Setting up and managing a remote maintenance operation for fusion

Trying to set up and manage a remote maintenance operation for a thermonuclear fusion reactor is a complex undertaking.There are many problems and challenges which need addressing. This paper tries to guide the reader through this process by composing a list of generic problems and by analysing possible solutions.The first challenge before setting up a remote maintenance operation for a fusion reactor is the systematic analysis of all the remote handling requirements. Based upon this the remote handling concept, including facility layout and equipment, can be defined.The following aspects have to be considered and incorporated into the remote handling concept:
• Remote handling task development.
• Remote handling task logistics and resource management.
• Command, control and human–machine interface system.
• Viewing and camera systems.
• Virtual reality and Augmented Reality software.
• Automatic path planning and collision avoidance.
• Remote transfer of heavy loads.
• Maintainability of RH equipment.
• Reliability, redundant systems and safety.
• Rationalisation and modularity in both hardware and software.
• Recovery from failure modes.
• Condition monitoring and fault detection/prediction.
• Ability to deal with unforeseen problems.Oxford Technologies Ltd. has a proven track record in setting up and running the Remote Handling group at the JET Joint Undertaking in Culham, UK.Based on the unique experience gained at JET, Oxford Technologies Ltd. also developed the current design and remote handling concept of the ITER Hot Cell during a study in 2004.Examples of both the JET remote handling experience and the ITER Hot Cell design and layout are given throughout this paper.