中国电机工程学报2018，Vol.38Issue(2)：637-643,7.DOI:10.13334/j.0258-8013.pcsee.171465
基于Gaussian算法的高压直流平抗瓦斯非线性耦合动态特性精细化建模
HVDC Smoothing Reactor Gas Relay Non-linear Coupled Dynamic Characteristics Detailed Model Based on Gaussian Algorithm
摘要
Abstract
In recent years,with a large number of HVDC transmission projects connected to the AC system in China,it has an important impact on the AC and DC hybrid power grid.The operational status of the DC system,especially the performance of its control and protection system,has become an important factor affecting the safety and stability of the AC and DC hybrid power grid.Fault in power grid triggered smoothing reactor gas protection misoperation is one of the important non-electrical factors leading to the locking of the DC system,this paper analyzes the principle and characteristics of smoothing reactor gas protection equipment,the Gaussian regression algorithm is used to simulate and decouple the nonlinear coupling characteristics of mechanical vibration and impulse current of smoothing reactor gas protection,which is compatible with electromagnetic transient algorithm.Electromagnetic simulation analysis using the proposed model in East China AC/DC power grid actual engineering example is carried out on the basis of State Grid Simulation Center Advanced Digital Power System Simulator(ADPSS),which can describe in detail the nonlinear quickly response dynamic characteristics for a variety of electric factors such as AC/DC power grid fault impact current dynamic changes to non-electrical quantity of smoothing reactor gas protection mechanical vibration acceleration.It provides key technical means for accident analysis,replay,prevention and equipment improvement of DC blocking caused by smoothing reactor gas protection misoperation which has occurred many times in practical engineering,it also has important practical significance for further improving the muhidimensional accuracy of DC practical engineering simulation,and provides ideas for detailed modeling of other nonlinear electrical related equipment.关键词
高压直流闭锁/换相失败/平抗瓦斯保护/非电气量/非线性动态特性Key words
HVDC block/DC commutation failure/smoothing reactor gas protection/non-electrical quantity/non-linear dynamic characteristics分类
信息技术与安全科学引用本文复制引用
郑伟杰..基于Gaussian算法的高压直流平抗瓦斯非线性耦合动态特性精细化建模[J].中国电机工程学报,2018,38(2):637-643,7.基金项目
国家自然科学基金(51477158) （51477158）
国家电网科技项目(XT71-16-016)—直流控制保护与受端电网配合性能提升技术研究.National Science Foundation of China (51107124) （XT71-16-016）
State Grid Technology Project of China (XT71-16-016). （XT71-16-016）
