风电机组惯量支撑与一次调频综合控制策略

doi:10.16180/j.cnki.issn1007-7820.2023.05.002

Abstract

Abstract:

In response to the problem of reduced system inertia and insufficient frequency regulation capacity due to large-scale wind power connection to the grid, an integrated control strategy scheme for wind turbine inertia support and primary frequency regulation is proposed. In this scheme, the load reduction control of wind turbine is adjusted based on the characteristics of wind turbine slurry distance angle, and the reserve capacity required for wind turbine frequency modulation is reserved, which further solves the combination problem between the frequency change of the power grid and the virtual moment of inertia in the load reduction mode. In addition, the wind turbine speed protection is considered to set the static adjustment coefficient, and combined with the inertia support control, to achieve the wind turbine integrated frequency control strategy. The co-simulation model including wind farm is built in MATLAB/Simulink platform. The results show that the wind turbine can quickly provide virtual rotational inertia support to the grid, reduce the rate of change of the initial grid frequency perturbation, and regulate the output power according to the adjusted static regulation differential coefficients to improve the frequency stability of the wind power connected to the grid, which verifies the rationality of the proposed control strategy.

Key words: primary frequency regulation, inertia support, load shedding standby, integrated control strategy, wind power generation, maximum power tracking curve, frequency stability, pitch angle, adjustment coefficient

CLC Number:

TP271+.4

ZHU Jiawen,CHEN Zhuo,LIU Renzhi,LIU Bolin,CHEN Xiangping. Integrated Control Strategy of Wind Turbine Inertia Support and Primary Frequency Regulation[J].Electronic Science and Technology, 2023, 36(5): 9-15.

Figures/Tables 10

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Integrated Control Strategy of Wind Turbine Inertia Support and Primary Frequency Regulation

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