Abstract

Chaos appears as nonlinear oscillations in a power system and these phenomena are caused by disturbing of energy (DE) when a power system is in critical loading. Chaos causes instability and voltage collapse and must be avoided. The ANFIS-based composite controller (ANFIS-CC) is proposed to solve these phenomena. The ANFIS-CC has a more efficient computation than a Mamdani fuzzy logic controller. A three-bus power system with DE and additional reactive load are used to validate the proposed method performance. The proposed method is very effective in the control and suppression of chaos in power systems.

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