控制理论

Beginning from the electromotor common control theory, this paper discuss basic concept of AC motor with vector control.

以电动机统一控制理论为切入点，论述了交流电动机矢量控制基本概念。

Since the 1950s, as the era of progress, whether in theory or in the control of the development and practical application of electronic devices, have made considerable progress, these results further promote the exciter control technology development.

自50年代以来，随着时代的进步，不论是在控制理论还是在电子器件的研制和实际应用方面，均取得长足的进展，这些成果进一步促进了励磁控制技术的发展。

Base on the finite element methods, this paper makes research on construction process and dynamic optimal control of deep excavation from the points of controllability, observation and stability. The main work may be summarized as follows

本文从现代控制理论的可控性、可观性和稳定性角度出发，对深基坑支护体系进行了基于有限元分析的施工过程和动态优化控制研究，所作主要工作如下

Stability is an important performance of a system and the theory of stability is the focus of the research of control theory.

稳定性是系统的重要性能，稳定性理论是控制理论的研究核心。

The project combine the NN model consult self adapt modern intelligent control theory and current digital technology and apply this theory to follow adjust the moment of electromotor, which correspond control the moment of many electromotor. Inc a mainframe (adopt speed and current both closed loop system), seven frae electromotor (adopt NN model consult self adapt adjuster).

将神经网络模型参考自适应现代智能控制理论与当前的数字技术相结合应用于电机的力矩跟随调节，协调控制多台电机的力矩，包括：一台主机(采用速度、电流双闭环系统)，七台从机(采用神经网络模型参考自适应调节器)。

On the basis of ripe operating experience,fuzzy control theory was used to design the fuzzy controller to constant horse-power, and the constant horse-power control of spring cone crusher was realized.

依据成熟的操作经验，运用模糊控制理论设计完成弹簧圆锥破碎机恒功率模糊控制器，实现了弹簧圆锥破碎机的恒功率控制。

The advantage and defect of PID in engine control is analyzed.

本文分析了传统的PID控制理论在发动机控制中的优缺点。

In precise control theory, robust control is an efficient solution to overcome the inaccuracy of models.

精确控制理论中的鲁棒控制是解决对象数学模型不准确问题的有效方法之一。

To deal with the second type of variable speed system, a method which combines sliding mode decoupling control theory and Phase-Locked Loop technique is firstly applied to the induction motor's variable speed control.

针对第二类系统，本论文首次提出了将滑动模解耦控制理论与锁相环技术相结合的方案，应用于感应电机的调速控制系统。

However, the intelligent control programs raised by now are mainly based on expert system and uncertain inference, and pattern recognition hasn't been fully realized as an effective means to obtain knowledge in the field of complex production process.

现代控制理论的丰硕成果虽然在航空、航天领域取得了成功的实际应用，但在过程控制中却收效甚微。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。