DTI HV-500 기술 설명 - 페이지 6
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HV-500 TECHNICAL DESCRIPTION
CURRENT LIMIT
REDUCTION
Maximum stepless AC current
limit depending on the IGBT
temperature in order to protect
them from damage.
POWER LOSS
The dissipated power depends on:
•
PWM switching frequency
•
AC frequency (motor rotation frequency)
•
AC current
•
AC voltage
•
DC voltage
With a calculated example we demonstrate the power loss of the inverter. Power loss can be seen
compared to AC current.
Power loss calculated with the following inputs:
DC voltage:
Motor KV:
PWM switching frequency:
AC electric frequency:
3000W
2500W
2000W
1500W
1000W
500W
0W
0A
100A
Revision 1.31
(BETA
VERSION)
370 V
13 [RPM/V]
10.000 Hz
20.000 Hz (2000 RPM with EMRAX)
Total power loss
200A
300A
6
400A
500A
600A