Monitoring of Power System Voltage Stability through Artificial Neural Network Technique

Due to economic reasons arising out of deregulation and open market of electricity, modern day power systems are being operated closer to their stability limits. Power system voltage stability is one of the challenging problems faced by the utilities. Online voltage stability monitoring is becoming an integral part of the modern day Energy Management Systems (EMS). There has been works reported in the literature on the use of analytical methods to monitor voltage stability of a power system on a real time basis. The methods are generally complex in nature and pose considerable computational burden on the EMS. An important issue with the use of analytical methods is the computational time, even with the state-of-the art processors.