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WEMPECWEMPEC
Electric Drives Research at Electric Drives Research at UWUW Madison for Future VehicleMadison for Future Vehicle
Electric Drives Research at Electric Drives Research at UWUW Madison for Future VehicleMadison for Future VehicleUWUW--Madison for Future Vehicle Madison for Future Vehicle
Propulsion SystemsPropulsion SystemsUWUW--Madison for Future Vehicle Madison for Future Vehicle
Propulsion SystemsPropulsion Systemsp yp yp yp y
Prof. Thomas M. JahnsProf. Thomas M. JahnsProf. Thomas M. JahnsProf. Thomas M. JahnsProf. Thomas M. JahnsProf. Thomas M. JahnsUniversity of Wisconsin University of Wisconsin -- MadisonMadison
Prof. Thomas M. JahnsProf. Thomas M. JahnsUniversity of Wisconsin University of Wisconsin -- MadisonMadison
2009 Engine Research Center Symposium2009 Engine Research Center Symposium2009 Engine Research Center Symposium2009 Engine Research Center SymposiumJune 10, 2009June 10, 2009June 10, 2009June 10, 2009
T.M. Jahns 2009 T.M. Jahns 2009
WEMPEC CollaborationW ld id
WEMPEC CollaborationW ld id- Worldwide -- Worldwide -
Wisconsin Electric Machines and Power Electronics ConsortiumWisconsin Electric Machines and Power Electronics ConsortiumWisconsin Electric Machines and Power Electronics ConsortiumWisconsin Electric Machines and Power Electronics Consortium
PrePre--competitive university research funded solely by industrycompetitive university research funded solely by industry
Faculty teamFaculty team
PrePre--competitive university research funded solely by industrycompetitive university research funded solely by industry
Faculty teamFaculty teamyyProf. Bob Lorenz Prof. Bob Lorenz -- Control of drives and convertersControl of drives and converters
Prof. Tom Jahns Prof. Tom Jahns -- Motor drives and power electronicsMotor drives and power electronics
yyProf. Bob Lorenz Prof. Bob Lorenz -- Control of drives and convertersControl of drives and converters
Prof. Tom Jahns Prof. Tom Jahns -- Motor drives and power electronicsMotor drives and power electronics
Prof. Giri Venkataramanan Prof. Giri Venkataramanan -- Power electronic topologiesPower electronic topologies
em. Prof. Tom Lipo em. Prof. Tom Lipo -- Electric machines and power electronicsElectric machines and power electronics
ff
Prof. Giri Venkataramanan Prof. Giri Venkataramanan -- Power electronic topologiesPower electronic topologies
em. Prof. Tom Lipo em. Prof. Tom Lipo -- Electric machines and power electronicsElectric machines and power electronics
ffem. Prof. Don Novotny em. Prof. Don Novotny -- Electric machines and drivesElectric machines and drives
em. Prof. Bob Lasseter em. Prof. Bob Lasseter -- Power electronics in utility applicationsPower electronics in utility applications
More than forty graduate students M S & Ph DMore than forty graduate students M S & Ph D
em. Prof. Don Novotny em. Prof. Don Novotny -- Electric machines and drivesElectric machines and drives
em. Prof. Bob Lasseter em. Prof. Bob Lasseter -- Power electronics in utility applicationsPower electronics in utility applications
More than forty graduate students M S & Ph DMore than forty graduate students M S & Ph D More than forty graduate students, M.S. & Ph.D.More than forty graduate students, M.S. & Ph.D.
>65 sponsoring companies from around the world>65 sponsoring companies from around the world
More than forty graduate students, M.S. & Ph.D.More than forty graduate students, M.S. & Ph.D.
