Power quality and voltage sag indices in electrical power systems

A Polycarpou - … Generation and Distribution Systems and Power …, 2011 - books.google.com
In modern electrical power systems, electricity is produced at generating stations,
transmitted through a high voltage network, and finally distributed to consumers. Due to the …

Validation of a proposed voltage sag prediction methodology for interconnected systems during motor starting

A Polycarpou, H Nouri - 2009 44th International Universities …, 2009 - ieeexplore.ieee.org
A new methodology for power system quality improvement, through voltage sags profile
prediction is proposed in this paper. The voltage sag is caused by an increase in reactive …

Investigation into the compatibility and effectiveness of a new mathematical online voltage sag index

A Polycarpou, H Nouri - International Journal of Power and …, 2010 - inderscienceonline.com
A new mathematical index is investigated in this paper which improves the power quality of
a system through providing a tool for online voltage sag mitigation. The index is developed …

Investigation into the accuracy limits of a proposed Voltage Sag Index

A Polycarpou, H Nouri, R Ciric - 2009 44th International …, 2009 - ieeexplore.ieee.org
In the modern industrial world most electronic and electrical control devices are
characterized by an extreme sensitivity on power quality variations. Voltage sag is defined …

Development and Investigation of a Proposed Voltage Sag Index

A Polycarpou - International Journal of Energy Optimization and …, 2012 - igi-global.com
A proposed voltage sag index based on power flow equations is developed and
investigated in this paper. The index supervises the power quality of a system, through …

[PDF][PDF] Critical voltage proximity index Investigation for transmission systems

A Polycarpou, H Nouri, D Micu - Transaction on PTD, Global Journal of …, 2012 - engedu2.net
A developed mathematical critical voltage proximity index is investigated in this paper.
Mathematical description of the index is provided. Background theory on established …

[PDF][PDF] Investigation into the compatibility and effectiveness of a new mathematical online voltage sag

A Polycarpou, H Nouri - researchgate.net
A new mathematical index is investigated in this paper which improves the power quality of
a system through providing a tool for online voltage sag mitigation. The index is developed …

[PDF][PDF] New Methodology for the Prediction of Motor Starting Effect on Bus Voltages of Interconnected Power Systems

A Polycarpou, H Nouri, A Azizpour - American Journal of Electrical …, 2016 - academia.edu
A new methodology is proposed in this paper capable of predicting the impact of induction
motor load starting on the bus voltages of an interconnected power system. The profile of the …

Development and verification of interconnected system Power loss equations

P Alexis, A Papadakis, N Christofides… - … and Exhibition on …, 2010 - ieeexplore.ieee.org
Transmission lines are important element of a power system utilized for transfer of real and
reactive power from generators to consumers. Power line losses are directly related to the …