控制矢量

The main works include five parts:(1) A modified K-means algorithm for optimizing the RBPNNs' structures was proposed;(2) The RBPNNs' structure optimization method based on the orthogonal least square algorithm was proposed that can greatly reduce the computation expense for the structure optimization;(3) Using the GA to perform the whole structure optimization of the RBPNNs was proposed in this thesis, which include simultaneous optimization of the hidden centers and the corresponding controlling parameters of the kernel functions.

主要工作体现在如下三个方面：(1)提出一种改进的 K-Means 算法；(2)提出了基于递推正交最小二乘算法的结构优化算法来训练径向基概率神经网络，从而大大减小了用于结构优化的计算开销；(3)提出使用遗传算法来实现径向基概率神经网络的全结构优化，即隐中心矢量和核函数控制参数同时优化，通过新设计的编码方式、新构造的适应度函数，充分发挥了 GA 的全局搜索性能，使得所优化的径向基概率神经网络的结构趋于最简。

Fourth, the thesis investigates the path tracking from state space description viewpoints.

第四，基于状态矢量空间描述来分析路径跟踪控制。

However, this system often has a large overshoot and/or an oscillated response caused by both a windup phenomenon and phase error on the vector control condition.

然而，这一制度往往有一个大的超调及/或一个振荡反应所造成的，既是结束现象相位误差对矢量控制的情况。

The five phase space vector modulation optimization technique is presented.

本文通过深入探讨三相TSMC控制算法，在此基础上将相关理论推广应用到五相MC的实现，并根据推广改进的五相park变换，提出了五相空间矢量调制的优化技术。

The magnitude and phase of the composed balancing vector are adjusted by means of controlling difference frequency of current in inner stator windings.

通过控制内定子绕组电流频差信号以实现对平衡矢量幅值与相位的在线调节。

A compound hydraulic system with variable frequency control, a throttle and variable displacement speed control was established. Using AMESim software, the vector control three phase asynchronous motor simulation model was established based on the analysis of the principle of three phase asynchronous motor simulation.

本文将节流调速和变频液压技术有机地结合起来，以解决变频液压容积调速在大惯量、低转速、变负载系统中的应用问题，利用AMESim软件建立了矢量控制的变频液压容积节流调速系统仿真模型，并对该系统进行了性能仿真。

Instead of using a polarimeter recommended in G.650,we use a polarizer controlled by a step up motor to measure Jones optic Vector in this system,which is much cheaper.

该测量系统利用光功率计和步进电机控制的偏振片测量输出光的琼斯矢量，代替了G 。6 5 0琼斯矩阵特征值法中所建议使用的偏振计，降低了PMD测量系统的成本，并实现了自动测量

A novel approach to position sensorless vector control system of permanent magnet synchronous motor based on active disturbance rejection controller is presented in this paper.

利用自抗扰控制器理论，提出一种新颖的永磁同步电动机无位置传感器矢量控制系统。

MATLAB simulation results show that the instantaneous symmetrical components detect the positive sequence voltage component accurately ,the result of current tracking of the space vector control is good.

MATLAB仿真结果表明，改进的瞬时对称分量法准确的检测出了a相电压正序分量，空间矢量控制电流跟踪效果良好。

Utilizing parameters adjust arithmetic of positive and real error transfer function the paper designs a rotor flux adaptive observation.

运用MATLAB的工具软件SIMULINK对转矩的磁通闭环的矢量控制系统进行仿真分析，给出了仿真结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。