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1.东南大学电气工程学院,江苏省南京市 210096
2.国网山东省电力公司电力科学研究院,山东省济南市 250003
Received:09 August 2023,
Revised:2023-12-06,
Published Online:12 June 2024,
Published:10 August 2024
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潘沈恺,高丙团,毛永恒等.考虑机组疲劳载荷的风电场快速有功功率分配方法[J].电力系统自动化,2024,48(15):112-121.
PAN Shenkai,GAO Bingtuan,MAO Yongheng,et al.Fast Active Power Distribution Method for Wind Farms Considering Fatigue Loads of Wind Turbines[J].Automation of Electric Power Systems,2024,48(15):112-121.
潘沈恺,高丙团,毛永恒等.考虑机组疲劳载荷的风电场快速有功功率分配方法[J].电力系统自动化,2024,48(15):112-121. DOI: 10.7500/AEPS20230809002.
PAN Shenkai,GAO Bingtuan,MAO Yongheng,et al.Fast Active Power Distribution Method for Wind Farms Considering Fatigue Loads of Wind Turbines[J].Automation of Electric Power Systems,2024,48(15):112-121. DOI: 10.7500/AEPS20230809002.
为抑制风电场参与系统调频过程中风电机组的疲劳载荷,提出一种风电机组与风电场相协同的快速有功功率分配方法。首先,推导了风电机组轴系和塔架2个自由度的疲劳载荷表达式,建立起风电机组疲劳载荷与有功出力变化之间的关系。其次,以风电场总疲劳载荷及其站内分布最小为优化目标,以站内机组调整功率之和与场站调频功率需求一致为约束,在保证风电场调频性能的同时降低风电机组的疲劳载荷。此外,采用风电机组控制器滚动计算自身的疲劳敏感度系数,采用风电场控制器调用商业求解器在线求解优化策略,确保调频过程中有功控制的实时性。最后,搭建了含20台5 MW双馈风电机组的算例系统,验证分析了所提策略的有效性。
To suppress the fatigue loads of wind turbines caused by wind farms participating in the frequency regulation process
this paper proposes a fast active power distribution method based on the cooperation of wind turbines and the wind farm. Firstly
the fatigue load expression formulas in two degrees of freedom corresponding to the shaft and the tower of the wind turbine are deduced
and the relationship between the fatigue load and the active power output change of the wind turbine is established. Secondly
by taking the minimization of the total fatigue loads and their distribution in the wind farm as the optimization objectives
and considering the constraint that the sum of the adjusted active power of each wind turbine is the same as the required active power for frequency regulation of the wind farm
the fatigue loads of the wind farm can be reduced while guaranteeing similar characteristics of frequency regulation. Moreover
by continuously calculating its own fatigue sensitivity coefficients at each wind turbine controller
the wind farm controller solves the optimal strategies online by using the commercial solver
to guarantee the real-time active power control during frequency regulation. Finally
a case system consisting of 20 doubly-fed induction generator based wind turbines with 5 MW capacity is performed
and the effectiveness of the proposed method is analyzed and verified.
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