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EME Series E-Motor Emulator

.Resolver simulation
.Encoding disk simulation
.Temperature simulation

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Model: EME

Summary

The E-Motor Emulator is a new type electronic load utilizing both power conversion technologies and high-power high-frequency switching devices to emulate port characteristics of electric motors. Based on an accurate dynamic mathematical model, the emulator can output the characteristics of electric motors under working conditions. It can serve as:

(1) An electronic load to the grid (at special power levels). Ideal for studying the characteristics of power system;

(2) An E-Motor Emulator to perform functionality, endurance, fault diagnosis, and safety protection testing. Ideal for the R&D process of motor controllers and frequency converters.

Test Items

E-motor emulation
Resolver simulation
Encoding disk simulation
Temperature simulation
Hall signal
Fault simulation

Advantages

Bidirectional energy flow
Fault simulation
Accurate simulation of dynamic characteristics
Serve as an AC power supply under synchronous generator mode
Emulate the working conditions of both permanent magnet synchronous motor & asynchronous motor
No vibration & low noise
Protection for DUT (device under test)
Standard communication interfaces
Response time: ≤1ms

Motor Models	Parameter Setting
PMSM model	D Axis inductance Ls=L_d
	Q Axis inductance L_q
	Stator resistance Rs
	Magnetic flux Ψ
	Mechanical moment of Inertia mech
	Friction coefficient
	Pole-pairs p
ASM model	Stator resistance Rs
	Rotor resistance Rr
	Stator leakage inductance Lls
	Rotor leakage inductance Llr
	Excitation inductance Lm
	Mechanical moment of Inertia mech
	Friction coefficient
	Pole-pairs p

Specifications & Parameter
Phase	3
Max. Current Slew Rate	2500A/ms
Rated Rotating Speed	0~100000RPM (standard)
Motor Steering	Clockwise/Counterclockwise
Motor Torque	Positive/Negative
Number of Pole-pairs	1~20
Resolver Excitation	3kHz~20kHz
Motor Leakage Inductance	50uH~2650uH
Current Frequency	0Hz~4000Hz (for rated current 300A model)
Current Frequency	0Hz~5000Hz (for rated current 600A model)
Stator Resistance	0Ω~5Ω
Rotor Dynamic Speed	dω/dt>10*10⁶rpm/ms
Motor Model	Synchronous/Asynchronous motor
Position Sensor	Resolver/Encoding disk/Hall sensor
Fault Simulation	Short circuit/Disconnect/Real-time error simulation
Temperature Sensor	4 channels, NTC or PTC
Communication Interface	RS485/CAN/LAN
Protection	Overload/DUT protection

*The specifications & parameters of the product above are subject to Kewell’s interpretation. Further notice will not be made for changes.

Experiment Data Comparison
Controller + E-Motor					Controller + E-Motor Emulator
Speed (Given)	Torque (Display)	Voltage (Actual)	Current (Actual)	Torque (Given)	Speed (Given)	Torque (Display)	Voltage (Actual)	Current (Actual)	Torque (Given)
100	305	33	79.7	300	100	298	34	77	300
300	305	91.3	80.3	300	300	302	90	78.3	300
500	306	145	80.6	300	500	301	145	78	300
700	307	201	81	300	700	298	200	80	300
1000	310	286	81.7	300	1000	305	287	79	300
1300	305	358	78.6	300	1300	297	358	77.6	300
1500	292	392	75	300	1500	291	390	77.6	300
1500	378	403	95.6	400	1500	383	404	100	400
1700	325	425	74	300	1700	320	424	75	300
2000	167	413	60	200	2000	170	414	62	200

EME E-Motor Emulator

EME Series E-Motor Emulator

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