改善双馈风电机组适应高电压穿越并网性能的方法  

Methods to Improve Performance of DFIG Wind Turbine Adapting to High Voltage Traversing

作　　者：成健 强喜臣 刘健华 CHENG Jian;QIANG Xichen;LIU Jianhua(Dongfang Wind Power Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]东方电气东方风电有限公司,四川德阳618000

出　　处：《东方汽轮机》2022年第3期65-70,共6页Dongfang Turbine

摘　　要：双馈风电机组接入电网需适应高电压穿越并网性能要求;相关国家标准制定的技术指标确定额定电压范围和高电压穿越范围。对于电网不同区域接入电网运行的双馈风电机组,高电压穿越并网性能技术指标要求是不同的。双馈风电机组在满足现有的相关国家标准情况下,可以利用新的技术方法拓宽额定电压范围和提高高电压穿越范围;另外,给出相关公式计算双馈风电机组高阻抗变压器动态和稳态调压范围;提出双馈风电机组额定电压双坐标系转换方法,以及额定电压范围和高电压穿越范围转换计算公式,可以计算双馈风电机组增容降压后的额定电压范围和高电压穿越范围。The DFIG connected to the power grid needs to meet the requirements of high voltage traversing and grid-connected performance.For the doubly-fed wind turbines connected to the power grid in different areas,the technical requirements of highvoltage traversing grid-connected performance are different.In the case of meeting the existing relevant national standards,the doubly-fed wind turbine may use new technical methods to widen the rated voltage range and increase the high voltage traversal range,the high impedance transformer technology is used in the double-fed wind turbine.In addition,the related formulas are given to calculate the dynamic and steady-state voltage regulation range of the high impedance transformer for doubly fed wind turbines,and the conversion method of the rated voltage double coordinate system for doubly fed wind turbines is proposed,and the conversion formula of rated voltage range and high voltage across range can be used to calculate the rated voltage range and high voltage across range of DFIG.

关 键 词：高阻抗变压器 额定电压范围 高电压穿越范围 双坐标系电压转换 转换计算公式 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]