Abstract
There are disadvantages such as poor applicability, slow dynamic response of load output and poor anti-interference ability of the rod control power supply cabinet in operation. This paper redesigns a new type of power cabinet based on programmable logic controller (PLC) and digital signal processing (DSP) technology which adopts fast energy absorption loop and double closed-loop control method in the main circuit. Then the coordination test in the cold and hot states between the designed cabinet and ACP1000 control rod drive mechanism(CRDM) is carried out. The test result proves that the function of the cabinet satisfies the application requirements of generation-III nuclear plants and effectively solves the disadvantages of the existing cabinet.
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