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KMID : 0371819970290020167
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Nuclear Engineering and Technology
1997 Volume.29 No. 2 p.167 ~ p.174
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Closed-Loop Timing Controller Design for Control Rod Drive Mechanism(CRDM) Control System in Pressurized Water Reactor
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Kim Byeong-Moon
Lyou Joon
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Abstract
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The method that the operating condition of Control Rod Drive Mechanism (CRDM) can be monitored without mounting sensors within CRDM housing was developed, and by using this developed method the closed-loop controller for the CRDM was designed which can optimize the performance and maadmize the reliability of CRDM operation. Neural network is utilized as pattern recognition engine in detecting CRDM actuation. In this paper, most problems in previous open loop system are resolved. The control algorithms for closed-loop system were developed and implemented within the hardware of timing controller based on microprocessor. All functions in the timing controller were verified by means of real time CRDM simulator. The results show that the timing controller performs its intended functions properly.
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