查询词典 electrical system
- 与 electrical system 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The orange coloured box is part of the electrical igniter system for the motor.
橘黄色的颜色方块的一部分,电气点火系统的汽车。
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The show also received the International Association of Lighting Designers, Illuminating Engineering Society of the United Kingdom, the United States National Electrical Manufacturers Association, the European system of alliances such as lamps 15 international organizations, concerned about the lighting be called a domestic street, courtyard-cum-field of outdoor lighting high-end brand event.
此次展会同时得到了国际照明设计师协会、英国照明工程师协会、美国电气制造商协会、欧洲制灯企业联盟等15个国际照明组织的关注,堪称是国内路灯、庭院灯暨户外照明领域的高端品牌盛会。
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There are four types of electrical facilities in system: the elementary power, the importability power, the continuous power and the conversion power.
组成电源系统的电源设备分为4类:基础电源,引入电源,不间断电源和变换器电源。
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Our company specializes in design, production control system and control equipment, and self-production of other electrical fittings, IMPREGNATION has professional equipment and sophisticated technology.
我公司专业设计、生产工控系统及控制设备,并自主生产其他电器配件,有专业的浸塑设备及成熟工艺。
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One new product research and development has long specialized in the employ of the automated control system for electrical senior engineer.
其中新产品研发部聘用了长期以来专业从事电气自动化控制系统的高级工程师。
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The simulation experiments of various kinds of electrode system under different pressure show that the gas inceptive when the gap is fixed, discharge voltage is proportional to the pressure; because the degree of uniformity of electrical field is different among the electrode systems, the changing trend of the inceptive discharge voltage with the pressure is unlikeness.
对各种电极在不同压力下进行模拟实验,实验表明:通常情况下,给定间隙,气体的起始放电电压随着压力的增大而增大;不同的电极系统,由于电场的均匀程度不同,起始放电电压随压力变化的趋势也不同。
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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。
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Electrode/Solution interface ; Electrical double layer ; Inner layer differential capacity ; Ag /aqueous system
电极/溶液界面;双电层;内层微分电容; Ag/水溶液体系
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It has much merit that controlling structure is simple, and the torque response of system is rapid and has no overtaking melody, and electrical energy can inpour electrified wire netting by returning unit.
它具有控制结构简单、系统的转矩响应迅速且无超调、电能可通过其回馈单元回馈电网等众多优点。
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With the efforts of pre-processing interelectrode electrical parameters, discharge voltage and discharge current, the data acquisition system is qualified only if it can gather signal with frequency of 2MHz, the maximum frequency the pulse power source can generate.
通过对待测信号的调理,使采集系统的任务降到只需以微细电火花脉冲电源的脉冲速率进行采样即可,即速率要求为2 MHz。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。