An Improved Rotor Position Estimation Method for SPMSM with Misaligned Hall-Effect Sensor

• This paper presents an improved rotor positionestimation method for surface permanent magnet synchronousmotor (SPMSM) using a low-resolution Hall-Effect sensor. Firstly,an observation function is proposed to detect the speed variation,and a novel correction method based on optimization processis proposed to identify and correct the deviation angle causedby sensor misalignment. Then, an improved position observer isintroduced using a gain-scheduling controller to achieve betterperformance in both steady state and transient state. Theproposed method enhances the anti-perturbation and start-upcapability for SPMSM and compensate the misalignment effectof Hall-Effect sensors. Experimental results are demonstrated toverify the effectiveness of the proposed method.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

SPMSM

hall-effect sensor

sensor misalignment correction

position estimator

Electrical Engineering

Elektro- och systemteknik

Publication and Content Type

ref (subject category)

art (subject category)