Title :
Stability analysis of a CSI-fed inductor motor with digital vector controller
Author :
Tsuji, Mineo ; Yamada, Eiji ; Izumi, Katsuhiro ; Oyama, Jun
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagasaki Univ., Japan
Abstract :
A linear sampled-data model for a current source inverter (CSI)-fed induction-motor vector control system which is controlled digitally by a microprocessor is derived. The system stability is discussed from the viewpoints of sampling period, microprocessor computation time, and feedback parameters by examining the loci of dominant eigenvalues of the state transition matrix and the transient responses. A comparison between the sampled-data model and a continuous system model is given.<>
Keywords :
computerised control; eigenvalues and eigenfunctions; feedback; induction motors; invertors; microcomputer applications; stability; transient response; CSI-fed inductor motor; continuous system model; current source inverter; digital vector controller; dominant eigenvalues; feedback parameters; linear sampled-data model; microprocessor computation time; microprocessor controlled; sampling period; stability analysis; state transition matrix; transient responses; vector control; Control system synthesis; Digital control; Induction motors; Inductors; Inverters; Machine vector control; Microprocessors; Sampling methods; Stability analysis; State feedback;
Conference_Titel :
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE
Conference_Location :
Kyoto, Japan
DOI :
10.1109/PESC.1988.18221
