ADVANCED NEURAL & FUZZY TEMPERATURE AND FLOW CONTROL SYSTEMS FOR IN-SODIUM TEST FACILITY

摘要

In-sodium testing facility (INSOT) for evaluating of creep and fatigue behaviour of fast breeder reactor structural materials under flowing sodium at elevated temperature is developed. Existing architecture for instrumentation and control of creep and fatigue loops of INSOT facility contains programmable logic controllers (PLCs), Field access units (FAUs) and personal computers based software of INSOT facility. Temperature controlling various methods are studied and improved. This paper examines the advancement features of the system architecture. The advancement covers the replacement of microcontroller (8749) chip, which resulted in an increase in speed and reduction in the programming time. The new microcontroller (89C51) architecture enable us electrically erase several times thus reducing the cost. The assembler and disassembler software are easily available. The internal memory 4K flash PRAM. The number of ports are more, so interrupts can be externally added. Upgrade possibility of neutral networks and fuzzy control in the insot was analysed, results obtained.