A Hybrid Multilevel Inverter Scheme for Nine-Phase PPMIM Drive by Using Three-Phase Five-Leg Inverters

Reddy Bhimireddy Prathap; Meraj Mohammad; Iqbal AtifKeerthipati SivakumarBhaskar Mahajan Sagar

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A Hybrid Multilevel Inverter Scheme for Nine-Phase PPMIM Drive by Using Three-Phase Five-Leg Inverters

机译：A Hybrid Multilevel Inverter Scheme for Nine-Phase PPMIM Drive by Using Three-Phase Five-Leg Inverters

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摘要

In pole-phase modulation, the phase order is coming down by pole ratio times in high pole mode, which results in the higher magnitude of spatial harmonics as well as higher torque ripple. In this article, the available three identical voltage-fed windings per effective phase in three-phase 12-pole (3PH-12PO) mode are used to develop the simple multilevel inverter (MLI) configuration for minimizing torque ripple. The proposed MLI scheme is realized with three five-leg inverter modules. Each five-leg inverter module will generate three-level voltage across the phase, thereby resultant voltage seen by each phase winding is five-level voltage in 3PH-12PO mode. This multilevel voltage will improve the torque ripple profile of the motor drive. In addition, the proposed MLI scheme along with phase grouping will enrich the linear modulation range of the pole-phase-modulated induction motor (PPMIM) drive in nine-phase four-pole (9PH-4PO) mode. The switches used to generate a multilevel voltage in 3PH-12PO mode are effectively utilized for blocking the flow of circulating currents. As compared with other conventional nine-phase five-level inverters the proposed five-level inverter requires only 30 switches and it does not require extra clamping diodes/capacitors and extra bidirectional switches for isolating neutrals in 9PH-4PO operation. The validation of proposed MLI scheme is done on a 5-hp nine-phase IM with Ansys Maxwell as well as laboratory prototype for entire modulation range using V/f = constant control.

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来源
《IEEE Transactions on Industrial Electronics》 |2021年第3期|1895-1904|共10页
作者
Reddy Bhimireddy Prathap; Meraj Mohammad; Iqbal AtifKeerthipati SivakumarBhaskar Mahajan Sagar;
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作者单位

Qatar Univ, Dept Elect Engn, Doha 2713, Qatar;

Indian Inst Technol Hyderabad, Dept Elect Engn, Sangareddy 502285, India;

Prince Sultan Univ, Dept Commun & Networks Engn, Riyadh 11586, Saudi Arabia;

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正文语种英语
中图分类无线电电子学、电信技术;
关键词
Inverters; Windings; Harmonic analysis; Space vector pulse width modulation; Phase modulation; Torque measurement; Torque; Carrier-based space vector pulsewidth modulation (SVPWM); linear modulation range; multilevel inverter (MLI); multiphase induction motor (MIM) drives; pole phase modulation; torque ripple profile (TRP);

A Hybrid Multilevel Inverter Scheme for Nine-Phase PPMIM Drive by Using Three-Phase Five-Leg Inverters

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