Its thought is to change the model of the asynchronous motor through the coordinate, make it become direct current motor model, divided the electric current vector of the stator into according to the weight of two pieces of direct current with directional magnetic field of the rotor and controls, realize magnetism coherent and torque solve lotus root control , in the hope of the control result of the direct current reaching machine.

其思想就是將異步電動機(jī)的模型通過坐標(biāo)變化日韩一级啪啪，使之成直流電動機(jī)模型，將定子電流矢量分解為按轉(zhuǎn)子磁場定向的兩個直流分量并分別加以控制免费人成视频网站在，從而實(shí)現(xiàn)磁通和轉(zhuǎn)矩的解藕控制国产激情刺激精品狼区，以期達(dá)到直流電機(jī)的控制效果。

Direct current is rejected: When the electricity owes and presses the trouble in the city, it will be too automatic to supply power disconnectedly at all that the direct current of connecting with end of direct current is rejected, direct current rejects and can provide the signal while discharging, if discharge to the terminal voltage, will change over to and prepare against the electricity to run in system, while closing to stopping discharging the voltage, the system will provide the signal of warning.

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This thesis calculates emphases the excitor circult of AC excitor .but the calculate of excitor circult must solve two problem: how to caculate the output AC phasic potential, phasic electric current and the capacity of AC excitor basing on the main generator direct current excitating voltage and direct current excitation current ;how to caculate the armature feedback, power factor and required ampere-turn of AC exciter.

本文重點(diǎn)對交流勵磁機(jī)的磁路進(jìn)行計算激情狠狠文学网，但磁路計算先要解決兩個問題：如何根據(jù)主發(fā)電機(jī)給定的直流勵磁電壓和直流勵磁電流計算出交流勵磁機(jī)的輸出交流相電勢，相電流及交流勵磁機(jī)容量大胆殴美视频一区；如何計算交流勵磁機(jī)的電樞反應(yīng)激情说，功率因數(shù)及其所需的安匝數(shù)。

Then introduce the principle of work and the construction characteristic. This thesis calculates emphases the excitor circult of AC excitor .but the calculate of excitor circult must solve two problem: how to caculate the output AC phasic potential, phasic electric current and the capacity of AC excitor basing on the main generator direct current excitating voltage and direct current excitation current ;how to caculate the armature feedback, power factor and required ampere-turn of AC exciter.

本文重點(diǎn)對交流勵磁機(jī)的磁路進(jìn)行計算91偷拍超碰，但磁路計算先要解決兩個問題：如何根據(jù)主發(fā)電機(jī)給定的直流勵磁電壓和直流勵磁電流計算出交流勵磁機(jī)的輸出交流相電勢国内精品免费一二三区三，相電流及交流勵磁機(jī)容量；如何計算交流勵磁機(jī)的電樞反應(yīng)一级黄色毛片免费在线观看，功率因數(shù)及其所需的安匝數(shù)91免费免费国产在线观看。

The element equations are derived in a fixed current element coordinates which are coincident with the current moving element coordinates. The perturbed moving element coordinates and the variation of the element nodal rotation parameters corresponding to the perturbation of element nodal displacements and rotations referred to the current fixed element coordinates is consistently determined using the first order linearization of the way used to determine the current element coordinates and element nodal rotation parameters corresponding to the incremental element nodal displacements and rotations referred to the global coordinates.

本研究在梁元素當(dāng)前的變形位置上，利用元素節(jié)點(diǎn)的座標(biāo)及斷面方位建立一個移動元素座標(biāo)并決定元素節(jié)點(diǎn)的旋轉(zhuǎn)參數(shù)色五月夫网站，對應(yīng)於元素節(jié)點(diǎn)旋轉(zhuǎn)參數(shù)擾動量的廣義節(jié)點(diǎn)力為一廣義力矩免费看涩涩的网站h，為推導(dǎo)傳統(tǒng)力和力矩與該廣義力矩的關(guān)系，本研究在一個與當(dāng)前的移動元素座標(biāo)重合的固定元素座標(biāo)上男人的天堂综合网尹人网，推導(dǎo)出元素節(jié)點(diǎn)在當(dāng)前固定元素座標(biāo)的擾動位移和擾動旋轉(zhuǎn)與元素節(jié)點(diǎn)旋轉(zhuǎn)參數(shù)的擾動量的關(guān)系中文字幕-CaO|草榴神社。

According to the invention, an exact flux-inducing current component of the rotational field machine is formed dependent on the flux-building current components formed, an amount of the machine flux vector formed, and on a value of the machine's main inductance. This component as the flux-inducing current component is compared to the flux-inducing current component set value.

按照本發(fā)明，根據(jù)所形成的磁通感應(yīng)電流分量中国性交一级A片、所形成的一電機(jī)磁通向量絕對值以及一電機(jī)主電感的值可形成感應(yīng)式電機(jī)的一精確的磁通感應(yīng)電流分量香蕉五月天色，它作為磁通感應(yīng)電流分量實(shí)際值與磁通感應(yīng)電流分量額定值相比較。

The post-arc fulgurite current of low voltage current limiting fuse is studied. It is show that post-arc fulgurite current varies with breaking current.

對低壓限流熔斷器中的弧后殘軀電流進(jìn)行了研究网页黄色网站可以看，得出弧后殘軀電流隨開斷電流大小變化而變化韩国a级电影在线观看。

More : current, electrical current, current flow, electricity, electrorheograph, galvanism, galvanic current, currents

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A quick and correct forecast of tidal current when oil spill occurs is a key step in the forecast of oil spill. Based on the harmonic constant of tidal component of M2, S2, O1 and K1 in Lingshan Island, Laoshantou and Chaolian Island, and by using harmonic method, the thesis first conducts a current forecast in a single point, and then builds up a current field forecast in Jiaozhou Bay and its adjacent seas. The computed results match well with the actual situation. The method reduces greatly the time of real time current forecast by not using numerical stimulation, so it fit to the two requirements of quickness and correctness in oil spill forecast system.

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From the view of torque controlling strategy, the relation between the torque controlling strategy such as the electric current feedback method在线看中文字幕、 PWM open loop method etc and the vehicle driving way is analyzed firstly, then the conclusion could be drawn that the PWM open loop method has more advantages than the electric current feedback method when they are both used in the same vehicle which is direct driving by hubcap motor. Secondly, based on the electric motor mathematic model and its experiment, a new permanent brushless dc motor phase electric current detector method in which a digital signal processor and single current sensor are used is introduced.

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