Against the heavy equipment load and complex operations characteristic, the spindle used vector control technology of ac frequency speed control; the car used advanced ac servo control technology.
针对该设备负载大、运行情况复杂等特点，主轴采用了交流变频调速矢量控制技术，小车采用了先进的交流伺服控制技术。
This paper introduces application and developing tendency of AC speed control technique by changing frequency in crane's electrical diving of port and Marine based on potential energy load.
文章主要介绍具有位能性负载特点的港口及船舶起重机械电气传动中交流变频调速技术的应用及发展趋势。
Through application of frequency converter in constant pressure water supply system, the paper describes the economic feature and advantages of adopting AC frequency conversion speed control method.
通过变频器在恒压供水系统中的应用，阐述了采用交流变频调速控制方案的经济性和优越性。
The all-digital ac frequency conversion control system based on the common DC bus can meet the requirements of high speed and high reliable control performance of the high-speed paper machine.
这种基于公共直流母线的全数字交流变频控制系统适用于高速纸机的高速度、高可靠性控制性能的需要。
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。
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。
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。
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。
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