Power Quality Improvement in IEEE-39 RTS System by Using DATATCOM: Mitigation of Voltage Sag Analytically

2018 ◽  
Author(s):  
Jagannath Patra ◽  
Nitai Pal ◽  
Ashiwani Yadav ◽  
Aprajita Kumari
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Voltage Sag ◽  
Power Quality Improvement

scholarly journals Power Quality Improvement using D-STATCOM with Instantaneous Symmetrical Component Theory

2020 ◽  
Vol 9 (4) ◽  
pp. 1263-1266
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Control Technique ◽  
Voltage Sag ◽  
Matlab Simulink ◽  
Voltage Dip ◽  
Component Theory ◽  
Symmetrical Component ◽  
Power Quality Improvement ◽  
Static Compensator

A technique is introduced to improve the voltage sag under sudden changes in load. The proposed technique is implemented by D-STATCOM (Distribution static compensator) and it is controlled by ISCT (Instantaneous Symmetrical Component Theory). Due to sudden changes in load, the voltage dip occurs at the time of switching of loads. At this time, the control technique generates reference currents and hysteresis block compares these currents with the reference currents and generates the pulses to D-STATCOM. Implementation of system along with compensation is carried out in MATLAB/SIMULINK

scholarly journals UPQC Based Power Quality Improvement

2020 ◽  
Author(s):  
iftikhar manzoor
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Power Factor ◽  
Power Factor Correction ◽  
Voltage Sag ◽  
Power Quality Improvement ◽  
Voltage Swell ◽  
Power Quality Conditioner

UPQC Based power quality conditioner covers all power quality problems. Problems covers by UPQC are Voltage Sag, Voltage Swell, voltage imbalance, Power factor correction, harmonics mitigation.

scholarly journals Fuzzy with Hysteresis Controller for Power-Quality Improvement of Grid Interconnected System

2020 ◽  
Vol 9 (3) ◽  
pp. 4059-4062
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Distribution Systems ◽  
Harmonic Distortion ◽  
Voltage Sag ◽  
Interconnected System ◽  
Logic Control ◽  
Unbalanced Voltage ◽  
Hysteresis Controller ◽  
Power Quality Improvement

The grid connected distribution systems are providing the energy to the load from the grid. During the period of energy transmission, the issues are occurred on the power quality in transmission line. In the power system, the power quality issues are occurred due to the following issues as instability of the system, voltage sag, harmonic distortion, over voltage, unbalanced voltage etc. In this paper, the power quality improvement is designed using the inverter which compensates the voltage and current when the fault occurred. This inverter is used to inject the power using a DC source. This improvement of power quality is controlled by the hysteresis controller with fuzzy logic control. The feedback is given to the controller which reduces the error from the system and provides the control variables to the inverter terms of switching gate signals.

scholarly journals A D-STATCOM for Power Quality Improvement Under Different Fault Conditions

2020 ◽  
Vol 8 (6) ◽  
pp. 1462-1465
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Power Factor ◽  
Distribution System ◽  
Voltage Sag ◽  
Voltage Sags ◽  
Passive Filter ◽  
Power Quality Improvement ◽  
Voltage Swells ◽  
Harmonic Distortions

D-STATCOM has been used to improve the power quality problems, such as voltage sags, voltage swells for different fault conditions. In order to improve the power factor and reduce the harmonic distortions, LCL passive filter is used along with D-STATCOM. The aim of this paper is to compensate the voltage sag and harmonic distortions by designing the D-STATCOM with LCL passive filter across the distribution system. The simulations were performed by using MATLAB/SIMULINK.

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