补偿器

The effect of this modeling method is proved by appling it to the analysis of a fly-back ZCS-QRC. The result show that the proposed method can give important physical insight of the relationship between the compensator and the controlled plant.

为了实际验证这种模型化方法在分析设计上的有效性，本文以一返驰式直流—直流转换器为例予以详细分析，并配合MATLAB的模拟，结果证明这种模型化方法不仅能够简化具有多重回授的转换器分析，并且对补偿器与转换器性能间关系的了解有所助益。

In this article two functional modes of the Fly-back Converter (Continuous Conduct Mode and Discontinuous Conduct Mode) are particularly analyzed, which include their characteristics, applications, the critical pattern of two functional modes is argued, both the exact boundary from the angle of circuit parameters is crystallized, at the same time, basic principle of PFC under the DCM mode is introduced, which settle theoretical basis for the subsequent design; by establishing the mathematic model of the converter, a further investigation of the configuration is made, qualitatively and quantitatively, analyzed to settle exactly theoretical basis for the subsequent emulation and the experimental parameter; from the angle of steady-state analysis, the transfer function of the system is deduced to establish dynamic small-signal state equation, emulating the system with the help of matlab, then according to the simulation result and the theory of PFC revise the system, lastly, we adopt the project which add a zero-pole compensator to the voltage loop, by this way, a satisfied system performance is gained and the PFC scheme is ensured successfully; finally, based on the previously-done work, we combining with the situation of specific design requirement, acquired the numerical value of each unit devices in this converter

详细分析了反激式变换器的两种工作状态，连续模式(Continuous Conduct Mode ，简称CCM)和断续模式(Discontinuous Conduct Mode，简称DCM)以及各自的特点、应用场合，论证了两种工作状态的临界模式，从电路参数的角度明确了二者的界限，同时还介绍了DCM模式下PFC的基本原理，为后面的设计奠定理论基础；通过对整个变换器系统建立准确的数学模型，对此变换器的电路结构做了进一步的研究，定性、定量地分析了变换器各部分的工作状态，为仿真和实验参数的确定以及电路参数的优化提供理论依据；从稳态分析的角度，为系统建立了动态小信号状态方程并推导出系统的传递函数，利用matlab对系统进行仿真，进而根据仿真结果以及PFC的相关理论对系统进行校正，采用在电压环加入零点—极点补偿器的设计方案，得到了满意的系统特性并且保证了PFC的顺利实现；最后，在前面所做工作的基础上，结合设计要求计算出此变换器系统中每个元器件的数值，利用Pspice对其进行了仿真、优化，然后根据仿真结果搭建了硬件电路。

Then the voltage source type matrix converter mathematics model is established each in 3-phase static and circumrotate coordinate system, moreover by open-loop simulation, the simulation results show that the voltage source type matrix converter can realize the frequency range very broad sine wave input-output, moreover by regulating circuit parameter, the power factor in input side reaches 1 approximately, realization static VAR compensator function.

然后分别建立了电压源型矩阵变换器在三相坐标系和旋转坐标系下的数学模型，并且对电压源型矩阵变换器进行开环仿真，仿真的结果表明电压源型矩阵变换器能够实现频率范围很广的正弦波输入输出，而且通过调整电路参数使得输入侧的功率因数约为1，实现静止无功补偿器的功能。

Through studying on the four kinds of pressure compensation containers,we select the precharge pressure accumulator as the pressure compensation containers of sampler.

通过对四种压力补偿装置的研究，选择了预充压力蓄能器作为取样器的压力补偿器。

The invention ensures that the SVC can not only complete the unbalanced load equalization compensation but also control the stabilization, thereby raising the precision of the susceptance computation of the SVC, guaranteeing the balance compensation of the charge, improving the performance in the stabilization control of the SVC voltage and maintaining the voltage stabilization of a common connection joint.

本发明能让其中SVC既能进行不平衡负荷平衡化补偿，又能对稳定控制，提高了静止无功补偿器电纳计算的精度，确保负荷的平衡补偿，改善了SVC电压稳定控制时的性能，维持公共连接点的电压稳定，具有较高的鲁棒性和响应速度。

CNC rotary tables' moving distance has a strong connection with the angle. The angle changes on 2D with B, C axis so it can't make compensation by cross-couple controller in each axle.

在数控双轴分度盘所移动距离与角度有直接之关联性，然B、C轴为个别在二维面上之角度改变，故各轴无法使用交叉耦合控制器进行补偿，将个别设计一补偿器控制架构进行补偿。

Compensation null test is a very important method in testing aspheric surface with high accuracy.

补偿法是高精度光学非球面检测的一种主要方法，本文针对补偿法检测非球面时必需解决的几个关键技术进行了研究，为高精度补偿器的设计与研制成功提供了有力的技术支持。

Based on analysis of the features of three-phase four-line power supply system and nonliear load current harmonic pollution,compensation method of simultaneously compensating voltage sag and synthetic power quality of load low-voltage of harmonic current was proposed,and corresonding hybrid unified power quality compensator was also designed.

通过对三相四线制供电系统的特点和非线性负载电流谐波污染分析，提出了可同时补偿电压跌落、谐波电流的负载端低压综合电能质量补偿方法，并设计了对应的混合型低压电能质量综合补偿器。

Describes a sleeve type compensator-the self balancing compensator, which can be used in heating network s to eliminate the blind flange force on primary fixing trestles.

介绍了一种套筒型补偿器———自平衡补偿器，它可用在热力管网中消除主固定支架的盲板力。

Issued the merger, is specialized in the first, second-class pressure vessel, steam turbine exhaust piping, metal bellows compensator, non-metallic compensator, stainless steel metal hose, spring hanger sticks, throttle, electric power machinery, food processing machinery, petrochemical machinery, environmental protection machinery, such as product design, manufacturers.

江苏福克斯机械有限公司位于江苏省南通市海安开发区，由江苏科星机械有限公司和海安泉发压力容器制造有限公司合并而成，是专业从事第一、二类压力容器、汽轮机排汽管道、金属波纹补偿器、非金属补偿器、不锈钢金属软管、弹簧支吊架、风门、电力机械、粮食机械、石化机械、环保机械等产品的设计、制造厂家。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。