变速恒频,variable speed constant frequency
1)variable speed constant frequency变速恒频
1.Adjustable pitch intelligent control ofvariable speed constant frequency wind generation system;变速恒频风力发电系统变桨距智能控制
2.DTC control of doubly-fedvariable speed constant frequency wind turbine;双馈变速恒频风电机组直接转矩控制
parison and simulation of maximal power point tracking (MPPT) method invariable speed constant frequency doubly-fed wind power generation systems;变速恒频双馈风力发电系统最大功率跟踪算法的比较与仿真研究
英文短句/例句
1.Grid-connected Dynamic Simulation and Analysis on Wind Generation System of CSCF and VSCF;恒速恒频及变速恒频风力发电系统并网动态仿真分析
2.Frequency Control Strategy of Variable-speed Constant-frequency Doubly-fed Induction Generator Wind Turbines变速恒频双馈风电机组频率控制策略
3.Rotating Speed Control of Variable Speed Constant Frequency Wind Turbines Using Double-Fed Induction Generator;变速恒频双馈风力发电系统转速控制
4.Investigation of the Converter Technology for a Variable-Speed Constant-Frequency Wind Energy Generation System with Doubly-Fed Induction Generator;变速恒频双馈风力发电机变频技术的研究
5.DTC control of doubly-fed variable speed constant frequency wind turbine双馈变速恒频风电机组直接转矩控制
6.The Study on the Power Decoupling of the Variable Speed Constant Frequency in Induction Generator System;变速恒频双馈发电系统解耦控制研究
7.The Mathematic Model and Simulation to VSCF Wind Generation System;变速恒频风力发电系统的建模和仿真
8.VSCF Doubly Fed Wind Power Generation Imitation Supervisory System;变速恒频双馈风力发电模拟监测系统
9.The Study of Variable Velocity Constant Frequency System of Wind Electric Power Generations;风力发电机组变速恒频控制系统研究
10.RESEARCH OF THE CONTROLLER FOR 60KVA VSCF AIRCRAFT ELECTRIC POWER SUPPLY SYSTEM;60KVA变速恒频电源系统控制器研究
11.Research on Control for VSCF Doubly Fed Wind Power Generation System变速恒频双馈风力发电系统控制研究
12.Research on Operation Characteristics of Direct Drive Vscf Wind Turbine直驱变速恒频风电机组运行特性研究
13.DSP-based VSCF Wind Power Research基于DSP的风力发电变速恒频的研究
14.Load Cutting-in Control of Variable-Speed Constant-Freqency (VSCF) Wind-Power Generator变速恒频双馈风力发电负载并网控制
15.Study of Variable Speed and Constant Frequency System of Wind Electric Power Generations双馈风电机组变速恒频控制方法研究
16.Flexible Grid-connection Control Strategy for VSCF Wind Power Generation变速恒频双馈风力发电柔性并网控制
17.Steady characteristic of variable-speed constant-frequency direct-driven wind-turbine直驱型变速恒频风力发电机稳态特性
18.Speed mode control of variable-speed constant-frequency wind energy generation system with double fed induction generator变速恒频双馈风力发电系统的速度模式控制
相关短句/例句
VSCF变速恒频
1.STUDY ON THE CONTROL STRATEGY OFVSCF GRIDE-SIDE CONVERTER UNDER UNBALANCED GRID;变速恒频风电机组网侧变换器在电网电压不平衡时控制策略的研究
2.Study on Maximum Power Extraction Control forVSCF with Doubly Fed Machine;变速恒频风力发电最大风能控制策略的研究
3.The Design and Simulation about the Closed-Loop Control Technology ofVSCF Power System;变速恒频电源闭环控制系统的设计与仿真
3)variable-speed constant-frequency变速恒频
1.Design and test study on excitation control system forvariable-speed constant-frequency wind power generator with double feedback function;变速恒频双馈风力发电机的励磁控制系统设计及试验研究
