A case study on Power Quality issues in the Indian Railway traction sub-station

2013 ◽  
Author(s):  
N. Gunavardhini ◽  
M. Chandrasekaran ◽  
C. Sharmeela ◽  
K. Manohar
Keyword(s):  
Power Quality ◽  
Railway Traction ◽  
Quality Issues ◽  
Indian Railway

scholarly journals Power quality considerations for embedded generation integration in Nigeria: A case study of ogba 33 kV injection substation

2021 ◽  
Vol 11 (2) ◽  
pp. 956
Author(s):  
Agbetuyi Ayoade F. ◽  
Abdulkareem Ademola ◽  
Orovwode H. E. ◽  
Oladipupo Oluwafemi K. ◽  
Matthew Simeon ◽  
...  
Keyword(s):  
Power Generation ◽  
Power Quality ◽  
Load Flow ◽  
Voltage Profile ◽  
Network Integration ◽  
Embedded Generation ◽  
Quality Issues ◽  
Embedded Generators ◽  
Bus Voltage

The deregulation of the Nigerian power sector has resulted in the quest to explore power generation options for power quality improvement. One of such options is the pattern shift from central power generation to embedded power generation. Network integration of embedded generators (EGs) causes several regulatory, technical and economic issues. This research focuses on power quality challenges that may arise as a result of network integration of embedded generation in a weak electricity networks using Ogba 33 kV injection substation as case study. The embedded generators considered comprised of gas turbine and diesel generators. NEPLAN software was used to perform the load flow analysis with and without EGs connection on the network. This was necessary so as to ascertain the healthiness of the existing distribution network for EGs integration. The power quality issues considered in the study were bus voltage profiles and the total line losses. Simulation results showed that EGs connection improved the voltage profile, for example, bus voltage at PTC 11 kV, improved from 0.881 pu to 0.958 pu while the total active power loss was reduced by 78.16%. The results obtained suggest that the grid is healthy enough to accommodate the EGs with no quality issues.

Unit Template Based Control of PV-DSTATCOM

2020 ◽  
Vol 13 (1) ◽  
pp. 36-42
Author(s):  
Gunjan Varshney ◽  
Durg S. Chauhan ◽  
Madhukar P. Dave ◽  
Nitin
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Phase Distribution ◽  
Voltage Regulation ◽  
Photovoltaic Array ◽  
Quality Issues ◽  
Static Compensator

Background: In modern electrical power distribution systems, Power Quality has become an important concern due to the escalating use of automatic, microprocessor and microcontroller based end user applications. Methods: In this paper, power quality improvement has done using Photovoltaic based Distribution Static Compensator (PV-DSTATCOM). Complete simulation modelling and control of Photovoltaic based Distribution Static Compensator have been provided in the presented paper. In this configuration, DSTATCOM is fed by solar photovoltaic array and PV module is also helpful to maintain the DC link voltage. The switching of PV-STATCOM is controlled by Unit template based control theory. Results: The performance of PV-DSTATCOM has been evaluated for Unity Power Factor (UPF) and AC Voltage Control (ACVC) modes. Here, for studying the power quality issues three-phase distribution system is considered and results have been verified through simulation based on MATLAB software. Conclusion: Different power quality issues and their improvement are studied and presented here for harmonic reduction, DC voltage regulation and power factor correction.

scholarly journals Review of Power Quality Issues in Maritime Microgrids

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Tomasz Tarasiuk ◽  
Shantha Gamini Jayasinghe ◽  
Mariusz Gorniak ◽  
Andrzej Pilat ◽  
Viknash Shagar ◽  
...  
Keyword(s):  
Power Quality ◽  
Quality Issues
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