Title :
LAN-based load shedding controller (LSC) for the oil refinery facility
Author :
Qiu, Bin ; Liu, Yilu ; Chan, Eng Kiat ; Cao, Lawrence LJ
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Load shedding takes place as an emergency measure in case of falling frequency conditions or loss of power generation. It is therefore important that response to emergency situations is as quickly as possible in order to achieve fast system recovery with minimum system disturbance. This paper presents a local area network (LAN) based load shedding controller (LSC). Advanced information technologies such as LAN, TCP/IP socket communication and ODBC database manipulation are employed for the load shedding design. Real time load and generation information will be transmitted to the LSC via LAN within the substation directly. LSC evaluates trigger signals and sends the control signals to the RTUs (remote terminal unit) via LAN to shed the loads. It gives operators privilege to share the control in the load shedding policy. Actual site tests showed that LAN-based LSC could achieve a load shedding response time less than 200 ms. This system has been successfully implemented in an oil refinery facility power plant
Keywords :
client-server systems; industrial power systems; load shedding; local area networks; oil refining; power system control; substations; telecontrol; transport protocols; LAN; LAN-based load shedding controller; ODBC database manipulation; TCP/IP socket communication; client server system; emergency measure; falling frequency conditions; fast system recovery; load shedding controller; load shedding policy; local area network; loss of power generation; minimum system disturbance; oil refinery facility; remote terminal unit; substation; trigger signals; Communication system control; Frequency measurement; Information technology; Local area networks; Loss measurement; Oil refineries; Power generation; Power measurement; System recovery; TCPIP;
Conference_Titel :
Power Engineering Society Winter Meeting, 2001. IEEE
Conference_Location :
Columbus, OH
Print_ISBN :
0-7803-6672-7
DOI :
10.1109/PESW.2001.916973
