scholarly journals Improvement of the power quality of single‐phase grid‐connected inverter by filter‐based control scheme

2020 ◽  
Vol 13 (8) ◽  
pp. 1667-1674
Author(s):  
Moath Alqatamin ◽  
Michael L. McIntyre
Keyword(s):  
Power Quality ◽  
Single Phase ◽  
Control Scheme ◽  
Grid Connected Inverter

Research on Single-Phase Back-to-Back SVG Solution of Power Pollution of Traction Transformer to Accessed Grid

2014 ◽  
Vol 687-691 ◽  
pp. 3411-3414
Author(s):  
Jia Yong Chen ◽  
Kun Ya Guo ◽  
Peng Jin ◽  
Shu Han Wang
Keyword(s):  
Power Quality ◽  
Single Phase ◽  
High Harmonic ◽  
Electric Locomotive ◽  
The Public ◽  
Three Phase ◽  
Static Var Generator ◽  
Railway Traction ◽  
Electrified Railway

Electrified railway traction transformer is a pivot that connects the electric locomotive and the public grid. Therefore, power quality problems caused by electric locomotive such as three-phase voltage imbalance, great voltage fluctuation and high harmonic content can be transmitted to the public grid via the traction transformer. To solve this problem, the solution of two sets of single-phase SVG (Static Var Generator) in back-to-back operation to solve power quality problems of the electrified railway is raised. This solution has been proved by practice effective in improving power quality of the traction transformer.

Power Quality Improvement of SCR Controlled Loads

2012 ◽  
Vol 512-515 ◽  
pp. 1199-1204
Author(s):  
Yong Zhang ◽  
Jing Shuang Shen ◽  
Hai Feng Zheng
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Single Phase ◽  
Harmonic Current ◽  
Industrial Plants ◽  
Power Filter ◽  
Power Quality Improvement ◽  
Glass Furnaces

This paper explores methods to improve the power quality of large, single-phase, thyristor controlled equipment within industrial plants. An advanced shunt single phase power filter for the compensation of instantaneous harmonic current components in direct coupled booster melting in glass furnaces is presented. The validity of the excellent filtering characteristics is verified by a previous installation.

A Novel Fuzzy Based Control Scheme for Power Quality Enhancement in Grid Connected System

2014 ◽  
Vol 573 ◽  
pp. 304-309
Author(s):  
M. Muhaidheen ◽  
S. Muralidharan
Keyword(s):  
Power Quality ◽  
Power Flow ◽  
Reactive Power ◽  
Dynamic Performance ◽  
Consumer Products ◽  
Point Of View ◽  
Modern World ◽  
Simple Method ◽  
Control Scheme

Today’s modern world, all the frequently using electrical appliances ranging from consumer products to state of the art industrial products exhibits nonlinearity. Due to this the quality of the Grid becomes worse. It also pollutes, electrical point of view, the other healthy systems also. In this connection, various approaches have been put forth to minimize the harmonics in the supply which in turn improve the quality of the power Grid in terms of improving real, reactive power flow and power factor. This paper proposes the novel approach to enhance the power quality in the grid by using simple method to extract the harmonic current compared to time consuming d-q modelling approach. This novel control techniques exhibit excellent dynamic performance, easy to implement, high robustness and stability. The proposed control scheme is verified by comparing its performance with its counterparts. In this connection a testing scheme is developed and tested with the help of MATLAB/SIMULINK package and it agrees in line with our proposed scheme.

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

A State Equation Model of a Single-Phase Grid-Connected Inverter Using a Droop Control Scheme With Extra Phase Shift Control Action

2012 ◽  
Vol 59 (3) ◽  
pp. 1527-1537 ◽  
Author(s):  
Henrique José Avelar ◽  
Wanderley Alves Parreira ◽  
João Batista Vieira ◽  
Luiz Carlos Gomes de Freitas ◽  
Ernane Antônio Alves Coelho
Keyword(s):  
Phase Shift ◽  
Single Phase ◽  
State Equation ◽  
Equation Model ◽  
Control Action ◽  
Droop Control ◽  
Shift Control ◽  
Control Scheme ◽  
Grid Connected Inverter
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