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双语推荐：堵转

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异步起动永磁同步电动机堵转参数包括堵转转矩和堵转电流,是评价电机起动性能的重要指标。针对异步起动永磁同步电动机堵转参数计算不准的问题,在分析了堵转时电机各转矩分量的基础上,采用时步有限元仿真电机的堵转试验,并通过合理地处理堵转参数曲线,得出电机的堵转参数。分别计算了5台异步起动永磁同步电动机的堵转参数,对比试验值,堵转转矩误差在10%以内,堵转电流误差在15%以内,证明了该计算方法可以满足工程需要。
Line-start permanent magnet synchronous motor locked rotor parameter which includes locked ro -tor torque and locked rotor current is one of the most important indexes evaluating self-startup abili-ty.According to the inaccurate calculation of line-start permanent magnet synchronous motor ( LSPMSM ) locked rotor parameters , torque component during the state of locked rotor was analysed.Time-stepping finite element method was used to simulate locked rotor test , and the locked rotor parameters were achieved by dealing with the locked rotor parameter curves reasonably.Five LSPMSMs locked rotor parameters were cal-culated.Compared with test values , the calculation error of locked rotor torque was within 10%, while that of locked rotor current was within 15%, which proved that the calculation method can meet the needs of en-gineering.

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提出一种基于动态采样方式的电动窗控制技术,该技术根据电动窗电机每次启动时的动态电流,经过加权平均计算出动态堵转电流参考值,然后确定该次的玻璃升降堵转电流,避免了采用固定堵转电流控制方式因受外部因素影响而导致的电动窗升降故障。试验结果表明,基于动态采样的汽车电动窗控制技术能够根据外部环境条件自适应调整堵转电流大小,有效解决了汽车在不同环境下玻璃升降过程中出现的故障和问题,提高了汽车电动窗控制器的可靠性和稳定性。
In the paper, an auto window control technology based on dynamic sampling technology is presented, which, according to dynamic current each time the electric window motor is activated, calculates the dynamic locked-rotor current reference value by means of weighted average, then determine glass lifting locked-rotor current, preventing the fixed locked-rotor current control method from being affected by external factors and lead to electric window failure during lifting. Test results show that this auto electric window control technology based on dynamic sampling can adaptively adjust magnitude of locked-rotor current according to external environment conditions, effectively eliminating the failure and defects of window glass during lifting under different circumstances, improving reliability and stability of auto electric window controller.

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通过对异步电机T型等效参数进行计算求解，并且根据所测数据及空载和堵转试验数据对T型等效电路图及空载和堵转特性曲线进行绘制。通过此软件，可以轻易获得三相异步电机电机参数，试验特性曲线，具有一定的实用价值。
This paper carries on the induction motor Tequivalent parameters calculation, and according to the measured data and the no-load and locked rotor test data drawing of T type equivalent circuit diagram and no-load and locked rotor charac-teristic curves. Through this software, one can easily obtain the parameters of asynchronous motor, test characteristic curve, and has a certain practical value.

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目的：探讨应用国产封堵器经导管介入封堵治疗嵴内型室间隔缺损（ intracristal ventricular septal defect，IVSD）的近期及远期效果。方法2005-07至2010-12经超声心动图初诊43例IVSD患者，男24例，年龄3～21岁，女19例，年龄10～28岁，超声测量直径平均（4．5±2．8） mm（3～8 mm）。按常规方法建立股动脉-室间隔-股静脉的轨道行介入治疗，选用国产封堵器治疗。结果43例患者最终确诊为IVSD，其中有2例转心外科治疗，1例合并主动脉缩窄，另1例合并右室流出道狭窄。有3例介入手术未成功，成功封堵的38例中术后有3例主动脉瓣微量反流，随访平均6．5年（4～9年），期间仍有1例患者主动脉瓣微量分流。封堵器无移位，无心律失常。结论国产封堵器介入治疗嵴内型室间隔缺损效果肯定，成功率高，残余分流及封堵器移位发生率低，远期随访疗效可靠。
Objective To assess the efficacy and long-term effect in interventional treatment of intracristal ventricular septal defect(IVSD).Methods Forty-three patients with IVSD confirmed by echocardiography were recruited, of whom 24 men with the age ranging from 3-21 and 19 women with the age ranging from 10-28years.The diameters of IVSD measured by echocardiography ranged 3-8 mm [mean(4.5 ±2.8) mm].The arteria cruralis-interventricular septal defect-femoral vein track was occluder established under the left ventricular and ascending arortic angiography,was used by demostic plugging device.Results Of all patients, the defects in 38 patients were successfully occluded, showing that the left to right shunt disappeared and minimal aortic valve regurgitation occurred only in three patients after the procedure.The occluders were not removed and cardiac arrhythmia did not occur after 4-9 years follow-up.Three of them were unsuccessful.Two patients underwent surgical operation, because th

