Analysis of Optical Combination of Phase Angle of Requency Division-Fundamental Voltage Based on Discrete Variable Frequency Soft Starting Technology
Author(s): Liang Bin, Yu Qiao-na, Li Zhong-zheng, Ma Hui, Yi Li-feng, Liu Jun
Pages: 5-8
Year: 2014 Issue: 11
Journal: Electronics Quality
Keyword: asynchronous motors; discrete variable frequency; soft starting; MATLAB simulation;
Abstract: Discrete variable frequency soft starting for three-phase asynchronous motors can restrain bit starting current,and ensure too enough starting torque.It can be wel applied for devices with high load. Firstly,choose the discrete variable frequency with the symmetrical positive-sequence combination of phase angle.But there is no positive-sequence combination of phase angle in some discrete variable frequency.In this paper take the 2 discrete frequency for exemple,determine the optical combination of phase angle with the discrete variable frequency by three phase symmetry component method.Based on the theory,simulation of different combinations of phase angle is established by the SIMULINK.The experiment approves the optical combination of phase angle can star motor with high strating torque and smal starting current.
Pages: 5-8
Year: 2014 Issue: 11
Journal: Electronics Quality
Keyword: asynchronous motors; discrete variable frequency; soft starting; MATLAB simulation;
Abstract: Discrete variable frequency soft starting for three-phase asynchronous motors can restrain bit starting current,and ensure too enough starting torque.It can be wel applied for devices with high load. Firstly,choose the discrete variable frequency with the symmetrical positive-sequence combination of phase angle.But there is no positive-sequence combination of phase angle in some discrete variable frequency.In this paper take the 2 discrete frequency for exemple,determine the optical combination of phase angle with the discrete variable frequency by three phase symmetry component method.Based on the theory,simulation of different combinations of phase angle is established by the SIMULINK.The experiment approves the optical combination of phase angle can star motor with high strating torque and smal starting current.
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