静止无功补偿器和发射器在电弧炉动态无功补偿系统中的应用  

Application of static var compensation and static var generator in dynamic reactive power compensation system of electric arc furnace

作　　者：卢晶 茆华风 傅鹏[1,2] 李俊 沈显顺 吴亚楠 Lu Jing;Mao Huafeng;Fu Peng;Li Jun;Shen Xianshun;Wu Ya’nan(Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China;Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230031,China)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学研究生院科学岛分院,合肥230031

出　　处：《强激光与粒子束》2019年第5期73-79,共7页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(51707190)

摘　　要：发展高效绿色电炉冶炼技术是淘汰落后产能、钢铁产业调整升级的重要举措。电弧炉作为核心生产设备,防止其生产运行中无功冲击造成的电压跌落至关重要。而目前单一的有源、无源补偿方式无法同时满足电弧炉负荷日益增长的大容量且快速响应的无功补偿需求。研究了静止无功补偿器(SVC)和静止无功发射器(SVG)相结合的混联补偿方式,分析了SVC在分相不平衡大容量补偿及SVG在无功快速响应方面中的特性,并针对某钢厂电弧炉工作运行情况,计算其无功需求,充分利用其原有的SVC装置,设计混联SVG方案来抵消剩余无功缺口,使用PSCAD/EMTDC进行了联合应用仿真,证实其理论有效性。The development of high-efficiency green electric furnace smelting technology is an important measure to eliminate backward production capacity and upgrade the steel industry.It is essential to prevent voltage drops caused by reactive power shocks in electric arc furnace operations.At present,the single active or passive compensation method cannot meet the need of both the increasing large capacity load and fast response period of reactive power compensation device.The hybrid compensation method combining static var compensation(SVC) and static var generator(SVG) is studied in this paper.The characteristics of SVC in phase-separated unbalanced large-capacity compensation and SVG in fast response of reactive power are analyzed.The reactive power demand of an electric arc furnace is calculated.A hybrid scheme is designed to offset the residual reactive power gap,and PSCAD/EMTDC is applied for joint application simulation to confirm the theoretical validity.

关 键 词：电弧炉 动态无功补偿 SVC/SVG联合装置 PSCAD/EMTDC系统仿真 

分 类 号：TM712[电气工程—电力系统及自动化]