三门核电机组一次调频技术研究  

Research on Primary Frequency Regulation Technology of Sanmen Nuclear Power Unit

作　　者：马仕洪 沈艳强 王宇 居法立 MA Shihong;SHEN Yanqiang;WANG Yu;JU Fali(Equipment Management Department,Sanmen Nuclear Power Co.,Ltd.,Taizhou 317112,China)

机构地区：[1]三门核电有限公司设备管理处,浙江台州317112

出　　处：《自动化仪表》2022年第6期99-105,共7页Process Automation Instrumentation

摘　　要：基于三门核电机组汽轮机控制的现有控制逻辑,结合电网对一次调频的技术指标和考核要求,对三门核电机组一次调频改造进行了技术研究。提出了三门核电机组一次调频参数设置、函数设计和逻辑改造方案,并对汽机调阀特性曲线等相应功能进行了优化。对一次调频投用后的影响范围进行了分析,并在仿真平台上进行了汽机功率响应和对一回路主要参数影响的验证。验证结果表明,一次调频技术改造方案可达到预期效果,引起的瞬态对机组影响可控。该研究在一次调频逻辑叠加方案、优化阀门特性曲线以提升功率响应方面有一定创新性,对后续核电机组进行一次调频改造有一定借鉴意义。Based on the existing control logic of turbine control of Sanmen nuclear power unit,the technical study of primary frequency ragulation on Sanmen nuclear power unit is carried out by combining the technical indexes and assessment requirements of the grid for primary frequency modulation.The primary frequency regulation parameter setting,function design and logic modification plan of Sanmen nuclear power unit are proposed,and the corresponding functions such as steam engine valve characteristic curve are optimized.The impact range of the primary frequency regulation after commissioning is analyzed,and the verification of the steam engine power response and the impact on the main parameters of the first circuit is carried out on the simulation platform.The validation results show that the primary frequency regulation can achieve the expected results and the transients caused can be controlled on the unit.The study is innovative in the primary frequency regulation logic superposition scheme and the optimization of valve characteristic curve to improve the power response,which has some significance for the primary frequency regulation modification of subsequent nuclear power units.

关 键 词：一次调频 汽轮机控制 调速器 转速不等率 调频死区 调频幅值 特性曲线 逻辑改造 

分 类 号：TH-39[机械工程]