Fundamental Research on Intelligent Control of Fusion reactors

近年来，智能控制概念有了很大的发展，模糊逻辑、神经网络、混沌理论在原子反应堆控制和等离子体诊断/控制中的应用也有了许多尝试。此外，遗传算法也被应用到控制系统中。作者对环形等离子体的模糊逻辑控制进行了研究，提出了广义的“传感器融合”概念，以统一工程方案。本研究旨在综述智能控制方案，并验证其应用于聚变等离子体控制的可能性。澄清这些智能方法在聚变电站反应堆中的应用问题也是本研究的目的之一。1997年，对各种智能控制系统进行了概述，并尝试将其应用于等离子体控制和反应堆系统设计。为了扩大研究范围，作者参加了在北京举行的国际加速器和大型实验会议。1998年9月，作者在美国国际等离子体控制会议上进行了软件研究和反馈算法的验证。此外，作者还在筑波举行的PCaPAC‘99国际会议上介绍了他的研究活动。1999年是这项宏大研究的最后一年，作者在相关研讨会上介绍了与LHD有关的控制结果、MHD模式的主动控制和未来聚变反应堆的设计工作。

Recently, there is a great progress on intelligent control concepts, and there are many trials of application of Fuzzy logic, neural network, chaos theory to the atomic reactor control and plasma diagnostics/control. Moreover, GA (genetic algorithm) is also being applied to control systems. The authors have being making researches on fuzzy logic control of toroidal plasmas, and now are going to develop wide "sensor fusion" concept for unifying engineering schemes.This research aims at the survey on intelligent control schemes, and checks the possibility of applying them to fusion plasma control. To clarify the issues of application of these intelligent method to fusion power plant reactors is also one of purposes of this research.In JFY 1997, general survey on various intelligent control systems are carried out and are tried to be applied to plasma control and reactor system design. In order to make research wide, the author attended at the International Conference on Accelerators and Large Experimental held in Beijing.In JFY 1998, researches on the software are carried out and the feedback algorithm is checked related to the international conference on plasma control in USA.Moreover, the author presented his research activities in the International Conference PCaPAC' 99 held in Tsukuba.JFY 1999 is the final year of this grand-in-research, and the author presented the control results related to LHD, active control of MHD mode and design work on future fusion reactors in the relevant workshops.