| 基于转子串联动态电阻的自适应双馈风电机组低电压穿越方案 |
| |
| 引用本文： | 张俊峰,高〓亮,李春辉,屈子程,康保林. 基于转子串联动态电阻的自适应双馈风电机组低电压穿越方案[J]. 水电能源科学, 2019, 37(2): 155-159 |
| |
| 作者姓名： | 张俊峰 高〓亮 李春辉 屈子程 康保林 |
| |
| 作者单位： | 上海电力学院电气工程学院 |
| |
| 基金项目： | 国家自然科学基金项目(51607110)；上海市自然科学基金项目(14ZR1417600) |
| |
| 摘 要： | 针对基于转子串联电阻实现双馈风电机组低电压穿越的保护方式,在阻值选择时转子电流的限制效果与故障期间功率可控性之间存在矛盾的问题,通过对转子串电阻保护的理论分析,提出一种结合故障期间自适应选择转子串联电阻阻值和切换转子变换器控制模式的低电压穿越方案,能够实现根据电压跌落深度选择串联阻值且于不同故障区间内自适应切换阻值的串联动态电阻,使整个故障过程中风机处于受控状态,故障穿越更平稳,具有更好的暂态特性。PSCAD仿真结果表明,该方案具有较好的性能。
|
| 关 键 词： | 双馈风电机组；自适应控制；电压跌落深度；串联动态电阻；低电压穿越 |
Adaptive Low Voltage Ride Through of DFIG Wind Based on Rotor Series Dynamic Resistor |
| |
| Abstract: | This paper aims to solve the problem about the selection of rotor series resistance which is used to realize the low voltage ride through (LVRT) in double fed wind turbines. By analyzing the theory of the protection using rotor series resistance, this method can choose the rotor series resistance and switch the control mode of rotor convert according to the depth of voltage drop. In addition, for the adaptive switching resistance in different fault progress. This method is under control during the fault progress, so that the fault ride through is more smooth and steady, and the system has better quality in transient characteristics. The modeling and simulating result based on PSCAD software shows the effectiveness of this method. |
| |
| Keywords: | DFIG adaptive control depth of voltage drop series dynamic resistance LVRT |
| 本文献已被 CNKI 等数据库收录！ |
|
