Jong-Hyun Lee, “비례공진 제어기를 이용한 계통연계형 인버터의 성능개선 기법,” 아주대학교 공학석사 학위 논문, 2013. > Paper

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Thesis Jong-Hyun Lee, “비례공진 제어기를 이용한 계통연계형 인버터의 성능개선 기법,” 아주대학교 공학석사 학위 논문, 2013.

2013

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This paper proposes a control method for grid-connected inverter under unbalanced and distorted grid voltage. The proposed

method can reduce the power ripple caused by the unbalanced grid voltage and compensate for the low-order harmonics such as

3rd, 5th, 7th of the output currents caused by the distortion of grid voltage. Proposed method replaces the four conventional PI

controllers with two PR controllers in the stationary frame to reduce the power ripple. PR controller which have high gain at the

specific frequency band can implement selective harmonic compensation without much computational requirements; the use of these

controllers simplifies the method. Both the simulated and experimental results agree well with the theoretical analysis.

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