查询词典 in view of

In view of this reason, the paper introduced ahigh-precision instrument for inductance and capacitor measurementbased on single-chip.

鉴于这样的原因，本文介绍了一种基于单片机的高精度电感和电容测量仪器的设计。

FIG. 6 is a top view of an induction coil of the present invention.

图六为本发明的一个感应线圈的侧视图。

FIG. 7 is a side view of the induction coil of FIG.

图七为图六的侧视图。

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。

Guidelines for the optimum inductor design are proposed from the point of view of the integrated circuits design and technology.

在此基础上，分别从集成电路设计和工艺实现的角度提出了电感的优化方法。

They took the view that it was unfair for the economically developed world, which had been able to industrialise at the expense of the environment, to deny the developing world a similar opportunity in the name of environmental protection.

他们持有这种观点：在发达国家体系中，原本能够以牺牲环境为代价而实现工业化，而在发展中国家的世界中以环境保护为名义而被排斥类似的机会的做法是不平等、不公正的。

This thesis is focused on analysis of pension system from the angle of view of industrialization.

本文从工业化的角度出发，研究养老金制度问题。

Often we think ineffectively because we take too limited a view.

经我们人思考效率不高是因为我们的观点太受限制。

In the case of news, this practice, in my view, results in inefficient communication.

在新闻方面，我认为这种做法不能进行很好的交流。

From the point of view of the industry, one can regard the existence of a rising supply curve as reflecting the inelasticity of supply of entrepreneurial capacity and other factors, the amount of which the individual firm is not free to vary.

从行业的角度来看 [10]，我们可以把向上倾斜的供给曲线视为企业家才能及其他要素的供给缺乏弹性所引起的，个体厂商无力改变这些要素的数量。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。