A unified optimization control of wind farms considering wake effect for grid frequency support

IF 1.5 Q4 ENERGY & FUELS Wind Engineering Pub Date : 2023-03-29 DOI:10.1177/0309524X231163823
Cheng Zhong, Husai Wang, Zhifu Jiang, Dechi Tian
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引用次数: 1

Abstract

This paper proposed a unified active power optimization control of wind farms under wake effect. It takes the sum of the kinetic energy variation and pitch angle variation as the optimization objective and used the particle swarm algorithm to achieve the optimization results. The main feature of the proposed method is that it unifies the kinetic energy optimization under a low wind speed area, the pitch angle and kinetic energy trade-off optimization under a medium wind speed area, and the pitch angle optimization under a high wind speed area. Combined with the de-loaded power constraint, it can flexibly reach various optimal operating states of the wind farm. The simulation results show that the proposed method optimizes the rotor speed and pitch angle in different wind speed areas, and releases kinetic energy and/or increases the output power of the wind farm to provide frequency support by switching the operating states.
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考虑尾流效应的风电场电网频率支持统一优化控制
提出了一种考虑尾流效应的风电场统一有功优化控制方法。以动能变化量和俯仰角变化量之和为优化目标,利用粒子群算法实现优化结果。该方法的主要特点是将低风速区域下的动能优化、中风速区域下的俯仰角与动能权衡优化和高风速区域下的俯仰角优化统一起来。结合卸载功率约束,可灵活达到风电场的各种最佳运行状态。仿真结果表明,该方法在不同风速区域优化了转子转速和俯仰角,并通过切换运行状态释放动能和/或增加风电场输出功率提供频率支持。
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来源期刊
Wind Engineering
Wind Engineering ENERGY & FUELS-
CiteScore
4.00
自引率
13.30%
发文量
81
期刊介绍: Having been in continuous publication since 1977, Wind Engineering is the oldest and most authoritative English language journal devoted entirely to the technology of wind energy. Under the direction of a distinguished editor and editorial board, Wind Engineering appears bimonthly with fully refereed contributions from active figures in the field, book notices, and summaries of the more interesting papers from other sources. Papers are published in Wind Engineering on: the aerodynamics of rotors and blades; machine subsystems and components; design; test programmes; power generation and transmission; measuring and recording techniques; installations and applications; and economic, environmental and legal aspects.
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