Atlantic Electric´s Energy Management System Control with Operator Interaction

Atlantic Electric (AE) is an electric utility serving 375,000 customers in Southern New Jersey. AE is in the process of installing a new real time Energy Management System (EMS) which will monitor, control and analyze conditions on our Generation/Transmission Network. Remote Terminal Units (RTU), installed at our generating stations and major substations, collect required data and transmit this data to the control EMS computer. The Load Dispatchers monitor the network from their consoles and perform required Supervisory Control. The control signals are sent from the EMS computer through the RTUs to the controllable devices. Generator control signals are transmitted from the Pennsylvania-Jersey-Maryland (PJM) power pool computer through the EMS computer to the generators. Additional Security Analysis programs continually check for network overloads and contingency overloads resulting from possible loss of generators, transmission lines, and substation buses. AE believes that its approach to the EMS development has been slightly unique. We have concentrated on the Man-Machine Interface, future expansion capability, Security Analysis, Corporate Computer Interface and PJM Computer Interface, while maintaining cost effectiveness. This paper will review our procedure to implement the EMS and detail application programs which aid AE in providing safe, reliable electricity to our customers by the most economical means possible.