中国电机工程学报2026，Vol.46Issue(8)：3080-3090,中插2,12.DOI:10.13334/j.0258-8013.pcsee.242468
火电-新能源组合系统的暂态功角稳定和暂态过电压耦合特性分析
Coupling Characteristics Analysis between Transient Rotor Angle Instability and Transient Over-voltage in Combined Generating System of Thermal Power and New Energy
摘要
Abstract
In a thermal power-renewable energy combined transmission system,the transient power rotor angle instability of thermal power units and the transient over-voltage at the renewable energy generator terminals are important issues that limit the transmission capacity.First,an analytical equation for the power rotor angle variation of thermal power units considering the negative impedance characteristics of new energy is established,and the new transient power rotor angle stability characteristics of thermal power units after the integration of new energy are analyzed.Secondly,based on the Thévenin equivalent and vector analysis method,the transient over-voltage at the new energy machine terminal is analyzed,and the influencing factors of transient over-voltage are discussed.Next,through formula analysis and electromagnetic transient simulations,the coupling relationship between two types of transient over-voltages is highlighted.Finally,using a practical engineering case as an example,this study analyzes the dominant risk modes under different scenarios,and proposes operational modes under two integrated risk constraints.The research results provide technical references for the safe and stable operation of thermal power-renewable energy combined energy bases in the new situation.关键词
暂态功角稳定/暂态过电压/影响因素/耦合特性/外送能力Key words
transient rotor angle stability/transient over-voltage/influencing factors/coupling characteristics/transmission capacity分类
信息技术与安全科学引用本文复制引用
杨玉新,王劲松,朱永利,高本锋,杨海超,吴瑊..火电-新能源组合系统的暂态功角稳定和暂态过电压耦合特性分析[J].中国电机工程学报,2026,46(8):3080-3090,中插2,12.基金项目
国家重点研发计划项目(2021YFB2400800).National Key R&D Program of China(2021YFB2400800). （2021YFB2400800）
