Research of Intelligent Lead-acid Batteries Charger in Coal Mine

摘要

The scheme of intelligent lead-acid battery charger is studied, and the advantages and disadvantages of the 5 kinds of intelligent charger are compared and analyzed. A most intelligent and fast charger scheme is put forward. The intelligent charger has the advantages of bidirectional energy flow, small volume, light weight, convenient voltage regulation, small starting current, fast dynamic response, high intelligence, wide input voltage and fast charging. The intelligent charger is made up of various power conversion units. PWM technology is adopted to transform the input three-phase AC380V/AC660V to the DCOV to DC550V through voltage transformation. The intelligent charger scheme is novel, advanced in technology and superior in performance. It can be popularized and applied in the coal mine industry.