Keywords: transient stability, fast valving, fuzzy control, multimachine systems, power systems, steam diversion valves, storage tanks, infinite bus systems
Transient stability improvement of power system using fuzzy operated steam diversion valve
This paper proposes a fuzzy based steam diversion valve to divert the steam to a storage tank during the occurance of a fault in a power system in order to improve stability of the system. The advantages of this technique over fast valving are discussed. The rate of opening and closing of valve are decided by the fuzzy controller. The valve operation is coordinated with fuzzy based braker. The technique is demonstrated for a single machine infinite bus system as well as four generators-ten bus multimachine system.