Latest threads in ⧑ Industrial Control Groupshow only best voted threads
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1st and 2nd derivative with H2 observer
Hi to all!! Guys i have a problem. I have estimated the first derivative(called x_hat_d ot) of position with a H infinity observer. Now i want obtain the second de rivative, always with H observer. If...
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9 years ago
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Industrial boiler air flow measurement
Spare the details, we're chasing a mysterious instability in control of a 7 MPa industrial boiler. Still to be confirmed, but there are reports that the air flow measurement is done by measuring the...
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9 years ago
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Bird Friendly Heliostat
Stopping a megawatt wind turbine on a dime to save a bird might introduce structural issues. That isn't the case with solar thermal. Radar or sonar can track each bird as it passes through the farm...
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10 years ago
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Drum Level Control in Power Stations
The idea is to find a calculated solution: I myself tuned drum level controllers and did not enjoy a trial and error method, neither did the people at the power stations. JCH
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10 years ago
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Control engineering in the real world
Just to keep this sadly degraded newsgroups head a bit above the murky waters of solution manuals and questionable conferences.... No response expected, just nice to tell my story to a few people, in...
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10 years ago
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Best book for Linear stability analysis
Hello, What is the best book for self-studying of Linear eigenvalue problem and Linear stability analysis of PDE ? Thank you in advance for your answers:) Andriej
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10 years ago
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bit OT: Multivariable nonlinear regression
I need to convert some compressor curves into a 3-d equation for modelling purposes, P = f(Q,V), where P is pressure, Q flow and V a vane position. For fixed V, the P-Q relationship is well behaved,...
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10 years ago
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Siemens SCL Pascal question
I'm working on a program using SCL, every time I add a variable I have to make sure to compile program of course, but I have to also make sure to update the data block, download the updated data...
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10 years ago
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Gearbox efficiency while back-driving
I suppose if there's a "" group I should post it there -- but r.c.m has some smart mechanical types, and s.e.c may still have some lurkers who might come out of the woodwork for this one. So here's a...
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10 years ago
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Why is an observer designed?
What do people design an observer? What purpose does it solve?
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10 years ago
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Public Policy On AGW Needs To Be Like A PID Controller, Not Just a P or an I or a D Controller.
Bret Cahill
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10 years ago
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Fun with Superconductors
Neat demo: Way cool demo. I want one, in fact. Video courtesy of the Association of Science-Technology Centers (ASTC), representing the science center and museum field worldwide. To learn more, visit...
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10 years ago
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Back-EMF speed detection in motors
I'm working on a project that involves replacing some existing electronics with some that I've designed. It's controlling the speed of DC brushed motors. Since the original equipment uses a knowledge...
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11 years ago
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Solving static flow networks in Simulink: Usual approach?
For anyone with experience with Simulink... Bit of preamble here, question is at the end. I'm assisting a colleague who is following the instructions in an old report he's unearthed, to model a...
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11 years ago
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PC Data Acquisition
This is slightly OT for all the groups I'm posting to, but something many of you should have done. I have a need to sample one channel of data at between 200 and 2000 samples per second, 12 bits or...
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11 years ago
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