调速

The applied range of the system of control of design method frequency control of system of control of 1 frequency control is very wide, wait like rolling mill, windlass, paper machine.

梗概： 1变频调速控制系统的设计方法变频调速控制系统的应用范围很广，如轧钢机、卷扬机、造纸机等。

for carrying out a small physical volume and high reliability of the motor driving and control,by using hip4081 chip and aln hybrid integrated technology,a hybrid integrated technology h bridge circuit based on hip4081 is designed to control bidirectional circumrotation and speed regulation of the motor.by practical application,the bidirectional circumrotation/speed adjustment of motor are realized safely and reliably.the products has a small physical volume,fast heat transmission,high efficiency and can operate properly in severe environment.it can enhance the reliability of the drive circuit and the system,and adapt to both military and commercial usage.

摘 要：为了实现小体积、高可靠的电机驱动与控制，利用hip4081专用芯片和aln厚膜混合集成技术，设计一种基于hip4081的厚膜h桥电机驱动电路，完成了h桥式驱动电路对电机双向转动和调速的控制。经实际应用，该电路不仅安全可靠地实现了电机的双向转动和调速功能，且产品体积小，导热性能好，效率高；还能在恶劣的使用环境下安全工作，提高了驱动电路和系统的可靠性，适合军、民两用。

By real time testing dand adjusting the motor's velocity/current, this timing system can get quick and exact timing result.

通过实时测试与调节电动机的转速/电流，此调速系统可获得快速、精确的调速效果。

In hydroelectrical simulation the key model is that of hydroturbine governor.

水电仿真中关键的模型是水机调速器模型，针对水电仿真系统中的调速器非线性数学模型问题进行分析。

In this section, we take ICMMS-based Hydroturbine Governor as an example, make some researches on Intelligent Reference Model, reliability and control of operating mode transition for Pumped-Storage Unit.

在此部分，我们以水轮机调速器为研究对象，对其ICMMS系统的智能单元参考模型、可靠性以及抽水蓄能机组调速器的工况转换控制问题进行了研究。

And mainly introduced the neural-network theory. The neural-network basded intelligent control for hydroturbine governor is studied.

并将神经网络理论引入水轮机调速器的研究探索之中，对基于神经网络的水轮机调速器进行了初步研究，仿真表明其效果较好。

Hydroturbine governor is one of the important controlling devices in the hydro power plant, and its performance exerts important influence on the quality of electric energy and the operational reliablity of the hydro power plant.lt is an active subject to research some technology and selection for hydroturbine governor.

水轮机调速器是水电厂的重要控制设备，其性能的好坏直接影响着电能品质和水电厂的安全经济运行，对水轮机调速器的若干技术及选型进行研究，具有十分重要的现实意义。

The selection and design for hydroturbine governor of the Three Gorges Project Units are presented. At last, the authour gives a summary of the whlole thesis and some suggestion about hydroturbine governor.

综合利用上述研究成果，提出了水轮机调速器的选型原则，并结合三峡电厂实际，对三峡电厂的水轮机调速器进行了选型设计。

The cascade speed regulation for AC motor can effectively and economically utilize the slip power of wound rotor asynchronous moter to regulate the speed.

交流电动机的串级调速是一种将绕线式异步电动机的转差功率利用起来的一种高效、济的调速方法。

Discussing the way to develop the nonlinear mathematic model of the governor in the hydroelectrical simulation system and improve it, the phased analyzing/fitting method is introduced in modeling process to deduce the mathematical models of governor start-up and load rejection so as to solve the problems of overspeed starting and nonconvergent vibration during load rejection.

在建模过程中采用分段解析、拟和的方法，推导出了水电仿真中水机调速器开机和甩负荷过程数学模型，解决水机调速器中开机过速和甩负荷过程中振荡不收敛问题。

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。