基于转速差补偿环的双馈风机电网调频特性研究

孙浩宁; 王德林; 李京华

孙浩宁,王德林,李京华.基于转速差补偿环的双馈风机电网调频特性研究[J].电测与仪表,2025,62(8):62-67.
SUN Haoning,WANG Delin,LI Jinghua.Study on characteristics of frequency regulation of DFIG based on D-value of rotor speed compensation loop in power grid[J].Electrical Measurement & Instrumentation,2025,62(8):62-67.

基于转速差补偿环的双馈风机电网调频特性研究

Study on characteristics of frequency regulation of DFIG based on D-value of rotor speed compensation loop in power grid

DOI：j.issn1001-1390.2025.08.007

中文关键词: 双馈风电机组转子旋转能量转速差补偿备用功率量化输出数字化转型

英文关键词:DFIG, rotor rotation energy, D-value of rotor speed compensation, quantitative output of backup power, digital transformation

基金项目:国家自然科学基金资助项目（51477143）

作者中文名	作者英文名	单位
孙浩宁	SUN Haoning	西南交通大学电气工程学院
王德林	WANG Delin	西南交通大学电气工程学院
李京华	LI Jinghua	西南交通大学电气工程学院

摘要点击次数: 73

中文摘要:

针对双馈异步风力发电机组（double fed induction generator, DFIG）的特点，从转子动能入手，通过控制DFIG减载运行方式，协调风机的转子动能与减载功率之间的关系，控制转子能量的释放过程，充分利用转子的旋转动能，可以提升风机电网调频能力。在综合惯量控制的基础上，文章首次提出了通过附加转速差补偿环控制模块，能够更好地释放转子动能，使得DFIG能够进一步释放风机转子中的旋转动能，为电网提供短暂的功率支撑，实现了正常运行保留部分功率，又能主动参与电网频率调节。同时利用不同的给定转速值，实现备用功率的量化输出控制，以适应电力行业的数字化转型要求。仿真比较结果表明，具有转速差补偿环的控制策略在电网一次调频特性上明显优于综合惯量控制，提升了调频能力，能够有效降低大规模风电机组并网给电力系统频率稳定造成的影响。

英文摘要:

According to the characteristics of double fed induction generator (DFIG), starting from the rotor kinetic energy, the relationship between the rotating kinetic energy and load shedding power of the wind turbine is coordinated by controlling the load shedding operation mode of DFIG, the release process of rotor energy is controlled, and the rotating kinetic energy of the rotor is fully utilized, which can improve the capacity of frequency modulation in wind turbine grid. On the basis of integrated inertia control, this paper proposes that the rotor kinetic energy can be better released by adding a D-value of rotor speed compensation loop control module for the first time, so that DFIG can further make full use of the rotational kinetic energy stored in the rotor to provide short-term power support for the power grid, realize the normal operation, reserve part of the power, as well as taking part in the frequency regulation in the power grid actively. Meanwhile, different given speed values are used to realize the quantitative output control of backup power, so as to meet the digital transformation requirements of the power industry. The simulation results show that the control strategy with D-value of rotor speed compensation loop is obviously superior to the integrated inertia control in the primary frequency regulation characteristics of the power grid, which improves the frequency regulation ability, and can effectively reduce the impact of large-scale wind turbine grid-connection on the frequency stability of the power system. Keywords: DFIG, rotor rotation energy, D-value of rotor speed compensation, quantitative output of backup power, digital transformation

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