Slow Beam Interlock System Manuel ZaeraSanz ICSMachine Protection
Slow Beam Interlock System Manuel Zaera-Sanz ICS/Machine Protection Systems – Slow Interlocks www. europeanspallationsource. se
Table of contents 1. 2. 3. 4. 5. Introduction Slow Beam Interlock System: Mission statement Architecture of the Slow Beam Interlock system Networking and Supervision Conclusions & Further work 2
1. Introduction • Machine Protection shall provide global protection of the ESS machine • Base document “MP Systems Requirements and Functional Architectural Framework” + “Beam Interlock System – Systems Requirements Specifications”: – Beam power of ESS is unprecedented (5 MW) and its uncontrolled release could lead to serious damage and long repair times (complex equipment) – Sophisticated protection systems are mandatory to minimize the risk => Beam Interlock System (BIS) – Categorization of signals into slow (ms range) and fast (µs range) shows that half of all signals can be considered to be in the slow range (BIS-Systems Architecture Specification document) – A proposal architecture for the slow part of the BIS is presented here 3
2. Slow Beam Interlock System: Mission statement “ Protect equipment (investment) in case of a failure detected by any of the slow local protection systems, stopping beam with realtime constraints (within 15 ms)” • How? Using PLC technology (response time from 100µs to 100 ms) 4
3. Slow Beam Interlock system architecture Overall architecture 5
Slow Beam Interlock system architecture Current Loops principle 6
Slow Beam Interlock system architecture 7
Slow Beam Interlock system architecture Highly Dependable Architecture: Current loops principle 8
Slow Beam Interlock system architecture Highly Dependable Architecture: Distributed Logic 9
Slow Beam Interlock system architecture Highly Dependable Architecture with Fast Response Times: Current Loops principle 10
Slow Beam Interlock system architecture Highly Dependable Architecture with Fast Response Times: Distributed Logic 11
4. Networking and Supervision 12
Networking and Supervision 13
5. Conclusions & Further work • High Flexibility: Different solutions for different requirements from high dependability to additional high speed (100µs) • High dependability achievable through redundancy in processing units, sensors and actuators • Basic principles already tested at CERN (warm magnets interlocks) and in ITER prototypes (superconducting magnets interlocks), but new in terms of distributed architecture for a Slow Beam Interlock system • May imply introduction of additional hardware and cabling in local protection systems • Installation under study. May be needed additional layers or concentrators and switches (something to avoid if possible) 14
Conclusions & Further work • Lots of work still to do beginning with prototyping in the lab several versions of the Slow Beam Interlock System evaluating response times: – Basic architecture – Highly dependable and high speed architecture • Discussions with Siemens about the FPGA module for its new version in S 71500 format (not yet decided). If not, the current solution is available for decades 15
THANK YOU !!! 16
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