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Content Provider | IET Digital Library |
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Author | Chitra, A. Himavathi, S. |
Abstract | Multilevel inverters (MLI) are suitable for renewable energy sources as they operate at lower switching frequency and voltage. The sinusoidal PWM (SPWM) techniques are popularly employed in MLIs to improve the drive performance. However as the number of switches increase it leads to more switching losses, higher price and size of the inverter. In this study, a modified reduced switch MLI (RSMLI) with five switches is proposed. Various multilevel inverter topologies with different multicarrier SPWM techniques such as phase disposition, phase opposition disposition, and alternative phase opposition disposition (APOD) are derived, analysed and presented for the proposed RSMLI. All the inverter topologies are simulated and the scheme with lowest THD is identified. The hardware setup is built for the proposed RSMLI using F28335 digital signal processor (DSP) for pulse generation and the results are validated. The vector control scheme of industrial standard requires an accurate and fast R r estimator for stable performance. Neural based R r estimator proposed by the authors is implemented on FPGA. The proposed RSMLI fed induction motor drive is examined with and without the neural based R r estimator. Encouraging results obtained using the proposed RSMLI are reported. |
Starting Page | 2444 |
Ending Page | 2453 |
Page Count | 10 |
ISSN | 17554535 |
Volume Number | 8 |
e-ISSN | 17554543 |
Issue Number | Issue 12, Dec (2015) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/8/12 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0648 |
Journal | IET Power Electronics |
Publisher Date | 2015-12-01 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Alternative Phase Opposition Disposition APOD Asynchronous Machine Control Engineering Computing Control of Electric Power System Digital Signal Processing Chips Drive Drive Performance Improvement DSP Electric Machine Analysis Computing F28335 Digital Signal Processor Field Programmable Gate Array FPGA Higher Price Induction Motor Drive Industrial Standard Intelligent Rotor Resistance Estimator Logic And Switching Circuit Logic Circuit Machine Vector Control MLI Modified Reduced Switch MLI Multicarrier SPWM Technique Performance Enhancement Phase Disposition Phase Opposition Disposition Power Engineering Computing Pulse Generation PWM Invertors Reduced Switch Multilevel Inverter Renewable Energy Source Rotors RSMLI Fed Induction Motor Drive Sinusoidal PWM Technique Switching Circuit Switching Loss Switching Theory Vector Control Scheme |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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