SY-EPC-LPC R2E-EPC Strategy

Introduction

R2E/EPC Projects

R2E/EPC Planning

R2E/EPC Irrad. Units Management

R2E/EPC Project Management

Introduction

End of 2010, CERN launched a R2E program which includes the study of Radiation tolerant power converters design, called R2E Power Converters.

R2E/EPC Projects

A specific spare strategy covers a possible rotation of unit of complete areas in case some crash program is required.

Project	Total Project Qty
Project	Total	LHC Op.	LHC Spares	LHC R2E-Test
R2E-FGClite Budget Code: 99 690	1400	1090	218	30+20
R2E-Rad-DIM Budget Code: 99 691	3767	1528+1500	252+90	30
R2E-LHC120A-10V Budget Code: 99 692		102
R2E-LHC600A-10V Budget Code: 99 693	162	120	32	10
R2E-LHC4-6-8kA-08V Budget Code: 99 694	95	64	≈15	≈2
R2E-Study Budget Code: 99 695	NA

Project	Total Project Qty
Project	Total		Justification
R2E-FGClite Budget Code: 99 690	Oper.	1038	752+102+120+64
	Spares	142
	R2E Test	20	4x 5 units being tested (5 for statistical reasons), 3x in case of modification / upgrade.
R2E-Rad-DIM Budget Code: 99 691	Oper.	1800	Counting DIM installed in LHC Module Spares: (752x1+60A.spares)_LHC60A + (102x1+120.spares)_LHC120A + (360+96+30)_LHC600A + (314+87+24)_LHC4-8kA
	Spares	70	Spare qty for replacement only (not installed).
	R2E Test	30
R2E-LHC120A-10V Budget Code: 99 692	Oper.	102	UL14/16 (16x), RR13/17/53/57 (56x), RR73/77 (48x), from LS2 to LS3 (Cryo scenario > LS3).
	Spares	30	Spare qty to be able to upgrade entirely a whole RR or UL, in case of crash program (during Technical Stop).
	R2E Test	15	3x 5 units being tested (5 for statistical reasons), 3x in case of modification / upgrade.
R2E-LHC600A-10V Budget Code: 99 693	Oper.	120	UL14/16 (16x), RR13/17/53/57 (56x), RR73/77 (48x), from LS2 to LS3 (Cryo scenario > LS3). 120x Control & Prot. Modules, 240x Power Modules 360x DIM Cards
	Spares	32	Spare qty to be able to upgrade entirely a whole RR or UL, in case of crash program (during Technical Stop), and under normal operation. 32x Control & Prot. Modules, 64x Power Modules 96x DIM Cards
	R2E Test	10	10 units being tested 10x Control & Prot. Modules, 20x Power Modules 30x DIM Cards
R2E-LHC4-6-8kA-08V Budget Code: 99 694	Oper.	64	UL14/16 (4x), RR13/17/53/57 (60x), from LS2 to LS3 (Cryo scenario > LS3). 2x RPHF (5 sub) + 8x RPHH (3 sub) + 52x RPHG (4 sub) + 2x RPHGC (4 sub). 250x Sub, 500x Out. Mod., 250x Inp. Mod., 64x CCE, 64x FGC Controller, 314x DIM Cards
	Spares	≈15	Spare qty to be able to upgrade entirely a whole RR or UL, in case of crash program (during Technical Stop), and under normal operation. 132x Out. Mod., 66x Inp. Mod., 21x CCE, 87x DIM Cards
	R2E Test	≈2	3x 5 units being tested (5 for statistical reasons), 3x in case of modification / upgrade. 24x Out. Mod., 12x Inp. Mod., 12x CCE, 24x DIM Cards
R2E-Study Budget Code: 99 695	NA

Details of Quantities to be produced in the whole R2E process Figures Figures - Details Details

R2E/EPC Planning

Project	Planning
Project	2011	2012	2013	2014	2015	2016	2017	2018	2019
R2E-FGClite Budget Code: 99 690		Design	Design Type Test	Design Cpts Purchase Pre-Series Batch-Test	Unit Test Prod. Install.	Production Install.
R2E-Rad-DIM Budget Code: 99 691			Design Type Test	Design Cpts Purchase Pre-Series Batch-Test	Unit Test Prod. Install.	Production Install.
R2E-LHC120A-10V Budget Code: 99 692	Eval.
R2E-LHC600A-10V Budget Code: 99 693			Design Prototype	Pre-Series Rad-Test	Components Purchase & Rad-Qual.	Production	Production	Reception Install.
R2E-LHC4-6-8kA-08V Budget Code: 99 694		Design	Design Prototype	Pre-Series Rad-Test	Components Purchase & Rad-Qual.	Production	Production	Reception Install.
R2E-Study Budget Code: 99 695	Theoric Test	Theoric Test	Tester Design	Component Qualif.

Projective Planning of the full R2E-EPC Program (budget spending profile .xls)
Current Current - History History

R2E/EPC Irradiated Units Management

Irradiated units management strategy is organized and defined at the level of the group SY-EPC.

R2E/EPC Project Management

R2E projects have been organized for a maximum efficiency in dissociating the already hard power design phase from the rad-tolerant consideration. This allows people and teams working in parallel, limiting the impact of each team on each other. A fundamental principle highlighted in this organisation is the natural flexibility of a power converter designer regarding to the component choice, once all choice criteria have been identified in the considered design.
Of course some additional design rules are taken in account at the design level, but not changing drastically the original design methods however aiming for a simple design relying on robust components of few families and types.

R2E Strategy: EPC - Power Converter Team Organization .vsd

R2E Strategy: EPC - Power Converter Manpower Affectation .vsd