Research on Sensorless Fuzzy PID Control of BDCM based on Improved State Observer

Hanghang Qu, Jie Zeng, Ran Sheng, Yongwei Guo

2019

Abstract

Relative to traditional methods of back-EMF zero crossing points (ZCPs) delay detect, a new method to detect the rotor position of BLDCM is proposed by constructing a state observer to estimate line back-EMF based on line voltage and line current in this paper.And improve the observer, the linear error function is added to the original nonlinear error feedback coefficient of the observer. The combination of the two functions helps accelerate the convergence of the observer and improve the stability of the observer.In order to make its rotate speed more stable, the fuzzy PID is used to replace the traditional PID for the outer ring of the rotate speed.Finally, the simulation results show that this method can accurately estimate the position information of the rotor. With the help of the fuzzy PID control method, the precise control of BLDCM can be realized in a wide speed range.

Paper Citation

in Harvard Style

Qu H., Zeng J., Sheng R. and Guo Y. (2019). Research on Sensorless Fuzzy PID Control of BDCM based on Improved State Observer.In Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering - Volume 1: ICVMEE, ISBN 978-989-758-412-1, pages 416-420. DOI: 10.5220/0008868704160420

in Bibtex Style

@conference{icvmee19,
author={Hanghang Qu and Jie Zeng and Ran Sheng and Yongwei Guo},
title={Research on Sensorless Fuzzy PID Control of BDCM based on Improved State Observer},
booktitle={Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering - Volume 1: ICVMEE,},
year={2019},
pages={416-420},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008868704160420},
isbn={978-989-758-412-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering - Volume 1: ICVMEE,
TI - Research on Sensorless Fuzzy PID Control of BDCM based on Improved State Observer
SN - 978-989-758-412-1
AU - Qu H.
AU - Zeng J.
AU - Sheng R.
AU - Guo Y.
PY - 2019
SP - 416
EP - 420
DO - 10.5220/0008868704160420