Application of a multivariable feedback linearization scheme for rotor angle stability and voltage regulation of power systems

• Published in: IEEE transactions on power systems Vol. 14; no. 2; pp. 620 - 628
• Main Authors: Akhrif, O., Okou, F.-A., Dessaint, L.-A., Champagne, R.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.05.1999; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Control; Control systems; Damping; Electric potential; Electrical engineering. Electrical power engineering; Electrical machines; Exact sciences and technology; Feedback linearization; Hydraulic turbines; Linear feedback control systems; Nonlinear control systems; Power electronics, power supplies; Regulation and control; Regulators; Rotors; Stability; Synchronous generators; Terminals; Voltage; Voltage control; Waveform; Synchronous machine; Stability; Simulation; Feedback; System response; Voltage regulation; Non linear control; Power electronics; Controller; Mathematical model; Hydraulic turbine
• ISSN: 0885-8950; 1558-0679
• DOI: 10.1109/59.761889

This paper investigates the application of a nonlinear controller to the multi-input multi-output model of a system consisting of a hydraulic turbine and a synchronous generator. The controller proposed is based on a feedback linearization scheme. Its main goal is to control the rotor angle as well as the terminal voltage, to improve the system's stability and damping properties under large disturbances and to obtain good post-fault voltage regulation. The response of the system is simulated in the presence of a short-circuit at the terminal of the machine in two different configurations and compared to the performance of a standard IEEE type 1 voltage regulator, PSS and a PID speed regulator.