Prospects for Security Control in Electric Power Systems

Abstract The current state of implementation of security functions in power system control centres is briefly reviewed, pointing out the particular needs for security control. Then, some promising techniques for the future in this field are presented, such as the implementation of on-line “compact” optimal power flows, the inclusion of transient stability constraints into on-line optimal power flows, the principle of a secure and economic automatic generation control, the principle of a secure and economic voltage control, the use of computer assisted changes in network topology to meet security. Conclusion includes data and computer needs necessary to perform on-line security control in the next few years.