牵引逆变器为牵引电机提供三相变频、变压的交流电。
The traction inverter provides VVVF three-phase ac voltage for traction motors.
地铁主传动系统由牵引逆变器、微机控制驱动装置、牵引电动机等部件组成。
The devices of the main driver system in subway mainly consist of traction inverter, driver equipment with micro-computer control and traction motor.
交流传动车辆上牵引逆变器及其核心模块用的检测装置对车辆维修部门而言是非常必需的。
The detection device, which is applied in the traction inverter and core module on ac trains, is very important and necessary for the vehicle maintenance department.
同时，设计了用于牵引逆变器控制的二次数字陷波器以及低通滤波器滤除直流电压信号的二次脉动。
Simultaneously, the second order notch filter and low-pass filter are designed to filter the second order rippled DC voltage signal.
研究目的：研制开发用于漏电检测的差动电流传感器，以适应国产化a型地铁车辆的牵引逆变器接地保护的要求。
Research purposes: By researching and developing differential current transducer used for leakage detecting, to adapt the ground protection of traction inverter in localization type a metro vehicle.
介绍了IGBT地铁牵引逆变器的研制及试验情况，对该逆变器的结构及主要部件作了简要说明，给出了逆变器的主要参数。
Development and test of IGBT traction inverter for metro vehicle are introduced. Structure and main parts of the inverter are briefed. Main parameters are given.
西门子负责的部分包括：列车控制及诊断系统、牵引逆变器、辅助逆变器、制动电阻、高压箱及受电弓，以及牵引电动机和齿轮箱。
Siemens' scope of supply includes: train control and diagnosis system, traction inverter, auxiliary inverter, brake resistor, HV box and Pantograph, as well as traction motor and gear box.
燃料电池与牵引电机逆变器直接相连，与辅助电池和DC/DC器串联。
The fuel cell is connected with traction motor inverter directly and connected with the secondary battery and DC/DC convert in series.
介绍了日本为适应电动车组牵引控制系统节能，以及减轻维修工作量的需要而开发的矢量控制、粘着控制等逆变器控制技术。
The inverter control technologies of vector control, adhesion control, etc. developed to adapt to energy saving of EMU traction control system in Japan and to reduce maintenance work are described.
大功率GTO逆变器用于铁路电力牵引，其PW M控制与一般工业领域中的变频调速系统的PWM控制有很大不同。
High power GTO inverter is used for railway electric traction. Its PWM control is significantly different from variable frequency drive system in conventional industrial area.
以地铁车辆用DC750V牵引变频器为例，采用IGBT作为主要开关元件设计了逆变器主电路及控制系统，并利用MATLAB/SIMULINK进行了仿真。
It is designed that the main circuit and control system using the IGBT as its switch element based on the DC750V traction transducer of metro vehicles. The system is also simulated by MATLAB/SIMULINK.
然而，逆变器输出的PWM(脉冲宽度调制)连续高压脉冲的上升沿很陡、频率很高，导致在脉冲电压下牵引电机绝缘过早失效。
However, Pulse Width Modulation (PWM) which was input from inverter is characterized by steep rising edge and high frequency, resulting in the too early failure of motor insulation.
然而，逆变器输出的PWM(脉冲宽度调制)连续高压脉冲的上升沿很陡、频率很高，导致在脉冲电压下牵引电机绝缘过早失效。
However, Pulse Width Modulation (PWM) which was input from inverter is characterized by steep rising edge and high frequency, resulting in the too early failure of motor insulation.
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