The Design and Experiment of Energy Saving Power-Assisted System of Portable Electric Tool

Abstract:

Since the heavy current and frequent start-stop of portable electric tool, the special energy saving power assisted system is designed. The method for solving these problems is to make a binary power supply with super capacitor and lead-acid battery. The super capacitor provides power assistance to increase output current when starting and recycles inertia energy when stopping, the energy distribution is done by control system. In this paper, the operation principle and control circuit are described and the effect of the proposed system is tested by experiment. The experiment results show that the proposed system double the output current and save energy around 20%. In this way, the problems of short-lifetime and inefficient power take off are solved and this energy saving power assisted system is also appropriate to electric mobile and so on which employ secondary electric power supply as power.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1251-1256
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1251
• Online since: February 2012
• Authors: Xin Sheng He, Chun Fu Gao, Bin Wang, Chu Xiong Xie
• Keywords: Electric Tool, Energy Recycle, Lead-Acid Battery, Super-Capacitor (SC)

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