基于分数阶粒子群优化算法的水电机组一次调频参数辨识  

Parameters Identification of Primary Frequency Regulation for Hydropower Unit Based on Fractional-order Particle Swarm Optimization

作　　者：王炜[1] 朱蕾[1] 许存华 张建新 彭辉 黄自万 邓云辉 袁晓辉[3] WANG Wei;ZHU Lei;XU Cun-hua;ZHANG Jian-xin;PENG Hui;HUANG Zi-wan;DENG Yun-hui;YUAN Xiao-hui(Danjiangkou Hydropower Plant,Danjiangkou 442700,China;Hubei Energy Group Loushui Hydropower Co.,Ltd.,Hefeng 445000,China;School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]丹江口水力发电厂,湖北丹江口442700 [2]湖北能源集团溇水水电有限公司,湖北鹤峰445000 [3]华中科技大学土木与水利工程学院,湖北武汉430074

出　　处：《水电能源科学》2025年第3期186-190,共5页Water Resources and Power

基　　金：国家自然科学基金项目(U2340211);汉江水利水电(集团)有限责任公司科研项目(HJWT2022086)。

摘　　要：由于水电机组和调速器实际物理性质比较复杂,难以从理论上直接推导出其模型参数。为此,提出一种改进的分数阶粒子群优化算法,针对水轮机调速系统一次调频模式,首先根据实际设备的物理结构、运行机理分析建立了水电机组调速系统的调节器模型、随动装置模型及机组被控对象模型;然后应用小波阈值降噪法对水电机组一次调频试验数据进行预处理后,采用改进分数阶粒子群优化算法对各分块模型进行参数优化辨识;最后将各部分模型连成整体进行仿真校验。结果表明,改进分数阶粒子群优化算法在水电机组一次调频参数辨识中的精度提升效果明显。Due to the complex physical properties of hydroelectric units and governors,it is difficult to directly derive their model parameters in theoretically.Therefore,an improved fractional-order particle swarm optimization(FOPSO)algorithm is proposed.For the primary frequency regulation mode of hydraulic turbine control systems,the regulator model,servo system model,and unit controlled object model of the hydraulic turbine control systems are established based on the analysis of the physical structure and operating mechanism of the actual equipment.Then,the primary frequency regulation test data of the hydroelectric unit are preprocessed using wavelet threshold denoising,and the improved FOPSO algorithm is used to identify the parameters of each sub-model.Finally,the individual models are integrated into a whole for simulation verification.The results show that the improved FOPSO algorithm significantly improves the precision of parameter identification in the primary frequency regulation of hydroelectric units.

关 键 词：参数辨识 分数阶粒子群优化 一次调频 水轮机调节系统 仿真 

分 类 号：TV734.21[水利工程—水利水电工程] TK730.1[交通运输工程—轮机工程]