| 基于同伦函数的直驱永磁同步风电机组次同步振荡特征值分析 |
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| 引用本文： | 王淼,赵峰. 基于同伦函数的直驱永磁同步风电机组次同步振荡特征值分析[J]. 电机与控制应用, 2018, 45(9): 89-96 |
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| 作者姓名： | 王淼 赵峰 |
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| 作者单位： | 兰州交通大学自动化与电气工程学院;兰州交通大学光电技术与智能控制教育部重点实验室 |
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| 基金项目： | 光电技术与智能控制教育部重点实验室(兰州交通大学)开放课题(KFKT20166) |
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| 摘 要： | 为了研究直驱永磁同步风电机组的次同步振荡问题,建立了典型的风电系统数学模型。在使用传统特征值分析法的基础上,利用同伦函数代替参与因子法,准确且直观地辨识出系统振荡模态特征值对应的状态变量。在此基础上进一步分析状态变量对应的参数对系统振荡模态特征值的影响。最后,通过PSCAD/EMTDC平台进行时域仿真。结果表明:直流电压控制外环积分系数和电流控制内环比例系数对系统的次同步振荡有很大影响。
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| 关 键 词： | 直驱永磁同步风电机组 次同步振荡 特征值分析 同伦函数 |
| 收稿时间： | 2018-03-12 |
Eigenvalue Analysis on SubSynchronous Oscillation of DirectDrive Permanent Magnet Synchronous Wind Turbine Generator Based on Homotopy Function |
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| WANG Miao and ZHAO Feng. Eigenvalue Analysis on SubSynchronous Oscillation of DirectDrive Permanent Magnet Synchronous Wind Turbine Generator Based on Homotopy Function[J]. Electric Machines & Control Application, 2018, 45(9): 89-96 |
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| Authors: | WANG Miao and ZHAO Feng |
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| Affiliation: | College of Electrical Engineering and Automation, Lanzhou Jiaotong University, Lanzhou 730070, China and College of Electrical Engineering and Automation, Lanzhou Jiaotong University, Lanzhou 730070, China;Key Laboratory of Optoelectronic Technology and Intelligent Control, Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | In order to study the subsynchronous oscillation problem of the directdrive permanent magnet synchronous wind turbine generator, a typical mathematical model of wind power system was established. Based on the traditional eigenvalue analysis method, the state variables corresponding to the eigenvalues of system oscillation mode were identified intuitively and accurately by using the homotopy function instead of the participation factor method. On this basis, the influence of corresponding parameters of state variables on the eigenvalue of system oscillation mode was further analyzed. Finally, time domain simulation was carried out on the PSCAD/EMTDC platform. The results showed that the outer ring integration coefficient of DC voltage control and the inner ring proportionality coefficient of current control influenced the subsynchronous oscillation of system greatly. |
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| Keywords: | directdrive permanent magnet synchronous wind turbine generator(DDPMSG) subsynchronous oscillation eigenvalue analysis homotopy function |
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