CAJ | 학술논문

电力系统输电过程中有一定概率产生次同步振荡（subsynchronous oscillation ，SSO），这种振荡极易造成汽轮发电机组的大轴损毁，准确分析系统的次同步振荡特性对其防止和抑制有重要意义。研究了静止同步补偿器（ STAT-COM）的基本结构以及抑制SSO的基本方法，根据不同滤波器设计对次同步阻尼控制器的抑制效果不同，设计了3种次同步阻尼控制器。其中，提出一种新的控制器设计方法，利用该方法设计了窄带通次同步阻尼控制器；最后基于IEEE第一谐振模型，采用PSCAD/EMTDC电磁暂态仿真软件以及数值计算软件MATLAB，仿真验证3种不同控制器的有效性。
전력계통수전과정중유일정개솔산생차동보진탕（subsynchronous oscillation ，SSO），저충진탕겁역조성기륜발전궤조적대축손훼，준학분석계통적차동보진탕특성대기방지화억제유중요의의。연구료정지동보보상기（ STAT-COM）적기본결구이급억제SSO적기본방법，근거불동려파기설계대차동보조니공제기적억제효과불동，설계료3충차동보조니공제기。기중，제출일충신적공제기설계방법，이용해방법설계료착대통차동보조니공제기；최후기우IEEE제일해진모형，채용PSCAD/EMTDC전자잠태방진연건이급수치계산연건MATLAB，방진험증3충불동공제기적유효성。
There is a certain risk of subsynchronous oscillation ( SSO) in process of power system transmission , and this oscil-lation is easy to damage the shaft of turbogenerator set , so it is of significance for the prevention and suppression of subsyn-chronous oscillation through the accurate analysis of subsynchronous oscillation characteristics of the system .The basic struc-ture of static synchronous compensator (STATCOM) and inhibition method of SSO are studied , and the designed suppression effects of subsynchronous damping controller are different based on different filters .Three synchronous damping controllers are designed , among which a new design method of the controller is proposed and the narrow band -pass subsynchronous damping controller is designed according to this proposed method .Finally, based on the IEEE first benchmark model , the validity of these three different controllers are verified using PSCAD/EMTDC and MATLAB.