전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 1999년도 전력전자학술대회 논문집
- /
- Pages.671-674
- /
- 1999
확장 칼만 필터를 이용한 PWM 컨버터 센서리스 제어기법
Sensorless Control of PWM Converter Using Extended Kalman Filter
초록
In the PWM converter, PLL(Phase Locked Loop) is usually used as a tool which senses the angle of input voltage. This is sensitive to nois and needs additional hardware. In this work, we propose a sensorless control scheme of PWM converter using EKF(Extended Kalman Filter). EKF estimates a phase angle of input voltage from nonlinear state equation using measured phase currents. We control power factor and DC-link voltage utilizing the estimated phase angle. We demonstrate the effectiveness of the proposed estimation algorithm through simulations.
키워드