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Input series out putparallel based multi-modular boost half bridge DC-DC converter with a dynamic control scheme

Journal of Beijing Institute of Technology 2014年第4期23卷 519-526页

作者： SOOMRO Amir Mahmood SYED Amjad Ali KHIZER Arbab Nighat 廖晓钟 manzoor muhammad farhan School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology JamshoroSindhPakistan School of Mechatronics Beijing Institute of Technology

Multi-modular system plays an important role in power system architecture because low voltage and low power converters can be connected in any combination parallel or series at input/ output side in order to obtained any given power system specifications. Multi-modular boost haft bridge DC-DC converter in the configuration of input series output parallel has been investigated in this paper. The boost half bridge DC-DC converters are connected in input series output parallel con- figuration in order to achieve equal input voltage sharing and output current sharing between the con- verters. This can be achieved with the help of dynamic control scheme which consists of two loops, a voltage loop and a current loop, for each module. Dynamic behavior of multi-modular converter configuration has been observe by varying the load condition. Moreover, the results obtained through multi-modular converter describe that the system has good dynamic and steady state response. Al- though two converter modules are focused in this paper but it can be modified to any number of modules.

关键词： boost haft bridge ( BHB ) input series output parallel ( ISOP ) input voltage sharing(IVS) multi-modular output current sharing (OCS)

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维普期刊数据库

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Input-parallel output-parallel configuration of boost half bridge DC-DC converter with control strategy

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Journal of Beijing Institute of Technology 2014年第1期23卷 47-52页

作者： SOOMRO Amir Mahmood KHAHRO Shahnawaz farhan KHASKHELI Murad Ali 廖晓钟 farhan manzoor School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology Institute of Physics University of Sindh

The concept of connecting two boost half bridge DC-DC converter modules in input-paral- lel output-parallel configuration is presented. The input-parallel-output-parallel （IPOP） converter consists of multiple boost half bridge （BHB） DC-DC converter modules which are connected in par- allel at the input and output side. This kind of converter is an attractive solution for high power ap- plications. The correlation between input current sharing （ICS） and output current sharing （OCS） of the IPOP converter basic modules is described. Two loop control strategies, consisting of input cur- rent loop and output voltage loop, have been developed to achieve equal ICS and OCS in this present work. The control strategy for the IPOP configuration of boost haft bridge DC-DC converter has been verified for different load conditions （half load and full load）, The IPOP system proposed here is comprising of two modules but it can be extended to three or more. The performance of the pro- posed system along with the control strategy is verified by simulation in MATLAB using Simpower tool. Finally the satisfactory simulation results are obtained.

关键词： boost half bridge ( BHB ) input current sharing ( ICS ) input-parallel output-parallel(IPOP) output current sharing (OCS)

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维普期刊数据库

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Simulation of multiphase boost DC-DC converter with the stable control strategy

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Journal of Beijing Institute of Technology 2013年第4期22卷 504-508页

作者： SOOMRO Amir Mahmood KHAHRO Shahnawaz farhan SYED Feroz Shah 廖晓钟 farhan manzoor School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology

The multiphase boost DC-DC converter with stable control strategy is presented. Multi- phase boost DC-DC converter is designed for high voltage and high power applications, and could be achieved by the adjustment of voltage doubler rectifiers on the secondary side of high frequency transformers. The stable control strategy for three phase boost DC-DC converter has been utilized during simulation in this study and this strategy can be extend to N-number of phases. The stable control strategy consists of only three voltage loops, which are sufficient for appropriate and efficient operation of three phase boost DC-DC converter. With the stable control strategy, the equal power balance sharing can be obtained between input and output. The stability of control strategy has been evaluated by simulating the multiphase boost DC-DC converter for the same and mismatch turn ratios of high frequency transformers. The simulation result is good and the objective of the strategy is a- chieved.

关键词： boost DC-DC converter high frequency transformer voltage doubler rectifier

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