电气传动2019，Vol.49Issue(7)：69-72,85,5.DOI:10.19457/j.1001-2095.dqcd18714
撬棒附加动态电容的双馈风电低电压穿越控制
Low Voltage Ride-through of Doubly-fed Induction Generators Based on Crowbar Additional Dynamic Capacitor
摘要
Abstract
The relationship between the reactive power that DFIG(doubly-fed induction generator)absorbed from the grid and crowbar resistance when crowbar protect cut-in during the LVRT(low voltage ride through)was discussed, the control strategy of LVRT additional dynamic capacitance was put forward. According to the speed operating range of the DFIG,the capacitance calculated in three different slips was selected as a spare switching capacitor. The closed and open state of IGBT was selected according to the speed requirement,the purpose was to produce a capacitor combination that was close to the calculated value. The proposed control strategy was verified on a 10 kW LVRT of DFIG experimental platform,the results show that the structure can reduce the rotor current overshoot and effectively promote the fast recovery of grid voltage.关键词
撬棒/动态电容/双馈风力发电/低电压穿越Key words
crowbar/dynamic capacitor/doubly fed wind power generation/low voltage ride-through(LVRT)分类
信息技术与安全科学引用本文复制引用
张文娟..撬棒附加动态电容的双馈风电低电压穿越控制[J].电气传动,2019,49(7):69-72,85,5.基金项目
国家自然科学基金(51207002) （51207002）
陕西省科技厅工业攻关项目(2013K07-12,2018GY-066) （2013K07-12,2018GY-066）
陕西省教育厅专项研究计划项目(17JK0049) （17JK0049）
宝鸡文理学院重点科研计划项目(ZK2018067) （ZK2018067）
