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Additionally, torque ripples produced by both the nonideal back electromotive force and low-speed current commutation could be restrained.

同时，系统能够有效地抑制非理想反电势和低速时电流换相引起的转矩波动。

A back electromotive force observer is constructed to acquire the information of speed as well as acceleration. By selecting the time constant or observer gain properly, the current command reduction characteristics can be adjusted freely in some range.

其中的反电动势观测器能方便地获得速度和加速度信息，通过适当调整观测器的时间常数和增益，就能使驱动电流指令值在一定范围内自由调解以达到控制目的。

Back electromotive force between two carbon electrodes , together with the wittibility of electrodes by the cryolite-alumina melts were studied in a walles cell with continual pulse technique.

本文采用连续脉冲技术，在观察无壁电解槽中电解质对碳电极湿润性的同时测量了两极间的电动势。

When a rotating voltage vector is injected to the motor at standstill, there is a microinching when the voltage phase is line to the direct axis of the motor. Then the current will decrease due to the back electromotive force. The initial mover position is identified by this change.

电压相位和电机直轴重合时，产生的电磁推力超过负载阻力，电机有一微动，由于反电势的作用电流就会降低，通过检测电流矢量的变化来估计动子的初始位置。

The key points of sensorless technology in PMBLDCM are to study a method which can detect rotor position accurately by simply method in whole speed range. After analyzing current sensorless methods of the PMBLDCM, it is found that those methods are successful at middle and high speed, but they often fail to detect rotor position at low speed when the back electromotive force is small or zero.

纵观目前的永磁无刷直流电机的无位置传感器控制方法，比较成熟而可行的方法多集中于电机在中高速区域运行时，能够较准确估计转子位置；电机处于低速、极低速、静止状态时电加热管，因为反电动势幅值较小或者为零，而无法正常工作。

By using the stator currents and back electromotive force as state variables,a T-S fuzzy model and a set of fuzzy rules were firstly transformed to represent the PMSM.

选择全局模糊滑模函数，采用自适应技术对不确定性上界进行估计，所设计全局控制器由T-S模糊局部补偿器与滑模监督控制器构成，给出了自适应律及稳定性的证明。

If the Baganda are not persuaded by this, Mr Museveni has total control of the Ugandan army and a Presidential Guard which is effectively his own personal army, while he has strengthened his grip on the police force.

如果通过这些说服不了布干达，那也不要紧，穆塞韦尼总统掌握了所有的乌干达军队和总统护卫队，同时他已经加强了对警察部队的控制。

I know that America and the world can benefit from trade with China, but only if China agrees to play by the rules and act as a positive force for balanced world growth.

我深知，美国乃至整个世界都能够受益于对华贸易，但前提必须是中国同意遵守市场规则，并在世界均衡发展中扮演积极的角色。

Emphasis on the stock market share price contains information on many of the future, when the market when information asymmetry, there will be some of the value of the stock is undervalued, but the market will be balanced by a mechanism to force the stock price and value of such.

强调市场份额的股票价格中包含的许多信息的未来，当市场信息不对称时，将有一些价值的股票被低估，但市场将是平衡的一种机制来迫使股票价格和价值等。

On a good note, the girliness of the pink is balanced by the grounding force of the black and the room seems much more open without the canopy bed.

我们可以注意到，粉红色是由房间的基础黑色来平衡的，这样的设计会使房间看起来更加的具有开放性，并且没有床架子的阻碍。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。