改进型PID风电场功率控制系统的设计  

Design of the wind farm power controller based on the improved PID

作　　者：赵巧红[1,2] 熊弦[1,2] 施星宇 

机构地区：[1]湘潭电机股份有限公司海上风力发电技术与检测国家重点实验室,湖南湘潭411102 [2]湘电风能有限公司,湖南湘潭411102 [3]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《湖南科技大学学报（自然科学版）》2015年第3期83-87,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家重点基础研究发展计划("973"计划)项目(85-2014-150)

摘　　要：现有风电场功率控制系统存在响应速度慢与控制误差大的缺点,提出一种改进型PID算法用于风电场功率控制,从现有实际运行的风电场SCADA系统中采集大量数据,利用辨识工具做模型辨识,根据最小二乘解算法得出传递函数,在Matlab中构建试验模型,采用比例、微分先行控制,积分后行,得出理想性能PID控制器.将仿真参数实际应用到风电场功率控制系统中.结果表明,该系统响应速度快,控制精度高,具有较强实际应用价值.In order to solve the disadvantages of slow response and large control error about wind farm power control system,an improved PID algorithm wind farm power control system was proposed. Firstly,a large amount of data from the actual operation of wind farm SCADA system was collected,identification tool was used to do the model identification,the transfer function was obtained based on the least squares solution algorithm.Secondly,The Matlab test model was builted,ideal performance of PID controller was concluded by using the proportional and differential advanced and integral behind control. Finally,the simulation parameters were used in the practical wind farm power control system. Results shows the actual application value is larger and it has fast response speed and high control precision.

关 键 词：功率控制 PID 模型辨识 SCADA 最小二乘解 

分 类 号：TM73[电气工程—电力系统及自动化]