基于Walsh变换的水轮机调节系统参数辨识  

Parameter Identification of Hydraulic Turbine Governing System Based on Walsh Transform

作　　者：李超顺[1] 江均[2] 樊晓东 

机构地区：[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

出　　处：《水电能源科学》2012年第4期116-118,共3页Water Resources and Power

基　　金：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。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.

关 键 词：WALSH变换 参数辨识 调节系统 水轮机 

分 类 号：TV734.4[水利工程—水利水电工程]