Abstract
The Spallation Neutron Source (SNS) has developed a new control system for the High Voltage Converter Modulator (HVCM) at the SNS to replace the original control system which is approaching obsolescence. The original system was based on controllers for similar high voltage systems that were already in use [1]. The new controller, based on National Instruments' PXI/FlexRIO Field Programmable Gate Array (FPGA) platform, offers enhancements such as modular construction, flexibility and non-proprietary software. The new controller also provides new capabilities like various methods for modulator pulse flattening, waveform capture, and first fault detection. This paper will discuss the design of the system, including the human machine interface, based on lessons learned at the SNS and other projects. It will also discuss performance and other issues related to its operation in an accelerator facility which requires high availability. To date, 73% of the operational HVCMs have been upgraded with the new controller, and the remainder are scheduled for completion by mid-2017.
| Original language | English |
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| Title of host publication | IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference |
| Publisher | Joint Accelerator Conferences Website - JACoW |
| Pages | 3621-3623 |
| Number of pages | 3 |
| ISBN (Electronic) | 9783954501823 |
| State | Published - Jul 2017 |
| Event | 8th International Particle Accelerator Conference, IPAC 2017 - Bella Conference Center, Denmark Duration: May 14 2017 → May 19 2017 |
Publication series
| Name | IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference |
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Conference
| Conference | 8th International Particle Accelerator Conference, IPAC 2017 |
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| Country/Territory | Denmark |
| City | Bella Conference Center |
| Period | 05/14/17 → 05/19/17 |
Funding
This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under contract number DE-AC05-00OR22725. The authors would like to thank the many SNS staff members who participated in the support and testing of the HVCM controllers.