Upload
opal-rt-technologies
View
68
Download
4
Embed Size (px)
Citation preview
Page 1
WORLDWIDE
AUSTRIAN
POWER
HIL &
Power AmplifierRequirements on Power Amplifiers and HIL
Real-Time Processors to successfully
implement P-HIL Test Benches
Page 2
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
P-HIL Simplified Model
Analogue
Output
Signal
Input
Signal
Page 4
Orion Link / RT – Link
• tTR = 4µs
• Including:
• HIL Coding
• Transport
• Power Amplifier decoding
Transport
Delay
tTR
Or ionLink
4µs
Page 5
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
+
-
S igna l
S ou r ce
OP4510
• Processing Model CPU
• 20µs Processing Cycle Time
• Processing Model FPGA
• 4µs Processing Cycle Time
• COMPISO Digital Amplifier has 250.000kHz sampling frequency
• 250.000kHz 4µs cycle time
2µs
4µs FPGA
20µs CPU
Page 8
HIL
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Sampling: Signal Source vs Amplifier
Analogue
Output
Signal
Sampling: 4µs .. 250kHz
Sampling: 4µs .. 250kHz FGPA
20µs .. 50kHz CPU
40µs .. 25kHz
80µs .. 12,5 kHz
Input
Signal
Sine Wave
50 Hz
1 kHz
2 kHz
Page 19
Summary: Sampling: Signal Source vs Amplifier
• 50 Hz Signals
• Slow CPU Models (>80µs / 12,5 kHz)
• 1 kHz Signal (20th Harmonic)
• Slow CPU Models (>40 µs / 25kHz)
• CPU Model (20 µs / 50 kHz)
• FPGA Model (4 µs / 250 kHz)
• 2 kHz Signal and higher frequencies
• Slow CPU Models (>40 µs / 25 kHz)
• CPU Model (20 µs / 50 kHz)
• FPGA Model (4 µs / 250 kHz)
Page 21
HIL
Delays
tDEAD
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Delay vs phase shift
Analogue
Output
Signal
Sampling: 4µs .. 250kHz
Input
Signal
5µs .. 80µs
Page 24
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Open Loop
Loop Feedback
Sampling: 4µs .. 250kHz
Input
Signal
1µs .. 74µs 4µs
2µs
Page 27
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Closed Loop P-HIL
Sampling: 4µs .. 250kHz
Input
Signal
1µs .. 74µs 4µs
2µs
Page 30
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Sampling: Signal Source vs Amplifier
Analogue
Output
Signal
Sampling: 4µs .. 250kHz
Sampling: 4µs .. 250kHz FGPA
20µs .. 50kHz CPU
40µs .. 25kHz
80µs .. 12,5 kHz
Input
Signal
Sine Wave
50 Hz
1 kHz
2 kHz
4µs
2µs
4µs FPGA
20µs CPU
Page 31
PI
HIL
Processing
Delay
tPR
ADC
Delay
tPR
Transport
Delay
tTR
Or ionLink
+
-
S igna l
S ou r ce
Pow er
A m p lif ie r
Sampling: Signal Source vs Amplifier
Analogue
Output
Signal
Sampling: 4µs .. 250kHz
Sampling: 4µs .. 250kHz FGPA
20µs .. 50kHz CPU
40µs .. 25kHz
80µs .. 12,5 kHz
Input
Signal
Sine Wave
50 Hz
1 kHz
2 kHz
4µs
2µs
4µs FPGA
20µs CPU