Abstract
This paper proposes a hybrid power supply system design and control strategies to enhance the energy regulation capability. This study is motivated because some connected loads such as brushless dc motor-driven circuit which may need a significant output current supplied by the battery power, possibly leading to unexpected impacts and consequences. To cope with such energy supply problems, the utilization of supercapacitors is suggested as an energy buffer along with the leakage inductance for the energy storage. This is further aided by a controller design so as to perform a power dispatch to ensure a better energy regulation, by which those batteries sources can be more effectively protected. To validate this proposed method, both circuit analysis and hardware realization have been completed under different scenarios. Experimental results gained from these tests help support the effectiveness of the approach for hand-held tools applications.
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