A new approach to the nonlinear fuzzy control of the switched reluctance motor

Author(s):  
J.N. Bradford ◽  
Xin Feng
2013 ◽  
Vol 367 ◽  
pp. 405-410
Author(s):  
Guo Qing Li ◽  
Dean Zhao ◽  
Hui Jiang

To solve the strong coupling and nonlinear of switched reluctance motor (SRM) used in the Electric valve ,we use a fuzzy compound PID control method, and apply it to the switched reluctance motors speed control system.The simulation applys that this method combines the advantages of fuzzy control and PID control and is well applied to non-linears object.Based on the theory, we design the core to the outer loops speed feedback and inner current loops feedback system in TMS320F28335,and describe the specific hardware and software structure, morely verify the feasibilitys test. The theory can solve the problem that the traditional PID cannot meet the variation of the parameter from the electric valve.


2013 ◽  
Vol 418 ◽  
pp. 100-103
Author(s):  
Shun Yuan Wang ◽  
Chwan Lu Tseng ◽  
Shou Chuang Lin ◽  
Jen Hsiang Chou ◽  
Yu Wen Chen ◽  
...  

This study adopts the fuzzy control theory to design a self-tuning fuzzy controller (STFC), which allows adjustment to overcome the controller design difficulty caused by switched reluctance motor (SRM) nonlinearity. Based on the torque sharing function (TSF), the proposed STFC was implanted into an SRM direct torque control (DTC) drive system to develop a system with superior speed and electromagnetic torque dynamic responses. In addition, the control strategy possessed excellent electromagnetic torque response, and effectively improved the dynamic response of the system. Keywords: fuzzy control theory, switched reluctance motor (SRM), torque sharing strategy.


2011 ◽  
Vol 383-390 ◽  
pp. 285-289
Author(s):  
Guan Qun Sun ◽  
Bin Rui Wang

A fuzzy self-correction controller based on DSP (TMS320LF240) micro-controller was designed to solve the problem that traditional controller can’t meet the random disturbance parameters of reluctance motor having notable nonlinear. Parameters could be automatically adjusted and response is rapid. According to the demand that two windings provide electric power at the same time for switched reluctance motor (SR motor), the system adopted Mamdani model with two inputs, MAXMIN barycenter technique was used for judging manner. Fuzzy research table and driving software were designed. Experiment results with a 5.5KW SR motor illustrated that the four phases SRD with fuzzy control technology proposed in this paper has excellent driving character.


Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 924-928 ◽  
Author(s):  
Paolo Di Barba ◽  
Maria Evelina Mognaschi ◽  
David Alister Lowther ◽  
Sławomir Wiak

AbstractIn this paper, a new approach to robust optimal design is proposed. The idea is to consider the sensitivity by means of two auxiliary criteria A and D, related to the magnitude and isotropy of the sensitivity, respectively. The optimal design of a switched-reluctance motor is considered as a case study: since the case study exhibits two design criteria, the relevant Pareto front is approximated by means of evolutionary computing.


2016 ◽  
Vol 33 (6) ◽  
pp. 1668-1679 ◽  
Author(s):  
Ming-Shyan Wang ◽  
Seng-Chi Chen ◽  
Wei-Chin Fang ◽  
Po-Hsiang Chuang

Purpose – Extensive efforts have been conducted on the improvement of torque ripple in switched reluctance motor (SRM) drive. The purpose of this paper is to estimate initial on time of pulse-width modulation (PWM) and turn-off angle using the motor speed and rotor angle by fuzzy logic. Design/methodology/approach – A fuzzy logic control together with the PWM technique and turn-off angle are used to improve torque ripple and dynamic response. Findings – After determining initial on time of PWM, the rise slope of phase current is increased. Research limitations/implications – Future work will consider to increase the complex of the fuzzy control to adaptively tune parameters and achieve excellent results. Practical implications – The experimental results of the proposed method are presented to show the effectiveness. Originality/value – This paper achieves SRM control by one special PWM technique which is seldom studied.


Sign in / Sign up

Export Citation Format

Share Document