reference vector

The vector control mathematical model of linear induction motor is established under the synchronization reference frame.

在同步旋转坐标系下,建立了直线感应电动机的矢量控制数学模型.

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On the other hand, the mixed modulation algorithm uses the five-segment modulation algorithm and the characteristic quadrangle to approximate the reference vector which can reduce the switching frequency. Finally, a three-cell seven-level inverters experiment platform is set up.

另一方面，混合调制算法利用特征四边形法和五段算法逼近参考矢量减少了开关切换频率。

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The reference vector corresponding to basic vector and its role time under linear modulation mode is decided. As well as redundant switches are optimization selected by extreme value method to reduce the switching frequency.

确定了线性调制模式下参考矢量所对应的基本矢量及其作用时间；并提出了极值法对冗余开关状态进行优化选择以降低开关频率。

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Model reference fuzzy control ( MRFC) is introduced for a classical thrust vector electrohydraulic servo control system.

针对典型的推力矢量电液位置伺服系统提出参考模型模糊控制控制方法（MRFC）。

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A new space vector modulation method based on reference voltage decomposition for multilevel VSI

基于参考电压分解的新型多电平逆变器空间矢量调制方法

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The simulation results meet the requirements of the electric spindle control system and verify vector control system of accurateness and feasibility, so the system provide a reference for design asynchronous electric spindle drive control system.

仿真结果说明了该控制系统满足对电主轴控制系统的要求，也验证了所建立的矢量控制系统的正确性和可行性，这样就为异步电主轴的驱动控制系统的设计提供了参考依据。

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In this paper, model reference robust control ( MRRC) is introduced for a classical thrust vector electrohydraulic servo control system with parameter disturbance and additive uncertainty, which makes it possible for the system to be insensitive to the disturbance and uncertainty.

本文针对典型的推力矢量电液位置伺服系统中存在的参数摄动和加性扰动，采用模型参考鲁棒控制方法（MRRC），使系统对扰动不敏感。

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Therefore generator terminal voltage vector is selected as quasi-synchronous reference axis relative to rotor, and the generator model in two reference frames is established.

故选择机端电压矢量作为转子准同步参考轴，建立了基于单机二系坐标的发电机模型。

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Vector-based RNA interference took on time-dependent effect in mammalian cell, which also provides a certain theoretical reference for the application of RNAi.

基于载体表达的RNAi作用呈现明显的时间依赖性效应，为RNAi应用研究提供了一定的参考及借鉴价值。

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Study on model reference robust control of thrust vector control system

推力矢量控制系统的参考模型鲁棒控制研究

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This paper has investigated the expression on rotational motion of earth's surface and Earth's deformation fields with complex vector surface spherical harmonic function, theoretical definition of the crust-fixed reference frames and the terrestrial reference system, and theoretical substantiating to the consistency between them.

本文研究了内核地球模型下的地球表面的旋转运动和地球形变场的复数矢量球函数表示，以及外壳固定参考架、地球参考系的理论定义和它们之间等价性的理论证明。

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