Only one space voltage vector is applied in each sampling period in the implementation of the conventional PMSM DTC system.
在常规直接转矩控制系统中，每一采样周期中只施加一个电压空间矢量。
New variable is introduced based on energetic equation, the period of vibration of three wire pendulum is studied using the method of rotating vector.
由能量方程出发，引入新变量，用旋转矢量法讨论了三线摆大角度摆动时的周期。
During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
在一个调制周期内，可预先求出几个死区电压矢量的合成矢量，用控制软件的方法实现对参考空间电压矢量的校正，从而消除死区效应。
The properties of long period gratings in photonic crystal fibers (PCFLPG) are systematically analyzed by the improved full-vector effective index model and the coupled mode theory.
将修正的矢量等效折射率模型和耦合模理论相结合，系统地研究了光子晶体光纤长周期光栅(PCFLPG)的特性。
During the period of employing IEEE1445 to resolve the problem of fault diagnose, the test vector set's reduction is a hard problem to the entire developing process.
在利用IEEE1445标准来完成电路板的故障诊断时，矢量的约简是整个测试程序开发过程中的一个难点。
Using Johansen co integration test and vector error correction model, this paper investigates the relationship between price of real estate and urbanization in China over the period 1991-2005.
运用协整分析方法与误差纠正模型，考察了1991 ~ 2005年中国房地产价格与城市化水平之间的关系。
Using Johansen co integration test and vector error correction model, this paper investigates the relationship between price of real estate and urbanization in China over the period 1991-2005.
运用协整分析方法与误差纠正模型，考察了1991 ~ 2005年中国房地产价格与城市化水平之间的关系。
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