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- DC electric traction system 直流电力牵引系统
- In this paper a vector controlled AC speed-regulating system is developed,which adopts the rotor flux field-orientated theory to meet the requirements for an electric traction system. 本文依据矢量控制的基本原理,针对电力牵引系统对电机控制性能的要求,设计了基于转子磁场定向的矢量控制交流调速系统。
- Three-Phase Harmonic Modelling for Power System and Electric Traction System 电力系统与牵引供电系统三相谐波模型
- effects caused by AC electric traction system on communication and railway signal equipments 交流电力牵引对通信信号的影响
- Development of electric traction system based on indirect field-oriented vector control scheme 基于间接磁场定向的电力牵引系统的研究
- Analysis on Power Supply Mode of Electric Traction System and the Effects of Traction Load on the Quality of Electric Energy 电力牵引系统供电方式及其负荷对电能质量影响的分析研究
- electric traction system 机车电传动
- effects caused by AC electric traction system on communication and railway signal equipments 交流电力牵引对通信信号的影响
- A series of advanced technologies are applied,e.g.,DC electric rig,stepless speed regulation pump and top drive system,steerable drilling system,powerful downhole motor,and advanced drill bit. 该井采用了直流电动钻机、无级调速泵及顶部驱动装置、导向钻井系统、大功率优质马达、优质钻头等一系列先进工艺,经科学论证与施工,取得了满意的效果。
- This paper describes the study and development of magnesia carbon refractories for DC electric arc furnaces. 本文阐述了直流电弧炉用镁碳质耐火材料的研究及发展。
- The quenching microstructure of low carbon steel after austenizing with and without DC electric field was studied. 研究了低碳钢在直流静电场中进行奥氏体化后淬火的显微组织。
- Arc maintains durative current collection by the electric traction train, however, they erode the pantograph &catenary system and produce electromagnetic interference to the environment. 电弧虽能维持电动列车取流的持续性,但对弓网系统会产生电气侵蚀,并对环境带来电磁干扰。
- The disposition of AC filter compensator of 70 t DC electric arc furnace of Xinjiang Bayi Iron &Steel Group Co. 叙述并分析了新疆八钢70t直流电炉交流滤波补偿装置的配置构成和补偿后电网电能质量的性能测试情况。
- With electric traction based on the wheel-rail system tractive effort transmission depends on adhesion conditions in wheel contactpoints, bad rail conditions reducing transmissable tractive effort. 基于轮轨系统电力牵引的力传递与轮轨接触点的粘着系数有关。
- It describes the inspection,test,repair and experiment method after one time coil seriously burned out of Lincoln DC-1500 DC electric welder. 叙述了美国林肯DC-1500直流电焊机变压器一次线圈严重烧坏后的检查、测试、修理及试验方法。
- This paper introduces two kinds of anti-interference measures on electrically controlled system of electrical traction shearer. 介绍了电牵引采煤机电控系统的硬件和软件方式抗干扰措施。
- This paper describes how DC electric field enhances oil flow, in creases water injectivity and disposes formation plug.It also giv... 介绍了直流电场强化油流、增强注水能力、解除地层堵塞技术,探讨了技术机理。
- Through the analysis of adhesion characteristics of the locomotive traction system, the simplified simulation model is built. 通过分析机车牵引系统的粘着特性,建立了简化的机车牵引系统仿真模型;
- Under the external AC and DC electric field, the effective nonlinearresponses and local potentials are induced by the cubic nonlinearity of Kerr materialsat all harmonics. 在外加直流电和交流电混合电场的激发下,各谐和频率下的有效非线性响应和相应的电势都可以被这种Kerr型复合介质的立方非线性特性所感应出。
- The trial operation of the vehicle lasting more than one year indicates the advantages of the electronic control unit and excellent performance of the traction system. 该车辆在上海莘闵线投入试运营1年多,充分展示了其电子控制单元的先进性和牵引系统的性能优势。