Title :
Electro-mechanical subsynchronous resonance of a series capacitive compensated line start induction motor drive
Author_Institution :
Dept. of Electr. Eng., Tennessee Technol. Univ., Cookeville, TN, USA
Abstract :
The subsynchronous oscillation phenomena of an induction motor fed from a series compensated feeder line is investigated. With the aid of the D-decomposition technique and eigenvalue analysis, induction motor instability due to both electrical and electromechanical resonance are determined for variations in the impedance of the feeder and the series capacitor compensator. The influence of connecting power resistors across the series capacitors to mitigate the oscillations is also investigated. Computer simulation results of the starting transient and step load change are show to validate the results of the small signal analysis.<>
Keywords :
compensation; digital simulation; eigenvalues and eigenfunctions; electric drives; induction motors; starting; D-decomposition technique; computer simulation; eigenvalue analysis; electromechanical subsynchronous resonance; line start induction motor drive; motor instability; power resistors; series capacitive compensated; small signal analysis; starting transient; step load change; subsynchronous oscillation phenomena; Capacitors; Computer simulation; Eigenvalues and eigenfunctions; Impedance; Induction motors; Joining processes; Resistors; Resonance; Signal analysis; Transient analysis;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96659
