Generic gains for multiple machine types – Basler Electric DGC-2020HD User Manual

Page 376

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9469300990 Rev B

Generic Gains for Multiple Machine Types

The following method is suggested for determining generic gains for multiple machine types.

1.

Decide what levels of reverse power and reverse var (loss of excitation) protection you need to use.

2.

Once the criteria of step 1 have been established, tune a unit so that you can parallel to another unit
at no load and not cause any trips.

3.

Parallel two machines onto a load, and verify that acceptable load sharing occurs.

4.

Add and drop loads with machines paralleled to verify acceptable load sharing occurs, and no trips
occur.

5.

Once the settings are deemed “good”, save them as initial settings for a given machine configuration
for all future jobs. You shouldn’t need to change them unless you get trips or need to change load
sharing characteristics.

6.

Test the units paralleled under no load and verify that no trips occur.

7.

Parallel two machines onto a load, and verify that acceptable load sharing occurs.

8.

Add and drop loads with machines paralleled to verify acceptable load sharing occurs and no trips
occur.

9.

If you need to modify settings for a particular machine type, keep those settings to be used as initial
settings for all future machines of that type.

10.

Test every machine with steps 6, 7, and 8.

It is not expected that you will ever get one set of numbers that will work for all machines, but it is
probable that you may end up with 6 to 12 sets of settings that cover a wide range of machine sizes and
engine manufacturers. However, once a set of gains has been determined for a particular machine type,
the same gains should work in all identical machines.

Tuning PID Settings

DGC-2020HD

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