风力发电机组负荷功率多目标平滑控制仿真  

Simulation of Multi-Objective Smooth Control for Load Power of Wind Turbine Generator System

作　　者：周昊 迟铭书 ZHOU Hao;CHI Ming-shu(Institute of Electrical and Mechanical Engineering,University of Architecture and Technology,Changchun Jilin 130114,China;School of Municipal and Environmental Engineering,Jilin Jianzhu University,Changchun Jilin 130118,China)

机构地区：[1]吉林建筑科技学院电气与机械工程学院,吉林长春130000 [2]吉林建筑大学市政与环境工程学院,吉林长春130000

出　　处：《计算机仿真》2024年第9期79-83,共5页Computer Simulation

摘　　要：随着风电技术的快速发展,风力发电机组数量的不断增多,风电并网的规模逐渐扩大,对风力发电负荷功率稳定性的需求也日益提升。为了解决当前风电负荷功率波动较大的问题,提出了一种基于多目标优化的负荷功率平滑控制方法。方法首先采用电池储能系统对波动功率进行补偿,通过设置介入门槛降低介入频率,通过极限学习机算法计算平滑控制的权重;然后通过对并网逆变器控制策略进行了优化,提升了并网过程的平稳度;最后加入飞轮储能系统,吸收多余动能并在功率缺失时补偿电能,从而在达到平滑控制效果的同时降低了电池储能系统的容量,降低了成本。基于真实数据的仿真结果表明,所提方法使功率波动降低了6.42%,有效的提高了负荷功率平滑控制的效果,提升了风力发电机组运行的稳定性,降低了功率波动对电网带来的负面影响。With the rapid development of wind power technology and the continuous increase in the number of wind turbines,the scale of wind power grid connection is gradually expanding,and the demand for wind power load power stability is also increasing.In order to solve the problem of significant fluctuations in wind power load power,this paper proposes a multi-objective optimization based load power smoothing control method.Firstly,the battery energy storage system was used to compensate the fluctuating power,the intervention frequency was reduced by setting the intervention threshold,and the weight of smooth control was calculated by the extreme learning machine algorithm;Then the control strategy of Grid-tie inverter was optimized to improve the stability of grid connected process;Finally,the Flywheel energy storage system was added to absorb the excess kinetic energy and compensate the electric energy when the power is lost,so that the capacity of the battery energy storage system was reduced and the cost was reduced while achieving the smooth control effect.The simulation experimental results based on real data show that the proposed method reduces power fluctuations by 6.42%,effectively improves the effect of load power smoothing control,improves the stability of wind turbine operation,and reduces the negative impact of power fluctuations on the power grid.

关 键 词：风力发电 平滑控制 电池储能系统 极限学习机 

分 类 号：TM614[电气工程—电力系统及自动化]