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Adaptive Control of Peak Current Mode Controlled Boost Converter Supplied by Fuel Cell
Bjazic, Toni,Ban, Zeljko,Peric, Nedjeljko The Korean Institute of Power Electronics 2013 JOURNAL OF POWER ELECTRONICS Vol.13 No.1
Adaptive control of a peak current mode controlled (PCM) boost converter supplied by a PEM fuel cell is described in this paper. The adaptive controller with reference model and signal adaptation is developed in order to compensate the deviation of the response during the change of the operating point. The procedure for determining the adaptive algorithm's weighting coefficients, based on a combination of the pole-zero placement method and an optimization method is proposed. After applying the proposed procedure, the optimal adaptive algorithm's weighting coefficients can be determined in just a few iterations, without the use of a computer, thus greatly facilitating the application of the algorithm in real systems. Simulation and experimental results show that the dynamic behavior of a highly nonlinear control system with a fuel cell and a PCM boost converter, can fairly accurately be described by the dynamic behavior of the reference model, i.e., a linear system with constant parameters.
DISCRETE MULTIPLE HILBERT TYPE INEQUALITY WITH NON-HOMOGENEOUS KERNEL
Ban, Biserka Drascic,Pecaric, Josip,Peric, Ivan,Pogany, Tibor Korean Mathematical Society 2010 대한수학회지 Vol.47 No.3
Multiple discrete Hilbert type inequalities are established in the case of non-homogeneous kernel function by means of Laplace integral representation of associated Dirichlet series. Using newly derived integral expressions for the Mordell-Tornheim Zeta function a set of subsequent special cases, interesting by themselves, are obtained as corollaries of the main inequality.
Computation of Two-Fluid Flows by Finite Volume Method and Discussion on Wave Breaking
SEUNG-HYUN KWAG(곽승현),MILOVAN PERIC 한국해양공학회 2000 韓國海洋工學會誌 Vol.14 No.1
수중날개를 대상으로 任意로 변형하는 二層流의 數値計算을 수행하였다. 計算은 非構造格子와 接面포착법을 이용하여 白山表面의 형상을 결정하였다. 本 硏究에 의하면 낮은 물속 깊이와 높은 프루드수에서 碎波현상이 발생하였다. 수중날개에 대하여 碎波형상의 效果를 연구하였고, 실험값과 계산값을 相互比較 함으로서 格子의 敏感性을 數値的으로 확인하였다.