IEEE Industry Applications Magazine · 2005 · 48 citations · 14 references
EngineeringAutomotive EngineeringElectrical EngineeringAir ConditioningElectric MachinesHvac SystemsElectric DrivesElectric Motor Drive SystemsElectric Motor DrivesElectric MotorsMachine CoolingPermanent Magnet MachinesAir Conditioning EfficiencyAuxiliary Power SystemsBrushless Direct Current Motor DrivesCompressorsDrive System IntegrationFlexible PackagingPermanent Magnet Brushless MotorsVariable Speed Operation
This article describes a semiintegrated permanent-magnet (PM) brushless drive for a 42-V electric compressor for automotive heating, ventilation, and air conditioning (HVAC). Electric compressors have the advantages of low refrigerant emissions, flexible packaging, and efficient variable-speed operation. These are intended for vehicles where the engine shuts off during stops, as in "stop and go" (starter generator), or for vehicles with auxiliary power units (fuel cells). A low-cost, semiintegrated position sensorless motor controller has been designed, build and tested over a wide speed range with overall system efficiencies of 85% or more over a significant portion of its operating range. Issues related to sensorless operation, packaging and thermal management, EMI abatement and performance of the drive are discussed.
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Four-quadrant sensorless brushless ECM drive
R.C. Becerra, Thomas M. Jahns, M. Ehsani · 2002 · 165 citations
Engineering, Electrical Engineering, Mechanical Engineering +17