| 风电系统中几种电网电压跌落检测方法的比较研究 |
| |
| 引用本文： | 何向涛,胡书举,赵斌.风电系统中几种电网电压跌落检测方法的比较研究[J].电气传动,2010,40(7). |
| |
| 作者姓名： | 何向涛 胡书举 赵斌 |
| |
| 作者单位： | 1. 中国科学院,电工研究所,北京,100190;中国科学院,研究生院,北京,100190;中国科学院,风能利用重点实验室,北京,100190
2. 中国科学院,电工研究所,北京,100190;中国科学院,风能利用重点实验室,北京,100190 |
| |
| 摘 要： | 新的电网规则要求风电机组具有低电压穿越能力,快速准确地检测出电网电压的跌落故障,是风电机组主控和变流器进行相应控制的前提条件.详细介绍和讨论了适用于三相对称故障的常规dq变换法,适用于单相不对称跌落故障的改进dq变换法和适用于复杂不对称跌落故障的正序电压检测法的工作原理及其优缺点.常规dq变换法和改进dq变换法的仿真和实验结果表明,这两种方法能够快速准确地检测出电网电压的跌落信号,正序电压检测法的仿真结果表明,该方法能够快速准确地检测出复杂故障情况下的电网电压正序分量.
|
| 关 键 词： | 风电系统 电网故障 低电压穿越 电压跌落检测 正序电压 |
Comparison Research on Several Voltage Sag Detection Methods for Wind Power System |
| |
| HE Xiang-tao,HU Shu-ju,ZHAO Bin.Comparison Research on Several Voltage Sag Detection Methods for Wind Power System[J].Electric Drive,2010,40(7). |
| |
| Authors: | HE Xiang-tao HU Shu-ju ZHAO Bin |
| |
| Affiliation: | HE Xiang-tao1,2,3,HU Shu-ju1,ZHAO Bin1,3(1.Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China,2.Graduate University,3.Key Laboratory of Wind Energy,China) |
| |
| Abstract: | Low voltage ride through(LVRT)capability is required by new grid code.When the grid fault occurs,accurate and fast detection of grid voltage component is essential to the wind power control and converter control.Conventional dq transformation method for three-phase symmetrical fault,improved dq transformation method for single-phase falling failure and positive sequence method for complex grid faults were explained in detail,inculding its work principles,advantages and disadvantages.Simulation and experimen... |
| |
| Keywords: | wind power system grid fault low voltage ride through(LVRT) voltage sag detection positive sequence voltage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