2.Study on vector control model ofvariable-speed constant-frequency double-fed wind generator;双馈型变速恒频风力发电机矢量控制模型的研究
3.Disturbance free cut-in/out control strategies forvariable-speed constant-frequency wind power;变速恒频风力发电机组无扰投切控制技术
4)variable speed constant frequency(VSCF)变速恒频
1.The Direct-Driven variable speed constant frequency(VSCF) wind generation system takes low speed PM generator as the generator,and it has the advantage of no gearbox,low mechanical loss,high efficiency,low maintenance cost.直驱型变速恒频风力发电系统采用低速永磁同步发电机结构,无需齿轮箱,机械损耗小,运行效率高,维护成本低。
2.In the tidal power generation system based on doubly-fed motor,the frequency,amplitude,phase and phase sequence of exciting current in the rotor winding are adjusted to achieve the variable speed constant frequency(VSCF) control strategy.基于双馈电机的潮流发电系统是通过调节转子绕组中励磁电流的频率、幅值、相位和相序来实现变速恒频(VSCF)控制的。
3.The characteristics of wind turbine generators as well as features of the fixed pitch wind turbine generator and the variable pitch wind turbine generator are presented,emphasizing on the variable speed constant frequency(VSCF) generating system based on doubly-fed generators and on the control system for pitch angles.在简述风力机特性的基础上,介绍了定桨距和变桨距发电机组的特点,重点分析了基于双馈发电机的变速恒频发电系统及桨叶节距角控制系统。
5)variable speed constant frequency (VSCF)变速恒频
1.The Direct-driven variable speed constant frequency (VSCF) wind generation system takes low speed PM generator as the generator ,and it has the advantage of no gearbox ,low mechanical loss, high efficiency, low maintenance cost.直驱式变速恒频风力发电系统由于其采用低速永磁同步发电机结构,系统无需齿轮箱,具有机械损耗小,运行效率高,维护成本低等优点而受到了越来越多的关注。
2.In order to make full use of wind energy andenhance generating efficiency and quality in the wind power generating system, applying directtorque control (DTC) strategy to variable speed constant frequency (VSCF) wind power generatingsystem has been studied in this paper.为了充分利用风能，提高风电系统的发电效率和发电质量，本文对直接转矩控制策略在变速恒频风电系统中的应用进行了研究。
3.The wind power resource is the most rapidly developing renewable power in recent years; the Variable Speed Constant Frequency (VSCF) wind generation technology becomes the main trend of nowadays wind power generation technology for its advantages of high efficiency and small volume of conv.风电资源是近年来发展最快的可再生能源,采用无刷双馈电机的变速恒频风力发电技术,以其效率高、所需变频器容量小等特点成为当今风力发电技术的主流。
6)variable speed constant frequency(VSCF)变速恒频(VSCF)
延伸阅读
恒显圈与恒隐圈地球上不同纬度地区能看到的星座是不一样的。对于某一点，有些星座永远也看不到的；反过来呢，有些星座在那儿一年四季都看得见。对于一个地方来说，到底哪些星座看不到呢？这里有一个小窍门，假设一个地点的纬度是φ，那么赤纬小于-（90°-φ）的天体在这里就永远看不到。反之，凡是赤纬大于（90°-φ）的天体，在这里就总能看到。因此，在天文学上，赤纬（90°-φ）称之这一地区的“恒显圈”，而赤纬-（90°-φ）叫做该地区的“恒隐圈”。比如在北京，赤纬50°就是北京地区的“恒显圈”，位于赤纬50°以上的星星老是在天上，永远也不会落到地平线以下去。而赤纬-50°叫做北京地区的“恒隐圈”，位于赤纬-50°经南的星星北京永远也看不到。而在赤道上（纬度为0°），即使赤纬是 90°和-90°的天体也能看到，也就是说，赤道上没有“恒隐圈”，在赤道上各个位置的天体都能看得见。反之，在地球的南北极，则始终只能看到半个天空，另一半天空永远看不到，这两处拥有地球上最大的“恒隐圈”。
