Effective Saliency Based Initial Rotor Position Estimation of Permanent Magnet Synchronous Motor for High torque applications
- Resource Type
- Conference
- Authors
- Sangeeth, P; Ramalingam, Balaji; Ashok, S
- Source
- 2020 IEEE International Power and Renewable Energy Conference Power and Renewable Energy Conference (IPRECON), 2020 IEEE International. :1-6 Oct, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Fields, Waves and Electromagnetics
General Topics for Engineers
Nuclear Engineering
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Rotors
Inductance
Inductance measurement
Estimation
Switches
Windings
Stator windings
permanent magnet synchronous motor
line to line inductance measurement
initial rotor position
pole identification
- Language
This paper proposes an effective method for the initial rotor position estimation of interior PMSM. The smooth start-up of a PMSM drives heavily relies on the accurate initial rotor position. Improper initial rotor position value leads to starting failure or temporary reverse rotation. This method utilizes the line to line inductance values to estimate the rotor position. High-frequency voltage signals injection and the rotating coordinate transformation technique used to extract rotor position information from the inductance values. The pole identification is done by using the current saturation concept and SVPWM switching sequence. This method effectively helps to avoid temporary reverse rotation and starting failures. The validity and practical applications of the proposed estimation technique are verified through the experimental outcomes. The proposed method has been implemented on a microcontroller (TMS320F28035). The obtained experimental results confirm the effectiveness of these methods.