查询词典 Pi

It is proved that these two types of fuzzy controllers are equivalent to the variable structural combinations of nonlinear PI controller and nonlinear control offset. Moreover, the outputs of these fuzzy controllers are monotonically increasing, continuous, and bounded with regard to the corresponding universe of discourse.

基于此，深入研究了模糊控制器的解析结构，并证明了这两类模糊控制器等价于一种变结构的非线性 PI 控制器与相应的非线性控制偏置之和，并且在其输入论域上是单调递增、连续且有界的。

Thirdly, the thesis has conducted the simulation research of the three-phase voltage-type PWM rectifier system, has established the simulation models of the main circuit, the space voltage vector PWM control module and PI regulator, and has carried on the simulation for the three-phase voltage PWM rectifier system.

其次，介绍三相电压型PWM整流器的控制方法，深入研究三相电压型PWM整流器的空间电压矢量脉宽调制控制方法，进行三相电压型PWM整流器的PI控制调节器的设计。

Welding control system comprises hardware and software, using C language welding program, and it reduces difficulty of control system exploitation. Scheduling control, sampling disposal of feedback signals and digital PI modulation are achieved through program control, and this controls veraciously welding process.

焊接控制系统由硬件和软件两部分组成，焊接程序采用C语言编写，降低了控制系统软件开发的难度，通过程序控制实现时序控制、反馈信号的采样处理及数字PI调节，对焊接过程进行准确的控制。

The mid-night, two villains have run vivaciously, the preparation starts to work immediately, but couldn't they how also find cut out good Pi Liao, actually had discovered two sets of attractive small clothes, they are happy, are happy dance with joy.

午夜时分，两个小人儿蹦蹦跳跳地跑了进来，准备马上开始干活儿，可他们怎么也找不到裁剪好的皮料，却发现了两套漂亮的小衣服，他们喜形于色，高兴得手舞足蹈起来。

And through small-signal model analysis, the voltage and current Central PI regulator design.

并且通过小信号模型分析，对电压电流环的PI调节器进行设计。

Application of fuzzy-PI control in the voltage regulator for inverter［J］.

模糊PI控制技术在逆变输出电压调节中的应用［J］。

The Black-faced Spoonbill is a large white wading bird with a distinctively shaped beak - looking like a spoon, or a pi pa.

黑脸琵鹭是大型涉禽，身上长满白色羽饰，鸟喙形状独特，成匙状，又似琵琶。

In a word, the Fuzzy-PI controlling method can be used in the project which is reasonable and advanced.

总的看来，具有一定的先进性和合理性，可应用于工程实践。

An algorithm based on operation times (T_0) of zero voltage space vector is presented. The d-axis current can be derived from the PI controller, whose inputs are T_0 and one constant T_0~*.

与普通弱磁方法相比，该方法有效地避免了电机参数变化对控制精度的影响，在加快动态响应速度的同时，降低定子电流的幅值。

An algorithm based on operation times (T_0) of zero voltage space vector is presented. The d-axis current can be derived from the PI controll er, whose inputs are T_0 and one constant T_0*.

与普通弱磁方法相比，该方法有效地避免了电机参数变化对控制精度的影响，在加快动态响应速度的同时，降低定子电流的幅值。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。