Power System Oscillation Damping using Coordinated Power System Stabilizer and STATCOM

When a power system experiences power oscillations brought on by a disturbance in the system, stability has been a fundamental problem in power system operation. Loss of synchronism and a catastrophic system collapse might result from power fluctuations. An effort must be made to dampen out power oscillation if the system is to remain stable despite a disturbance. Such oscillations are dampened using power system stabilizers (PSS), and the usage of flexible AC transmission system (FACTS) devices is recommended for increased damping efficacy. By reducing the oscillatory character of the system states, improvement in power system damping has been obtained. The primary purposes of the power system stability are to offer a dampening component when the machine’s rotor speed deviation is in phase with it and to supply a stabilizing signal that compensates for oscillations in the excitation system’s voltage error during dynamic/transient states. According to studies, power system stability is intended to offer more damping torque for various operating conditions, such as normal load and high load, which enhances the power system’s dynamic stability. The simulation was run using PSCAD/EMTDC on a specific model system to demonstrate the viability of the suggested method.