Power to the AC people

摘要

According to Richard Baxter of Hamech, UK distributor for Mitsubishi Forklift Trucks, the most significant development in warehouse trucks in recent years has been the addition of AC motors. Historically, DC power was the preferred option to power lift trucks because their low voltage systems — typically up to 80V — would have required expensive power semiconductors for conversion from DC to AC. The conversion also uses up energy which, considering the limited amount of energy stored in a battery, is very important to control.