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  Commissioning and Initial Operation Experience with ASDEX Upgrade's new Control and Data Acquisition

Raupp, G., Behler, K., Cole, R., Engelhardt, K., Lohs, A., Lüddecke, K., et al. (2005). Commissioning and Initial Operation Experience with ASDEX Upgrade's new Control and Data Acquisition. Poster presented at 5th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research, Budapest.

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 Creators:
Raupp, G.1, Author              
Behler, K.1, Author              
Cole, R.2, Author
Engelhardt, K.1, Author              
Lohs, A.3, Author              
Lüddecke, K.2, Author
Neu, G.1, Author              
Treutterer, W.3, Author              
Zasche, D.3, Author              
Zehetbauer, T.1, Author              
ASDEX Upgrade Team, Author  
Affiliations:
1Experimental Plasma Physics 2 (E2), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856292              
2Unlimited Computer Systems, Seeshaupter Str. 15, D-82393 Iffeldorf, Germany, ou_persistent22              
3Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295              

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 Abstract: Throughout last year ASDEX Upgrade's new real-time control and data acquisition system has been finalised. At present, the system consists of 6 controller nodes with real-time communication and timing networks. Application processes for machine and plasma control were implemented. These include power supply control and monitoring, plasma quantity evaluation for position and shape, kinetics and instabilities, multivariable feedback/feedforward control for plasma position and shape and performance quantities, actuator control with priority and degradation handling, monitoring of the discharge's overall technical and plasma state, and state sensitive reference value computation. The control application processes were tested in-situ on the target system with advanced verification strategies using replay data from previous discharges and test case specific simulation data for specific scenarii not accessible under standard operation conditions. Based on these tests the system was released for experiment operation with cycle times dynamically variable between 1.85 and 500 milliseconds. In this status report we will summarize the state achieved and discuss experiences made during commissioning and initial operation. Focus will be on the system's real-time characteristics (network, cycle times and jitters, set-point sensitive discharge program tracking, ...), io (bandwidth, offset treatment), alarm handling (detection, propagation), interaction with protection systems (soft landing, pulse termination, emergency stop), and feedback control performance.

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Language(s): eng - English
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 Publication Status: Not specified
 Pages: -
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 Rev. Type: -
 Identifiers: eDoc: 236929
 Degree: -

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Title: 5th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research
Place of Event: Budapest
Start-/End Date: 2005-07-12 - 2005-07-15

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