查询词典 erratic current

In order to solve the problem of serious fluctuation of starting current in traditional control scheme, the author puts forward a new kind of starting method which can limit voltage value to achieve the goal of reducing fluctuation of the current by using zero voltage vector during the stage of starting.

文章分析了异步电动机直接转矩控制系统的工作原理及起动过程，针对传统控制方案存在起动电流波动严重的问题，提出一种通过在起动过程增加零电压矢量的方法限制电压值，达到减小电流波动的目的，对此进行了仿真研究，仿真结果表明该方法是有效的。

In the process of calculation, the stator terminal voltage was taken as restriction condition, and the starting current is iterated to obtain the starting current and starting torque under the rated voltage.

在计算过程中，以定子端电压为约束条件，对定子起动电流进行了迭代计算，得到了额定电压下的起动电流和起动转矩。

In the process of numerical computation of electromagnetic field, primary ending voltage is taken as constraint condition, primary starting current is iterated, and stating current and starting torque at rated voltage is obtained.

在电磁场的数值计算过程中，以初级端电压为约束条件，对初级起动电流进行了迭代计算，得到了额定电压下的起动电流和起动转矩，最后把正弦电磁场计算结果与实测结果进行了对比，表明直线感应电动机起动性能的计算结果满足工程实际的需要。

In this paper, according to the theory of electromagnetic fields, firstly, electromagnetic field of large and medium asynchronous motor is calculated from the angle of coupled fields, secondly, the end voltage of the stator is taken as constraint condition and starting current in stator is iterated in the numeral computation process, finally starting current and starting torque at rated voltage are gained, and by comparing calculation results with test results ,starting performance of large and medium asynchronous motor meet the demand of project practice.

本文根据电磁场理论，从耦合场的弱耦合角度首先计算了大中型异步电动机的电磁场，在电磁场的数值计算过程中，以定子端电压为约束条件，对定子起动电流进行了迭代计算，得到了额定电压下的起动电流和起动转矩，并把正弦时变场计算结果与实测结果进行对比，表明大中型异步电动机的起动性能的计算结果满足工程实际的需要。

For the direct current decouple controller, the P1 adjustor抯 parameter of current and voltage loop抯 is designed. The correction of the designed parameter is testified by simulating on two phase synchronization coordinate and three phase stationary coordinate, the simulation wave is given.

对直接电流解耦控制器的电流环和电压环的PI调节器参数进行了设计，并通过在两相同步坐标系与三相静态坐标系的仿真验证了设计参数的正确性，同时也验证了直接电流解耦控制方案的可行性，给出了仿真波形。

Encourag'd with this Observation, I resolv'd the next Morning to set out with the first of the Tide; and reposing my self for the Night in the Canoe, under the great Watch-coat, I mention'd, I launched out: I made first a little out to Sea full North, till I began to feel the Benefit of the Current, which set Eastward, and which carry'd me at a great rate, and yet did not so hurry me as the Southern Side Current had done before, and so as to take from me all Government of the Boat; but having a strong Steerage with my Paddle, I went at a great rate, directly for the Wreck, and in less than two Hours I came up to it.

这时，海面上已风平浪静，我很想冒险坐小船上那失事的船上看看。我相信一定能找到一些对我有用的东西。此外，我还抱着一个更为强烈的愿望，促使我非上那艘破船不可。那就是希望船上还会有活人。这样，我不仅可以救他的命，更重要的是，如果我能救他活命，对我将是一种莫大的安慰。这个念头时刻盘据在我心头，使我日夜不得安宁，只想乘小船上去看看。我想，这种愿望如此强烈，自己已到了无法抵御的地步，那一定是有什么隐秘的神力在驱使我要去。这种时候，我如果不去，那就太愚蠢了。所以，我决意上船探看一番，至于会有什么结果，那就只好听天由命了。

And then, the contiunous current modeof this circuit is discussed, and the PWM circuit and over-current -protection circuit are designed. At the same time, the calculation methods of storage inductance, output capacitor and sampling resistor are given.

讨论电路的电流连续工作模式，设计了电源的脉宽调制电路和过流保护电路，并给出了蓄能电感、输出电容和输出电压取样电阻的确定方法。

The second one is 2- D model used to simulate tide current or storm surge current.

为模拟长江口深水航道治理工程的导堤和丁坝，数学模型中采用了先进的线边界技术，导堤、丁坝对流场的影响在计算中得到了证实。

From the distinction of perpendicular search and current search, can explain the immediate cause that perpendicular search is sued simply: Current search is it is with the webpage most subsection, and perpendicular search is with structuralization data is most subsection.

从垂直搜索和通用搜索的区别上，可以简单解释垂直搜索受到起诉的直接原因：通用搜索是以网页为最小单位，而垂直搜索是以结构化数据为最小单位。

Of course, much more research needs to be done within this topic, for example, by analyzing the influence of specific parametric factors, such as those affecting the optimal weighting function for lightness differences.14 In any case, we believe that the current structure of the CIE94 formula will be useful, at least in the near future, without disregarding that the current use of the CIELAB space as the starting point could be surpassed by advances in the knowledge concerning color appearance and the physiology of our visual system.

当然， 更多的研究需要做的这个主题，为例如，通过分析具体的影响参数因素，如那些影响到最优加权函数为明度differences.14在任何情况下，我们认为，目前结构的CIE94公式将是有益的，在至少在不久的将来，同时不忽视，目前的利用色差空间为出发点可以超过的进步，知识的颜色外观和生理的影响我们的视觉系统。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。