| 摘要 |
An energy management system (1000) for a mining machine comprises an alternator (1100). The alternator (1100) can be mechanically coupled to an internal combustion engine. Alternator (1000) can generate AC signals, thereby converting mechanical energy from the internal combustion engine to electrical energy. A rectifier (1150) can provide DC signals to a DC bus (1175). A plurality of IGTB inverters (1500, 1600, 1700, 1800) can be adapted to drive a plurality of AC traction motors (1900, 1950). A circuit, comprising an IGTB chopper circuit, having one or more IGTB transistors (1300, 1350), is adapted to control the dissipation of energy, generated by the traction motors (1900, 1950) when the machine is operating under retard. The dissipation takes place in the resistor (1400). |
