水电站机电技术2024，Vol.47Issue(1)：1-5,5.DOI:10.13599/j.cnki.11-5130.2024.01.001
水轮机调速器控制方法一次调频性能分析
Analysis of primary frequency modulation performance under various turbine governor control methods
程远楚 1普碧才 2蔡天富 1肖惠民1
作者信息
- 1. 武汉大学动力与机械学院,湖北 武汉 430072
- 2. 云南电网有限责任公司怒江供电局,云南 泸水 673100
- 折叠
摘要
Abstract
Control methods employed by turbine governors have a significant impact on the performance of primary frequency modulation.Power plants often experience substandard performance under slight frequency deviations.Based on an analysis of different modulation modes of turbine governors,this paper presents a dual PID control method that combines opening and power control.A simulation analysis platform,based on a nonlinear turbine model,was established to evaluate the primary frequency modulation performance under different turbine governor control methods,considering varying heads and frequency differences at hydropower plants.This analysis revealed that the primary frequency modulation performance indexes in the opening control mode exhibited considerable fluctuations under different operating conditions,and the power regulation mode resulted in either no response or insufficient modulating power for small frequency differences during primary frequency modulation.The variable feedforward plus feedback power control method and the dual-PID control method,integrating opening and power control,demonstrated consistent response power for primary frequency regulation and integral power contribution across various operating conditions.Furthermore,the power response ratio and integral power contribution ratio remained substantially consistent for different frequency differences.关键词
水轮机/调速器/运行工况/控制方法/一次调频Key words
turbine/governor/operating condition/control method/primary frequency modulation分类
水利科学引用本文复制引用
程远楚,普碧才,蔡天富,肖惠民..水轮机调速器控制方法一次调频性能分析[J].水电站机电技术,2024,47(1):1-5,5.
