| |
A THREE-PHASE PWM RECTIFIER WITHOUT VOLTAGE SENSORS
| [View]
[Download]
|
| Author(s) |
T. Ohnuki; 0. Miyashita; Philippe Lataire; Gaston Maggetto |
| Abstract |
A control scheme for a three-phase PWM rectifier without any voltage sensors is
proposed. Only two input line-currents are measured. In the PWM rectifier controller, all the voltage values required for control are estimated from the measured line currents and the calculated input reactor voltage values in the switch-modes of the rectifier circuit. The input reactor voltage can be 'obtained by a differentiator that produces the derivative of the line current. Another way of detection of the reactor voltage consists in the use of a secondary
winding wound on the input reactor instead of the differentiator. In this case, all the voltage values required for controlling the rectifier are estimated from the seCondary-winding voltage
with isolated condition between the main circuit and the controller. The proposed method is verified by experiment. This paper describes the estimation method and configuration of the controller, and discusses steady-state and transient performances of the rectifier. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 560.8 KB |
|
| Type |
Members Only |
| Date |
Last modified 2016-03-09 by System |
| |
 |