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1.江苏金风科技有限公司,江苏省盐城市 224100
2.南京理工大学自动化学院,江苏省南京市 210094
3.国网江苏省电力有限公司,江苏省南京市 211106
周连俊(1988—),男,博士,主要研究方向:风力发电系统的运行与优化。E-mail:lspj324@163.com
殷明慧(1978—),男,博士,教授,博士生导师,主要研究方向:风力发电系统控制与友好并网、风电机组动模实验技术。E-mail:ymhui@vip.163.com
杨炯明(1975—),男,博士,高级工程师,主要研究方向:风力发电系统检测与试验。E-mail:yangjiongming@goldwind.com.cn
邹云(1962—),男,通信作者,博士,教授,博士生导师,主要研究方向:复杂系统、应急控制、风电系统的数值仿真与控制。E-mail:zouyun@vip.163.com
收稿日期:2020-06-03,
修回日期:2020-09-27,
网络出版日期:2020-12-08,
纸质出版日期:2021-01-10
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周连俊,殷明慧,杨炯明等.考虑变化湍流风速条件的风电机组改进自适应转矩控制[J].电力系统自动化,2021,45(1):184-191.
ZHOU Lianjun,YIN Minghui,YANG Jiongming,et al.Improved Adaptive Torque Control for Wind Turbine Considering Varying Turbulence Conditions[J].Automation of Electric Power Systems,2021,45(1):184-191.
周连俊,殷明慧,杨炯明等.考虑变化湍流风速条件的风电机组改进自适应转矩控制[J].电力系统自动化,2021,45(1):184-191. DOI: 10.7500/AEPS20200603001.
ZHOU Lianjun,YIN Minghui,YANG Jiongming,et al.Improved Adaptive Torque Control for Wind Turbine Considering Varying Turbulence Conditions[J].Automation of Electric Power Systems,2021,45(1):184-191. DOI: 10.7500/AEPS20200603001.
对于实现风电机组最大功率点跟踪的最优转矩控制,通过适当减小转矩增益可以有效提升风能捕获效率。但现有研究发现
变化的湍流风速条件不仅会改变最佳转矩增益系数,还会影响用于寻优该值的自适应算法的收敛性能,进而导致难以提高甚至降低风能捕获效率的问题。为此,通过分析风速条件变化影响自适应算法的机理,发现了导致该算法搜索方向持续出错而恶化风能捕获效率的风速条件渐变良好场景。在此基础上,提出了考虑变化湍流风速条件的改进自适应转矩控制,通过引入动态风能捕获损失量指标识别出此类场景,结合中断与重启搜索机制,防止自适应算法搜索发散,从而提升风电机组发电效率。最后,基于风电机组传动链模拟实验平台,分析验证所提方法的有效性。
The wind energy capture efficiency can be effectively improved by properly decreasing the torque gain for the optimal torque control of the maximum power point tracking of wind turbines. However
existing research has pointed out that varying turbulence conditions can not only change the coefficients of optimal torque gain but also affect the convergence performance of the adaptive algorithm for searching the optimal value. The consequent unreasonable torque gain makes it difficult to improve or even reduces the wind energy capture efficiency. Therefore
through the mechanism analysis of the impact of varying turbulence conditions on adaptive algorithm
a well-graded scene of wind conditions is found
which can lead the algorithm search direction continuous incorrect and make wind energy capture efficiency worse. On this basis
an improved adaptive torque control considering varying turbulence conditions is proposed to identify such scenes by introducing the dynamic wind energy capture loss index. By combining the interrupt and restart search mechanism
the search divergence of adaptive algorithm can be prevented
so as to improve the efficiency of wind turbine power generation. Finally
the experiments based on wind turbine drive chain test bench are presented to verify the effectiveness of the proposed method.
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