基于可用调频能量的风电机组综合虚拟惯性控制参数整定  

An Integrated Virtual Inertia Control Parameter Setting Method for Wind Turbine Based on Available Frequency Regulation Energy

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作  者:李可心 安军[1] 石岩[1] 周毅博 刘楚瑜 Li Kexin;An Jun;Shi Yan;Zhou Yibo;Liu Chuyu(Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology Ministry of Education Northeast Electric Power University,Jilin,132012,China;Northeast Branch of State Grid Corporation of China,Shenyang,110180,China)

机构地区:[1]现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林132012 [2]国家电网公司东北分部,沈阳110180

出  处:《电工技术学报》2025年第5期1382-1394,共13页Transactions of China Electrotechnical Society

基  金:国家自然科学基金重点资助项目(52337004)。

摘  要:准确评估并合理利用风电机组的调频能力是目前研究亟须解决的问题。为此,提出一种基于可用调频能量的风电机组综合虚拟惯性控制参数整定方法。首先,推导了风电机组机械能损失和可用转子动能与风速之间的数学模型,根据模型揭示了风速变化对二者的影响,实现了风电机组调频能力的有效评估;其次,建立了风电机组调频能量与控制参数的关系表达式,计及风电机组可用调频能量、系统的频率变化量和频率变化率,考虑不同场景下的调频优先等级,设计了模糊控制规则,并基于模糊控制规则采用模糊逻辑控制方法得到了综合控制效果最优时的控制参数整定值;最后,通过算例验证了所提方法的有效性。The additional integrated virtual inertia control of wind turbine is an important measure to improve the frequency stability of new type power system.It is of great significance to evaluate the frequency regulation capability of wind turbine under this control effectively and make full use of the frequency regulation capability by setting control parameters reasonably,hence,an integrated virtual inertia control parameter setting method for wind turbine based on available frequency regulation energy is proposed.Firstly,considering the mechanical energy loss,a mathematical model describing the relationship between available rotor kinetic energy and rotor speed is constructed from the perspective of energy,and the effect of wind speed on available rotor kinetic energy is discovered.Secondly,the available frequency regulation energy is converted into available frequency regulation power,so that the relationship between the available frequency regulation power and wind speed can be described intuitively.On this basis,in order to make full use of the available frequency regulation power,the relational expression between the frequency regulation power and the control parameters is established.Considering the frequency regulation requirements in different scenarios,the fuzzy control rules are designed,and the control parameter setting values are obtained by using the fuzzy logic control method when the comprehensive effect of the system frequency change rate and the lowest frequency is optimal.Finally,the proposed method is applied to a 3-machines 9-nodes system,and the effectiveness of the proposed method is verified by simulation.It is found that the maximum available frequency regulation power of wind turbine increases with the increase of wind speed.Under rated wind speed,the maximum available frequency regulation power of 2 MW wind turbine is 3%of rated power.In the simulation example,the proposed parameter setting method is compared with those without additional control,constant coefficient control and the paramete

关 键 词:风电机组 综合虚拟惯性控制 可用调频能量 参数整定 

分 类 号:TM614[电气工程—电力系统及自动化]

 

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