Reactor Core Protection System Maintenance Simulator
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Solution Overview
Problem
Conventional reactor core protection system simulation apparatuses face delays in response time and require additional equipment to test response times across multiple channels, leading to inefficiencies and potential human errors due to complex wiring and limited signal simulation capabilities.
Innovation Solution
A simulation apparatus that generates simulation state signals, including various forms like ramp, step, impulse, and sinusoidal signals, and transmits them to all channels of the reactor core protection system, allowing for simultaneous testing without external equipment, and includes a response time test unit to measure and analyze delays, ensuring proper channel operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional simulation apparatus transmits simulation state signal to one channel at a time, then response time measurement is possible, but testing efficiency is reduced and additional equipment is required
Solution Approach 1:
The patent segments the simulation state signals into multiple independent signal lines, each corresponding to a different channel. The simulation apparatus can transmit different simulation state signals (normal or abnormal) to each channel simultaneously through separate communication paths, enabling parallel testing of multiple channels without interference.
Solution Approach 2:
The simulation apparatus is designed with multi-functional capability to generate and transmit various types of simulation state signals (normal state, abnormal state, different signal forms) to multiple channels simultaneously. This universal design eliminates the need for additional specialized testing equipment while improving testing efficiency.
2Measurement precision
If conventional apparatus uses additional external equipment for response time testing, then measurement capability is achieved, but device complexity increases
Solution Approach 1:
The patent merges the response time measurement function directly into the simulation apparatus by integrating a response time test unit. This unit is combined with the simulation signal generation and transmission components, allowing the apparatus to both simulate reactor states and measure channel response times without requiring separate external testing equipment.
Solution Approach 2:
The simulation apparatus performs self-testing by incorporating the response time test unit that can autonomously measure the response time of each channel. The apparatus generates test signals, transmits them to channels, receives result signals, and automatically calculates response times without external intervention or additional equipment.
3Measurement precision
If conventional apparatus tests channels sequentially, then response time can be measured, but testing duration increases
Solution Approach 1:
The patent segments the testing process into parallel independent operations where each channel receives and processes simulation state signals simultaneously through dedicated communication paths. This segmentation enables concurrent testing of multiple channels rather than sequential testing, significantly reducing total testing duration while maintaining measurement precision.
4Adaptability or versatility
If conventional apparatus limits signal simulation to single type, then simplicity is maintained, but simulation capability is reduced
Solution Approach 1:
The simulation signal generation unit is designed with universal capability to generate multiple types of simulation state signals including normal state signals, abnormal state signals, and various signal forms (ramp, step, impulse, sinusoidal). This multi-functional signal generation is achieved through integrated control logic that selects and generates appropriate signal types based on testing requirements, enhancing versatility without proportionally increasing complexity.
Data Source
AI summary
A system for simulating maintenance of a reactor core protection system that has at least two or more channels, includes: a simulation signal generation unit for generating a simulation state signal including a normal state or an abnormal state, a communication unit connected to each of the channels of the reactor core protection system to transmit the state signal to the channel, and a control unit for receiving a result signal output from the channel in response to the input simulation state signal and confirming whether the reactor core protection system normally determines a reactor core state by analyzing the result signal.