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Multilevel converters for large electric drives
| 题名： | Multilevel converters for large electric drives |
| 作者： | Peng, F.Z.;Tolbert, L.M.; |
| 关键词： | 33 ADVANCED PROPULSION SYSTEMS ; ELECTRIC-POWERED VEHICLES; HYBRID ELECTRIC-POWERED VEHICLES; ELECTRIC MOTORS; POWER SUPPLIES; ELECTRIC CONTROLLERS; DC TO DC CONVERTERS; INVERTERS; FUEL CELLS |
| 摘要： | Traditional two-level high frequency pulse width modulation (PWM) inverters for motor drives have several problems associated with their high frequency switching which produces common-mode voltage and high voltage change (dV/dt) rates to the motor windings. Multilevel inverters solve these problems because their devices can switch at a much lower frequency. Two different multilevel topologies are identified for use as a converter for electric drives, a cascade inverter with separate dc sources and a back-to-back diode clamped converter. The cascade inverter is a natural fit for large automotive all electric drives because of the high VA ratings possible and because it uses several levels of dc voltage sources which would be available from batteries or fuel cells. The back to back diode damped converter is ideal where a source of ac voltage is available such as a hybrid electric vehicle. Simulation and experimental results show the superiority of these two converters over PWM based drives. |
| 总页数： | 9p |
| 报告类型： | 科技报告 |
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