In the operation of a proportional-plus-reset...

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Question 1 of 205eccefa5bacbc34ba4d48808

In the operation of a proportional-plus-reset controller, the proportional action __________. and the reset action are completely independent of one another opposes reset action during decreasing error transients

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🔍 Key Concepts

• Proportional control vs reset (integral) action in a P+I controller • How error transients (increasing vs decreasing error) affect each term • Whether proportional and reset actions are mathematically and dynamically independent or if one influences the other

💭 Think About

• Think about how the proportional term is calculated and how the reset (integral) term is calculated. Do they share the same error signal, and does a change in one affect the total output? • During a decreasing error transient, what is the sign and magnitude of the proportional term compared to what the reset term is trying to do? Do they tend to push the controller output in the same direction or opposite directions? • If proportional and reset actions were completely independent, what would that imply about their interaction in the total controller output?

✅ Before You Answer

• Check how a PI (proportional + integral/reset) controller output is expressed mathematically in your notes or text. • Verify whether both proportional and reset terms depend on the same error signal and how changes in error affect each term over time. • Confirm during a decreasing error transient whether the proportional term tends to reduce or enhance the effect of the accumulated reset action.

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