Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2007.07a
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- Pages.77-79
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- 2007
Improvement Control of Power Quality of Grid-Tied PCS for Fuel Cell System
연료전지용 계통연계형 전력변환기의 전력품질개선제어
Abstract
The phase angle of the utility voltage is used in current control of grid-tied fuel cell power converter. Therefore if the detection of phase angle is a problem, Current control is affected by the distorted phase angle. This paper presents a problem of synchronous reference frame PLL algorithm for single-phase systems and proposes compensated synchronous reference frame PLL algorithm. The proposed method helps power quality improvement of grid-tied fuel cell power converter under distorted utility conditions. Simulation and experimental results are presented to demonstrate the validity of the proposed method.
Keywords