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Electronics
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Power Electronics Converter Topologies and Control Techniques
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Power Electronics Converter Topologies and Control Techniques

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 8699

Special Issue Editors

Prof. Dr. Dylan Lu

E-Mail Website
Guest Editor
School of Electrical and Data Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
Interests: power electronics circuits; modeling and control for efficient and reliable power conversion; power factor correction; consumer electronics; motor drives; renewable electrical energy systems; battery storage systems; microgrid and grid-integration issues
Dr. Ha Pham

E-Mail Website
Guest Editor
School of Electrical and Data Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
Interests: power electronics converter

Special Issue Information

Dear Colleagues,

Distributed power generation and micro grids are the future of our electrical system, where unstable renewable energy resources such as solar and wind can be stabilized by integrating battery storage. Electrification in transportation and smart sensing technology also provide great opportunities. In such a complex system, highly effective energy conversion plays an important role in reducing energy consumption and tackling climate change.

This Special Issue aims to present the latest development in power converter design and control techniques, including all related applications. The topics of interest include, but are not limited to:

  • High-performance power converters;
  • Power converter control and analysis;
  • Solar and wind power;
  • Energy storage;
  • Electrical vehicles;
  • Wireless power transfer;
  • Induction heating;
  • Thermal management.

Prof. Dr. Dylan Lu
Dr. Ha Pham
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • power converters
  • renewable energy
  • energy storage
  • electrical vehicles
  • high frequency
  • high efficiency
  • fast response

Published Papers (5 papers)

