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本文简要介绍了五轴联动加工技术在 DMU 100T 机床的实现,及其在闭式叶轮整体数控加工、叶片加工中的应用。 相似文献
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结合贵州电网安稳控制系统的实际情况,介绍了CSSM-2000电网稳定控制集中管理系统的构成、配置、主要实现方式及完成的主要功能,给以后实现在线实时决策方式起到一定的借鉴作用。 相似文献
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介绍一种在Windows2000 Advanced Server平台上,将微软自带的MSCS和Oracle公司的Failsafe结合起来,对Failsafe实现群集的几种方式及MSCS、Failsafe的具体配置,实现了一种高性能,高负载平衡的数据库双机热备方案,即高可用性解决方案HA。 相似文献
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阐述ESB-2000i数字载波机和SWT-2000F6的组成、功能、软硬件配置、运行方式,实现两个设备技术的灵活应用,满足现场需要。 相似文献
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介绍了基于Web技术及报文传送方式访问OPEN-2000调度自动化系统EMS图形和数据的实现方法,并对实际应用中两种方式的优缺点进行了分析和改进. 相似文献
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介绍了基于Web技术及报文传送方式访问OPEN-2000调度自动化系统EMS图形和数据的实现方法,并对实际应用中两种方式的优缺点进行了分析 和改进。 相似文献
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2000年教育部启动的中小学“校校通”工程的核心和根本目的在于利用多种方式实现教学资源的流动和共享,深层次推动教与学方式的变革。 相似文献
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旋转空间矢量算法在电压型SMES控制中的应用 总被引:2,自引:0,他引:2
研究了将旋转空间矢量算法应用于超导磁储能(SMES)装置的可行性,比较了分析了旋转空间矢量控制和传统矢量控制这两种控制算法在系统节点电压幅值或相位发生突变时的控制效果,讨论了旋转空间矢量算法在电压不对称条件下的适用性,旋转空间矢量的另一优点是可以减小计算量,为空间矢量控制,无差拍控制等复杂算法控制提供了条件,电磁暂态仿真证明了该原理和方法的正确性。 相似文献
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针对汽轮发电机励磁与SM ES线性最优协调控制设计时出现的发电机端电压静态偏移问题,采用了积分线性最优控制设计方法。仿真表明:该控制规律能够很好地兼顾系统各状态量的动、静态特性,消除了发电机端电压的静态偏移,提高了系统的稳定运行能力。 相似文献
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Improving the Efficiency by Controlling the Switching Frequency for Secondary‐Side Converter of an Inductive Power Transfer System 下载免费PDF全文
The switching frequency affects the efficiency of a secondary‐side converter that is configured with a diode bridge rectifier connected to a DC‐DC converter in an inductive power transfer (IPT) system. The efficiency characteristics for the switching frequency of a secondary‐side converter were analyzed theoretically in order to establish a highly efficient control scheme the controls the switching frequency of the converter. A control scheme is proposed in which the switching frequency of the secondary‐side converter is controlled according to the efficiency characteristics. The validity of the proposed control scheme was clarified through experiments. The results showed that the proposed control scheme improved the efficiency of the IPT system by 3.4 points compared to the conventional control scheme. 相似文献
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Lakshmi Dutta Dushmanta K. Das 《International Journal of Adaptive Control and Signal Processing》2021,35(6):991-1016
In this work, an adaptive feedback linearized model predictive control (AFLMPC) scheme is proposed to compensate system uncertainty for a class of nonlinear multi-input multi-output system. Initially, a feedback linearization technique is used to transform the nonlinear dynamics into an exact linear model, thereafter, a model predictive control scheme is designed to obtain the desired tracking performance. A suitable constraint mapping algorithm has been developed to map input constraints to the new virtual input of the proposed control scheme. The proposed control scheme utilizes multiple estimation model and the concept of second-level adaptation technique Pandey et al. (2014) to handle the parametric uncertainty in real-time. Hence, the adaptive term in the control scheme is used to counteract the effect of model uncertainties and parameter adaptation errors. The effectiveness of the proposed AFLMPC control algorithm has been verified successfully in simulation as well as the experimental setup of the TRMS model. The unavailable states of the nonlinear system have been estimated using an extended Kalman filter based state observer. The performance of the proposed control algorithm has been compared with other existing nonlinear control techniques in simulation and experimental validation. 相似文献
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介绍了线材水冷在线控制的功能,分析了线材水冷却过程中硬件和软件的要求及实现方案,给出了穿水冷却工艺控制系统的结构示意图,并通过构建基于PLC S7-300的自动控制系统实现了模糊PID控制策略,仿真结果表明:采用模糊PID控制减小了超调,有较好的抗干扰能力;利用PLC具体化方案能方便地实现控制策略,优化水冷过程。 相似文献