Application Notes
MicroHarmony Cell Sizes 40 - 260A Manual
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9.5 Cell Loss Calculations
The most accurate and quickest way to calculate cell losses is to use Drive Calc Express. However, losses can be
estimated using the tables, equations, and plots below. Cell losses consist of the following: rectifier, capacitor,
bleeder resistor, IGBT, FWD, control, bus work, and power plugs.
9.5.1
Rectifier Losses vs Output Current
The table and charts below can be used for estimating individual input rectifier losses as a function of cell output
current. All 40-140A cells use the same DD106N1800 rectifier modules. All 200-260A cells use the same
DD171N1800 rectifier modules. For total rectifier losses per cell, multiply the numbers below by 6.
Alternatively, individual rectifier losses can be estimated as follows:
40-140A cells: Prect = 0.000439 x Iout ^2 + 0.1823 x Iout - 0.00244
200-260A cells: Prect = 0.000286 x Iout ^2 + 0.1958 x Iout + 0.03017
0.85 motor power factor, 0.95 motor efficiency, 105% modulation, Iin=0.7 x Iout, and DD106N1800 or
DD171N1800 dual rectifier modules are assumed.
Losses vs Output Current
0
25
50
75
100
125
150
175
200
225
0
50
100
150
200
250
300
350
400
450
500
Output Current, Arms
Lo
sse
s,
W
at
ts
40-140A
200-260A
Iout
40-140A
200-260A
25
4.83
5.10
50
10.21
10.54
75
16.14
16.32
100
22.62
22.47
125
29.64
28.97
150
37.22
35.83
175
45.34
43.05
200
54.02
50.62
225
63.24
58.55
250
73.01
66.84
275
83.33
75.48
300
94.20
84.48
325
105.61
93.84
350
117.58
103.55
375
130.09
113.63
400
143.16
124.05
425
156.77
134.84
450
170.93
145.98
475
185.64
157.48
500
200.90
169.34
Содержание Eupec
Страница 10: ...Safety Precautions and Warnings MicroHarmony Cell Sizes 40 260A Manual viii 19001467 Version 1 0 s ...
Страница 16: ...Cell Overview MicroHarmony Cell Sizes 40 260A Manual 1 6 19001467 Version 1 0 s 1 ...
Страница 36: ...Installation MicroHarmony Cell Sizes 40 260A Manual 3 4 19001467 Version 1 0 s 3 ...
Страница 42: ...Electrical Description MicroHarmony Cell Sizes 40 260A Manual 4 6 19001467 Version 1 0 s 4 ...
Страница 56: ...Repair Hints MicroHarmony Cell Sizes 40 260A Manual 8 4 19001467 Version 1 0 s 8 ...
Страница 76: ...Drive Calc Express MicroHarmony Cell Sizes 40 260A Manual 10 2 19001467 Version 1 0 s 10 ...
Страница 86: ...Communication Protocol MicroHarmony Cell Sizes 40 260A Manual 11 10 19001467 Version 1 0 s 11 ...
Страница 87: ...MicroHarmony Cell Sizes 40 260A Manual NOTES 19001467 Version 1 0 N 1 s NOTES ...
Страница 88: ...NOTES MicroHarmony Cell Sizes 40 260A Manual N 2 19001467 Version 1 0 s ...
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