摘要
针对动态等值中发电机及其励磁系统的聚合问题,提出一种解析聚合方法。该方法精确考虑了母线化简时将等值机移至公共母线时电压角度的变化。发电机及其励磁系统的等值参数通过非迭代的解析推导能够直接求取。基于发电机励磁系统模型状态空间系数矩阵的结构约束特性,本文实现了模型不同的励磁系统的动态聚合。与传统基于传递函数拟合和时域仿真的聚合方法相比较,本文方法对含不同发电机及其励磁系统模型复杂大电网的动态聚合问题有更强的适应性。
This paper presents an analytical aggregation method for generator and its excitation system using structure preserving technique. It exactly considers the voltage deviations resulted from aggregating generators moved to the common bus. The parameters of the equivalent generator and its excitation systems are calculated directly in a non-iterative way. And in this paper, excitation systems of different type can be aggregate to an equivalent one based on the structure preserving technique. Compared with traditional methods such as transfer function fittings in frequency domain and time domain simulation, the new method is more adaptive to different structures, complexities of generator and its control system. Various simulation results have demonstrated the correctness and effectiveness of this method.
作者
李莎
张子泳
LI Sha ZHANG Ziyong(Guangdong Power Science Academy, Guangzhou 510000, China Guangdong Power Dispatch and Control Center, Guangzhou 510000, China)
出处
《云南电力技术》
2017年第1期28-33,共6页
Yunnan Electric Power
