【摘要】 介绍了多机电力系统在4种参考坐标系:绝对功角同步旋转坐标系、相对功角同步旋转坐标系、某一机组参考系和惯性中心参考系下的线性空间数学模型的形成方法。阐述和推导了不同参考系下线性模型的特点和它们之间的变换关系。根据系统矩阵稳定性和状态向量的区别,详细讨论了4种不同参考系在小扰动稳定分析和励磁调节器设计方面的适用原则。特别指出了各种参考系下系统矩阵的镇定条件和基于各种参考系进行励磁调节设计时的分散性问题。更多还原

【Abstract】 Based on four different reference frames, namely absolute angle synchronized reference frame, relative angle synchronized reference frame, reference frame in which some machine is taken as reference machine, and inertia center reference frame, methods of forming linear space model of multi-machine systems are introduced. The characters of these linear models are described and relations of them are deduced. The applicable principle of these four different reference frames is discussed comprehensively in aspect of small signal analysis and excitation law designs. Especially, stabilized conditions of system matrixes based on these four reference frames are demonstrated and problems about decentralized control design of excitation laws are analyzed.更多还原