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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Institute of Information Scientists and Engineers Journal of Electrical Engineering and Information Science Journal of Electrical Engineering and Information Science Vol.4 No.6
- 발행연도
- 1999.12
- 수록면
- 760 - 768 (9page)
이용수
초록· 키워드
오류제보하기
Analysis and design of a phase-locked loop(PLL) are presented for the power factor control of grid-connected three-phase power generation systems. The dynamic characteristics of the closed loop PLL system with a second order is investigated and the optimization method is discussed. In particular, the performance of the PLL in the three-phase system is analyzed in the distorted utility conditions such as the phase unbalancing, harmonics, and offset caused by the nonlinearities and measurement errors. The PLL technique for the three-phase system is implemented in software of a digital signal processor(DSP) to verify the analytic results and the experiments are carried out for various utility conditions. Finally, this technique is applied to the grid-connected photovoltaic power generation system with the current-controlled PWM inverter. The experimental results well show its phase tracking capability in the three-phase grid-connected operation.
목차
Abstract
Ⅰ. Introduction
Ⅱ. System descriptions
Ⅲ. Closed loop system
Ⅳ. Error analysis for distorted utility
Ⅴ. Experiments
Ⅵ. Conclusions
References
저자소개
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