片语

the constant switching frequency固定的开关频率

constant-frequency contours等频线

Constant WidthConstant Frequency恒宽恒频

constant switch frequency恒定开关频率

dielectric constant-frequency介频谱

constant-frequency sampling恒频采样

constant-frequency oscillator恒定频率振蕩器

constant ratio frequency changer恒比频率变换器

unified constant-frequency定频

英汉例句

• the paper takes as an example the marine constant frequency shaft generator, which has been applied on board with notable energy-saving effect.

  文中除了对方案进行理论分析外，还引用了取得显着节能效果的船用恒频轴带发电机装置的技术性能数据，作为例证进行对比。

• a variable speed constant frequency wind power generation system of doubly-fed induction generator based on converter excitation was described.

  建立了基于变换器励磁的双馈感应电机的变速恒频风力发电功率控制系统的模型。

• in recent years, the variable speed constant frequency wind generator system is the most widely question for discussion at home and abroad, especially for doubly-fed induction.

  变速恒频风力发电系统是近年来国内外研究最广泛的课题，其中最具代表性的是绕线式转子双馈异步发电系统。

• the high power shaft alternator constant frequency systems developed by siemens is introduced, which is suitable for large container ships.

  介绍了西门子开发的大功率轴带交流发电机恒频供电装置，适用于大型集装箱船；

• the measurement is carried out at different temperatures (from 10 to 60℃) and concentrations (from 12 to 70%) by an ultrasonic interferometer of constant frequency at 1 mhz.

  测量是采用超声干涉仪，频率固定在1兆赫，在不同温度（10—60℃）和不同粒子体积浓度（12—70％）的情况下进行的；

• the constant frequency hysteresis is adopted to keep switching frequency stable and improve the hysteretic control.

  为了克服滞环控制的不足，串联侧采用恒频滞环来保持开关频率的稳定。

• in this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents.

  本文以永磁同步电动机为研究对象，分别对同步电动机的点动控制、恒频控制以及升降频控制进行了分析与研究，研究中采用了电流滞环控制方法，可有效地限制过电流现象；

• this paper deals in detail with the design of feedback control system for variable speed constant frequency electrical power.

  本文讨论了变速恒频电源闭环控制电路的设计。

• compared with developed countries, china still has more gaps in large-scale wind turbine, variable pitch control and variable speed constant frequency wind power.

  与发达国家相比，我国在风力机的大型化、变桨距控制、变速恒频等先进风电技术的研究方面还存在较大的差距。

• on constant frequency ratio, loading ratio has an importance influence on the initiation and propagation of fatigue crack under double frequency complex loading.

  在频率比确定的条件下，载荷比是影响双频疲劳裂纹萌生及扩展的一个重要因素。

• a buck dc dc converter operating in continuous conduction mode, whose output voltage is controlled by naturally sampled, constant frequency pwm, is studied.

  对工作在电感电流连续模式下的pwm型降压式dc-dc变换器进行了研究，采用连续采样、恒频的pwm控制环调节dc-dc变换器的输出电压。

• variable speed constant frequency generating system has been used in modern aircraft.

  变速恒频电源系统已在现代飞机上使用。

• based on the introduction of components and principle of work of frequency modulation system of constant frequency ac power supply, math model of frequency modulation system is established.

  在介绍某型恒频交流电源频率调节系统的组成和工作原理的基础上，建立频率调节系统的数学模型。

• to get constant voltage and constant frequency energy that users need, the software and hardware of the inverter control system is designed.

  由于永磁直驱风力发电系统所发出的电能为电压和频率的交流电，为得到恒压恒频的电能，本文进行了逆变控制系统的软硬件设计。

• the circuit used in stepping motor control system which combines the merit of frequency - voltage conversion with constant frequency pwm and high - low voltage driving are introduced in this paper.

  在步进电机控制系统中，采用调频调压与恒频脉沖调宽及高低压驱动相结合的连续细分驱动电路方法。

• the decoupled control of active power and reactive power is a key technology of variable speed constant frequency (vscf) wind energy generation system.

  双馈发电机的有功和无功功率的解耦控制是变速恒频（vscf）风力发电系统的关键技术。

• this article is about the research of space control in the variable speed constant frequency wind energy conversion system.

  本文主要研究了变速恒频双馈风力发电系统中的矢量控制。

• mw variable speed constant frequency wind turbine from shenyang university of technology is a variable pitch wind turbine, it can change pitch to adjust power above rated wind speed.

  由沈阳工业大学研制的mw级变速恒频风电机组属于变桨距型机组，它在额定风速以上进行变桨距调功控制。

• the paper expounds the advantages of the generator system and the principle of constant frequency and constant voltage.

  文中叙述了发电机系统的优点和恒频稳压原理；

• a disk-type pm synchronous generator which is used in the direct driven variable speed constant frequency wind energy sys- tem, is presented and its principle and electromagnetism design are analysed.

  提出了一种用于直驱式变速恒频风力发电系统的盘式永磁同步发电机，对其运行原理和电磁设计进行了分析和推导。

• twin stator brushless doubly fed machine generation system which has no electrical brush and can running in variable speed and constant frequency condition is very suitable for wind power generation.

  双定子无刷双馈发电机具有无刷化和可进行变速恒频发电的特点，非常适合于风力发电系统，对其发电系统的研究，将使这种新型电机能够尽快地应用于实际之中。

• it can make a synchronous machine to generate an ac power with constant frequency and constant power, the power quality is better and the power of matching convertor is lower than the generator.

  它能够使用普通同步发电机发出恒频恒功率交流电，电能质量更好，所使用的变换器功率低于发电机功率。

• we design a suit of aviation ac excitation generator system , it insures the output voltage is constant frequency and constant voltage.

  我们设计了一套航空用交流励磁发电机系统，以保证输出电压恒频恒压。

• this paper presents the design of thyristor triggering circuit for a variable speed constant frequency (vscf) wave energy electricity generating system.

  介绍了变速恒频波浪能发电系统的晶闸管触发电路设计。

• the paper mainly put forward a new control method of stepping motor which character-, ized by equal-stepped fine division, and then design a constant frequency pwm driver circuit.

  提出一种等步距角的细分控制方法，并据此设计了恒频脉宽调制细分电路。