CAJ | 학술논문

研究了系统失步时两侧电势幅值不相等及系统运行方式变化对振荡中心和失步中心的影响，构造了振荡中心位置函数，提出一种新的解列方案。该方案利用ucos?配合振荡中心位置函数的变化率启动解列装置，综合振荡中心的漂移特点、失步中心的位置和解列后孤岛不平衡度来搜索解列断面，能有效区分同步振荡和失步振荡，捕捉振荡中心的变化轨迹和失步中心的位置，不受系统运行方式变化和结构改变的影响。MATLAB仿真验证了所提方案的有效性。
연구료계통실보시량측전세폭치불상등급계통운행방식변화대진탕중심화실보중심적영향，구조료진탕중심위치함수，제출일충신적해렬방안。해방안이용ucos?배합진탕중심위치함수적변화솔계동해렬장치，종합진탕중심적표이특점、실보중심적위치화해렬후고도불평형도래수색해렬단면，능유효구분동보진탕화실보진탕，포착진탕중심적변화궤적화실보중심적위치，불수계통운행방식변화화결구개변적영향。MATLAB방진험증료소제방안적유효성。
When power grid operates under out-of-step condition, the impacts of unequal potential amplitudes at both out-of-step sides and the change of operation modes on oscillation center and out-of-step center are researched and the function of oscillation center position is constructed, and a new splitting scheme is proposed. In the proposed scheme, the splitting device is started up byucos? coordinated with the change rate of the function of oscillation center position, and searching the splitting interface by synthesizing the drifting characteristics of oscillation center and the position of out-of-step center with the degree of unbalancedness of post-splitting island can effectively distinguish synchronous oscillation from asynchronous oscillation, and the variation trajectory of oscillation center as well as the position of out-of-step center can be captured and not affected by the change of system topology and operation modes. The validity of the proposed scheme is verified by MATLAB based simulation results.