摘要
研究了双馈风力发电机的原理特点,分析了双馈风力发电机的数学模型和考虑尾流损失的风电场模型,分析了低电压穿越规定和Crowbar保护电路对故障计算的影响;结合配电网的结构特点,在前推回代的基础上,采用三相潮流和短路计算统一的分析方法。最后利用Matlab编程对13节点算例进行了不同故障情况下故障计算,验证了该思路的有效性和可行性。
This paper studies the principle of DFIG wind generation characteristics, analyzes the mathematical model of DFIG wind generation and wind generation farm considering wake losses, and also analyzes the low voltage ride through （LVRT） and the influence of Crowbar protection circuit on failure calculation. Combined with the structural characteristics of distribution network, based on back/forward sweep method, the paper gives the analysis method which combines the three-phase flow and short-circuit calculate in unity. Finally, different fault conditions for 13 nodes system is calculated using matlab programming codes, and the effectiveness and feasibility of this idea is verified.
出处
《陕西电力》
2011年第10期32-36,共5页
Shanxi Electric Power
