Satiawan, I Nyoman Wahyu and Citarsa, Ida Bagus Fery and Warindi, Warindi and Wiryajati, I Ketut and Supriono, Supriono and Seniari, Ni Made and Suksmadana, I Made Budi (2022) Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage. International Journal of Electrical, Energy and Power System Engineering (IJEEPSE), 5 (3). pp. 93-98. ISSN 2654-4644
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Abstract
This paper investigates PWM method for the dual inverter fed open end winding three-phase induction motor drives. This is aimed to improve the quality of the output voltage as well as to enhance the motor performance by solving the drawback of the PWM method. The proposed PWM method operates two inverters in different technique, i.e one inverter operates in square wave mode (slow switching) and one inverter in PWM mode (fast switching). Although the PWM method can improve the quality of the inverter output voltage over the two level inverter output, the proposed PWM method causes an excessive ripple in both torque and stator current especially at the transient period. The drawback is solved by applying a new switching strategy that manage the inverter switches operate in turn between slow switching and fast switching in one circle of operation. The proposed method is verified via simulation. The result shows that the quality of output voltages improves for all modulation indices in comparison with two-level inverter. Furthermore, torque ripple is reduced, and current ripple are improved as the current waveform is enhanced to be more symmetrical.
| Item Type: | Article |
|---|---|
| Keywords (Kata Kunci): | Dual-inverter fed, Modulation technique, Open-end winding, PWM |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Fakultas Teknik |
| Depositing User: | I Nyoman Wahyu Satiawan, Ph.D. |
| Date Deposited: | 04 Jun 2023 11:30 |
| Last Modified: | 04 Jun 2023 11:30 |
| URI: | http://eprints.unram.ac.id/id/eprint/39148 |
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Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage. (deposited 16 May 2023 02:39)
- Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage. (deposited 04 Jun 2023 11:30) [Currently Displayed]
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