Study on Improved the SVPWM Algorithm Based on Non-orthogonal Coordinates
Yan Liu · Huagong zidonghua ji yibiao · 2010
The basic principle and shortcomings of traditional space vector pulse width modulation(SVPWM) based on rectangular coordinate were analyzed.A new simplified algorithm based on non-orthogonal coordinates was proposed.The improved scheme decomposed the coordinate changed from αβ topq.Using this method,the computing of the sector position and switching vector time,which could avoid the calculation of trigonometric function,reduced the computation,saved the computing time and suited for digital implementation.The simulated result confirms that the algorithm is validity.