The motors are designed for variable frequency drive.
电机变频驱动设计。
Digital variable frequency is a key technology of soft radio.
数字下变频技术是软件无线电中的关键技术之一。
The variable frequency AC controller mounts directly on the AC motor.
变频空调控制器直接安装在交流电机。
The flux compensation research of variable frequency hydraulic compound control system.
变频驱动液压复合控制系统的流量补偿研究。
So, NIRVANA can say is the only true sense have speed of variable frequency drive screw air compressor.
所以，NIRVANA可以说是目前惟一真正意义上拥有调速变频驱动的螺杆空压机。
By using the special control algorithm of variable frequency drive system, the above said problem is solved.
设计了基于变频驱动系统的专用控制算法来解决“倒发电”问题。
Secondly, the paper designs and realizes the two level variable frequency heating power supply with line of 380V.
随后，本文给出了380V电源供电的二电平变频加热电源的主电路和控制电路的设计与实现。
The author has developed a dissipation factor measuring system using the variable frequency series resonant voltage.
本文研制了一套在调频串联谐振电压下进行介质损耗因数测量的系统。
The experiments of load manifest that the test sample of variable frequency drive for SPCP has good driving capability.
试验样机的带载试验表明，潜油螺杆泵变频驱动装置试验效果良好，性能达到了设计要求。
Variable frequency and variable speed motor system is of high intelligence, high reliability, fault-tolerant capability.
变频调速电动机系统具有高智能、高可靠性和高容错能力。
Theoretic basis and application effect of using variable frequency regulation technique in power demand side were analyzed.
对电力需求侧采用变频技术的理论依据及实际应用中取得的效果进行了分析。
Such as variable frequency drives can be further connected directly to the communications network or hardwired if necessary.
例如变频驱动器如果有必要的话可以直接被连在通讯网络或硬线上。
In high precision variable frequency speed adjusting system, system's performances are guaranteed by accurate motor parameters.
在高精度变频调速系统中，准确的电动机参数是系统性能的保证。
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
对双PWM变频调速系统中的三相PWM整流器及其控制方法进行了研究。
The sole manufacturer with independent intellectual property rights of four-quadrant high voltage variable frequency technology.
荣信公司是国内最早对四象限中压变频技术有自主知识产权并掌握核心技术厂家。
Based on the characteristics of adjustable speed with variable frequency systems, the paper presents an optimal design strategy.
本文根据变频调速集成系统的特点，提出具有针对性的变频调速电机优化设计策略。
Method of. modeling using the intelligent optimization algorithms is discussed for AC variable frequency speed regulation system.
针对交流变频调速系统，探讨了应用智能优化算法实验建模方法。
Using multi variable frequency domain stability criterion, this paper analyzes the stability of the adaptive laser resonator system.
用多变量频域稳定性判据，分析了自适应激光谐振腔系统的稳定性。
It is proposed to adopt variable frequency regulators regulating oilfield water injection pumps so as to reach the target of energy-saving.
针对这一问题，提出采用变频调速装置对油田注水泵用电动机进行变速调节，以达到节能降耗的目的。
It has proven by practice that the two solutions both can implement Variable Frequency Control of ac Motor well, and have good applied cost.
实践证明，两种解决方案均能很好地实现交流电机的变频控制，具有良好的应用价值。
Applying variable frequency technique and automation control technique in intelligent oil pumping system improves the existing pumping unit.
应用变频调速技术、自动控制技术改造现有的游梁式抽油机，实现了抽油系统的智能化。
This paper discusses the slip frequency control of variable frequency regulating speed system, and analyses the shortage of this control way.
本丈对转差频率控制的变频调速系统进行讨论，分析这种控制方式所存在的不足；
Cascade multilevel inverter has extensive application in the high voltage variable frequency modulated Speed System for its numerous advantages.
级联式多电平逆变器因其具有众多的优点，在高压变频调速领域中得到广泛应用。
For this project ABB Italy and ABB South Korea will supply low voltage switchgear, intelligent motor control units and variable frequency drives.
ABB意大利公司和ABB韩国公司将为这个项目提供低压开关柜，智能电机控制单元，以及变频器。
Control Techniques variable frequency drives provide continuous control, matching motor speed to the specific demands of the work being performed.
控制技术的变频驱动器提供连续控制，配套电机的速度，工作的具体要求正在执行。
In addition, the upcoming Energy-related Products Directive deadline in 2015 will spur additional growth in the European variable frequency drives market.
此外，2015年即将到来的能源相关产品指引期限，将推动欧洲变频器市场的额外增长。
A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
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