Mitigating the Harmonic Distoration in Power System using SVC with AI Technique

The reactive power compensation in a power distribution network plays a vital role in improving voltage and power system stability. Flexible AC transmission system (FACTS) devices like Static Var Compensators (SVCs) are used to control reactive power generation or absorption in long transmission line. However, these SVCs will introduce harmonic current in to the system due to the operation of thyristor controlled reactors (TCR). This paper proposes minimize harmonic injected using svc & passive filter combination and modified AI technique approach to minimize the harmonics injected into the systems with the operation of TCR-TSC type SVC used in conjunction with fast-changing loads. Optimum triggering delay angles used to trigger thyristors in TCR are calculated using the proposed to achieve better, smooth and adaptive control of reactive power as well as harmonics. And define which system is best for minimum injected harmonic in power system.