Title :
A study of equipment sizes and constraints for a unified power flow controller
Author :
Bian, J. ; Ramey, D.G. ; Nelson, R.J. ; Edris, A.
Author_Institution :
Westinghouse Power Generation Bus. Unit, Orlando, FL, USA
Abstract :
This paper provides a quantitative measurement of the benefit that a unified power flow controller (UPFC) can provide to increase firm power transfer between two large power systems. Included is a complete model for a UPFC control system that contains bus voltage control by the shunt inverter, real power transfer between the shunt and series inverters, and real and reactive power control for the transmission line into which the series inverter is inserted. A significant part of the model is representation of dynamic limits that coordinate injected current limits for the shunt inverter, power transfer limits between inverters, voltage injection limits for the series inverter, current limits for the series inverter, and line voltage limits for the transmission line. This paper contains a simple system simulation to demonstrate the coordinated dynamic control and illustrate issues that system planning engineers must consider in defining applications for a UPFC
Keywords :
DC-AC power convertors; controllers; invertors; load flow; load regulation; power system control; power system interconnection; power transmission lines; reactive power control; voltage control; bus voltage control; coordinate injected current limits; coordinated dynamic control; current limits; equipment constraints; equipment sizes; firm power transfer; line voltage limits; reactive power control; real power control; real power transfer; series inverters; shunt inverter; static synchronous compensator; transmission line; unified power flow controller; voltage control; voltage injection limits; Control system synthesis; Control systems; Fluid flow measurement; Inverters; Load flow; Power measurement; Power system measurements; Power system modeling; Power transmission lines; Voltage control;
Conference_Titel :
Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-3522-8
DOI :
10.1109/TDC.1996.545956