IEEE Power Electronics Letters · 2003 · 89 citations · 15 references
EngineeringAutomotive EngineeringElectrical EngineeringElectric MachinesPower ElectronicsPropulsionConverter TopologiesElectric DrivesElectric PowertrainsElectric Traction MotorsPermanent Magnet MachinesPower Electronics For Hybrid VehiclesConverter Topology DesignHybrid Electric VehiclesInterior Permanent Magnet MachinesInterior Permanent Magnet Synchronous MachinesInverter DesignMotor PerformanceMotor Performance EvaluationPower Density
The 42 V Powernet standard has driven extensive research into electric machine design for hybrid vehicles. This letter examines how a cascaded inverter topology can improve overall system and motor performance. The cascaded inverter boosts high‑speed power density of an induction motor by 73 % and, for an interior permanent magnet motor, raises low‑speed torque by 9 % and high‑speed power by up to 300 %, all without raising phase current.
The adoption of the 42 V Powernet standard has focused substantial research effort into the design of electric machines for hybrid vehicles. This letter investigates the potential performance benefits afforded by adopting a cascaded inverter topology on the overall system and motor performance. As a particular design example, this letter shows that a cascaded inverter driving an open winding motor can increase the high-speed power density of an induction motor by 73%. For an interior permanent magnet motor, the cascaded topology can increase low-speed torque by 9% and high-speed power by up to 300%. In all cases, the power increase is achieved without increasing the phase current over a more traditional system.
15
Power electronics converters, applications and design
F.V.P. Robinson · Microelectronics Journal · 1997 · 5.1K citations