电机实用参数描述的发电机哈密顿模型

Hamiltonian Model of Generator Described With Practical Parameters

为便于研究水轮发电机内部关联的动力学机理,通过定义一组广义速度,将电机基本参数描述的发电机哈密顿模型转化为电机实用参数描述的哈密顿模型。导出结构矩阵、阻尼矩阵、输入矩阵的具体表达式,并对模型的验证问题进行分析说明。对哈密顿标准形式中阻尼矩阵的限制进行推广,结合发电机哈密顿模型分析了这种推广的合理性。分析结果表明:所导出模型的能量流与实际系统是一致的,阻尼矩阵关联因子所反映的发电机阻尼特性与其它方法获得的研究结论是一致的。

For the convenience to study the dynamic mechanism of hydro-generator internal correlation, the Hamiltonian model of generator described with fundamental parameters was improved by the transition to that with practical parameters resulting from defining generalized velocities. Subsequently, explicit expressions of the structure matrix, damping matrix, and input matrix of the model were derived, and the verification method of the model was given. The limit of damping matrix was extended in Hamiltonian model standard form, and this extension was proved to be reasonable by using it to generator Hamiltonian model. The analysis results show that the energy flow of the model are consistent with practical system, and the generator damping characteristics reflected by correlation factors in damping matrix are consistent with previous studies.