Transient excitation boosting at Grand Coulee Third Powerplant

Author

Osburn, Gary D. ; Lennon, Charles A., Jr.

Author_Institution

US Bur. of Reclamation, Denver, CO, USA

Volume

7

Issue

2

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

289

Lastpage

294

Abstract

The design, installation, testing, and operating experience of a transient excitation boosting (TEB) system at Grand Coulee Third Powerplant on the Columbia River in Washington state is described. The installed TEB system provides significant reactive power support to the northwest power system from this 4000 MVA hydroelectric powerplant. A microprocessor-based TEB module that interfaces to existing solid-state regulators on the six Third Powerplant generators and physically fits into the limited space available was designed. Redundancy, fail-safe circuitry, and complete status indication and alarms were designed into the TEB system from the start. Installation of the TEB system involved significant changes to the regulator wiring. Also significant were the amounts of control cabling and wiring changes needed in the existing plant control systems. Power system stabilizer (PSS) control system changes were necessary to make TEB and PSS control philosophies similar

Keywords

hydroelectric power stations; microcomputer applications; power station computer control; transients; 4000 MVA; Columbia River; Grand Coulee Third Powerplant; Washington state; alarms; fail-safe circuitry; hydroelectric power stations; microprocessor-based TEB module; power system stabilizers; reactive power support; redundancy; solid-state regulators; status indication; transient excitation boosting; Boosting; Control systems; Hydroelectric power generation; Power system transients; Reactive power; Regulators; Rivers; Solid state circuits; System testing; Wiring;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.136223

Filename

136223