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电网技术  2011 

水轮机调速系统的H¥双回路鲁棒控制策略

, PP. 212-217

Keywords: 水轮机调速系统,水锤效应,H??双回路,弹性水体

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Abstract:

建立了考虑水电站引水系统水锤效应的弹性水体水轮机模型,并据此构建了水轮机调速系统模型。针对水轮机调速系统具有参数不确定性、存在干扰等特点,运用H¥鲁棒控制理论,提出了水轮机调速系统H¥双回路鲁棒控制策略,以水门开度偏差为补偿信号构建了内环反馈回路,以发电机转速偏差为补偿信号构建了外环反馈回路。仿真结果验证了该控制策略的有效性,而且其时域性能指标明显优于传统比例–微分–积分(proportionalintegralderivative,PID)调节器控制效果。

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