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Posts Tagged ‘PID controller’

Solving Boiler Drum Level Swings

Posted in Energy, Process Optimization, Variability Management on Tuesday, September 9th, 2014. 2 comments so far
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Effectively controlling the drum level in an industrial boiler helps to maximize overall energy efficiency. When the drum level varies it can not only impact boiler efficiency, but overall reliability due to unplanned shutdowns. Emerson’s Mark Coughran shared a story with me about a major North American university that was having difficulty with one of […]

Applying Lambda Tuning to Six Common Control Challenges

Posted in Process Optimization, Variability Management on Monday, November 4th, 2013. 2 comments so far
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Last year, some controversy broke out in the process automation and control community about the use of Lambda tuning for proportional-integral-derivative (PID)-based control. In a post, Lambda Tuning-Yeah or Neah?, we offered a differing view to a Control magazine article, The Case Against Lambda Tuning. Emerson’s Mark Coughran has written an excellent whitepaper that is […]

Giving PID Feedback Control a Whirl

Posted in Control Strategies, Education on Monday, January 10th, 2011. No comments yet
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Today’s Modeling and Control blog post, PID Feedback Control, by Emerson’s Terry Blevins, describes the impact unmeasured disturbances can have on a process. Trying to manually control these disturbances is difficult, given the increasing complexity of process manufacturing facilities. Proportional-Integral-Derivative (PID) control has been the principal means to automatically control these disturbances. Terry writes: Even […]