现代电子技术Issue(10)：151-155,5.
三电平变流器高电压穿越下的中点电压控制研究
Research on neutral-point voltage balancing control of three-level converter under high-voltage ride conditions
孙健 1刘刚 1赵宇 1高亚春 2牛虎 3宋堃3
作者信息
- 1. 许继柔性输电系统公司，河南 许昌 461000
- 2. 许继风电科技有限公司，河南 许昌 461000
- 3. 国网新能源张家口风光储示范电站有限公司，河北 张家口 075000
- 折叠
摘要
Abstract
For high⁃voltage across conditions,the neutral point voltage mathematical model of neutral⁃point⁃clamped three⁃level converter is analyzed and three⁃phase power & zero⁃sequence voltage transfer function is derived. A novel zero⁃sequence voltage injection strategy for neutral⁃point voltage balance is proposed. The strategy,which uses three⁃phase power to calculate the zero⁃sequence voltage component,and overlaps it to the fundamental⁃wave modulation wave through 3s/2s coordinate transfor⁃mation,is realized. Matlab simulation of control strategy shows good dynamic response effect.关键词
三电平变流器/中点钳位/中点电压平衡/零序电压Key words
three-level converter/neutral-point clamp/neutral-point voltage balance/zero sequence voltage分类
信息技术与安全科学引用本文复制引用
孙健,刘刚,赵宇,高亚春,牛虎,宋堃..三电平变流器高电压穿越下的中点电压控制研究[J].现代电子技术,2015,(10):151-155,5.
