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Automating Manufacturing Systems - Process Control and ...

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plc fuzzy - 26.5<br />

1. If v error is LP <strong>and</strong> d / dt v error is any then V motor is LP.<br />

1<br />

1<br />

1<br />

0<br />

rps 0<br />

rps/s 0<br />

-100 -50 0 50 100<br />

-6 -3 0 3 6<br />

ANY VALUE<br />

30rps<br />

(so ignore)<br />

This has about 0.6 (out of 1) membership<br />

0 6 12 18 24<br />

V<br />

17V<br />

(could also<br />

have chosen<br />

some value<br />

above 17V)<br />

2. If v error is SP <strong>and</strong> d / dt v error is SP or ZE then V motor is SP.<br />

the OR means take the<br />

highest of the two<br />

memberships<br />

the AND means take the<br />

lowest of the two<br />

memberships<br />

1<br />

0<br />

rps<br />

-100-50 0 50 100<br />

30rps<br />

1<br />

0<br />

-6 -3 0 3 6<br />

1rps/s<br />

rps/s<br />

1<br />

0<br />

-6 -3 0 3 6<br />

1rps/s<br />

rps/s<br />

1<br />

0<br />

0 6 12 18 24<br />

14V<br />

V<br />

This has about 0.4 (out of 1) membership<br />

3. If v error is ZE <strong>and</strong> d / dt v error is SP then V motor is ZE.<br />

1<br />

0<br />

-100 -50 0 50 100<br />

1<br />

1<br />

rps<br />

0<br />

rps/s<br />

-6 -3 0 3 6<br />

0<br />

30rps<br />

1rps/s<br />

This has about 0.0 (out of 1) membership<br />

0 6 12 18 24<br />

the lowest results in 0 set<br />

membership<br />

V

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