基于PI参数优化的风电系统变流器的研究  

The research of wind power generation converter based on the parameters optimization of PI controller

作　　者：党存禄[1] 张磊[1,2] 宫有民[1] 周明星[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [2]甘肃省工业过程先进控制重点实验室,甘肃兰州730050

出　　处：《微型机与应用》2011年第15期71-73,77,共4页Microcomputer & Its Applications

摘　　要：通过风电系统变流器的模型,提出在机侧和网侧采用PWM控制。机侧采用速度外环和电流内环的双闭环控制策略;网侧采用直流电压外环和电流内环的双闭环控制策略。对PI控制器的参数进行整定,通过ITAE寻找最优参数,使得系统实现优化控制及单位功率因数传递电能。仿真和实验表明,整定的PI控制器参数可使系统达到很好的控制效果。Based on the wind power generation system＇s converter model,this article adopts the PWM control on both the generator side and the grid-side, and the use of double loop control on the generator side＇s speed outer loop and the current inner loop; but adopts the strategy of double loop control of the direct current vohage＇s outer-loop and the electric current＇s inner-loop on the grid-side. Through the setting of PI controller＇s parameters, this article adopts the use of ITAE to look for the optimal parameters, so that the system can realize good optimization control thus to realize the transfer of electricity through high power factor. The results of simulations and experimental show that the setting of PI controller＇s parameters can make the system reach good effect of control.

关 键 词：风力发电 PI控制器 最优控制 解耦控制 

分 类 号：TM46[电气工程—电器]