进相试验中水轮发电机进相安全域的计算  

Calculation of Leading Phase Safety Region for Hydro-generators in Leading Phase Operation Test

作　　者：闫迎 晏桂林 郝剑波 任章鳌 

机构地区：[1]国网湖南省电力公司电力科学研究院,湖南长沙410007

出　　处：《湖南电力》2017年第6期41-46,共6页Hunan Electric Power

摘　　要：为指导水轮发电机进相试验,介绍了一种对其进相安全域进行计算的方法。基于单机无穷大系统的静态稳定条件,建立了不同工况下的水轮发电机组进相稳定边界方程,分析了方程中系统电抗、系统电压、同步电抗等重要参数对进相稳定的影响,指出对进相边界进行校核的必要性,同时给出多种约束条件下的校核方案。以某300 MW机组为例,分别计算和实测了不同工况下的机组进相运行数据,数据对比表明该计算方法在指导进相试验中具有很好的应用性。To guide the leading phase test of the hydro一generators, a calculation method is presented to get the leading phase safety region. Based on the static stability theory of the single一machine infinite bus system, the boundary equations of the generator are established, and the influences for the stability caused by the parameters in the equations such as power system reactance and voltage, synchronous reactance, are analyzed to reveal the necessity of the boundary verification. The method to modify the boundary under different limited conditions is also given. Taking one 300 MW hydro一generator for example, its running parameters in the leading phase operation are abtained by calculation and test, and the comparison proves that the method is useful for the leading phase operation test.

关 键 词：进相运行 水轮发电机 静态稳定 极限功率 边界校核 

分 类 号：TK730.7[交通运输工程—轮机工程]