标题：Assessment of Critical Loads Instigating Voltage Instability in Transmission Network using Novel Load Tracing Capable Index LQP_LT and PSS/E Tools Validation
摘要：Existing power systems are significantly susceptible to voltage instability problem since such
systems are stressed with the huge power transfers across the grids. Various power tracing
techniques have been developed but are limited to the application of transmission service pricing
in a deregulated environment. This paper presents a novel approach which adopts the power
tracing theory for voltage stability improvement via the development of reactive power tracing
capable index, named as LQP_LT. The index is tested in IEEE 14 Test Bus System in various
contingency states and comparison were made using the results obtained from the industrial
graded software PSS/E in evaluating the critical transmission lines in severe contingencies.
The LQP_LT index is found to be effective in determining the weak load buses in a
transmission system which ultimately responsible to cause stressed lines and overall voltage
instability in a system.
关键词：Voltage instability; reactive power tracing; power system simulation for engineers;
(PSS/E).
