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兆瓦级异步双馈风机转矩/桨距控制器参数自整定方法
Alternative TitleParameter self-turning method for torque/propeller pitch controller of megawatt asynchronous double-feed wind driven generator
杜劲松; 郭锐; 吴景辉; 苏浩
Department智能检测与装备研究室
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Country中国
Subtype发明授权
Status有权
Abstract本发明涉及兆瓦级异步双馈风机转矩/桨距控制器参数自整定方法,包括以下步骤:机组启动后,偏航系统首先工作到指定位置;此后进入自检程序;自检程序通过后将进入自由转动过程;当发电机转速达到切换速度后,变桨系统桨叶角全开发电机速度继续上升;当发电机转速达到并网速度后,转矩控制器控制发电机转速按照一定斜率上升;当发电机转速达到额定转速(额定功率),变流控制器保持发电机转矩恒定,变桨控制器控制发电机转速稳定在额定转速。桨距、转矩控制器由一个带积分分离算法的BP神经网络PID参数自整定控制器构成,控制器可以根据规则自动调整参数,并根据收敛规则通过在线训练使参数达到最优化,从而提高风机发电量并有效减小风机载荷。
Other AbstractThe invention relates to a parameter self-turning method for a torque/propeller pitch controller of a megawatt asynchronous double-feed wind driven generator. The method comprises the following steps: after a unit is started, a yaw system firstly works to an appointed position, subsequently enters into a self-check program and enters into a free rotation process after passing through the self-check program; when the rotation speed of a generator reaches a switching speed, the blade angle of a variable pitch system is completely opened, and the speed of the generator continuously increases; when the speed of the generator reaches a grid-connection speed, a torque controller controls the rotation speed of the generator to increase according to a certain slope; and when the rotation speed of the generator reaches a rated rotation speed (rated power), a variable current controller keeps the torque of the generator constant, and a variable pitch controller controls the rotation speed of the generator to be stabilized in the rated rotation speed. The propeller pitch and torque controller comprises a PID (Proportional-Integral-Derivative) parameter self-turning controller of a BP (Back Propagation) neural network with an integral separation algorithm, the controller can automatically adjust the parameters according to rules, and the parameters are optimized through on-line training according to convergence rules, so that the power generation amount of the wind driven generator is increased, and the load of the wind driven generator is effectively reduced.
PCT Attributes
Application Date2011-12-30
2013-07-03
Date Available2015-04-08
Application NumberCN201110456072.3
Open (Notice) NumberCN103184972B
Language中文
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/15983
Collection智能检测与装备研究室
Affiliation中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
杜劲松,郭锐,吴景辉,等. 兆瓦级异步双馈风机转矩/桨距控制器参数自整定方法[P]. 2013-07-03.
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