A new high-performance digital trigger circuit of full-control-bridge based on CPLD is designed to the control system of the digital AC-AC variable-frequency.
针对全数字交交变频矢量系统设计了一种基于CPLD的新型高性能全控桥数字触发电路。
Automatic shutoff power semiconductor widely applied in electric circuit such as SM's power, ac variable-frequency power etc. But burning tube often affected its reliability.
自关断功率半导体器件在步进电机电源、交流变频电源等电子线路中应用广泛，而烧管子问题严重影响自关断器件工作的可靠性。
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。
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。
Individual infinite variable speed drive of each roll with AC-motors coupled to programmable frequency inverters.
电机驱动方式为交流变频无极变速驱动。
And the introduction of ac Variable Frequency Speed Regulating technology in the petroleum domain has become a effective action to conserve energy and improve the product quality.
而在石油领域中引入交流变频调速技术已成为节能以及提高产品质量的有效措施。
The AC-DCAC voltage source inverter composes the main circuit of this variable frequency system and CPLD is the logic control device of the power device (IPM).
该变频调速系统主电路采用交-直-交形式，以(CPLD)作为调速系统逆变电路功率开关器件(IPM)的逻辑控制器件。
A novel AC variable frequency converting control system with multiple functions is introduced. The system is suitable for maintaining constant oil pressure in main line of oil pipelines.
阐述了一种新型多功能交流变频调速控制系统，用于保持油田输油管主干线油压恒定。
The result of analysis and experiment show that the proposed method can be applied in the AC variable frequency speed control system which is nonlinear, fast changefully and difficult to be modeled.
理论分析与实验的结果表明：该方法对异步电机变频调速这一非线性、快速多变、难于建模复杂系统的控制是实用和有效的。
As the application of AC variable frequency speed regulation is widely popularized, the request of high precision and high integrality about SPWM generator becomes higher.
由于交流变频调速越来越得到广泛应用，对高精度高集成度SPWM产生器的要求也就越来越高。
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。
In the field of ac machines control, a strategy called variable frequency control is mostly used.
在交流调速领域中，应用最广的是变频调速技术。
Based on the new ANN (artificial neural network) inverse system control method, the AC variable frequency speed control system is analyzed and experimented.
本文运用神经网络逆系统这一新的控制策略，对异步电机变频调速系统进行可逆分析与控制试验。
A kind of medium voltage AC variable frequency control system, which consists of voltage source inverter, sinuous filter and stepup transformer with variable frequency, is introduced.
介绍一种采用低压电压型变频器、正弦波滤波器和变频升压变压器构成的低-高式中压变频控制系统。
DSP-based variable frequency AC motor speed control system, he is more use of the procedure.
基于DSP的交流电动机变频调速控制系统，他是比较使用的程序。
The main parts of the aircraft VSCF electrical power system consist of the no-brush AC variable frequency generator, converter and controller.
飞机变速恒频电源系统的主要部件有无刷交流变频发电机、变换器和控制器。
The main spindle is driven by a variable frequency controlled AC motor.
主轴是由变频控制交流电机驱动。
A brief introduction of the variable frequency AC motor speed control features, pointed out that the centrifugal pump inverter transformation of the economy.
简单介绍了交流电动机的变频调速特点，指出采用变频器改造离心式水泵的经济性。
The invention relates to a variable frequency control method of an AC transducer.
本发明涉及一种交流变频器的变频控制方法。
The design and manufacture for MW-class AC-excited doubly-fed generator is very important in the variable speed constant frequency doubly-fed wind power system.
在变速恒频双馈风电机组中，交流励磁双馈风力发电机的设计和制造技术是十分关键的。
From point of view of electric-energy control, AC excited generation system for wind-energy with variable-speed and constant-frequency includes AC excited generator, AC exciter and the control system.
交流励磁变速恒频风力发电系统从电能控制的角度来看，它包括交流励磁发电机、交流励磁器和发电控制系统。
An ac variable frequency drive system of paper machine with PLC controller is introduced.
介绍适用于造纸机的变频调速PLC控制系统。
The main function of variable frequency power source is to change the current AC power to the needed stable pure power.
变频电源的主要功用是将现有交流电网电源变换成所需频率的稳定的纯净的正选拨电源。
The main function of variable frequency power source is to change the current AC power to the needed stable pure power.
变频电源的主要功用是将现有交流电网电源变换成所需频率的稳定的纯净的正选拨电源。
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