A grid-tie PV inverter with the ability to improve power quality under unbalanced and distorted source voltage conditions

2018 ◽  
Vol 41 (7) ◽  
pp. 622-634 ◽  
Author(s):  
Hadi Afkar ◽  
Mohammad Ali Shamsinejad ◽  
Mahmoud Ebadian
Keyword(s):  
Power Quality ◽  
Pv Inverter ◽  
Source Voltage

scholarly journals Unified Control Strategy of PV Inverter Mixed Power Quality Control

2013 ◽  
Vol 05 (04) ◽  
pp. 226-229
Author(s):  
Jie Zhang ◽  
Kai Yao ◽  
Liang Li ◽  
Wei Zhao
Keyword(s):  
Quality Control ◽  
Power Quality ◽  
Control Strategy ◽  
Pv Inverter ◽  
Mixed Power

scholarly journals Power Quality Improvement by Upqc With Real Power Injected Micro Turbine

2018 ◽  
Vol 7 (4.36) ◽  
pp. 784
Author(s):  
T. Ramesh ◽  
S. Manimaran ◽  
S. Kaliappan ◽  
G. Emayavaramban ◽  
R. Saravanan
Keyword(s):  
Power Quality ◽  
Environmental Benefits ◽  
Shunt Operation ◽  
Present System ◽  
Major Power ◽  
Shaft System ◽  
Power Quality Improvement ◽  
Source Voltage ◽  
Micro Turbine ◽  
Current Unbalance

Power Quality is one of the major concerns in the present system. Due to the rapid growth of non-linear loads, major power quality problems such as harmonics, unbalance operation and voltage deficiencies (i.e., sag and swell) arise. This paper proposes MTG based Unified Power Quality controller (UPQC) to get better the power quality troubles like voltage sag, current unbalance in the LV residential feeders which performs both the series and shunt operation. In this paper, Micro Turbine Generator (MTG) system is proposed to improve the efficiency and environmental benefits. The proposed system consists of two types, single shaft and split shaft MTG system. Among these two types, single shaft system is used which is simple in structure and easy to implement. The output of MTG system is connected to the DC link of UPQC. This proposed system reduces the THD content in the source voltage and load current of the system. The presentation of the projected system is imitation using the MATLAB / SIMULINK. 

Power Quality Problems in PV Fed Grid Connected Inverter

2014 ◽  
Vol 622 ◽  
pp. 147-151
Author(s):  
Natesan Saritha ◽  
Venkatesan Jamuna ◽  
N. Nanthini
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
System Performance ◽  
Short Circuit ◽  
Multilevel Inverter ◽  
Voltage Sag ◽  
Pv Inverter ◽  
Power Quality Disturbances ◽  
Grid Connected Inverter

—– In this paper, problem faced by grid connected pv inverter is presented. Inverters connected to grid are mostly affected due to short circuit problems in the power systems. Therefore it is essential to analyze power quality disturbances in order to improve the quality of the system. Performance of inverter is affected severely by voltage sag compared to other type of power quality disturbances. Also in this paper, multilevel inverter with sag condition and without sag condition is simulated using MATLAB/SIMULINK software

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