中国电机工程学报2016，Vol.36Issue(17)：4572-4579,8.DOI:10.13334/j.0258-8013.pcsee.151930
利用相平面轨迹特性的暂态稳定控制切机负效应的机理研究
Theoretical Research on Negative Effect Problems Caused by Generator Tripping in Transient Stability Control Based on Trajectory Characteristic
摘要
Abstract
Generator tripping is usually taken in advanced generator group in transient stability control. There are many methods for selecting the right generators tripped, but it is lack of theoretical analysis and detection method on negative effect problems caused by generator tripping. For this problem, with theω−δ curves of motion of a generator in disturbed power system, this paper defined positive effect area and negative effect area of generator tripping according to the transient instability trajectories. Based on the detailed analysis of boundary conditions of generator tripping, control effect in multi-machine power system was discussed and the mechanism of negative effect problems caused by generator tripping was shown, then a method to detect the negative effect before control actions taken was presented. This method only needs wide-area measurement information, can detect the generators to avoid negative effect. Simulation results show that the method is effective and can offer technical support for real-time transient stability analysis based on wide-area measurement information.关键词
电力系统/广域量测信息/暂态稳定/切机控制措施/切机负效应Key words
power system/wide-area measurement information/transient stability/generator tripping/negative effect of generator tripping分类
信息技术与安全科学引用本文复制引用
吴为,饶宏,洪潮,金小明,柳勇军..利用相平面轨迹特性的暂态稳定控制切机负效应的机理研究[J].中国电机工程学报,2016,36(17):4572-4579,8.基金项目
南方电网公司科技项目(CSGTRC-K142034)。Supported by China Southern Power Grid (CSGTRC-K142034) （CSGTRC-K142034）
