查询词典 AC

Firstly, this thesis makes an introduces on the developement of PMSM servo system based on DSP. According to the control theory of AC PMSM servo system, this paper analyzes the coordinate transformation, the rotor magnetic field orientation and the current control strategy of AC servo system. The control strategy is i_d=0. The system is orientates towards rotor magnetic field. Then the mathmatic models of PMSM in d-q coordinate are set up.

本文首先对基于DSP的永磁同步电机伺服系统的发展概况进行了介绍；根据永磁同步交流伺服系统的基本控制理论，分析了交流伺服系统坐标变换原理、常用的磁场定向方式及电流控制策略，并给出i_d=0电流控制策略及永磁同步电机按转子磁场定向的控制方式，从而建立永磁同步电机d-q坐标系下的数学模型。

By means of simulation the capacity of the SVC is decided while following factors, such as restraining transient voltage fluctuation of converter bus, increasing the capacity of sectionalized banks of AC filter/capacitor and improving the stability of both AC and HVDC systems at China side, are taken into account.

从抑制换流母线暂态电压波动、提高交流滤波器/电容器分组容量及提高换流站中国侧交直流系统稳定性的角度考虑，通过仿真确定了换流站装设SVC的容量。

Let's give him 8,000 ac raw, and even assume he has 5 sunders stacked, for 5750 final ac, so he will take 48.89% of damage.

假设你在tank一个62级的怪，它有8000护甲，并且有5个破甲效果，然后实际为5750的护甲，因此他将受到48.89%的伤害。

Suppose you are tanking a level 62 mob. Let's give him 8,000 ac raw, and even assume he has 5 sunders stacked, for 5750 final ac, so he will take 48.89% of damage.

假设你在tank一个62级的怪，它有8000护甲，并且有5个破甲效果，就是5750的护甲，那么他将受到48.89%的伤害。

Let's give him 8,000 ac raw, and even assume he has 5 sunders stacked, for 5750 final ac, so he will take 48.89% of damage.

15%的致命一击率并受到防御姿态10%的伤害调整，以及10%的格挡率格挡50%伤害。

Considering the inconvenience of regulation and difficulty of parameter tunning as AC servo system in practical situation, three ways of intelligent control approach to realize auto-tuning and autorecognization of AC servo system, are proposed, which is a robust controller based on two-degrees-offreedom with no tuning to controller, a auto-tuning controller based on fuzzy reasoning with no inertia recognization but tuning parameter of controller, a strategy recognizing inertia of servo system and tuning parameter or structure of controller automatically. In the same time, these control strategies are analyzed from the theory and reliability. The comparative analysis of three measures on strong and weak points is made by simulation and experiment results.

针对交流伺服系统在实际应用中存在的系统调试不便、参数调整困难等问题，提出了实现交流伺服系统自调整和自识别等智能化控制策略的三条途径：一是具有控制器无调整特点的二自由度鲁棒性控制器；二是惯量无识别但需自动调整控制器参数的模糊推理自调整控制器，三是自动识别伺服系统转动惯量并自动调整控制器参数和结构的方案，从理论分析和可实现性两方面对这些控制方案进行了论述，并通过仿真和实验研究，对比分析了各种方案的优缺点，得到了一些有益的结果。

In power converters, unbalances generate undesirable DC ripple and non char ac teristical harmonics in the ac side.

在电力变换器中，不平衡会产生不希望的直流波动以及交流侧无特征的谐波。

The company already has strong manufacturing capabilities and improve the detection equipment and instruments, has introduced products that have BX1, BX3, BX6 Series AC arc welding machine, ZXE1 Series AC-DC dual-use arc welding machine, WS series of manual TIG welding machines directly, LGK8 series plasma cutting machine, NBC series of carbon dioxide gas shielded welder, ZX5 Series Thyristor rectifier arc welder, ZX6 series three-phase rectifier arc welding machine, Products exquisite workmanship, excellent performance, reasonable structure, novel modeling and at the same time, the company invested in the continuing strength in science and technology and the use of foreign technology to market.

公司已具有雄厚的制造能力和完善的检测设备及手段，先后推出的产品有BX1、BX3、BX6系列交流弧焊接机，ZXE1系列交直流两用弧焊机，WS系列手工直接钨极氩弧焊机，LGK8系列等离子切割机，NBC系列二氧化碳气体保护焊机，ZX5系列晶闸管整流弧焊机，ZX6系列三相整流弧焊机，产品工艺精湛，性能优良，结构合理，造型新颖，同时，公司在不断的投入科技力量，并采用国外技术将产品投放市场。

Now has 176 employees who are to develop and produce a professional CD, CBB capacitor series products, the main products are AC motor running CBB60/CBB61/CBB65 capacitance / CD60 AC motor start capacitor.

现拥有职工176人，是一家专业研制生产CD，CBB电容系列产品的公司，主要产品有CBB60／CBB61／CBB65交流电动机运转电容／CD60交流电动机启动电容器。

Based on low frequency drive system of the DPB550/150 Ⅱ type an intelligent control strategy applied to the speed control of AC mine hoist is described and a satisfactory control performance is obtained. Some problems, such as unsatisfactory control performance of AC coal mine hoist in deceleration and low speed drive period, and the difficulty of obtaining the constant deceleration during changing load, are solved.

以DPB－550／150－I型中国矿业大学低频拖动系统为基础，应用智能控制策略，实现了交流提升机的速度控制，得到了较好的恒减速控制性能，解决了矿井交流提升机在减速段和爬行段的速度控制性能较差以及在负载变动时，很难实现恒减速的问题。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。