The topic of Energy saving on motor system has always being researched by scholars, and the variable frequency variable speed technology has been paid the focus attention among the researches.
电机节能问题一直是广大学者研究的热点，在电机节能技术中最受瞩目的是变频调速技术。
Variable speed cutting is a new technology of improving machining quality of part' s end plane.
变速切削是提高零件加工质量的一种新工艺办法。
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。
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 optimization theory and method combined with variable frequency speed regulation technology is applied in this paper to realize efficiency optimization in water injection pumping stations.
利用最优化原理与方法结合变频调速技术实现注水泵站效率优化控制，以满足油田生产节能降耗的需要。
The changes in variable speed drive technology for electrified railways are summarized.
概述电气化铁路用可变速传动技术的变迁。
Combined with the variable frequency transformation of the induced fan in my company, the variable frequency speed regulation technology is ripe, and the electricity-saving effect is significant.
结合我公司引风机的变频改造，认为变频调速技术已经成熟，节电效果显著，在其他转机上可以应用。
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。
Features: Using the world famous HONDA gasoline engine-HONDA, Japan's NHK bearings, machine adopts advanced technology in Japan, stepless variable speed, superior performance.
产品特点：选用世界名牌本田汽油发动机-HONDA，日本NHK轴承，整机采用日本先进技术，无极变速，性能优越。
The technology of variable frequency speed governing was used in the driving system of the experiment stand. And the advanced stepping digital overflow valve was adopted in the part of loading.
该试验台的驱动系统采用交流变频调速技术，加载部分采用先进的步进式数字溢流阀进行加载。
The PLC control system, variable frequency speed control system, mathematics model technology and SCADA system is used. The system has been running well constantly.
该控制系统应用plc控制、变频调速、数学模型以及上位监控系统技术，达到了良好效果。
This thesis researched and designed the technology of variable-frequency speed Variation system based on DSP, which based on this background.
本文以此为背景对基于DSP变频调速系统进行了研究。
This thesis researched and designed the technology of variable-frequency speed Variation system based on DSP, which based on this background.
本文以此为背景对基于DSP变频调速系统进行了研究。
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