最新刊期
期 2 ， 2012
- 摘要：In order to accurately estimate the rotor angle and speed for sensorless control of interior permanent magnet synchronous motor (IPMSM), a nonlinear state observer was presented based on motor state equations and nonlinear theory, and the stable criteria of the observer was stated based on Lyapunov stable theory. Considering the influence of load disturbance, the load torque estimation was added to the observer. Because the modeling and sampling were not perfect, errors existed between the real states and the estimated states, so a compensation method was introduced. The convergence and accuracy of the state observer were proved through simulations and experiments.关键词：interior permanent magnet synchronous motor (IPMSM);sensorless control;nonlinear observer;load torque estimation
- 297
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- 3
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发布时间：2021-12-13 - 摘要：Dynamic models of 200 km/h high-speed power cars with semi-body and flexible suspensions were established respectively, the dynamic performance of which was compared and analyzed. It was showed that both of the suspension mode satisfied the speed requirement of 200 km/h and affected car’s curve passing performance little, and the high-speed power car with semi-body suspension had higher nonlinear critical speed and better straight riding quality but worse vertical riding comfort.关键词：high-speed power car;dynamic performance;semi-body suspension;flexible suspensio
- 471
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Process of basic brake power setting of EMUs was introduced. With instances, mode and means of basic brake discs power distribution were analyzed emphatically, which were validated reasonable by simulation results.关键词：basic brake power distribution;brake power;emergency braking;brake system
- 760
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Operating principle of HXD3 locomotive brake and its control equipment was introduced, and reason of train pipe abnormal pressure reducing caused by control equipment was analyzed. Iteration arithmetic based on timestamp to update the position judge value of control equipment was proposed, which solved the abnormal brake problem caused by handle position locater output-value error affected by environment, and ensured the operation security of train well.关键词：HXD3 locomotive;brake;control equipment;iteration arithmetic
- 790
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- 2
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- 0
发布时间：2021-12-13 - 摘要：The control method of hybrid diesel locomotive based on diesel and battery and the composition of hybrid diesel locomotive electric drive system was introduced, and the locomotive states control, battery control, power matching, braking energy recovery were declared, corresponding control method of which was proposed.关键词：hybrid;diesel locomotive;control method;electric drive
- 858
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- 5
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- 0
发布时间：2021-12-13 - 摘要：The axle box pull rod of SS7E Electric locomotive was introduced. According to the requirement of speedup, the structure of old product was improved based on the same space envelope and interface dimension. The stiffness and fatigue test results indicated that new structure product could meet the stiffness requirement and had the longer fatigue life, the application results also showed that it could provide the proper primary suspension stiffness and meet high-speed requirement of locomotive.关键词：SS7E electric locomotive;axle box pull rod;lateral stiffness;longitudinal stiffness;fatigue life
- 532
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- 2
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- 0
发布时间：2021-12-13 - 摘要：The requirement and main technical parameter of SDA1 AC-driving diesel locomotive for Australia application were introduced briefly, and the control system structure and microcomputer network communication system design were expounded systematically. The practical operating validated the reliability and stability of the system.关键词：SDA1 locomotive;AC-driving;microcomputer;network communication system;ICE;LCU;EOT;LSI
- 484
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Digestion-absorbtion and localization progress and existing condition of 200 km/h EMUs importing water-pump system were introduced. The structure and control principle of water-pump system was analyzed. The localization and importing pump was compared and the operating problems and solving measures were provided.关键词：water pump;system control;localization;adaptive modification;200 km/h EMUs
- 385
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Main parameters, power circuit and general structure of IGBT traction inverter employed in TEP-15HI02-type maglev train were introduced. The technical features were described briefly. The performance of the inverter during testing and trail operation satisfied the demand of maglev traction.关键词：IGBT;traction inverter;maglev train;AC drive;power circuit
- 793
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- 4
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- 0
发布时间：2021-12-13 - 摘要：Structure composing, technical characteristic, technical parameter and work principle of CRH EMUs under-floor lifting system were simply described. It was pointed that via the innovation application of whole unit cantilever under-floor lifting system to EMU depot, maintenance efficiency were greatly improved.关键词：CRH EMUs;under-floor lifting system;bogie hoist;body hoist;maintenance
- 639
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- 2
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- 0
发布时间：2021-12-13 - 摘要：In the paper, to reduce the DC-link capacitor voltage harmonics of dual-cascading PWM rectifier in electric traction AC drive system, firstly, the theoretical design method of DC-link capacitor was introduced, then, the characteristic of high order harmonics of DC-link voltage in the steady-state was derived, and DC link voltage ripple of the dual-cascading PWM with carrier phase-shifting technology was analyzed in detail. The theoretical analysis showed that the high order ripples of DC-link voltage were mainly distributed around the twice switching frequency, and the carrier phase-shifting technology could reduce these high order ripples to suppress the DC voltage ripple coefficient. Therefore, the DC-link capacitor could be minimized based on traditional design method in combination with carrier phase-shifting technology. Control methods with and without carrier phase-shifting technology were compared in computer simulation and hardware-in-theloop( HIL) experiment system respectively, which showed the validity and effectiveness of theoretical analysis.关键词：PWM rectifier;carrier phase-shifting;DC-link capacitor;optimized harmonics
- 567
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- 2
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- 0
发布时间：2021-12-13 - 摘要：In this paper, flaw in the hauling/braking friction force mechanism of the M3919b master controller which applied in HXD1C 7 200 kW electric locomotive was researched, and based on existing structure and practical work situation, the new design proposal was provided to raise the product manufacturing efficiency and the locomotive movement stability.关键词：HXD1C electric locomotive;M3919b master controller;friction force mechanism;new design proposal
