Journal of Electrical Power System Engineering and Technology ISSN: 3107-8532 (Online)

Authors:Rajendra Prasad, Vishal Saxsena

AbstractPower system stability is the ability of a power system to remain in a state of operating equilibrium under normal operating conditions and to regain an acceptable state of equilibrium after being subjected to a disturbance. Stability is important for ensuring the reliable operation of power systems, as a loss of stability can lead to cascading outages and widespread blackouts. There are two main types of power system stability: rotor angle stability and voltage stability. Rotor angle stability is the ability of the synchronous machines in a power system to remain in synchronism with each other. Voltage stability is the ability of the voltages in a power system to remain within acceptable limits. The stability of a power system can be affected by a number of factors, including the network topology, the load level, the operating reserves, and the control system. Stability analysis can be performed using a variety of methods, including linearized stability analysis, nonlinear stability analysis, and simulation. There are a number of control schemes that can be used to improve power system stability, including automatic voltage control (AVC), automatic generation control (AGC), synchronous condensers, and power system stabilizers (PSS). By understanding the factors that affect power system stability and by using appropriate control schemes, it is possible to design and operate power systems that are reliable and secure.

Keywords-Power system stability, Rotor angle stability, Voltage stability, Network topology, Load level, Operating reserves, Control system, Linearized stability analysis, Nonlinear stability analysis, Simulation, Automatic voltage control (AVC), Automatic generation control (AGC), Synchronous condensers,