Optimal Initialization and Starting Approach of Synchronous Condenser Integrated Power Grid  

作　　者：Puyu Wang Xing Liu Qingwen Mou Tao Yuan Tianming Gu Hemin Yang Xiao-Ping Zhang Zhengrong Xiang Chunyi Guo 

机构地区：[1]School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China [2]NARI Group Corporation/State Grid EPRI and also with NARI Technology Co.Ltd.,Nanjing 211106,China [3]School of Engineering,University of Birmingham,Birmingham,B152TT,United Kingdom [4]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China

出　　处：《CSEE Journal of Power and Energy Systems》2024年第1期248-260,共13页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by the National Natural Science Foundation of China under Grant 51807091;the Natural Science Foundation of Jiangsu Province BK20180478;the China Postdoctoral Science Foundation under Grant 2019M661846;the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources under Grant LAPS20016;Engineering and Physical Sciences Research Council under Grant EP/N032888/1.

摘　　要：Synchronous condensers(SCs)are generally used at the receiving-end stations of ultra-high-voltage direct current(UHVDC)transmission systems due to their strong reactive power support and flexible regulation of reactive power according to the interconnected grids operating conditions.In this paper,different starting control schemes of a SC integrated power grid are investigated providing four main contributions:1)The principle of reactive power support of the SC on the interconnected power grid is analytically studied,providing the establishment of mathematical models.2)Four different starting control schemes are developed for the initialization and SC integration,i.e.in Scheme 1,a preset initial falling speed is directly utilized without initialization;in Scheme 2,a black start sequential control approach with a static frequency converter(SFC)is proposed;in Scheme 3,PI/PD/PID controllers are respectively applied for the excitation device at the speed-falling stage;in Scheme 4,a pre-insertion approach of an energy absorption component with R/L/RL is utilized to suppress the surges at the SC integration instant.3)The dynamic behaviors of four different starting schemes at specific operating stages are evaluated.4)The success rate of SC integration is analyzed to evaluate starting control performance.Performance of the SC interconnected system with four different starting control schemes is evaluated in the timedomain simulation environment PSCAD/EMTDC^(TM).The results prove the superiority of the proposed starting control approach in Scheme 4.

关 键 词：Black start dynamic behaviors excitation system pre-insertion of energy absorption components starting control schemes static frequency converter(SFC) success rate of integration synchronous condenser(SC) 

分 类 号：TM53[电气工程—电器]