Abstract

Although the inverter nonlinearity is caused by several different factors, the deadtime and parasitic capacitance effects are major contributors to the carrier signal distortion in carrier signal injection-based sensorless techniques. According to the experiments, this paper establishes the disturbance voltage model of inverter nonlinearity effects for carrier signal injection techniques, which comprises of both fundamental and high-frequency voltage distortion components. With the help of such disturbance voltage model, a new compensation scheme based on the distortion of positive sequence carrier current is developed. Finally, experimental results confirm the effectiveness of proposed method in suppressing the influence of inverter nonlinearity on the rotor position estimation.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.