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舞钢1260 m3高炉采用转鼓过滤法渣处理工艺，该系统自投产以来，出现返渣管道堵管、转鼓分配器堵塞、粒化塔检修口溢渣、热水池底部积渣、溢流管大量渣水外排等一系列问题，严重影响了高炉正常生产。作为设计者和现场调试者，归纳总结了该系统的改进措施及改进效果。
The 1260 m3 blast furnace of Wuyang Steel adopted INBA slag treatment process, which had suffered series of problems since commissioning, such as pipe blockage by slag return, blockage of drum distributor, slag overflow at the maintenance port of granulation tower, slag accumulation on the bottom of hot water pond and large quantity of slag water discharge from the overflow pipe, seriously affecting normal production of the blast furnace. As the designer and site commissioning engineer, the author summarized improvement mea-sures and implementation results of the system.

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目前在城市污、雨泵站中仍然大量使用传统的格栅，如果发生严重的杂物拥堵常常会引起排水不畅，给城市交通与人民生活造成很大的影响。本文提出了一种新型转碟式格栅可以有效解决这一问题。
At present,in urban sewage and rain station,a large number of traditional grids are still used.In the event of serious debris,jam can often cause poor drainage,which may have a big im-pact on urban traffic and people''s life.The author of this paper puts forward a new type of disc-type grid,which can solve this problem effectively.

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采用有限元法建立了佳能镜头上使用的中空环形行波超声波电机定转子接触模型.通过建立定转子有限元接触模型并在定子中性面上施加行波运动,得到定子齿表面质点的斜椭圆运动及其与转子的接触状态,比较了空载和堵转情况下定转子接触表面质点的法向和切向运动及定转子接触压力分布.空载和堵转时接触压力分布有明显不同,表明负载转矩对接触压力分布有影响.用实验数据对提出的理论模型进行了验证,理论分析结果与实验数据基本吻合.最后,对电机转子结构提出了改进方法,理论分析表明,采用改进后的转子,电机的转矩-转速特性有了明显改善.
The focus of this paper is to study the contact model of a hollow ring type traveling wave ultrasonic motor used in the Canon auto-focus lens with the finite element method.First,the finite element contact model is built and the traveling wave motion is applied to the neutral plane of the sta-tor.The sloping elliptical motion of the stator surface and the contact status of the stator and the rotor are obtained.The motion of the stator and the rotor as well as the contact pressure in the contact sur-face are compared when the rotor is applied with no load torque and stalled.The contact pressure when the rotor is applied with no load is significantly different from the contact pressure when the ro-tor is stalled,which indicates that the load torque has an effect on the distribution of contact pres-sure.Then the proposed model is verified by experimental data.The analytical results are in good agreement with the experimental results.Finally,a new rotor is proposed and it is indicated that

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通过分析电机的等效电路，在保持磁通不变的基本方法下，分析了60Hz电机在50Hz的频率下，电机温升、堵转、空载运行的状态，通过试验对比，提出60Hz电动机在50Hz电源的出厂试验中，采用降压17%的等效试验方法是可行的。
Power supply is 50Hz in our country, so the factory should fit out frequency conversion supply in the 60Hz motor factory inspection. The 60Hz motor was usually inspected in 50Hz power with the depressed voltage, when the factory could not fit 60Hz power supply. The motor’s equivalent circuit was analysed in the paper, on the principle of retaining magnetism. Temperature rose, blocked up and no-load state were analysed when 60Hz motor was operated under 50Hz power supply. After experimentations, in the factory inspection of 60Hz motor, it was found that the test result was viable and rational with the voltage cut down by 17%.

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论文介绍胰岛素泵控制器的软硬件设计.该控制器由十个模块电路构成,论文详细介绍了电源管理模块、电机控制模块、转速测量模块和电机堵转模块的具体实施方法,论文还进一步介绍了降低系统功耗的软硬件措施.样机测试结果表明系统成本低廉、性能稳定、使用方便,具有广泛的应用前景.
In this paper, an insulin pump controller is introduced by hardware and software design. The pump controller consists of 10 modules circuits and 4 typical modules circuit including power management module, motor control module, speed measurement module and motor stall module, are detailedly introduced. In addition, some methods are also used to reduce system power consumption from hardware and software. The testing result of prototype shows that the system is stable, low cost, easy to use and the controller will be widely used to control the insulin pumps.

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在设计中使用MSP430F169单片机提供控制电机需要的PWM信号，通过电机驱动芯片MSK4226实现直流电机的四象限运行；驱动芯片上的电流测量环节保证电机运动中不发生堵转；最后比较了电机直接启动与四象限控制中的响应速度与达到稳态的时间。
In the design, the PWM signal required for motor control is provided by the MSP430F169 MCU, and the four-quadrant operation of the DC motor is realized using the motor driver chip, MSK4226; the current measurement on the driver chip ensures the prevention of the motor from locked-rotor during operation; and finally, the response speed and the time to reach the stable state in the cases of motor direct-start-up and four-quadrant control are compared.

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