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Online Tuning Control for a Switch-Sharing Based Multilevel Inverter Using Capacitor Voltage Balancing.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Online Tuning Control for a Switch-Sharing Based Multilevel Inverter Using Capacitor Voltage Balancing./
作者:	Ramli, Zalifah binti.
面頁冊數:	1 online resource (135 pages)
附註:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
標題:	Power supply. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30594295click for full text (PQDT)
ISBN:	9798379749927

Online Tuning Control for a Switch-Sharing Based Multilevel Inverter Using Capacitor Voltage Balancing.
Ramli, Zalifah binti.

Online Tuning Control for a Switch-Sharing Based Multilevel Inverter Using Capacitor Voltage Balancing. - 1 online resource (135 pages)

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.Phil.)--University of Malaya (Malaysia), 2022.

Includes bibliographical references

In these modern days, energy sustainability has gained increasing attention, bringing about the reinforcement of numerous attempts to utilize renewable energy and improve energy efficiency. In relation to this, multilevel inverters, which come from a family of power electronic converters, have a great potential to play an important role in contributing to this field. One type of multilevel inverter which has the potential to perform the task is the switch-sharing-based multilevel inverter. The switch-sharingbased multilevel inverter offers several benefits, such as decreasing the complexity of a circuit, minimizing power losses and contributing to smaller filter size. However, just like diode-clamped multilevel inverter, the switch-sharing-based multilevel inverter also suffers from the unbalanced capacitor voltage issue. This phenomenon degrades the voltage waveforms for the AC-side, which results in an unfavorable operation of the inverter. Therefore, this research adopts the approach of implementing a capacitor voltage balancing circuit based on a buck-boost converter in a five-level switch-sharing-based multilevel inverter topology. For this approach, a performance-based online tuning control based on proportional-integral (PI) configuration is proposed to balance and maintain the capacitor voltages at the desired levels and improve the dynamic performance. Through MATLAB/SIMULINK simulation, a detailed analysis of the results for the buck-boost converter with the proposed online controller with performance-based tuning has been made. For validation purposes, the buck-boost converter has been constructed in the laboratory, and the controller has been implemented on a digital signal processor (DSP). The test conducted with an experimental five-level switch-sharing-based multilevel inverter reveals that satisfactory results have been achieved. Simulation and experimental results reveal that the capacitor voltages can be balanced at high modulation indexes with improved current harmonic performance able to be acquired at the inverter's output.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379749927Subjects--Topical Terms:

3683627
Power supply.
Index Terms--Genre/Form:

542853
Electronic books.

Online Tuning Control for a Switch-Sharing Based Multilevel Inverter Using Capacitor Voltage Balancing.
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504 $a Includes bibliographical references
520 $a In these modern days, energy sustainability has gained increasing attention, bringing about the reinforcement of numerous attempts to utilize renewable energy and improve energy efficiency. In relation to this, multilevel inverters, which come from a family of power electronic converters, have a great potential to play an important role in contributing to this field. One type of multilevel inverter which has the potential to perform the task is the switch-sharing-based multilevel inverter. The switch-sharingbased multilevel inverter offers several benefits, such as decreasing the complexity of a circuit, minimizing power losses and contributing to smaller filter size. However, just like diode-clamped multilevel inverter, the switch-sharing-based multilevel inverter also suffers from the unbalanced capacitor voltage issue. This phenomenon degrades the voltage waveforms for the AC-side, which results in an unfavorable operation of the inverter. Therefore, this research adopts the approach of implementing a capacitor voltage balancing circuit based on a buck-boost converter in a five-level switch-sharing-based multilevel inverter topology. For this approach, a performance-based online tuning control based on proportional-integral (PI) configuration is proposed to balance and maintain the capacitor voltages at the desired levels and improve the dynamic performance. Through MATLAB/SIMULINK simulation, a detailed analysis of the results for the buck-boost converter with the proposed online controller with performance-based tuning has been made. For validation purposes, the buck-boost converter has been constructed in the laboratory, and the controller has been implemented on a digital signal processor (DSP). The test conducted with an experimental five-level switch-sharing-based multilevel inverter reveals that satisfactory results have been achieved. Simulation and experimental results reveal that the capacitor voltages can be balanced at high modulation indexes with improved current harmonic performance able to be acquired at the inverter's output.
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