基于参数平面法孤网运行水电机组微分增益稳定性分析  

Stability analysis of derivative gain in hydraulic turbine based on parametric plane method

作　　者：沈春和 唐戢群 刘昌玉[2] 高晓光 

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵州贵阳550000 [2]华中科技大学水电与数字化工程学院,湖北武汉430074

出　　处：《贵州电力技术》2015年第12期22-24,27,共4页Guizhou Electric Power Technology

摘　　要：在孤网运行模式下,水轮机调速器需要提供有效的控制行为,来保证系统频率在不可预测的负荷扰动下维持稳定,稳定性是首要满足的要求。本文利用参数平面法对水轮机微机调速器微分增益的稳定域进行了分析,在调速器控制参数决定的立体空间中观察系统稳定区域的变化趋势,获得了微分增益的稳定域。In the operation mode of the isolated network, the governor of the turbine need to provide an effective control action to ensure the system frequency＇s stability under the unpredictable load disturbance, because stability was the primary requirement meet. In this paper, the stability region of the derivative gain of the hydraulic turbine governor was analyzed by using the method of parameter plane method. The stability region of the system was observed in the three-dimensional space, and gained the stability region of derivative gain.

关 键 词：孤网运行 参数平面法 微分增益 稳定性 

分 类 号：TM312[电气工程—电机]