Original Research Article
Year: 2015 | Month: May | Volume: 2 | Issue: 5 | Pages: 242-248
Enhancement of CCT with Damping Control by Fuzzy Technique
B. Archana Bai1, R. Kalpana2
1PG Student/EEE, 2Assistant Professor/EEE,
PSV College of Engineering & Technology, Tamil Nadu, India.
Corresponding Author: B. Archana Bai
This paper proposes an improved steady state equivalent circuit method to determine transient stability of a distribution system or a micro-grid with multiple IGs. Interaction between IGs and distribution network during a fault is investigated. The relationship between network parameters and speeds of IGs is derived using the steady-state equivalent circuits of IGs. The critical speed and critical fault clearing time (CCT) for maintaining system stability are determined using the proposed fuzzy based technique. The factors, which affect transient stability of a multi-IG distribution system, are investigated. The correctness of the proposed method is verified by dynamic simulation using MATLAB and Suppression of low-frequency oscillations increasing power transfer capability between interacting areas, Enhanced secure power flows reducing unplanned system separation or blackouts.
Index Terms: Induction Generator (IG), Critical clearing time (CCT), Fuzzy technique, transient stability, low frequency oscillation.