scholarly journals Relationship between mains costs and voltage switches

2021 ◽  
Vol 289 ◽  
pp. 07035
Author(s):  
A Alimov ◽  
F Akbarov ◽  
G B Eshniyazova ◽  
A Tureniyaziva
Keyword(s):  
Power Quality ◽  
Voltage Stabilization ◽  
Overhead Lines ◽  
Calculated Load ◽  
Network Costs

The article deals with the issues of interconnection of network costs and power quality, in particular voltage deviations. The graphs of the distribution of voltage deviations for electrical receivers are given for two calculated load modes - the highest (100%) and the lowest (25%), corresponding to the choice of wires of 10 and 0.38 kV overhead lines for economic loads and voltage stabilization on 10 kV buses of 35/10 kV RTP at the level of + 5%.

A Power Quality Case Study of Contact Overhead Lines in the Medellin Metro System

2019 ◽  
Author(s):  
Andres Emiro Diez ◽  
Mauricio Restrepo ◽  
Julian Vega ◽  
Camilo Melendez ◽  
Jose Dariel Arcila ◽  
...  
Keyword(s):  
Power Quality ◽  
Overhead Lines ◽  
Metro System

Power Quality Improvement of High Voltage DC Link using Modified Shunt Active Power Filter

2018 ◽  
Vol 1 (1) ◽  
pp. 54-66
Author(s):  
Rakan Khalil Antar ◽  
Basil Mohammed Saied ◽  
Rafid Ahmed Khalil
Keyword(s):  
Power Quality ◽  
High Voltage ◽  
Pulse Width Modulation ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Source ◽  
Active Power Filters ◽  
Power Filter ◽  
Power Filters ◽  
Power Quality Improvement

A new control strategy for active power filters is proposed, modeled and implemented in order to improve the power quality of a line commutated converter High voltage DC link. The ability of reactive power and harmonics reductions are generally met by using passive and active power filters. In this paper, modified active power filter with a modified harmonics pulse width modulation algorithm is used to minimize the source harmonics and force the AC supply current to be in the same phase with AC voltage source at both sending and receiving sides of a line commutated converter high voltage DC link. Therefore, it is considered as power factor corrector and harmonics eliminator with random variations in the load current. The modified harmonics pulse width modulation algorithm is applicable for active power filter based on a three-phase five-level and seven-level cascaded H-bridge voltage source inverter. Simulation results show that the suggested modified multilevel active power filters improve total harmonics distortion of both voltage and current with almost unity effective power factor at both AC sides of high voltage DC link. Therefore, modified active power filter is an effective tool for power quality improvement and preferable for line commutated converter high voltage DC link at different load conditions.

Power Capacitors and the Improvement Technology of Electric Power Quality

2015 ◽  
Vol 135 (5) ◽  
pp. 272-275
Author(s):  
Shoji Nishimura ◽  
Shigeru Inno ◽  
Tatsuki Okamoto
Keyword(s):  
Electric Power ◽  
Power Quality ◽  
Electric Power Quality
Sign in / Sign up

Export Citation Format

Share Document