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基于暂态能量流的双馈风电机组强迫振荡源定位
Forced Oscillation Source Location of Doubly-fed Wind Turbine Based on Transient Energy Flow
- 电力系统自动化-方正平台 2020年44卷第10期 页码：103-110
- 作者机构：
山东科技大学电气与自动化工程学院，山东省青岛市 266590
- 作者简介：
曹娜(1971—)，女，博士，教授，主要研究方向：可再生能源发电技术。E-mail：caona_2006@163.com
赵旭(1994—)，男，通信作者，硕士研究生，主要研究方向：可再生能源发电技术。E-mail：2465740593@qq.com
于群(1970—)，男，博士，教授，主要研究方向：电力系统安全分析、继电保护。E-mail：yuqun_70@163.com
- 基金信息：山东省自然科学基金资助项目(ZR2016EEM13);国家电网公司科技项目(XTB17201800166)
DOI：10.7500/AEPS20190527005
中图分类号：收稿日期：2019-05-27，
修回日期：2019-10-10，
网络出版日期：2020-03-27，
纸质出版日期：2020-05-25
- 稿件说明：
移动端阅览
曹娜,赵旭,于群.基于暂态能量流的双馈风电机组强迫振荡源定位[J].电力系统自动化,2020,44(10):103-110.
CAO Na,ZHAO Xu,YU Qun.Forced Oscillation Source Location of Doubly-fed Wind Turbine Based on Transient Energy Flow[J].Automation of Electric Power Systems,2020,44(10):103-110.
曹娜,赵旭,于群.基于暂态能量流的双馈风电机组强迫振荡源定位[J].电力系统自动化,2020,44(10):103-110. DOI： 10.7500/AEPS20190527005.
CAO Na,ZHAO Xu,YU Qun.Forced Oscillation Source Location of Doubly-fed Wind Turbine Based on Transient Energy Flow[J].Automation of Electric Power Systems,2020,44(10):103-110. DOI： 10.7500/AEPS20190527005.
摘要
暂态能量流法是一种新型的振荡源定位方法。首先，根据暂态能量流的计算公式，结合双馈风电机组的轴系模型、网侧变换器模型及双馈感应电机的三阶简化模型，推导适用于双馈风电机组的暂态能量流，并定义能流功率作为判断能量流向的指标。然后，对双馈风电机组加入强迫振荡源后的频率特性进行分析。最后，基于PSCAD/EMTDC电磁暂态仿真平台搭建包含强迫振荡源的单机无穷大系统和多台风电机组经串补并网系统进行时域仿真。利用采集的数据计算暂态能量流和能流功率，验证了暂态能量流法对双馈风电机组强迫振荡源定位的有效性。
Abstract
Transient energy flow method is a new method for locating oscillation sources. Firstly
according to the calculation formula of transient energy flow
combined with the shafting model
the grid-side converter model of doubly-fed wind turbine and the third-order simplified model of doubly-fed induction motor
the transient energy flow for doubly-fed wind turbine is deduced and the energy flow power is defined as an index of the energy flow direction. Secondly
the frequency characteristics of the doubly-fed wind turbine are analyzed after the forced sources are added. Finally
based on the PSCAD/EMTDC electromagnetic transient simulation platform
a single-machine infinite system with forced oscillation sources and a grid connection system of several wind turbines via series compensated line are built for time-domain simulation. Transient energy flow and energy flow power are calculated using the collected data. The validity of the transient energy flow method for locating the forced oscillation sources of doubly-fed wind turbines is verified.
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references
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