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Example of adaptive frequency tracking
IEC09000029_1_en.vsd
SMAI instance
3 phase group
SMAI_20_1:1
1
SMAI_20_2:1
2
SMAI_20_3:1
3
SMAI_20_4:1
4
SMAI_20_5:1
5
SMAI_20_6:1
6
SMAI_20_7:1
7
SMAI_20_8:1
8
SMAI_20_9:1
9
SMAI_20_10:1
10
SMAI_20_11:1
11
SMAI_20_12:1
12
Task time group 1
SMAI instance
3 phase group
SMAI_20_1:2
1
SMAI_20_2:2
2
SMAI_20_3:2
3
SMAI_20_4:2
4
SMAI_20_5:2
5
SMAI_20_6:2
6
SMAI_20_7:2
7
SMAI_20_8:2
8
SMAI_20_9:2
9
SMAI_20_10:2
10
SMAI_20_11:2
11
SMAI_20_12:2
12
Task time group 2
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IEC09000029 V1 EN
Figure 33:
SMAI instances as organized in different task time groups and the
corresponding parameter numbers
The example shows a situation with adaptive frequency tracking with one reference
selected for all instances. In practice each instance can be adapted to the needs of the
actual application.
Example 1
Section 3
1MRS757256 F
Basic functions
64
PML630/Compact Load-Shedding Solution
Technical Manual
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