动态稳定性

• Analyzed kinematics and dynamics of the obstacle negotiations for an articulated mobile robot a restriction condition to guarantee dynamic stability when it gets over the obstacles
  摘要通过对关节式移动机器人越障过程运动学和动力学分析，得出控制移动机器人越障时保证动态稳定性的约束条件。
• Experiments show that the restriction improves the negotiation stability and velocity , decrease actions of each joint , and increase performances of the obstacle negotiation
  实验表明，加入动态稳定性约束后，提高了关节式移动机器人越障的稳定性和越障速度，减少了各关节的动作，改善了越障性能。
• The traditional excitation control theory has not met the need of the more complicated electricity power system already , and nolinear excitation control theory offers a available way in solving this question
  由于传统的励磁控制方式存在着动态稳定性不高问题，非线性励磁控制为解决这一问题提供了有效解决方法。
• The augment of excitation setting " s control performance is fairly important to improve the static , transient and dynamic stability of power system , and enhance the setting " s utilization rating of the hydraulic turbine generator unit
  提高励磁装置的控制性能，对于改善电力系统静态、暂态及动态稳定性相当重要，并且可以提高水轮发电机组的设备利用率。
• Finally , a comparison experiment is performed between the speed regulating system this paper designed and the speed regulating system of nbc - 350 welding power source . the result indicates that the system this paper designed has good dynamic stability and control accuracy
  最后,对本文设计的送丝机调速系统与nbc - 350焊机的调速系统进行了对比试验,试验证明本文设计的调速控制系统具有良好的动态稳定性和良好的控制精度。
• The second , we adopt the mean - squared deviation of speed as the index of dynamic stability and design an appraisal software of the performance of wire feeder . the software can not only appraise the performance of wire feeder but direct the design of speed regulating system
  其次,本文用采样速度均方差值作为衡量送丝系统的动态稳定性指标,采用labview软件设计了送丝机性能评估软件,利用该软件不但可以对送丝调速系统做出评价,还可以指导调速系统的设计。
• The simulations show that the vsc strategy is robust against external disturbances and model perturbation as long as the control parameters are selected properly . in comparison with the pid controllers , the vsc also enables a satisfactory dynamic performance to be achieved in terms of variation in the depth of cut
  结果表明,当趋近律参数选择合适时,采用变结构控制的主轴系统在外扰动作用下具有良好性能,其动态稳定性及对系统自身特性变化的适应能力明显强于pid控制器。
• After comparing pss , pid and linear optimal control theory , the linear optimal controller of upfc with state feedback is proposed which is based on modern control theory . it ' s effect of damping the low frequency oscillation and improving the stability of power system is ideal . finally the sub - optimal control theory is presented according to practicability
  通过分析比较电力系统稳定器（ powersystemstabilizer -简称pss ） 、 pid及线性最优控制的优缺点及使用范围，从而应用现代控制理论中的最优线性控制理论，基于upfc的动态模型，构造了upfc的状态反馈线性最优控制器，有效地抑制了系统的低频振荡，提高了电力系统的动态稳定性。
• In the paper , present condition and developing tendency of forklifts are presented , design plans of a new developed electrical - driven universal - way forklifts - cpd2hc ~ are introduced , dimensions of its changing direction trapezoid are designed by means of optimized method , static and dynamical stabilities of the forklifts are studied and tested through build model , given conclusions from above researches are of great important to raise design quality and working performance of this kind of forklifts , which lay the foundations of developing more practical , durable and advanced productions
  论文阐述了叉车的现状和发展趋势，介绍了新研制的cpd2hc型电动万向叉车的设计方案，并利用优化的方法对转向梯形臂的几何尺寸进行了优化设计，论文还研究和验证了电动万向叉车的静态稳定性和动态稳定性，所得结论对于提高这种型式叉车的设计质量和工作性能有重要的意义，为研制更实用、更耐用、性能更先进的产品奠定了基础。
• So choose parameter of damping device with reduce energy storage to improve cvt become and respond effective way of characteristic wink rational , this increases the capacity of sending for raising the dynamic stability of the supervoltage power transmission and transformation system , guarantee power system safe and reliable to run and have important technology economic meanings
  因此，合理地选择阻尼器的参数以降低储能是改善cvt瞬变响应特性的有效途径，这对于提高超高压输变电系统的动态稳定性，增大输送容量，保证电力系统安全可靠运行具有重要的技术经济意义。