antenna Array Calibration and Validation for 5G New Radio Access

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Manuel Jose Lopez Morales; [2018]
   Nyckelord :Technology and Engineering;

   Sammanfattning : This Master thesis work was performed in Ericsson AB, Lund. It studies and validates two classes of algorithms to be used in mm-wave massive MIMO antenna arrays, for their use in the future 5G mobile communication systems. LÄS MER

3. 2. Analysis and Compensationfor Clipping-like Distortion of the Transmitted Signal in Massive MIMO Systems

   Master-uppsats, Linköpings universitet/Kommunikationssystem

   Författare :Adel Fayad; [2018]
   Nyckelord :Master; Thesis; Massive MIMO; Clipping; Distortion; Power amplifier distortion; SNR; Error Probability;

   Sammanfattning : This project consists of analyzing and finding solutions to the effect of non-linear distortionon the performance of a Massive Multiple Input Multiple Output (MIMO) system interms of Spectral Efficiency (SE) and Symbol Error Rate (SER). Massive MIMO is one ofthe technologies that are considered the backbone of the 5th generation of wireless communicationsand therefore this technology has gathered much interest from researchersand companies alike [19], as it is proven that this kind of system greatly improves thecapacity of the wireless connection [8]. LÄS MER

4. 3. The impacts of series compensated EHV lines on distance protection, and a proposed new mitigation solution

   Master-uppsats, KTH/Elektroteknisk teori och konstruktion

   Författare :Syed Arif Ullah Shah; [2017]
   Nyckelord :Series compensation; metal oxide varistor; voltage inversion; current inversion; sub-synchronous oscillation; quadrilateral characteristic distance relay; digital high-pass filter; Seriekompensation; metalloxidvaristor; spänningsinversion; ströminversion; subsynkron oscillation; fyrsidig karakteristiskt distansrelä; digitalt högpassfilter;

   Sammanfattning : Series compensation is extensively applied to the transmission lines to increase the power transfer capability of transmission lines, reduce transmission losses, improve voltage profiles, and improve power oscillation damping and transient stability of power systems. But it modifies the apparent impedance of the transmission lines during fault conditions and might cause the distance protection of transmission lines to encounter directional discrimination issues and reach problems. LÄS MER

5. 4. The Impacts of Ultra High Voltage AC line characteristics on line distance protection

   Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

   Författare :Karthi Tamilselvan; [2016]
   Nyckelord :UHV transmission line; line distance protection; non-linearity of fault impedance; UHV transmissionsledningar; distans- skydd; olinjära felimpedansen;

   Sammanfattning : With the growing load demand, Ultra high Voltage (UHV) transmission lines are utilized in many countries around the world for bulk power transmission from remote locations over long distance. UHV transmission lines have typical features and it poses a challenge to the power system design with respect to protection, insulation and reactive power compensation, etc. LÄS MER

7. 5. Greedy Politicians? An Empirical Test of the Public Choice Theory

   C-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

   Författare :Max Rylander; Lukas Kvissberg; [2012]
   Nyckelord :Politicians; Public Choice; Monetary Incentives; Swedish Municipalities; Non-linear Compensation Systems;

   Sammanfattning : This study aims to empirically test the postulate of Public Choice of politicians as self-interested. To achieve this we examine whether local politicians in Sweden take the opportunity to exploit the compensation systems for municipal assembly meetings. We use two different approaches to examine if this behavior exists. LÄS MER