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In order to study the influence mechanism of rotor-side converter and its control system on damping characteristics of doubly-fed wind turbine, a dynamic model of the wind turbine under small disturbance state is constructed considering mechanical torque, electromagnetic torque, transient potential, rotor-side converter control, voltage control and angle offset. Then, the damping torque and synchronous torque expressions of the doubly-fed wind turbine are derived based on the complex torque coefficient method. The damping torque is related to the oscillation frequency, wind speed, mechanical parameters, electrical parameters and control system parameters of the wind turbine, and the control parameters of the inner and outer loops of the rotor-side converter are coupled with each other to affect the damping of the wind turbine. Finally, the mathematical model is verified by time domain simulation and frequency domain simulation. The results show that the model has applicability at different oscillation frequencies.

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为研究转子侧变流器及其控制系统对双馈风电机组阻尼的影响机理,考虑机械转矩、电磁转矩、暂态电势、转子侧变流器控制、电压控制以及角度偏移等环节,构建小干扰状态下机组动态模型;然后基于复转矩系数法,推导双馈风电机组阻尼转矩和同步转矩表达式,得到阻尼转矩与机组振荡频率、风速、机组机械参数、电气参数及控制系统参数有关,转子侧变流器内环、外环控制参数之间相互耦合,共同影响机组的阻尼;最后,通过仿真对所建数学模型进行验证。仿真验证结果表明:在不同振荡频率下,所建模型均具有适用性。

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冯勋强(1970),男,硕士,高级工程师,主要研究方向为电力系统及其自动化,

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冯勋强(1970),男,硕士,高级工程师,主要研究方向为电力系统及其自动化,

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冯勋强(1970),男,硕士,高级工程师,主要研究方向为电力系统及其自动化,

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基于复转矩系数法的双馈风电机组阻尼转矩建模
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冯勋强 1 , 曹娜 2 , 荣坤 2
热力发电 | 风电系统运行控制及优化调度技术 2023,52(3): 151-159
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热力发电 | 风电系统运行控制及优化调度技术 2023, 52(3): 151-159
基于复转矩系数法的双馈风电机组阻尼转矩建模
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冯勋强1 , 曹娜2, 荣坤2
作者信息
  • 1.国网山东省电力公司利津县供电公司,山东 利津 257400
  • 2.山东科技大学电气与自动化工程学院,山东 青岛 266590
  • 冯勋强(1970),男,硕士,高级工程师,主要研究方向为电力系统及其自动化,

Modeling of damping torque of doubly fed wind turbine based on complex torque coefficient method
Xunqiang FENG1 , Na CAO2, Kun RONG2
Affiliations
  • 1.China State Grid Shandong Electric Power Company Lijin County Power Supply Company, Lijin 257400, China
  • 2.College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China
出版时间: 2023-03-25 doi: 10.19666/j.rlfd.202210279
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为研究转子侧变流器及其控制系统对双馈风电机组阻尼的影响机理,考虑机械转矩、电磁转矩、暂态电势、转子侧变流器控制、电压控制以及角度偏移等环节,构建小干扰状态下机组动态模型;然后基于复转矩系数法,推导双馈风电机组阻尼转矩和同步转矩表达式,得到阻尼转矩与机组振荡频率、风速、机组机械参数、电气参数及控制系统参数有关,转子侧变流器内环、外环控制参数之间相互耦合,共同影响机组的阻尼;最后,通过仿真对所建数学模型进行验证。仿真验证结果表明:在不同振荡频率下,所建模型均具有适用性。

双馈风电机组  /  阻尼转矩  /  复转矩系数法  /  变流器  /  控制系统

In order to study the influence mechanism of rotor-side converter and its control system on damping characteristics of doubly-fed wind turbine, a dynamic model of the wind turbine under small disturbance state is constructed considering mechanical torque, electromagnetic torque, transient potential, rotor-side converter control, voltage control and angle offset. Then, the damping torque and synchronous torque expressions of the doubly-fed wind turbine are derived based on the complex torque coefficient method. The damping torque is related to the oscillation frequency, wind speed, mechanical parameters, electrical parameters and control system parameters of the wind turbine, and the control parameters of the inner and outer loops of the rotor-side converter are coupled with each other to affect the damping of the wind turbine. Finally, the mathematical model is verified by time domain simulation and frequency domain simulation. The results show that the model has applicability at different oscillation frequencies.

doubly-fed wind turbine  /  damping torque  /  complex torque coefficient method  /  converter  /  control system
冯勋强, 曹娜, 荣坤. 基于复转矩系数法的双馈风电机组阻尼转矩建模. 热力发电, 2023 , 52 (3) : 151 -159 . DOI: 10.19666/j.rlfd.202210279
Xunqiang FENG, Na CAO, Kun RONG. Modeling of damping torque of doubly fed wind turbine based on complex torque coefficient method[J]. Thermal Power Generation, 2023 , 52 (3) : 151 -159 . DOI: 10.19666/j.rlfd.202210279
  • 山东省自然科学基金项目(ZR2016EEM13)
  • 国家电网公司2018年科技项目(XTB17201800166)
2023年第52卷第3期
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文章信息
doi: 10.19666/j.rlfd.202210279
  • 接收时间:2022-10-28
  • 首发时间:2026-01-23
  • 出版时间:2023-03-25
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  • 收稿日期:2022-10-28
基金
Natural Science Foundation of Shandong Province(ZR2016EEM13)
山东省自然科学基金项目(ZR2016EEM13)
Science and Technology Project of SGCC in 2018(XTB17201800166)
国家电网公司2018年科技项目(XTB17201800166)
作者信息
    1.国网山东省电力公司利津县供电公司,山东 利津 257400
    2.山东科技大学电气与自动化工程学院,山东 青岛 266590
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小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
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