scholarly journals Modelling and Designing of Cascaded 9 Level Voltage Source Converter Based on DVR for Mitigating Harmonics in Distributed Power System using Unit Vector

2018 ◽  
Vol 8 (1) ◽  
pp. 11-20
Author(s):  
N. Eashwaramma et al., N. Eashwaramma et al., ◽  
Keyword(s):  
Power System ◽  
Unit Vector ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Distributed Power ◽  
Distributed Power System

scholarly journals A Novel Approach for Design and Analysis of Voltage-Controlled DSTATCOM for Power Quality Enhancement

2015 ◽  
Vol 15 (3) ◽  
pp. 486
Author(s):  
Syed Ruman ◽  
Shaik Hameed
Keyword(s):  
Power System ◽  
Power Quality ◽  
Power Factor ◽  
Voltage Regulation ◽  
Reference Voltage ◽  
Control Mode ◽  
Voltage Source ◽  
Distributed Power ◽  
Novel Approach ◽  
Distributed Power System

The Power quality fluctuations of the distributed power system show a serious impact on the robust and sustainable operation of the distributed power system. These power quality fluctuations may be caused due to several reasons like leakage, faults and ageing of the lines. This project proposes a new algorithm to generate reference voltage for a controlled mode distribution static compensator (DSTATCOM) operating in voltage-control mode. The proposed scheme exhibits several advantages compared to traditional voltage-controlled DSTATCOM where the reference voltage is arbitrarily taken as 1.0 p.u. The proposed scheme ensures that unity power factor (UPF) is achieved, while regulating the voltage at the load terminal, during load change, which is not possible in the traditional method. Also, the compensator injects lower currents and, therefore, reduces losses in the feeder and voltage-source inverter. This scheme allows DSTATCOM to tackle power-quality issues by providing power factor correction, harmonic elimination, load balancing, and voltage regulation based on the load requirement.  Simulation and experimental results are presented to demonstrate the efficacy of the proposed algorithm.

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