用于励磁控制器参数优化的发电机外部动态等值系统参数辨识  

Parameter Identification of Dynamic Equivalent System for Parameter Optimization of Generator Excitation Controller

作　　者：朱良合[1] 罗坚强[2] 毛承雄[2] 盛超[1] 陆继明[2] 翁洪杰[1] 栾会[2] 张俊峰[1] 

机构地区：[1]广东电网公司电力科学研究院,广东广州510080 [2]华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074

出　　处：《水电能源科学》2014年第7期147-150,共4页Water Resources and Power

摘　　要：针对静态等值系统不能完全反映近端机组对被研究发电机的动态影响,提出了一种动态等值系统,即将远方复杂的大电网和近端同母线机组分别等值为无穷大母线和动态机组,通过Matlab编程搭建了动态等值系统,提出了穷举辨识算法,仅根据研究发电机机端数据即可辨识出动态等值系统的参数,并通过大电网数据辨识及PSS参数优化验证了动态等值系统参数辨识的有效性。Aiming at the problem that the static equivalence system can not reflect the influence of proximal generators on dynamic performance of the generator completely, a dynamic equivalent system is proposed to reflect the actual external system more accurately. In the dynamic equivalent system, a dynamic generator in parallel with an infinite bus is used to equivalent the proximal generators and the large power grid faraway. A dynamic equivalent system based on Mat- lab is built, and an exhaustive identification algorithm is proposed to identify parameters of the dynamic equivalent system. Identification results by using large power grid simulation data and parameter optimization of PSS show that the method is reliable.

关 键 词：励磁控制器 静态等值 动态等值 穷举辨识算法 PSS参数优化 

分 类 号：TM71[电气工程—电力系统及自动化]