scholarly journals PERFORMA PENGENDALI ARUS STATOR DENGAN MENGGUNAKAN ANFIS PADA PENGEMUDIAN MOTOR INDUKSI BERBASIS VECTOR CONTROL

2019 ◽  
Vol 9 (1) ◽  
pp. 169
Author(s):  
Muhammad Rizani Rusli

Vector control terdiri atas dua pengendali arus stator dq-axis. Performa pengendalian motor induksi secara keseluruhan bergantung pada salah satu atau kedua pengendali arus stator tersebut. Umumnya pengendali arus stator menggunakan pengendali PI, namun pengendali ini memiliki beberapa kelemahan utama yaitu susahnya menentukan gain dari proportional maupun integral. ANFIS yang menggabungkan fuzzy logic controller dan artificial neural network menawarkan kemampuan training, adaptif, cepat, dan handal. Pada paper ini pengendali ANFIS diterapkan untuk pengendali arus stator d-axis pada pengemudian motor induksi berdaya 10 HP dengan metode pengemudian vector control. Keseluruhan sistemnya divalidasi melalui MATLAB/Simulink. Pengendali ANFIS dibandingkan dengan pengendali PI untuk mengevaluasi performa dari motor. Evaluasi performa yang diamati yaitu performa kecepatan dinamik dan performa arus dengan skema pengujian berbeban konstan dan bervariasi. Dari kedua pengujian, pengendali arus stator d-axis PI dan ANFIS menghasilkan trend respon kecepatan dinamik yang sama, namun pengendali arus stator d-axis ANFIS mampu mereduksi konsumsi arus fasa, ripple arus stator d-axis, dan THD arus fasa.

2018 ◽  
Vol 251 ◽  
pp. 03020
Author(s):  
Andrey Karpenko ◽  
Irina Petrova

The purpose of this study is to develop a model of neuro-fuzzy regulation of the microclimate in the room. The proposed model consists of an artificial neural network serving to form a comfort index PMV, a fuzzy logic controller for regulating temperature and humidity in the room. This approach makes it easy to manage these parameters through an estimate of the PMV index, which indicates the level of thermal comfort in the room.


Author(s):  
Girisha Joshi ◽  
Pinto Pius A J

For variable speed drive applications such as electric vehicles, 3 phase induction motor is used and is controlled by fuzzy logic controllers. For the steady functioning of the vehicle drive, it is essential to generate required torque and speed during starting, coasting, free running, braking and reverse operating regions. The drive performance under these transient conditions are studied and presented. In the present paper, vector control technique is implemented using three fuzzy logic controllers. Separate Fuzzy logic controllers are used to control the direct axis current, quadrature axis current and speed of the motor. In this paper performance of the indirect vector controller containing artificial neural network based fuzzy logic (ANFIS) based control system is studied and compared with regular fuzzy logic system, which is developed without using artificial neural network. Data required to model the artificial neural network based fuzzy inference system is obtained from the PI controlled induction motor system. Results obtained in MATLAB-SIMULINK simulation shows that the ANFIS controller is superior compared to controller which is implemented only using fuzzy logic, under all dynamic conditions.


Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3373
Author(s):  
Ludek Cicmanec

The main objective of this paper is to describe a building process of a model predicting the soil strength at unpaved airport surfaces (unpaved runways, safety areas in runway proximity, runway strips, and runway end safety areas). The reason for building this model is to partially substitute frequent and meticulous inspections of an airport movement area comprising the bearing strength evaluation and provide an efficient tool to organize surface maintenance. Since the process of building such a model is complex for a physical model, it is anticipated that it might be addressed by a statistical model instead. Therefore, fuzzy logic (FL) and artificial neural network (ANN) capabilities are investigated and compared with linear regression function (LRF). Large data sets comprising the bearing strength and meteorological characteristics are applied to train the likely model variations to be subsequently compared with the application of standard statistical quantitative parameters. All the models prove that the inclusion of antecedent soil strength as an additional model input has an immense impact on the increase in model accuracy. Although the M7 model out of the ANN group displays the best performance, the M3 model is considered for practical implications being less complicated and having fewer inputs. In general, both the ANN and FL models outperform the LRF models well in all the categories. The FL models perform almost equally as well as the ANN but with slightly decreased accuracy.


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