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水电站闸门启闭机吊重入槽干涉算法与控制研究
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作者 方子帆 黄瑞鸿 +3 位作者 舒承宇 侯春尧 张李鸣 周益 《中国工程机械学报》 北大核心 2024年第6期816-821,共6页
为解决水电站闸门启闭机作业过程吊重入槽干涉的问题,基于吊重空间三维状态反馈,对吊重底部与门槽几何空间进行干涉判断,并控制起升机构下降速度,实现吊重安全入槽。构建出由吊重横滚角和俯仰角为模糊变量的模糊控制算法,实时调整起升... 为解决水电站闸门启闭机作业过程吊重入槽干涉的问题,基于吊重空间三维状态反馈,对吊重底部与门槽几何空间进行干涉判断,并控制起升机构下降速度,实现吊重安全入槽。构建出由吊重横滚角和俯仰角为模糊变量的模糊控制算法,实时调整起升机构的下降速度。联合闸门启闭机小车消摆控制算法,构建吊重入槽干涉的模糊判断与控制组合算法。通过仿真与试验研究表明:吊重在外界干扰下可以安全入槽,保障了水电站闸门启闭机无人作业下安全运行。 展开更多
关键词 闸门启闭机 吊重入槽 干涉模糊判断 电机模糊控制 水电站
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Fuzzy-second order sliding mode control optimized by genetic algorithm applied in direct torque control of dual star induction motor 被引量:1
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作者 Ghoulemallah BOUKHALFA Sebti BELKACEM +1 位作者 Abdesselem CHIKHI Moufid BOUHENTALA 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第12期3974-3985,共12页
The direct torque control of the dual star induction motor(DTC-DSIM) using conventional PI controllers is characterized by unsatisfactory performance, such as high ripples of torque and flux, and sensitivity to parame... The direct torque control of the dual star induction motor(DTC-DSIM) using conventional PI controllers is characterized by unsatisfactory performance, such as high ripples of torque and flux, and sensitivity to parametric variations. Among the most evoked control strategies adopted in this field to overcome these drawbacks presented in classical drive, it is worth mentioning the use of the second order sliding mode control(SOSMC) based on the super twisting algorithm(STA) combined with the fuzzy logic control(FSOSMC). In order to realize the optimal control performance, the FSOSMC parameters are adjusted using an optimization algorithm based on the genetic algorithm(GA). The performances of the envisaged control scheme, called G-FSOSMC, are investigated against G-SOSMC, G-PI and BBO-FSOSMC algorithms. The proposed controller scheme is efficient in reducing the torque and flux ripples, and successfully suppresses chattering. The effects of parametric uncertainties do not affect system performance. 展开更多
关键词 double star induction machine direct torque control fuzzy second order sliding mode control genetic algorithm biogeography based optimization algorithm
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