Dynamic performance estimation of stator voltage regulator in rotary exciter system with DC exciter

• Main Authors: Stojić Đorđe, Veinović Slavko, Milinković Milan, Ćirić Zoran, Joksimović Dušan, Milojčić Nemanja, Arnautović Dušan
• Format: Article
• Language: English
• Published: Electrical Engineering Institute Nikola Tesla 2011-01-01
• Series: Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
• Subjects: exciter system; field current; stator voltage; DC exciter; thyristor rectifier
• Online Access: http://scindeks-clanci.ceon.rs/data/pdf/0350-8528/2011/0350-85281121169S.pdf

In this paper, procedure for AVR parameter estimation is proposed, based on step responses when synchronous generator in idle run. The exciter system includes AVR, thyristor rectifier and DC exciter. AVR is realized in the form of cascade control structure with two control loops. PID controller in the outer loop represents the primary controller. P controller in the inner loop represents secondary controller which enables the faster field current response time. The aim of procedure is to determine equivalent gain of PID controller and thyristor rectifier. The measurements used in the parameter estimation procedure are taken from fossil power plant 'Kolubara A', aggregate A5.