- 772
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- 2
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- 0
发布时间：2021-12-13 - 摘要：The working principle of master controller was analyzed, and necessity of master controller performance testing was pointed out. According to the logical relationship between the operations of master controller, the detecting device’s hardware and software were designed, and test methods were described in detail for making comments on master controller performance.关键词：metro vehicle;master controller;performance parameter;setection device
- 745
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- 3
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- 0
发布时间：2021-12-13 - 摘要：A metro train traction motor and gear box remote monitoring system was designed in this paper, which was based on ZigBee network, GPRS remote transmission and labVIEW-writed PC software. This system realized networked real-time data collection and data remote transmission of 3D acceleration and temperature of train traction motor and gear box. Test results showed that data collected was accurate and data transmission was real-time which proved the system could complete continuous remote monitoring of running train state.关键词：remote monitoring;ZigBee;GPRS;wireless transmission;LabVIEW;traction motor;gear box;metro
- 895
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Linear motor vehicle technology of Guangzhou metro 6th line was introduced, and the difference from 4th & 5th line vehicle was illustrated, which pointed out that the vehicle design of 6th line was improved and optimized based on 4th & 5th line vehicle technique.关键词：linear motor vehicle;technology analysis;technology improvement;Guangzhou metro 4th line;Guangzhou metro 5th line;Guangzhou metro 6th line
- 826
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- 5
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- 0
发布时间：2021-12-13 - 摘要：Mechanic environment test requirement of rolling stock equipment was expounded, and technic specification of rolling stock equipment vibratory and shock test system was presented. The difficulties of technic specification implementation were analyzed, and the settling scheme was provided. The giant vibratory and shock test system based on the proposed scheme had passed the measurement calibration and test certification, and all the indexes had reach or forereach the design requirements, which satisfied rolling stock equipment system test demands.关键词：rolling stock equipment;vibrating and shock;test system;technic specification;mechanic environment
- 488
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- 2
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- 0
发布时间：2021-12-13 - 摘要：According the controller area network (CAN) used in the existing distributed locomotive fault detecting and recording system not suitable for vehicles bus, the scheme using the multifunction vehicle bus (MVB) was proposed. The key design concepts of system structure and operating principle alteration were described in detail, and the multi-function interface MVB adapter based on SOPC (system on a programmable chip) technology was designed. Hardware and software realization of the design was given, and its correctness and feasibility were verified ultimately by the network test in the lab. The improved network has farther transmission distance, higher rates, better reliability and real-time performance.关键词：distributed locomotive fault detecting and recording system;MVB;CAN;SOPC
- 821
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- 2
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- 0
发布时间：2021-12-13 - 摘要：The on-line detection hardware and software system for locomotive oil damper were introduced, which was applied to obtain a large number of data for SS9 electric locomotive oil damper running on rail and filled the blank in oil damper on-line detection field in our country. The data of oil damper on-line detection can provide basis for design of locomotive oil damp equipment, as well as for design of the bogie suspension system of rolling stock.关键词：electric locomotive;oil damper;on-line detection
- 645
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Line converter of CRH2 EMUs was constituted of single-phase three-level topological structure. Based on the calculation of single-phase two-level converter input harmonic, harmonic characteristic of single-phase three-level converter input voltage & current was analyzed. The factors impacting THD of converter input current were studied, and the input inductance design principle was expounded. Results of simulation with MATLAB and practical test validated the theoretical analysis.关键词：line converter;three-level;harmonic analysis;THD;CRH2 EMUs
- 836
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- 6
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- 0
发布时间：2021-12-13 - 摘要：The design concept and major parameters of electric drive system of the HXD1C locomotive was introduced. The test and application of the electric drive system were described, which showed that the design was reasonable and reliable, meeting the design requirement.关键词：HXD1C;electric locomotive;AC drive system;technic parameters;test;application
- 793
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- 9
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- 0
发布时间：2021-12-13 - 摘要：Structural analysis model of metro platform screen door (PSD) mechanical system was built, and FEA method was employed to study the modal and structural stiffness of PSD system for getting the natural frequencies and vibration modes from modal analysis, and obtaining the deformation and stress distribution of the whole PSD and its key parts. By the calculation model and method, the structural properties of the PSD system and its design feasibility were evaluated, which provided theoretical base for the optimum and reliability design of PSD system.关键词：PSD system;modal analysis;FEA structural analysis;stress;metro
- 791
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- 2
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- 0
发布时间：2021-12-13 - 摘要：In order to solve the shortcoming of the on board passenger information, an IAP-based remote updating method was proposed, principle and running processes of which were introduced. This method could solve the problem of traditional method such as not flexible update and large amount of demolition work.关键词：IAP;remote update;in-chip FLASH;passenger information displays;ARM
- 738
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- 2
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- 0
发布时间：2021-12-13 - 摘要：Taking J2EE technology and current railway information platform as the background, the basic idea and the system structure of J2EE were introduced, and how to apply this system to information platform of LKJ locomotive equipment integrated management system was discussed. This system specified LKJ soft chip reform, locomotive card control and so on, which ensured safety of railway transportation.关键词：MVC;Struts;J2EE;LKJ;management system
- 744
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- 2
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- 0
发布时间：2021-12-13
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