1) variable-frequency constant water level
变频恒水位
1.
of water supply system with variable-frequency constant water level.
结合云铜供排水车间循环系统改造的实例,对变频恒水位供水系统的控制方式、系统的设计及节能效果等进行了论述。
2) the surge less equipment with scuttles and various frequencies
变频恒压供水
1.
Application of the surge less equipment with scuttles and various frequencies in secondary pressed water supply;
在二次加压供水中采用无吸程变频恒压供水设备 ,既能利用自来水管道的原有压力 ,又能利用足够的储存水量缓解高峰用水 ,不会对自来水管道产生吸力 ,达到节能效果。
3) Inverter constant pressure water supply
变频器恒压供水
4) variable speed constant frequency
变速恒频
1.
Adjustable pitch intelligent control of variable 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-fed variable speed constant frequency wind turbine;
双馈变速恒频风电机组直接转矩控制
3.
Comparison and simulation of maximal power point tracking (MPPT) method in variable 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
5) variable-speed constant-frequency
变速恒频
1.
Design and test study on excitation control system for variable-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 of variable-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 for variable-speed constant-frequency wind power;
变速恒频风力发电机组无扰投切控制技术
6) 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。
补充资料：地下水水位观测(见水位观测)
地下水水位观测(见水位观测)
d ixiashui shuiwei guanee地下水水位观测见水位观测。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条