摘要
同步发电机进相运行已成为广泛应用的电网电压调节手段。动模试验是电力系统学科一种重要的研究方法。由于电网安全运行的重要性,现场不可能开展发电机深度进相运行试验。文章提出基于动模试验研究大型发电机深度进相特性的方法,并以某600 MW发电机组为原型机,基于相似原理设计了大型同步发电机进相运行动态模拟的发电机、主变、线路等模型机参数,搭建了发电机进相运行动模系统,开展了不同进相深度工况的发电机进相动模研究,分析了发电机进相动模结果,指出了影响发电机进相动模试验精度的电气参数模拟误差、外串阻抗无饱和现象、模拟系统容量下磁路饱和反映不真实等影响因素。通过建立的模型发电机组进相试验结果与现场实际600 MW进相试验结果的比较,验证了所设计的动模模型的正确性和有效性。
Synchronous generator leading phase operation has become a widely used means of power grid voltage regulation. Dynamic simulation test is a kind of important research method of power system discipline. Due to the importance of the safe operation of power grid, it is not allowed that actual deep leading phase test of generator to be carried out. A method based on the dynamic simulation test for the research of characteristics of large generator deep leading phase is proposed in this paper. And taking a 600 MW generator unit as the prototype, it designs the large synchronous generator leading phase operation dynamic simulation parameters such as generator, main transformer and circuit based on the similarity principle, and sets the generator leading phase operation dynamic simulation system. The dynamic simulation test on various working conditions of different leading phase depth for generator model is carried out, and dynamic simulation test result is analyzed, the influence factors of the dynamic simulation test precision are point- ed out such as the simulation error of electrical parameters, the series impedance without saturation phenomenon and magnetic circuit saturation reflect not true under the simulation system capacity. A comparison of dynamic simulation test results of generator model established with leading phase test results of 600MW generator shows that the dynamic model design is correctness and validity.
出处
《电测与仪表》
北大核心
2016年第2期118-124,共7页
Electrical Measurement & Instrumentation
关键词
同步发电机
进相
动模试验
设计
synchronous generator, leading phase, dynamic simulation test, design
