交流传动技术已成为当今世界上牵引动力高新技术的标志。
Technology of alternating transmission has became the milestone of new technology in the tractive power field around the world.
交流传动技术从其诞生之日起就显示出直流传动无法比拟的优越性。
AC drive technology since it appeared in the world has showed advantage over DC drive technology.
叙述了钢铁工业自动化在DCS、人工智能技术、CIMS、现代控制理论和交流传动技术等方面的进展，以及钢铁工业自动化的发展趋势。
The progress of automation in iron and steel industry in aspects of DCS, artificial intelligence, CIMS, modern control system and AC electric drive is described and the development trend prospected.
异步电机无速度传感器矢量控制技术提高了交流传动系统的可靠性，降低了系统的实现成本。
The speed sensorless vector control of induction motor technology enhances the reliability of AC driving system, and reduces the realization cost.
对国产首台ac4000交流传动干线电力机车试验中暴露出的几个技术问题及其原因进行了初步的分析与探讨。
Analysis and discussions are made on certain technical problems occurring during the test of AC4000, the first ac drive main line electric locomotive as well as the causes thereof.
详细介绍了HXD1型大功率交流传动机车转向架轮对驱动系统的结构、技术特点及性能，对机车车辆转向架驱动装置的开发设计提供较好的借鉴。
The structure, technology characteristic and performance of wheel set drive system of bogie on type HXD1 high-power ac drive locomotive are presented detailedly.
电气制动是交流传动车辆安全运行的关键技术之一。
For the safety running of ac drive vehicle, electric braking is one of the most important factors.
因此，基于无速度传感器的直接转矩控制技术成为目前交流传动的研究热点。
The direct torque control technology based on speed sensorless had become the current researching hotspot of AC drive.
交流传动系统实验技术和设备是交流传动机车研究、开发及专业教学的重要手段。
The experiment technology and equipment of ac drive system are the important method of the study, development and speciality teaching of ac traction engine.
该技术也可用于交流传动的拔管设备。
该技术也可用于交流传动的拔管设备。
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