Title :
Design and experiment of 155kW doubly-fed induction motor system used in pump stations
Author :
Zhang, Jie ; Kang, Yong ; Liao, Dong-Chu ; Cai, Hua-Feng ; Pan, Jian ; Wu, Jie
Author_Institution :
Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
It is new application to use doubly-fed induction motor (DFIM) in pump stations in China. This paper presents the design and experiment of a 155 kW DFIM system. In order to solve the problem which occurs during the motor changing its working condition from asynchrony to AC excitation, a strategy of two-step AC excitation is proposed. Three-phase half-wave cycleconverter and stator flux-orientated vector control are adopted to achieve speed control and power factor (PF) control. This system has been experimented in a pump station. Experimental waveforms and analysis are given.
Keywords :
cycloconvertors; induction motors; power factor; doubly-fed induction motor system; power 155 kW; power factor control; pump stations; stator flux-orientated vector control; three-phase half-wave cycleconverter; two-step AC excitation; Blades; Design engineering; Equations; Induction motors; Investments; Machine vector control; Rotors; Stators; Synchronous motors; Velocity control;
Conference_Titel :
Automation Congress, 2008. WAC 2008. World
Conference_Location :
Hawaii, HI
Print_ISBN :
978-1-889335-38-4
Electronic_ISBN :
978-1-889335-37-7
