New Speed Determination Method Based on Resolver
Wu Shuang · Electric Drive · 2011
A novel method for demodulating the output signals of the resolver through software was proposed.The analog signals which is produced by the resolver converted to the digital signals by using the ADC(analog to digital converter) module of the DSP(TMS320F2812) rather than using the RDC(resolver to digital converter).The analog signals is sent to the ADC module,and is sampled,disposed,and compensated by the software,then the rotor-speed of the motor is calculated.The experiments demonstrate that this method can determine the rotor-speed accurately,and realizes the idea of using the software instead of the hardware.