Voltage and transient stability analysis in Bangladesh's power system network (BPSN)

This paper presents an analysis of the reactive power and voltage stability of the Northern region of Bangladesh Power System Network (BPSN) in EDSA Paladin Design Base Software. In order to prevent unacceptable voltage collapses and to reduce losses to ensure sufficient reactive power during normal and emergency conditions, voltage level at different points has been analyzed and determining those nodes which are allowing to exceed the permitted range or weak points in BPSN through simulation results. Handling this situation, the voltage and reactive power control in distribution system can be properly controlled by coordinating transformer tap changing and shunt capacitors. Simulation results show that by providing shunt capacitor among the buses to the collapse point results in improved voltage stability within positive consequence limit as an acceptable voltage level in the system.