Title :
A novel protecting method for motor´s over current
Author :
Jun, Dai ; Shaohua, Ma ; Zhiyuan, Cai ; Shaoyong, Cheng
Author_Institution :
Coll. of Electr. Eng., Shenyang Univ. of Technol., China
Abstract :
A novel protecting method for motor´s over current is introduced, the most important characteristic of this method is that the value of resistance of each phase calculated is adopted as the criterion whether the protecting device acts and provides protection or not. PICI6F877 is adopted as the center of the hardware circuit, the other related circuits and programs are designed, and fast Fourier transform (FFT) is adopted to calculate the value of resistance of each phase.
Keywords :
discrete Fourier transforms; motor protection; overcurrent protection; DFT; FFT; PICI6F877; fast Fourier transform; hardware circuit; motor over current protection; Circuit faults; Current measurement; Discrete Fourier transforms; Educational institutions; Fast Fourier transforms; Flowcharts; Protection; Stator windings; Temperature sensors; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2003. ICEMS 2003. Sixth International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
7-5062-6210-X
