天然气余压发电透平发电机组控制特性研究  

Control characteristics of a natural gas residual pressure power generation turbine generator set

作　　者：蒋鑫[1,2] 朱万炫 李和平 张雪辉[2] 许剑[3] 韩汶昕 徐江荣 JIANG Xin;ZHU Wanxuan;LI Heping;ZHANG Xuehui;XU Jian;HAN Wenxin;XU Jiangrong(Institute for Energy Studies,Hangzhou Dianzi University,Hangzhou 310018,Zhejiang,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;General Office,Chinese Academy of Sciences,Beijing 100864,China;School of Automotive Engineering,Zunyi Vocational and Technical College,Zunyi 563006,Guizhou,China)

机构地区：[1]杭州电子科技大学能源研究所,浙江杭州310018 [2]中国科学院工程热物理研究所,北京100190 [3]中国科学院办公厅,北京100864 [4]遵义职业技术学院汽车工程学院,贵州遵义563006

出　　处：《储能科学与技术》2024年第9期3287-3298,共12页Energy Storage Science and Technology

基　　金：国家重点研发计划(2023YFB2406505);国家自然科学基金(52306285),科学探索奖。

摘　　要：本文研究了透平发电机组的物理模型,重点详细介绍了透平膨胀机调速系统、同步发电机、励磁系统的工作原理。并据此利用MATLAB/Simulink建立起透平发电机组数学模型,主要包括透平膨胀机及其调速系统、同步发电机及励磁系统、电力负载模型等。然后根据建立的仿真模型对透平发电机组运行工况进行了常规PID仿真研究,在此基础上,对系统的控制方法进行优化,采用模糊PID控制进行了空载启动和投切负载的仿真研究,根据仿真结果对比了常规PID和模糊PID的控制性能,仿真结果显示模糊PID控制器比常规PID控制器的启动时间更短、超调量更小,使得发电机组的响应过程更加快速、稳定。This study examines the physical model of a turbine generator set,focusing on a detailed explanation of the working principles of the turbine expander speed control system,synchronous generator,and excitation system.A mathematical model of the turbine generator set was developed using MATLAB/Simulink.This model incorporates a turbine expander and its speed control system,a synchronous generator and excitation system,and a power-load model.Conventional PID simulations were performed under various operating conditions for turbine generator sets using the established model.Subsequently,the control approach of the system was optimized,and fuzzy PID control was used to simulate the no-load start and load switching.Based on the simulation results,the control performances of conventional and fuzzy PID were compared.The simulation results indicated that the fuzzy PID controller exhibited a shorter starting time and a smaller overshoot than the conventional PID controller,resulting in a faster and more stable response process for the generator set.

关 键 词：余压发电 透平发电机组 仿真模型 模糊PID 

分 类 号：TK14[动力工程及工程热物理—热能工程]