Title :
Improvement of dynamic characteristic for V/f controlled induction motor drive system
Author :
Yaqiong Liu ; Piepenbreier, Bernhard
Author_Institution :
Dept. of Electr. Drives & Machines, Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
This paper presents a method for improvement of the dynamic characteristic for V/f controlled induction machines. The basic control structure is the open-loop V/f control with voltage-drop compensation and slip compensation. Additionally, a new current damper control is utilized for suppressing the dynamic oscillation. The improvement of the current control is based on complete modal synthesis. In order to analyze the dynamic characteristic, the complex control system is built in a mathematical model and the eigenvalue loci theory is applied. The result of the analysis is proved by experiments.
Keywords :
MIMO systems; PWM invertors; control system synthesis; electric current control; induction motor drives; machine vector control; current control; dynamic characteristic; induction motor drive system; modal synthesis; open loop V/f control; slip compensation; voltage drop compensation; Control systems; Current control; Eigenvalues and eigenfunctions; Induction motors; Mathematical model; Voltage control; V/f control; complete modal synthesis; damper current control; eigenvalue study; induction machine; slip compensation; stability analysis; voltage-drop compensation;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2014 International Symposium on
Conference_Location :
Ischia
DOI :
10.1109/SPEEDAM.2014.6871908
