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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
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
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
Date Available2015-04-08
Application NumberCN201110456072.3
Open (Notice) NumberCN103184972B
Contribution Rank1
Document Type专利
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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