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Title: MULTIPLE ECH LAUNCHER CONTROL SYSTEM

Abstract

OAK-B135 The addition of new, high power gyrotrons to the heating and current drive arsenal at DIII-D, required a system upgrade for control of fully steerable ECH Launchers. Each launcher contains two pointing mirrors with two degrees of mechanical freedom. The two flavors of motion are called facet and tilt. Therefore up to four channels of motion per launcher need to be controlled. The system utilizes absolute encoders to indicate mirror position and therefore direction of the microwave beam. The launcher movement is primarily controlled by PLC, but future iterations of design, may require this control to be accomplished by a CPU on fast bus such as Compact PCI. This will be necessary to accomplish real time position control. Safety of equipment and personnel is of primary importance when controlling a system of moving parts. Therefore multiple interlocks and fault status enunciators have been implemented. This paper addresses the design of a Multiple ECH Launcher Control System, and characterizes the flexibility needed to upgrade to a real time position control system in the future.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
GENERAL ATOMICS (US)
Sponsoring Org.:
(US)
OSTI Identifier:
823617
Report Number(s):
GA-A24467
TRN: US0401776
DOE Contract Number:  
AC03-99ER54463
Resource Type:
Conference
Resource Relation:
Conference: 20th IEEE/NPSS SYMPOSIUM ON FUSION ENGINEERING, SAN DIEGO, CA (US), 10/14/2003--10/17/2003; Other Information: TO BE PUBLISHED IN FUSION SCIENCE AND TECHNOLOGY; PBD: 1 Oct 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED CONTROL SYSTEMS; DESIGN; INTERLOCKS; MICROWAVE AMPLIFIERS; MIRRORS; DOUBLET-3 DEVICE

Citation Formats

GREEN,M.T, PONCE,D, GRUNLOH,H.J, ELLIS,R.A, GROSNICKLE,W.H, and HUMPHREY,R.L. MULTIPLE ECH LAUNCHER CONTROL SYSTEM. United States: N. p., 2003. Web.
GREEN,M.T, PONCE,D, GRUNLOH,H.J, ELLIS,R.A, GROSNICKLE,W.H, & HUMPHREY,R.L. MULTIPLE ECH LAUNCHER CONTROL SYSTEM. United States.
GREEN,M.T, PONCE,D, GRUNLOH,H.J, ELLIS,R.A, GROSNICKLE,W.H, and HUMPHREY,R.L. Wed . "MULTIPLE ECH LAUNCHER CONTROL SYSTEM". United States. https://www.osti.gov/servlets/purl/823617.
@article{osti_823617,
title = {MULTIPLE ECH LAUNCHER CONTROL SYSTEM},
author = {GREEN,M.T and PONCE,D and GRUNLOH,H.J and ELLIS,R.A and GROSNICKLE,W.H and HUMPHREY,R.L},
abstractNote = {OAK-B135 The addition of new, high power gyrotrons to the heating and current drive arsenal at DIII-D, required a system upgrade for control of fully steerable ECH Launchers. Each launcher contains two pointing mirrors with two degrees of mechanical freedom. The two flavors of motion are called facet and tilt. Therefore up to four channels of motion per launcher need to be controlled. The system utilizes absolute encoders to indicate mirror position and therefore direction of the microwave beam. The launcher movement is primarily controlled by PLC, but future iterations of design, may require this control to be accomplished by a CPU on fast bus such as Compact PCI. This will be necessary to accomplish real time position control. Safety of equipment and personnel is of primary importance when controlling a system of moving parts. Therefore multiple interlocks and fault status enunciators have been implemented. This paper addresses the design of a Multiple ECH Launcher Control System, and characterizes the flexibility needed to upgrade to a real time position control system in the future.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 2003},
month = {Wed Oct 01 00:00:00 EDT 2003}
}

Conference:
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