>65 sponsoring companies from around the world>65 sponsoring companies from around the world
10 June 2009 UW-Madison Engine Research Center Symposium 2
OutlineOutlineOutlineOutlineAdvanced PM MachinesAdvanced PM MachinesAdvanced PM MachinesAdvanced PM Machines
HighHigh--PowerPower--Density IPM MachinesDensity IPM Machines
C t t d Wi di SPM M hiC t t d Wi di SPM M hi
HighHigh--PowerPower--Density IPM MachinesDensity IPM Machines
C t t d Wi di SPM M hiC t t d Wi di SPM M hi Concentrated Winding SPM MachinesConcentrated Winding SPM Machines
Advanced Power ElectronicsAdvanced Power Electronics
Concentrated Winding SPM MachinesConcentrated Winding SPM Machines
Advanced Power ElectronicsAdvanced Power ElectronicsAdvanced Power ElectronicsAdvanced Power Electronics Integrated Modular Motor DrivesIntegrated Modular Motor Drives
Advanced Power ElectronicsAdvanced Power Electronics Integrated Modular Motor DrivesIntegrated Modular Motor Drives
SelfSelf--Sensing Motor ControlSensing Motor Control SelfSelf--Sensing Motor ControlSensing Motor Control
VehicleVehicle--toto--Grid Vehicle TestbedGrid Vehicle TestbedVehicleVehicle--toto--Grid Vehicle TestbedGrid Vehicle Testbed
10 June 2009 UW-Madison Engine Research Center Symposium 3
PM Synchronous Machine TypesPM Synchronous Machine TypesPM Synchronous Machine TypesPM Synchronous Machine Types
Nd-axis
Flux Barriers
Saturable Bridges
q-axisN
S
q-axis
SN
Flux Barriers
d axis
S
N
SN
q axis
Soft Iron Material
d-axisN S NS
N
Surface PMSurface PM
S N Soft Iron Material
Permanent Magnet S
Interior PM
Surface PM machines are dominant class of PM Surface PM machines are dominant class of PM machines in world todaymachines in world today
Surface PM machines are dominant class of PM Surface PM machines are dominant class of PM machines in world todaymachines in world today
Surface PMSurface PM Interior PM
machines in world todaymachines in world todaymachines in world todaymachines in world todayInterior PM machines bury magnets inside rotor, Interior PM machines bury magnets inside rotor,
creating a salientcreating a salient--pole synchronous machinepole synchronous machineInterior PM machines bury magnets inside rotor, Interior PM machines bury magnets inside rotor,
creating a salientcreating a salient--pole synchronous machinepole synchronous machine
10 June 2009 UW-Madison Engine Research Center Symposium 4
creating a salientcreating a salient--pole synchronous machinepole synchronous machinecreating a salientcreating a salient--pole synchronous machinepole synchronous machine
IPM Machine Rotor ExamplesIPM Machine Rotor ExamplesIPM Machine Rotor ExamplesIPM Machine Rotor Examplespppp
10 June 2009 UW-Madison Engine Research Center Symposium 5
Torque/Power Operating EnvelopesTorque/Power Operating EnvelopesTorque/Power Operating EnvelopesTorque/Power Operating Envelopes
T ratedConstant Power Range P =Te rConstant Power RegimeConstant Power Regime
ueTe Pow
er
d ratedHigh Constant Torque RegimeConstant Torque Regime
Torq
u
Prated= Te
rated
gSpeed
Regime
PM machines are excellent for applications emphasizing PM machines are excellent for applications emphasizing PM machines are excellent for applications emphasizing PM machines are excellent for applications emphasizing
Rotor Speed max = F
pp p gpp p goperation in constantoperation in constant--torque regime (e.g., servos)torque regime (e.g., servos)
pp p gpp p goperation in constantoperation in constant--torque regime (e.g., servos)torque regime (e.g., servos)
PM machines often cause problems in applications PM machines often cause problems in applications PM machines often cause problems in applications PM machines often cause problems in applications
10 June 2009 UW-Madison Engine Research Center Symposium 6
requiring wide ranges of constant power (e.g., traction)requiring wide ranges of constant power (e.g., traction)requiring wide ranges of constant power (e.g., traction)requiring wide ranges of constant power (e.g., traction)
Automotive Starter/AlternatorAutomotive Starter/AlternatorC fC f
Automotive Starter/AlternatorAutomotive Starter/AlternatorC fC fDirect Drive ConfigurationDirect Drive ConfigurationDirect Drive ConfigurationDirect Drive Configuration
S/A rotor acts as flywheel
Torque converter converter inside rotor hub
Flywheel, alternator, starter, pulley, & possibly a belt
li i t deliminated
New P t
Eliminated P t
10 June 2009 UW-Madison Engine Research Center Symposium 7
Parts Parts
Automotive Starter/AlternatorAutomotive Starter/AlternatorAutomotive Starter/AlternatorAutomotive Starter/AlternatorPrototype IPM MachinePrototype IPM MachinePrototype IPM MachinePrototype IPM Machine
O t Di tO t Di t 272272O t Di tO t Di t 272272Outer Diameter:Outer Diameter: 272 mm272 mm
Rotor DiameterRotor Diameter 218 mm218 mm
Outer Diameter:Outer Diameter: 272 mm272 mm
Rotor DiameterRotor Diameter 218 mm218 mm
Active Length:Active Length: 60 mm60 mmActive Length:Active Length: 60 mm60 mm
Total LengthTotal Length 90 mm90 mm
No of Poles:No of Poles: 1212
Total LengthTotal Length 90 mm90 mm
No of Poles:No of Poles: 1212No. of Poles: No. of Poles: 1212
Total EM MassTotal EM Mass 15.6 kg15.6 kg
No. of Poles: No. of Poles: 1212
Total EM MassTotal EM Mass 15.6 kg15.6 kg
Unsat Saliency Ratio:Unsat Saliency Ratio: 4.94.9
PM RPM R 0 28T0 28T
Unsat Saliency Ratio:Unsat Saliency Ratio: 4.94.9
PM RPM R 0 28T0 28T10 June 2009 UW-Madison Engine Research Center Symposium 8
PM Remanence:PM Remanence: 0.28T0.28TPM Remanence:PM Remanence: 0.28T0.28T
50 kW IPM Traction Machine 50 kW IPM Traction Machine S ifi tiS ifi ti
50 kW IPM Traction Machine 50 kW IPM Traction Machine S ifi tiS ifi tiSpecificationsSpecificationsSpecification