基于模糊卡尔曼滤波和改进滑模控制的风电场飞轮储能控制策略  

Control strategy of FESS in wind farms based on fuzzy Kalman filter and improved sliding mode control

作　　者：王世奇 刘广忱[1,2,3] 陈国伟 张建伟 姚强[4] 田桂珍[1,2,3] Wang Shiqi;Liu Guangchen;Chen Guowei;Zhang Jianwei;Yao Qiang;Tian Guizhen(Inner Mongolia University of Technology,Hohhot 010080,China;Engineering Research Center of Large Energy Storage Technolo gy,Ministry of Education,Hohhot 010080,China;Intelligent Energy Technology and Equipment Engineering Research Centre of Colleges and Universities in the Inner Mongolia Autonomous Region,Hohhot 010080,China;State Grid East inner Mongolia Electric Power Synthesis Energy Co.,Ltd.,Hohhot 010010,China)

机构地区：[1]内蒙古工业大学,内蒙古呼和浩特010080 [2]大规模储能技术教育部工程研究中心,内蒙古呼和浩特010080 [3]内蒙古自治区高等学校智慧能源技术与装备工程研究中心,内蒙古呼和浩特010080 [4]国网内蒙古东部电力综合能源服务有限公司,内蒙古呼和浩特010010

出　　处：《可再生能源》2024年第7期901-907,共7页Renewable Energy Resources

基　　金：国家自然科学基金项目(51867020);内蒙古自治区科技重大专项(2020ZD0014,2021ZD0040)。

摘　　要：在风电场并网点处配置一定容量的飞轮储能装置(FESS)可以有效平滑并网功率,提高风电场的电网友好性。为提高FESS的功率响应速度,增强对风电功率波动的平抑效果,同时避免在功率波动太大时储能过充/过放,文章提出了一种基于模糊卡尔曼滤波和改进滑模控制(SMC)的飞轮储能控制策略。根据FESS的实时转速和功率自适应调节卡尔曼增益,将滤波结果与风电场实际输出功率的差值作为滑模控制器的输入,实现对飞轮储能的功率控制。仿真结果表明,文章提出的控制策略具有较好的动态响应特性,可以有效平滑风电功率,使其满足并网要求,在平滑过程中保证飞轮转速在限定范围内,有利于延长FESS的使用寿命。Installing a certain capacity of flywheel energy storage system(FESS)at the grid connection of wind farms can effectively smooth the grid-connected power and improve the gridfriendliness of wind farms.To improve the power response speed of FESS and enhance the smoothing effect of wind power fluctuation while avoiding overcharge/overdischarge of FESS,this paper proposes a control strategy for FESS based on a fuzzy Kalman filter and the improved sliding mode control(SMC).The Kalman gain is adaptively adjusted according to the real-time speed and power of FESS.The difference between the filtering result and the wind farm output power is used as the input of the SMC to realize the power control of FESS.The simulation results show that the control strategy proposed in this paper has good dynamic response characteristics and the wind power can be effectively smoothed,thus meeting the requirements of grid connection.The flywheel speed is kept within the limit during the smoothing process,which extends the service life of FESS.

关 键 词：风电功率 飞轮储能 滑模变结构控制 卡尔曼滤波器 模糊控制 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]