首页|Torque Limit-based Inertial Control Method Based on Delayed Support for Primary Frequency Control of Wind Turbines

Torque Limit-based Inertial Control Method Based on Delayed Support for Primary Frequency Control of Wind Turbines

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To avoid the secondary frequency dip caused by the steep drop of the electrical power of wind turbines(WTs)at the end of frequency support stage,the torque limit-based iner-tial control(TLIC)method sets the power reference as a linear function of rotor speed,rather than the step form for the step-wise inertial control.However,the compensation effect on the frequency nadir(FN)caused by the load surge is weakened as the TLIC power is no longer in the step form.Specifically,the maximum point of the frequency response component(FRC)contributed by TLIC occurs earlier than the minimum point of FRC corresponding to the load surge,so that the FN cannot be adequately raised.Therefore,this paper first investigates the re-lation between the peak and nadir times of FRCs stimulated by the TLIC and load power.On this basis,with the compensation principle of matching the peak and nadir times of FRCs,the improved TLIC method based on delayed support is proposed.Finally,the effectiveness of the proposed method is validated via the experiments on the test bench of wind-integrated power system.

Wind turbinefrequency response componenttorque limitinertial controldelayed support

Wei Gu、Zaiyu Chen、Qun Li、Minghui Yin、Qiang Li、Yun Zou

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School of Automation,Nanjing University of Science and Technology,Nan-jing 210094,China

State Grid Jiangsu Electric Power Co.,Ltd.Research Institute,Nanjing 211103,China

国家自然科学基金the"Six Talent Peaks"High-level Talent Project in Jiangsu ProvinceSpecial Fund of Jiangsu Province for Transformation of Scientific and Technological Achievements江苏省"青蓝工程"项目

51977111XNY-025BA2019045

2024

10.35833/MPCE.2022.000773

现代电力系统与清洁能源学报(英文版)

现代电力系统与清洁能源学报(英文版)

ISSN：
年,卷(期)：2024.12(2)
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