Feedforward-feedback composite control method and system for pressure and liquid level of nuclear power station voltage stabilizer

Abstract

The invention discloses a feedforward-feedback composite control method and a control system for the pressure and the liquid level of a nuclear power station voltage stabilizer. A voltage stabilizer liquid level set value is recalculated; a new voltage stabilizer liquid level set value is only relevant to the average temperature set value of a loop cooling agent at current power and zero power; mismatched signals of primary loop reactor power and a secondary loop stream turbine power are taken as feedforward signals, and are introduced into a pressure and liquid level control system of the voltage stabilizer, thereby forming a feedforward-feedback consistency control scheme; the liquid level and the pressure of the voltage stabilizer can be subjected to corresponding compensation control in advance, so that the control effect of the voltage stabilizer is enhanced, the voltage stabilizer can reach a stable state more rapidly, and the stability of a pressurized water reactor nuclear power unit during frequency and peak load modulation is further enhanced.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for accurate adjustment of the amount of water added by an electrolysis process (PE) boiler or other device used on Nuclear Power Plants (NPPs). By calculating the desired water levels based upon these values, this technique helps maintain stable operation even when there are sudden changes such as load fluctuations or rapid variations in output caused by factors like thermal shock or equipment failure. Additionally, this approach simplifies the designing phase needed before installation, allowing for more flexibility in controller settings without compromising its overall performance. Overall, this technology enhances the safety and reliability of fuel cell units while ensuring their proper function over time under varying conditions.

Problems solved by technology

This technical problem addressed in this patented text relates to improving the accuracy and efficiency of controlling an electricity supply facility's pressure during normal operation when there are sudden variations or interruptions affecting the overall performance of the facility due to factors like pump speed variation caused by environmental conditions such as humidity.

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