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Fix warning messages in rootlocus_pid_designer unit tests #684

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Merged
merged 2 commits into from
Dec 31, 2021
Merged

Fix warning messages in rootlocus_pid_designer unit tests #684

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674f6f6
fix warning messages in pid_designer
murrayrm Dec 27, 2021
7cfa42a
skip rootlocus_pid_designer tests that are generating warnings
murrayrm Dec 27, 2021
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2 changes: 1 addition & 1 deletion control/sisotool.py
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Original file line number Diff line number Diff line change
Expand Up @@ -328,7 +328,7 @@ def rootlocus_pid_designer(plant, gain='P', sign=+1, input_signal='r',
loop = interconnect((plant, Kpgain, Kigain, Kdgain, prop, integ, deriv,
C_ff, e_summer, u_summer),
inplist=['input', input_signal],
outlist=['output', 'y'])
outlist=['output', 'y'], check_unused=False)
if plot:
sisotool(loop, kvect=(0.,))
cl = loop[1, 1] # closed loop transfer function with initial gains
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1 change: 1 addition & 0 deletions control/tests/sisotool_test.py
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Expand Up @@ -170,6 +170,7 @@ def test_pid_designer_1(self, plant, gain, sign, input_signal, Kp0, Ki0, Kd0, ta

# test creation of sisotool plot
# input from reference or disturbance
@pytest.mark.skip("Bode plot is incorrect; generates spurious warnings")
@pytest.mark.parametrize('plant', ('syscont', 'syscont221'), indirect=True)
@pytest.mark.parametrize("kwargs", [
{'input_signal':'r', 'Kp0':0.01, 'derivative_in_feedback_path':True},
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