• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.11
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• pp.2049-2055
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• 2011

In this paper a new current control method is proposed for the discontinuous conduction mode of boost converter. The proposed method using a current gain feedforward compensation adjusts a measured inductor current value and then, calculated an average current precisely in the discontinuous conduction mode as well as continuous conduction mode. By applying the proposed method, the current measurement error is significantly reduced to 2% regardless of the operating points. The proposed method is analyzed and its performance is investigated in simulation. To verify the feasibility of the proposed scheme, a 10kW 3-phase interleaved boost converter was built and experimental results are matched to the simulation results.

• Proceedings of the KIPE Conference
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• 2011.07a
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• pp.91-92
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• 2011

단방향 DC-DC컨버터는 불연속 전도모드(Discontinuous Conduction Mode:DCM)구간에서 전류기준치와 실제 흐르는 평균전류와의 오차가 존재하여 MPPT추종이 어렵거나 불가하다. 따라서 본 논문은 전류제어를 하는데 전류오차율을 2%까지 최소화할 수 있는 전류게인 전향보상기법을 이용하여 DCM 구간에서도 98%이상의 MPPT효율로 MPPT수행이 가능함을 실험으로 증명하였다.