Paralleling Frequency Difference Setting inPower System Restoration

摘要：

The paralleling operation between generator and system, even between bilateral systems, will cause frequency oscillation since the system scale is small in the initial period of power system restoration. In addition, variable system structure also increases the paralleling complexity. By adjusting the setting value of automatic synchronizing devices reasonably and promptly, the accuracy of paralleling can be improved. This paper presents a simplified model to simulate parallelingoperation. Based on a step-by-step simulation, a curve describing the relationship among frequency oscillation amplitude,frequency difference and rotary inertia ratio can be obtained.The frequency difference setting value of automatic synchronizing devices can be determined based on this curve. Simulation results of Shandong Power Grid in China demonstrate the proposed method is feasible.

关键词： Frequency difference Frequency oscillation Paralleling Power system restoration Rotary inertia ratio

作者: Zaiji Yuan Yutian Liu

作者单位: School of Electrical Engineering, Shandong University, Jinan 250061, China

会议类型: 国际会议

会议名称: The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1-4

在线出版日期: 2009-07-05（万方平台首次上网日期，不代表论文的发表时间）