重庆理工大学学报2024，Vol.38Issue(3)：295-303,9.DOI:10.3969/j.issn.1674-8425(z).2024.02.032
基于构网型控制策略的直驱型风力发电机简化模型研究
Simplified model of direct-drive wind turbine based on grid-forming control strategy
摘要
Abstract
Direct-drive wind power generation,as a common form of wind power generation,is expected to lead to a continuous decrease in the effective inertia of the receiving power grid as its capacity increases,exhibiting weak damping characteristics and increasing the operational risk of the power system.The use of grid control with active support capability in the flexible and direct grid connection process of direct-drive wind farms has gradually become the mainstream of research.However,due to its control technology and engineering applications being still in the research stage,it is necessary to first test them in simulation software.The grid connected system of grid structured direct-drive wind farm needs to consider the operation characteristics of a large number of wind turbines.The access of multiple units leads to a complex simulation operation environment,and the calculation force of hardware-in-the-loop simulation system is insufficient to meet the detailed simulation requirements of multiple units.To reduce computational pressure and find a more suitable simulation model for wind farm grid connection research,this paper simplifies the detailed model of direct-drive wind turbine units under grid control,and employs a controlled current source to replace the fan side model,further saving computer computing power.The model is compared from three aspects:input power,DC voltage,and AC voltage fluctuations.The detailed and simplified models from the perspectives of model response curve error and simulation time are evaluated.Our simulation results show the simplified model reflects the power output characteristics of the wind turbine grid side and has obvious advantages in saving simulation time.关键词
直驱风机/构网型控制/详细/简化模型/仿真耗时Key words
direct-drive wind turbine/grid-forming control/detailed/simplified model/simulation time分类
信息技术与安全科学引用本文复制引用
李琰,刘京波,郇政林,谭延博,顾天明,王新,王谱宇..基于构网型控制策略的直驱型风力发电机简化模型研究[J].重庆理工大学学报,2024,38(3):295-303,9.基金项目
国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司)科技项目(KJZ2023027) （华北电力科学研究院有限责任公司）
