充电

This article is for the nickel-metal hydride rechargeable battery of a detailed study that can bring in related fields of study to help.

本文则对镍氢充电电池的特性进行了详细的研究，希望能给相关领域的研究带来帮助。

Our company is set research and development, manufacturing production, marketing, in one of the sealed environment-friendly nickel-metal hydride rechargeable batteries professional manufacturers.

我公司是集研究开发、生产制作、市场营销于一体的密封环保型镍氢充电电池的专业厂家。

Is a product for communicate equipment, which supply connected equipment and control hypostasis safety power supply

DXJ-24矿用隔爆本安电源为煤矿通讯设备的配套产品，向关联设备提供充电、控制用的本质安全电源

Long-term when not in full charge to 20 days once every three months may be interested in using space-time, in order to get through charging lead-acid precipitation caused by the internal resistance.

长期不用时，20天也要足充一次，每三个月时可有意用空一次，以便充电时打通铅酸沉淀造成的内阻。

Battery start test, first full in charge of the battery and then start the engine from cold condition 3 times.

起动试验Starting Test 电起动试验，先将起动蓄电池充足，在中途不补充充电的情况下，柴油机从冷态开始连续进行3 起动试验。

A simple constant voltage and constant current charger has been improved, the state of float charger has been added to the charger in order to guarantee the full charge of battery safely, with high charge speed.

本论文对一种简单实用的恒压恒流充电器进行了改进，在恒压恒流充电的基础上加入了浮充状态，从而保证了蓄电池的满充；同时对充电器的功率电路和控制电路进行了详细的设计，并且给出了实验结果。

It was in the charge of one of my brother's friends.

它在充电我的兄弟的朋友之一。

If that is the case,I can only say it is because of your incapability,staying put after muddling along for so many years,now pysical labors are better-off than you.

如果是这样的话，我只能说你能力有问题，混了很多年了还这样，现在的民工都没你这样的，建议你先去充电再说。

It is shown that what affect the amplitude of pre-pulse voltage are the grounding inductance and the frequency of the charging loop circuit, which is determined by the secondary coil inductance of transformer and the capacitance of PFL.

研究表明由变压器副边电感和脉冲形成线电容构成的回路充电频率和接地电感的大小是影响预脉冲电压幅值的主要因素。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。