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Research

16 pages, 8820 KiB  
Article
Grid-Forming Converter Overcurrent Limiting Strategy Based on Additional Current Loop
by Chongru Liu, Jiahui Xi, Qi Hao, Jufeng Li, Jinyuan Wang, Haoyun Dong and Chenbo Su
Electronics 2023, 12(5), 1112; https://doi.org/10.3390/electronics12051112 - 24 Feb 2023
Viewed by 1503
Abstract
Compared with current source converters, voltage source converters (grid-forming converters) have better frequency support capabilities, voltage support capabilities, and regulation performance, thus they have broad application prospects. However, the grid-forming (GFM) converter has insufficient current control ability, and it easily causes problems such [...] Read more.
Compared with current source converters, voltage source converters (grid-forming converters) have better frequency support capabilities, voltage support capabilities, and regulation performance, thus they have broad application prospects. However, the grid-forming (GFM) converter has insufficient current control ability, and it easily causes problems such as overcurrent issues when a fault occurs. Thus, this insufficiency is one of the most important challenges the GFM converter is faced with. Aiming to solve the problems mentioned above, this paper proposes a control method of a GFM converter achieved with a low-pass filter structure and an additional current loop. The additional current loop controls the dq-axis current components by acting on the outer loop to generate appropriate phase and voltage amplitude reference. The low-pass filter structure is used to solve the system frequency stability problem caused by the inclusion of the additional current loop. On the premise of ensuring that the system frequency meets the grid-connection requirements, the proposed strategy rapidly limits the output current within the allowable range and guarantees expected voltage source characteristics of the converter during the fault period. Finally, the effectiveness and superiority of the proposed control strategy are verified by MATLAB/Simulink simulations. Full article
(This article belongs to the Special Issue Power Electronics Converter Topologies and Control Techniques)
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17 pages, 5901 KiB  
Article
Modified RPWM Strategy Based on Level-Shifted Random Carrier and Power Balance to Reduce the PWM Voltage Noise in Three-Phase CHB Inverters
by Jianfeng Liu, Renxi Gong and Yuanyuan Zhang
Electronics 2023, 12(3), 744; https://doi.org/10.3390/electronics12030744 - 02 Feb 2023
Viewed by 1179
Abstract
Aimed at the pulse width modulation (PWM) voltage noise and power imbalance in three-phase cascaded H-Bridge (CHB) inverters, a modified random PWM (RPWM) strategy, named the power-balanced RPWM (PB-RPWM) strategy, is proposed in this paper. The PB-RPWM strategy mainly includes three steps: (1) [...] Read more.
Aimed at the pulse width modulation (PWM) voltage noise and power imbalance in three-phase cascaded H-Bridge (CHB) inverters, a modified random PWM (RPWM) strategy, named the power-balanced RPWM (PB-RPWM) strategy, is proposed in this paper. The PB-RPWM strategy mainly includes three steps: (1) random pulse signals are generated by compared modulation wave with level-shifted random carriers; (2) the random pulse signals are circularly distributed between CHB units by a logic operation method, and then the driving pulse signals of switching devices are produced; (3) the driving pulse signals are used to control the inverter. Under the PB-RPWM strategy, the spectra of the line voltage become uniform and continuous, that is, the PWM voltage noise of the line voltage can be effectively reduced. The output voltage of a single H-bridge unit can contain three basic voltages within 3/2 TA, that is, the power balance between CHB units can be realized. When compared with conventional non-random and random PWM strategies, the PB-RPWM strategy has a lower PWM voltage noise and smaller total harmonic distortion (THD). When compared with the level-shifted PWM (LS-PWM) strategy, the PB-RPWM strategy has a balanced power performance. The effectiveness and feasibility of the PB-RPWM strategy is verified by abundant simulations and experiments. Full article
(This article belongs to the Special Issue Power Electronics Converter Topologies and Control Techniques)
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7 pages, 1435 KiB  
Communication
A New Approach to Power Distribution by a Dual-Gate MOSFET for Controlling a Smart Actuator Array
by Seok-Hyun Lee and Jaehwan Kim
Electronics 2022, 11(18), 2956; https://doi.org/10.3390/electronics11182956 - 18 Sep 2022
Viewed by 1277
Abstract
Remotely driven smart actuator technology by microwave is attractive since it simplifies and reduces the complexity and weight of the remote system. A rectifying antenna (rectenna) array receives and converts microwave power into DC power for actuators, and the power collected from the [...] Read more.
Remotely driven smart actuator technology by microwave is attractive since it simplifies and reduces the complexity and weight of the remote system. A rectifying antenna (rectenna) array receives and converts microwave power into DC power for actuators, and the power collected from the rectenna array should be accurately allocated and distributed to each actuator. In this research, a new power distribution (PD) logic circuit is studied to control an actuator array effectively. The PD logic circuit was designed and tested to validate it. The preliminary design was tested for a 4 × 4 piezoelectric actuator array with a 16 dual-gate MOSFET array and a computer-controlled 16-channel DAC board. Additionally, power compensation as a remedial approach for a partial power failure of the array was integrated. This PD scheme with a new logic device simplifies the thousands of control cables required for connecting each array element. The performance and limitations of the designed PD circuit are discussed. Full article
(This article belongs to the Special Issue Power Electronics Converter Topologies and Control Techniques)
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14 pages, 1526 KiB  
Article
An Adaptive Output Feedback Controller for Boost Converter
by Xiaoyu Zhang, Wei He and Yanqin Zhang
Electronics 2022, 11(6), 905; https://doi.org/10.3390/electronics11060905 - 15 Mar 2022
Cited by 7 | Viewed by 1575
Abstract
The main contribution of this paper is to propose an adaptive reduced-order state observer for boost converter to reconstruct the inductor current and load conductance. Note that the unknown parameter appears in the output dynamics, which poses a detectability obstacle, imposing a more [...] Read more.
The main contribution of this paper is to propose an adaptive reduced-order state observer for boost converter to reconstruct the inductor current and load conductance. Note that the unknown parameter appears in the output dynamics, which poses a detectability obstacle, imposing a more stringent requirement on the system behavior. As a result, the design of an adaptive reduced-order state observer is more challenging. In this paper, using the dynamic extension technique, we transform the state observation into the parameter estimation. Constructing the parameter observer, the current and load conductance can be estimated. Introducing the estimated terms to a saturated PI passivity-based control, an adaptive output feedback saturated controller is presented. To assess the control performance, the simulation and experimental results are given. Full article
(This article belongs to the Special Issue Power Electronics Converter Topologies and Control Techniques)
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16 pages, 2359 KiB  
Article
Finite-Time Parameter Observer-Based Sliding Mode Control for a DC/DC Boost Converter with Constant Power Loads
by Wei He and Yukai Shang
Electronics 2022, 11(5), 819; https://doi.org/10.3390/electronics11050819 - 05 Mar 2022
Cited by 7 | Viewed by 1868
Abstract
Constant power loads have negative impedance characteristics, which reduce the damping of DC/DC converter systems and have negative effects on the stability of the DC microgrid. In this paper, a finite-time parameter observer-based sliding mode controller is proposed for a boost converter with [...] Read more.
Constant power loads have negative impedance characteristics, which reduce the damping of DC/DC converter systems and have negative effects on the stability of the DC microgrid. In this paper, a finite-time parameter observer-based sliding mode controller is proposed for a boost converter with constant power loads. Firstly, a non-singular terminal sliding-mode controller is designed based on the flatness of the differential and sliding mode control theory. Secondly, a finite-time observer is designed to estimate the input voltage and tunes the parameter of the controller in time. Thirdly, the finite-time stability of the closed-loop system is proved through the proposed controller. Finally, the effectiveness and robustness of the proposed controller with unknown input voltage are verified by simulation. The proposed controller can guarantee finite-time convergence without input voltage sensors, which can reduce system cost and improve system reliability. Full article
(This article belongs to the Special Issue Power Electronics Converter Topologies and Control Techniques)
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