robust, efficient electric machine design
DESCRIPTION
Electric machines are used in novel applications around the world, driven by the need for greater power efficiency in the transportation, aerospace and defense, and industrial automa-tion industries. The automotive sector focuses on the need for hybrid and electric vehicle technology to meet stringent miles-per-gallon standards. The aerospace and defense industry concentrates on replacing existing aircraft power transfer technologies (such as the central hydraulic system) with fault-tolerant electric power, in which major subsystems — including engine starting, primary flight control actuation, pumps and braking — are controlled and driven electronically. In the United States’ industrial sector, more than 40 million electric motors convert electricity into useful work in manufacturing operations. Industry spends over $30 billion (US) annually on electricity dedicated to electric motor-driven systems that drive pumps, fan and blower systems, and air compression.TRANSCRIPT
© 2011 ANSYS, Inc. April 2, 2014 1
Advanced Simulation Solutions for Robust and Efficient Electrical Machine Design
© 2011 ANSYS, Inc. April 2, 2014 2
Multi Physics analysis of component
Co-Simulation
System Level Simulation
Complex Motor/Drive System Requires Integrated Simulation Environment
Thermal Feedback
Electric Machine Design Challenges
© 2011 ANSYS, Inc. April 2, 2014 3
n mag
dvJ
Loss
2
Design Challenges: Loss Calculation
5.1
max
2
max
2
max fBKfBKfBK
PPPLossCore
ech
ech
© 2011 ANSYS, Inc. April 2, 2014 4
FEA Based Electric Machines Design Toolkit
© 2011 ANSYS, Inc. April 2, 2014 5
Dynamic FE-Based Circuit Model and Control
0
w+
V_ROTB1
EQU
FML1
S1:=if (Time<=0.01, 1, 0)
R7
R6
R5
R=0.2ohm
R1
R2
R3 L4
L3
L2 n1
n2
n3
m1
SimulatorModel=PMSM_DQ_GNurbsA B C
N
U_MOT
TS1
TS2
TS3
0.00 10.00 20.00 30.00 40.00 50.00Time [ms]
-125.00
-75.00
-25.00
25.00
75.00
125.00
Y1
Curve Info
InducedVoltage(PhA)Imported
InducedVoltage(PhB)Imported
InducedVoltage(PhC)Imported
U_MOT.V_ATR
U_MOT.V_BTR
U_MOT.V_CTR
0.00 10.00 20.00 30.00 40.00 50.00Time [ms]
-200.00
-75.00
50.00
175.00
Y1 [A
]
Curve Info
L2.ITR
L3.ITR
L4.ITR
Current(PhA)Imported
Current(PhB)Imported
Current(PhC)
𝑢𝑑 − 𝑖𝑑 𝑅𝑠 − 𝑑𝜑𝑑
𝑑𝑡 + 𝑝 ∙ 𝜔𝑚𝑒𝑐ℎ ∙ 𝜑𝑞 = 0
𝑢𝑞 − 𝑖𝑞 𝑅𝑠 − 𝑑𝜑𝑞
𝑑𝑡− 𝑝 ∙ 𝜔𝑚𝑒𝑐ℎ ∙ 𝜑𝑑 = 0
𝜏𝑚𝑎𝑔 − 1.5 ∙ 𝑝 ∙ 𝜑𝑑 ∙ 𝑖𝑑 − 𝜑𝑞 ∙ 𝑖𝑞 =0
0
w+
V_ROTB1
EQU
FML1
S1:=if (Time<=0.01, 1, 0)
R7
R6
R5
R=0.2ohm
R1
R2
R3 L4
L3
L2 n1
n2
n3
m1
SimulatorModel=PMSM_DQ_GNurbsA B C
N
U_MOT
TS1
TS2
TS3
0.00 10.00 20.00 30.00 40.00 50.00Time [ms]
-125.00
-75.00
-25.00
25.00
75.00
125.00
Y1
Curve Info
InducedVoltage(PhA)Imported
InducedVoltage(PhB)Imported
InducedVoltage(PhC)Imported
U_MOT.V_ATR
U_MOT.V_BTR
U_MOT.V_CTR
0.00 10.00 20.00 30.00 40.00 50.00Time [ms]
-200.00
-75.00
50.00
175.00
Y1 [A
]
Curve Info
L2.ITR
L3.ITR
L4.ITR
Current(PhA)Imported
Current(PhB)Imported
Current(PhC)
© 2011 ANSYS, Inc. April 2, 2014 6
The Thermal Problem: Effect of Temperature on Dynamic Demagnetization
THTHTh
TBTBTb
ciii
rii
/
/
© 2011 ANSYS, Inc. April 2, 2014 7
Motor Noise and Vibration (N&V) – Mapping Magnetic Forces
© 2011 ANSYS, Inc. April 2, 2014 8
ANSYS Simplorer System Design
PP := 6
ICA:
A
A
A
GAIN
A
A
A
GAIN
A
JPMSYNCIA
IB
IC
Torque JPMSYNCIA
IB
IC
Torque
D2D
ANSYS Maxwell 2D/3D FEA Analysis
HF/SI
HFSS, Q3D, SIWave
RLCG Parasitics
ANSYS
Mechanical Thermal/Stress
ANSYS CFD Thermal
Model order Reduction
Co-simulation
Field Solution
FE Model Generation
Optimetrics
LS-DSO
ANSYS Electromechanical System Solution
SCADE Suite Control Systems
Embedded Design
Push Back Excitations
PExprt Magnetics
RMxprt Machine Design
© 2011 ANSYS, Inc. April 2, 2014 9
Learn More
Magna Electronics See how Magna Electronics uses the
Electric Machine Design Methodology
Link to Recorded Webcast
General Motors See how General Motors uses the
Electric Machine Design Methodology
Link to Recorded Webcast
General Motors See how General Motors uses the
Electric Machine Design Methodology Link to White Paper