On the basis of the mathematical model of induction machine, simplified mathematical model is deduced, at the same time the theory of DTC is introduced with the concept of space vector.
本文从异步电机的数学模型出发，推导了异步电机简化数学模型，同时结合空间矢量的概念介绍了直接转矩的基本原理。
A progressive representation model for street networks of vector data was presented based on the theory of plane Euclidean graph and abstract complex cell.
基于平面欧几里得图和抽象胞腔复形理论，提出了街道网矢量数据的渐进式表达模型。
Considering the complex influence factors for the failure of drill stem, an analytic model for failure of drill stem based on support vector machine and cluster analysis theory was established.
针对钻具失效影响因素比较复杂的问题，建立了基于支持向量机和聚类分析理论的钻具失效原因分析模型。
Based on the vector radiative transfer theory, the theoretical model of foil clouds with complex structure and great number has been built.
本文根据随机介质的矢量输运理论，建立了大数量复杂结构的箔片云团理论模型。
A grey relation projection model for regional eco-environmental quality evaluation is established based on grey system theory and vector projection principle.
基于灰色系统理论和矢量投影原理，建立了区域生态环境评价的灰色关联投影模型。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
根据矢量控制理论和自动控制原理，建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
Moreover, Chapter Three analyzes the effects of the foreign reserve on the money supply empirically through the cointegration theory and vector autoregression model.
第三章利用协整理论与向量自回归模型，从实证上分析了外汇储备对我国货币供给的影响。
Then, the induction motor vector control theory and its mathematical models were analyzed, with the speed estimator model.
其次，分析了异步电动机矢量控制原理和数学模型，以及转速推算模型。
This paper analyzed the spatial characteristics of tree-like river networks, and built vector model based on graph theory.
以树状河系为研究对象，分析其空间特征，建立基于图论的水系网矢量模型。
To analyze the machined quality of cylindrical surface with line-contact rotating-milling, the kinematic model of tool-teeth is built based on vector theory.
为了分析线接触回转铣削外圆柱工件表面加工质量，运用矢量运算方法建立了线接触回转铣削外圆柱工件运动学模型。
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。
The kinematic model is first studied using the vector theory.
基于复数向量表示法，建立了机构的运动学模型；
This paper studies the theory of similarity of the vector flow deanroom and presents a model vector flow deanroom which is designed on the basis of the theory.
根据相似准则设计了一个模型矢流洁净室，实测了室内速度场，得出室内流场的基本特点。
The support vector machine based on statistical learning theory is applied to establish a time series model for simulating the monitoring data of dam seepage flow.
大坝渗流监测分析是大坝安全监控的重要内容，预测分析的难点之一在于渗流监测数据往往具有复杂的非线性特点。
The support vector machine based on statistical learning theory is applied to establish a time series model for simulating the monitoring data of dam seepage flow.
大坝渗流监测分析是大坝安全监控的重要内容，预测分析的难点之一在于渗流监测数据往往具有复杂的非线性特点。
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