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为了稳定准确控制风帆转角位置,根据所设计的风帆驱动控制液压系统原理,提出风帆转角/速度复合控制方案。利用AMESim-MATLAB/Simulink软件建立风帆转角/速度复合控制联合仿真模型,并进行了联合仿真及实验研究。结果表明:采用复合控制可以克服常规控制中出现的压力波动及启停时的液压冲击;在不同转角速度及不同风力负载条件下,风帆均能按照规划的速度及位移进行转动,体现了复合控制的有效性和可靠性,可以为风帆助航船的风帆控制提供技术支持。 相似文献
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大摆杆是活动发射平台重要的组成部分,当摆杆快速摆开时,如果发生急停情况,将会对大摆杆液压缸及其管路、大摆杆结构及安装的连接器产生较大的冲击载荷.基于ADAMS和AMESim联合仿真的方法对活动发射平台大摆杆的运动过程进行仿真,主要分析急停工况下大摆杆上不同位置的角速度和角加速度,为大摆杆的设计和试验提供指导. 相似文献
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Real-time (RT) simulator is a powerful tool for analyzing operational and control algorithms in electric power systems engineering. For understanding the dynamic and transient behavior of a power systems, significant RT computation capabilities are essential. A single unit of RT simulator has limited simulation capabilities. The most common way of augmenting simulation capability is using a bank of locally connected RT simulators. However, creating a large-sized bank of RT simulators involves significant financial investments and hence may not be feasible at all research facilities. Power and energy systems research facilities that use RT simulators are at diverse physical locations. In addition to RT simulators, research facilities around the world house an array of facilities with unique power, energy, and control systems for innovative research. To leverage these unique research facilities, geographically distributed RT simulation based on Wide Area Network (WAN) is required. Typical RT simulators perform simulations with time-steps in the order of milliseconds to microseconds, whereas data latency for communication on WAN may be as high as a few hundred milliseconds. Such communication latency between RT simulators may lead to inaccuracies and instabilities in geographically distributed RT simulations. In this paper, the effect of communication latency on geographically distributed RT simulation is discussed and analyzed. In order to reduce the effect of the communication latency, a Real-Time Predictor (RTP), based on linear curve fitting is developed and integrated into the distributed RT simulation environment. Two geographically distributed digital RT simulators are used to perform dynamic simulations of an electric power system with a fixed communication latency and the predictor. Empirical results demonstrate the effects of communication latency on the simulation and the performance of the RTP to improve the accuracy of simulations. 相似文献
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将磁流变技术应用于火炮反后坐装置是目前正在发展的一种降低火炮后坐力的新技术,优化火炮反后坐装置控制,达到实时调节阻力。针对某型号火炮,在建立动力学模型和电磁模型的基础上设计了磁流变反后坐系统。为实现理想的后坐控制规律,提出了PID和模糊控制算法。利用ADAMS和MATLAB进行联合仿真,仿真结果表明,在后坐行程范围内,最大后坐阻力分别为3.71×105N,3.53×105N,相比传统火炮减小了13%和17%,并且模糊控制的后坐阻力曲线具有良好的"平台效应",实现了控制目标,表明磁流变阻尼器良好的可控性和应用于火炮后坐系统中的可行性。 相似文献
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Artificial bee colony (ABC) algorithm has several characteristics that make it more attractive than other bio-inspired methods. Particularly, it is simple, it uses fewer control parameters and its convergence is independent of the initial conditions. In this paper, a novel artificial bee colony based maximum power point tracking algorithm (MPPT) is proposed. The developed algorithm, does not allow only overcoming the common drawback of the conventional MPPT methods, but it gives a simple and a robust MPPT scheme. A co-simulation methodology, combining Matlab/Simulink™ and Cadence/Pspice™, is used to verify the effectiveness of the proposed method and compare its performance, under dynamic weather conditions, with that of the Particle Swarm Optimization (PSO) based MPPT algorithm. Moreover, a laboratory setup has been realized and used to experimentally validate the proposed ABC-based MPPT algorithm. Simulation and experimental results have shown the satisfactory performance of the proposed approach. 相似文献
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在虚拟样机软件下建立目标车型的15自由度的多刚体动力学整车模型,MATLAB/Simulink软件下建立目标车型理想状态下的参考模型一线性二自由度模型。通过联合仿真,以两模型中车辆的质心侧偏角和横摆角速度作为比较参数,分析目标车型稳定性状态。可得出目标车型在什么工况下进入临界稳定状态,为车辆结构参数合理性设计、车辆稳定性控制系统的开发提供理论基础。 相似文献
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以多体动力学仿真软件SIMPACK为平台,建立昌河某微型轿车的整车模型,采用模糊控制策略,在联合仿真模块SIMAT中对整车进行了随机路面输入和脉冲输入仿真试验。结果表明,与被动悬架相比,联合仿真环境下,模糊控制的半主动悬架车辆可以有效衰减车体振动,改善整车的平顺性。 相似文献
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Embedded architecture description language 总被引:1,自引:0,他引:1