Abstract
The presence of turbulent oscillations results in instability within power systems. These oscillations, while not directly impacting the synchronization of machinery, can incite specific oscillatory mode, causing voltage imbalance, and desynchronization of the machine. This research introduces a novel control approach in the form of a Static synchronous compensator (STATCOM) with a battery storage, tuned by a Whale Optimization Algorithm (WOA) to alleviate and dampen the turbulence of the system. The versatile controller comprising two PI controllers (AC and DC voltage regulators) manages the control signals via a current regulator using PWM (Pulse width modulation). The battery integrated with the VSC (Voltage source converter) is meant to operate as a stable voltage source, while the control block ensures to maintain the battery voltage. The system is exposed to the most prominent perturbances like varying electric torque and changing reference voltages. Zero natural damping has been considered to aggravate the system conditions so that the efficacy of the proposed controller could be truly examined. The analysis of rotor dynamics has been conducted under various conditions, including no control, STATCOM alone, and WOA-based STATCOM. The results demonstrate the mitigation capabilities of the proposed controller while operating under the worst scenarios.
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