electromagnetic interference proof system for local transport vehicles with electric drive

摘要

PCT No. PCT/US96/10279 Sec. 371 Date Feb. 13, 1996 Sec. 102(e) Date Feb. 13, 1996 PCT Filed Jun. 13, 1996 PCT Pub. No. WO96/41728 PCT Pub. Date Dec. 27, 1996An electric power vehicle includes a propulsion system connected to a direct current (DC) source via a supply line. The propulsion system converts the DC supplied via the supply line to an AC electrical power to operate an AC motor at a desired level. An electromagnetic interference detection system for the vehicle includes an EMI processor connected to a current transducer and the propulsion system. The transducer detects AC signals appearing on the supply line and provides an output to the EMI processor. The EMI processor determines the frequency, amplitude and duration of the detected AC signals and causes the propulsion system to adjust the AC electrical power supplied to the motor as a function thereof.