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Novel Structure of 3-Phase Phase-Locked Loop with Stiffness against Disturbance  

Bae Byung-Yeol (명지대 공대 전기공학과)
Han Byung-Moon (명지대 공대 전기공학과)
Park Yong-Hee (명지대 공대 전기공학과)
Cho Yun-Ho (명지대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.55, no.1, 2006 , pp. 39-46 More about this Journal
Abstract
PLL is a key item of power converter for power quality compensation and power flow control. This paper proposes a novel 3-phase PLL that is composed of ALC and PI controller. The operational principle was investigated through theoretical approach, and the performance was verified through computer simulations with MATLAB and experimental works with TMS320VC33 DSP board. The proposed 3-phase PLL shows accurate performance under the voltage disturbances such as sag, harmonics. phase-angle jump, and frequency change.
Keywords
PLL(Phase-Locked Loop); ALC(Adaptive Linear Combiner); Delta-rule; PI controller; Voltage Disturbance;
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