抽水蓄能发电机组变频起动过程的建模及仿真  

Modeling and Simulation of the Variable Frequency Starting Process of Pumped Storage Generating Units

作　　者：何雄开[1] 毛承雄[1] 陆继明[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《大电机技术》2006年第4期9-13,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：用于抽水蓄能机组起动的静止变频器,其整流逆变桥通常采用普通晶闸管。本文建立了抽水蓄能机组静止变频器在电流、频率闭环控制下的数学模型。建模过程中对变频器逆变侧晶闸管的换流重叠角进行了简化处理,提出以定逆变侧控制角连续调节整流侧控制角实现调压调频的控制方案。仿真得出抽水蓄能机组静止变频起动系统各物理量的变化规律。The static frequency converter used in pumped storage units generally adopts common thyristor as the rectifying inverting bridge. In this paper, a mathematical model of static frequency converter＇starting with current and frequency closed-loop control for pumped storage units is established. In the thyristor inverting process, converting overlap angel at frequency converter＇s inverting side has been simplified. A controlling scheme of continuously adjusting rectifying side＇s controlling angle with static inverting side＇s control angle is proposed to realize the frequency modulation and voltage regulation. The trend of each physical quantity of the static frequency converter starting system is obtained by simulation.

关 键 词：静止变频器 抽水蓄能发电机组 仿真 起动 

分 类 号：TM341[电气工程—电机]