Minimization of Torque Ripple Utilizing by 3-L CHMI in DTC Muhd

Zuber Ahmadi, Muhd Zharif Rifqi and Jidin, Auzani and Jaffar, Kamilah and Othman, Md Nazri and Ravin Nair, P. Nagarajan and JOPRI, MOHD HATTA (2013) Minimization of Torque Ripple Utilizing by 3-L CHMI in DTC Muhd. In: 2013 IEEE 7th INTERNATIONAL POWER ENGINEERING AND OPTIMIZATION CONFERENCE, 3-4 Jun 2013, Bayview Hotel Langkawi.

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A topology of multilevel inverter was to analysised and performed by using the 3- Level Cascaded-H BrigdeMultilevel Inverter (3L-CHMI) in DTC conventional hysteresis-based controller. This topology is similar with the conventional inverter, but it has more strategy for switching states. In this work, hysteresis comparator were used for flux and torque, with 12 sectors stator flux angle and will provide more selection of voltage vector. The basic concept of DTC system for torque and flux control consists of estimator of flux and torque and voltage vector. In conventional DTC, it has a several major issues which are largest torque ripple and unconstant switching frequency at low speed condition operation. So, the main purpose of this research is focusing more on how to reduce the output torque ripple at low speed operation condition. A simulation program had been developed to validate the results by using Matlab/Simulink.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering Technology > Department of Electrical Engineering Technology
Depositing User: Miss Kamilah Jaffar
Date Deposited: 19 Jul 2013 07:52
Last Modified: 28 May 2015 03:51
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