| 基于直接积分最小二乘法的同步发电机的参数辨识 |
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| 引用本文： | 杨浩,项丹,冯树辉,刘行谋.基于直接积分最小二乘法的同步发电机的参数辨识[J].湖南农业大学学报(自然科学版),2013,40(7):69-73. |
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| 作者姓名： | 杨浩 项丹 冯树辉 刘行谋 |
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| 作者单位： | （1.重庆大学 输配电装备及系统安全与新技术国家重点实验室，重庆400044. 2. 潍坊供电公司，山东 潍坊261021） |
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| 摘 要： | 针对同步发电机模型参数中多个不可观测量的存在使得需要求解复杂的微分方程组对电机参数进行辨识，进而导致了辨识困难，提出了一种完全由可观测量表示的同步发电机辨识模型，即状态量均为由发电机出口电流、励磁电压、励磁电流以及功角，转速变量增量表示的可量测量，并基于该模型提出用直接积分最小二乘原理（DILS）来辨识发电机参数.这样既避免了复杂微分方程的求解过程，简化了参数辨识方法，又提高了辨识效率.辨识后，利用MATLAB进行算例仿真，通过实测曲线和辨识曲线的拟合表明了所采用的辨识模型与算法是正确、有效的.
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| 关 键 词： | 同步发电机 参数辨识 可观测量模型 时域辨识 直接积分最小二乘法 |
Parameter Identification of Synchronous Generator Based on Direct Integration Least Square Algorithm |
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| YANG Hao,XIANG Dan,FENG Shu-hui,LIU Xing-mou.Parameter Identification of Synchronous Generator Based on Direct Integration Least Square Algorithm[J].Journal of Hunan Agricultural University,2013,40(7):69-73. |
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| Authors: | YANG Hao XIANG Dan FENG Shu-hui LIU Xing-mou |
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| Abstract: | Complicated simultaneous differential equations need to be solved as the result of non-observable quantities in the model of synchronious generator, which leads to difficulty of identification. Firstly, an identification model was derived for synchronious generator completely presented by the observable quantities, in which the quantities of state in the equation of state were represented with measurable quantity, including the outlet current of generator, exciting voltage, exciting current, power angle and increment of rotate speed. Then, the principle of direct integration least square (DILS) was utilized to identify the parameters of generator based on this model, which avoided the solution of complicated differential equation and simplified the method for parameter identification. Finally, a simulation sample was calculated in the MATLAB and the results showed that the identification model and algorithm were correct, feasible and effective. |
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| Keywords: | synchronous generator parameter identification considerable measurement model time-domain identification direct integration least square algorithm |
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