Journal of Electrical Engineering : Volume 17 / 2017 - Edition : 1

STRENGTH OF STANDARD IEEE POWER SYSTEMS : A REVIEW

Authors:
SAPTARSHI ROY
Dr.P.SURESH BABU
Domain:
industrial electrical power systems
Abstract:
Bus is an important component of power system. Weak voltage profile of buses is a serious problem in power network which can harm the security and reliability of power system. Whenever there is a change in load, the system voltage level changes. The demand of reactive power in power system increases With the drop in voltage level. If the reactive power demand is not met, then it leads to further decline in bus voltage resulting in the cascading effect on adjacent power networks. Hence determination of the strength of buses and maintaining the voltage profile within permissible limits becomes essential. This paper reviews various problems faced by power systems due to weak voltage profiles and its solution for a better , reliable power supply in wide area power systems. This review paper presents algorithms for load flow solutions and their advantages, disadvantages ;Indian Electricity Rules for permissible fluctuation of voltage ; top view of IEEE 57 ,118,300 Bus test system constructed in Power World software ; improvement of voltage profile and power flows after inserting series capacitor in the IEEE 57 bus test system and strong and weak bus voltages of IEEE 118 and 300 bus test systems after running NRLF.
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