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Design and control of a reconfigurable high‐gain battery integrated dc‐dc boost converter for time‐varying loads
International Journal of Circuit Theory and Applications ( IF 1.581 ) Pub Date : 2020-10-15 , DOI: 10.1002/cta.2888
Anmol Ratna Saxena; Deepak Kumar

In this paper, a reconfigurable, low component count high‐gain battery integrated dc‐dc boost converter (HGBIBC) is proposed for power management of time‐varying loads (TVLs). The battery is integrated between the two switches and the two diodes, which provides an inherent feature of pulse‐charging and pulse‐discharging of the battery, thereby increasing its lifetime. The converter operation, in various modes, is explained, and the steady‐state and time‐domain analyses are performed to establish the high‐voltage gain feature of the converter, which makes it suitable for interfacing sources with low output voltages. The guidelines for the design of converter parameters and selection of switching devices are presented. Small‐signal models are derived, and the relative gain array (RGA) analysis is performed, which revealed that the control loops are of decoupled nature and hence the controllers, for each loop, can be designed independently, as in the case of a single‐input single‐output (SISO) converter. The PID controllers are designed to simultaneously regulate the load voltage and source current. The theoretical concepts developed in the paper are validated experimentally using the laboratory prototype of the converter. The experimental results, demonstrating power management, at load voltages of 60 and 48 V are presented, which are found to be in close correlation with the theoretical and simulation studies.
更新日期:2020-10-17

 

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