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基于Walsh变换的水轮机调节系统参数辨识
引用本文:李超顺,江〓均,樊晓东. 基于Walsh变换的水轮机调节系统参数辨识[J]. 水电能源科学, 2012, 30(4): 116-118
作者姓名:李超顺  江〓均  樊晓东
作者单位:1. 华中科技大学水电与数字化工程学院,湖北武汉,430074
2. 四川省电力公司泸州电业局,四川泸州,646000
3. 河南四建股份有限公司,河南南阳,473000
基金项目:国家自然科学基金资助项目(51109088);教育部博士点基金新教师基金资助项目(20110142120020);中央高校基本科研业务费专项基金资助项目(2011QN066);“水力机械过渡过程”教育部重点实验室开放基金资助项目(SLJX2011006)
摘    要:
连续系统辨识方法在电力系统辨识理论研究与工程应用中具有重要意义,针对连续系统辨识的难点,通过积分变换将信号微分项进行积分运算消除误差,考虑Walsh变换的快速特性和积分变换特性,提出基于Walsh变换的电力系统参数辨识方法,并进行了水轮机调节系统参数辨识试验。结果表明,该方法有效,参数辨识精度高,抗干扰能力强。

关 键 词:Walsh变换  参数辨识  调节系统  水轮机

Parameter Identification of Hydraulic Turbine Governing System Based on Walsh Transform
LI Chaoshun,JIANG Jun and FAN Xiaodong. Parameter Identification of Hydraulic Turbine Governing System Based on Walsh Transform[J]. International Journal Hydroelectric Energy, 2012, 30(4): 116-118
Authors:LI Chaoshun  JIANG Jun  FAN Xiaodong
Affiliation:School of Hydropower and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Luzhou Electric Power Company, Luzhou 646000, China;Fourth Construction Engineer Stock Limited Company of Henan Province, Nanyang 473000, China
Abstract:
Continuous system identification method is important in theoretic study and engineering application of power system identification.Aiming at the difficulty of continuous system identification,integral transform is introduced and applied to avoid errors caused by differentiation of continuous signal.Considering the rapidity and integral characteristics of Walsh transform,an identification method of power system based on Walsh transform is proposed,and identification experiments of hydraulic turbine governing system have been carried out.The results show that the proposed method is effective with high accuracy and anti-noise performance.
Keywords:Walsh transform  parameter identification  governing system  hydraulic turbine
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