ac motor drives造句

• Introduces an optimal model control method based on vector control strategy for ac motor drive into ac-speed adjustable system
  在异步电动机矢量变换控制的基础上，引入了最优模式控制策略。
• The theory analyzes is verified by simuliation results . then, the control of voltage space vector method is explored based on instantaneous reactive power and ac motor drive theory
  其次，论文对滞环电流控制方法进行了分析，指出了滞环电流控制所存在的缺点以及局限性，仿真验证了理论分析结果。
• Speed sensor has the limitation of high cost, taking up more space, low reliability and high dependency of working condition . speed-- sensorless frequency modulation system avoids those defects and can meet the need of high performance of ac motor driving which is a stress field
  无速度传感器变频调速系统既避免了速度传感器带来的成本增加、体积增大、可靠性降低、易受工作环境影响等缺陷，又能够满足高性能交流传动的需要，是运动控制发展的一个重要方向。
• This paper introduces the outline of ac motor drive control and the theories of modern ac motor drive technologies, such as vvvf, dtc and foc . this paper analyses both the disadvantages of a speed control system with speed sensors and the advantages of a speed control system without speed sensors . this paper also presents the current situation of the speed-sensorless technology, especially the applications of this technology in foc systems
  本文综述了交流电机调速的概况，以及变频调速(vvvf)、磁场定向控制(foc)、直接扭矩控制(dtc)等现代交流电机调速理论，分析了有速度传感器交流电机调速系统存在的弊端，以及无速度传感器调速系统的优越性，并对无速度传感器交流电机调速技术的现状进行了分析介绍，特别介绍了该技术在矢量控制系统中的应用。
• This paper introduces the outline of ac motor drive control and the theories of modern ac motor drive technologies, such as vvvf, dtc and foc . this paper analyses both the disadvantages of a speed control system with speed sensors and the advantages of a speed control system without speed sensors . this paper also presents the current situation of the speed-sensorless technology, especially the applications of this technology in foc systems
  本文综述了交流电机调速的概况，以及变频调速(vvvf)、磁场定向控制(foc)、直接扭矩控制(dtc)等现代交流电机调速理论，分析了有速度传感器交流电机调速系统存在的弊端，以及无速度传感器调速系统的优越性，并对无速度传感器交流电机调速技术的现状进行了分析介绍，特别介绍了该技术在矢量控制系统中的应用。
• A novel resonant pole zvt three-phase pwm inverter circuit for three-phase ac motor driving is presented . the proposed circuit has the feature of being more flexible with three inverter arms in zvt process . using only one resonant inductance, the inverter can not only reduce the power loss of inductance but also avoid possibility of unbalance in motor's three stator windings
  提出了一种针对三相交流电机驱动的新型谐振极零电压过渡三相pwm逆变器电路，该电路中三个逆变桥臂的零电压过渡更具有灵活性，仅使用一个谐振电感，既减少了电感损耗又防止了电机三相定子绕组可能存在的不平衡问题，并且谐振电感中残余能量能够回馈给电源；新型逆变器的辅助开关均工作在零电流开关条件下，并且控制逻辑简单。
• This method first builds up an optimal model which have a good performance, then according to the error and the derivation of the error between the output of the optimal model and the output of ac motor drive, design model controller by lyapunov theory
  该方法首先建立性能指标最优化模型，然后利用李雅普诺夫稳定性理论设计出模式控制器。根据最优模型输出与实际电动机输出的偏差及偏差导数，在模式控制器的作用下，使实际电动机的输出跟随最优模型的输出，直至偏差为零。
• He specialises in power electronic converters for variable speed windmills and medium voltage drives designs for ac motor drives from, high speed micro turbine and variable speed gen-sets, innovative circuits for ups applications, traction applications in trains, trolley-buses and trams, battery driven vehicles, automotive drives and fuel cell applications
  施雷伯先生的专长是研究变速风力发电机的电力电子变换器和用于交流电动机驱动的中压电力电子设计，从高速微型燃气轮机和变速机组，用于ups应用的新型电路，欧列车中的牵引应用，无轨和有轨电车，电池驱动汽车，汽车驱动和燃料电池。
• The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems
  艾默生网络能源产品涉及通信电源、印刷板板装电源、客户定制电源、ups、机房专用精密空调、户外一体化通信机柜、自动切换开关、动力网络保护产品、蓄电池、低压配电和精密配电柜、动力设备及环境监控系统、电力操作电源、交流变频调速器等领域。