Control Algorithm of Five-Level Asymmetric Stacked Converter Based on Xilinx System Generator

Kasim, Mostafa Q.; Hassan, Raaed F.; Humaidi, Amjad J.; Abdulkareem, Ahmed Ibraheem; Nasser, Ahmed R.; Alkhayyat, Ahmed

doi:10.1109/icspc53359.2021.9689173

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…This study could be extended in future work by conducting a comparison study between the proposed PSO algorithm and other optimization techniques such as the cuckoo optimization algorithm, social spider optimization, spider monkey optimization, the whale optimization algorithm, grey wolf optimization, the sine cosine algorithm, and the entropy method [37][38][39][40][41][42][43][44][45]. Another extension of this study could be to implement the proposed controller in a real-time environment, either using LabVIEW programming software or using other embedded hardware designs such as FPGA or Raspberry Pi [46]. Other control techniques could be suggested to conduct a comparison study for this medical application [47][48][49][50].…”

Section: Discussionmentioning

confidence: 99%

Adaptive Synergetic Motion Control for Wearable Knee-Assistive System: A Rehabilitation of Disabled Patients

et al. 2022

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In this study, synergetic-based adaptive control design is developed for trajectory tracking control of joint position in knee-rehabilitation system. This system is often utilized for rehabilitation of patients with lower-limb disabilities. However, this knee-assistive system is subject to uncertainties when applied to different persons undertaking exercises. This is due to the different masses and inertias of different persons. In order to cope with these uncertainties, an adaptive scheme has been proposed. In this study, an adaptive synergetic control scheme is established, and control laws are developed to ensure stable knee exoskeleton system subjected to uncertainties in parameters. Based on Lyapunov stability analysis, the developed adaptive synergetic laws are used to estimate the potential uncertainties in the coefficients of the knee-assistive system. These developed control laws guarantee the stability of the knee rehabilitation system controlled by the adaptive synergetic controller. In this study, particle swarm optimization (PSO) algorithm is introduced to tune the design parameters of adaptive and non-adaptive synergetic controllers, in order to optimize their tracking performances by minimizing an error-cost function. Numerical simulations are conducted to show the effectiveness of the proposed synergetic controllers for tracking control of the exoskeleton knee system. The results show that compared to classical synergetic controllers, the adaptive synergetic controller can guarantee the boundedness of the estimated parameters and hence avoid drifting, which in turn ensures the stability of the controlled system in the presence of parameter uncertainties.

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Section: Discussionmentioning

confidence: 99%

Adaptive Synergetic Motion Control for Wearable Knee-Assistive System: A Rehabilitation of Disabled Patients

et al. 2022

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“…In addition, another different version of FBC based on phase-shift switching control has been proposed by Sharma and Agarwal (2021). Due to the useful properties of FBCs, they have been applied in EV applications (Mo et al, 2021).…”

Section: Important Progress In Ev Technologymentioning

confidence: 99%

Energy and battery management systems for electrical vehicles: A comprehensive review & recommendations

Challoob,

Bin Rahmat,

A/L Ramachandaramurthy

et al. 2023

Energy Exploration & Exploitation

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Electric vehicle technology has recently drawn a lot of interest on a global scale due to improved performance in its efficiency and the capability to solve the problems of carbon emission. As such, electric vehicles are the key to achieving sustainable development goals. This review article analyzes deeply the previous technical developments of electric vehicles, focusing on important topics like battery management systems, technologies of power electronics, techniques of charging, and the relevant algorithms and improvements. In addition, several critical problems, and difficulties are presented in order to pinpoint the gaps in the literature. To address the analysis of battery behavior, battery condition monitoring, real-time control design, temperature control, fault diagnostics, and efficiency of battery model are considered. This study highlighted the estimation techniques that predict the internal battery conditions such as internal temperature, state of health, and state of charge, which are difficult to be directly monitored and determined. A lithium-ion battery, a super-capacitor, and related bidirectional DC/DC converters constitutes the infrastructure of a hybrid power system. This review offers useful and practical recommendations for the future development of electric vehicle technology which in turn help electric vehicle engineers to be acquainted with effective techniques of battery storage, battery charging strategies, converters, controllers, and optimization methods to satisfy the requirements of sustainable development goals. Accordingly, this review article will be a platform and future guide for those who are interesting in the field of energy management and its development.

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“…In recent decades, converters with the ability to generate multi-level voltages, which are known as multilevel converters (MLC) have become the most attractive in the academic and industrial fields [1][2][3][4]. Their attractiveness resulted from the nature of their structure that qualifies there to work in medium and high voltage applications using switches with low voltage rate [5][6][7][8][9]. Moreover, these converters contribute to improving the quality of voltage and current, which leads to reduced total harmonic distortion (THD) and ease of filter design [6].…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the number of levels for more than three also causes a challenge of maintaining the balance of the capacitor's voltages [6,13,18]. To overcomes these limitations and challenges, tremendous reduced switching count topologies of the MLC have been proposed [6,9,10,12,13,[19][20][21]. From many others of the reduced switching count MLC topologies, the fivelevel active neutral point clamped(5LANPC) is the most attractive topology.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Five-Level Active Neutral Point Converter Based on Phase Disposition-PWM and Alternate Phase Opposition Disposition-PWM

Noory

Hassan

2022

ITM Web Conf.

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The work in this paper presents the performance analysis of the reduced component count converter which is the 5-Level Active Neutral Point Converter (5LANPC). This 5-level converter has been configured by stacking the traditional 3-Level Neutral Point Converter with the Flying Capacitor converter. Two types of control algorithms were considered and compared to explore the performance of the 5LANPC. The first algorithm was based on the Phase-Disposition-Pulse Width Modulation (PD-PWM), while the second one was based on the Alternate Phase Opposition Disposition-Pulse Width Modulation (APOD-PWM). These algorithms are used to determine the required voltage level and according to the required level the state of the switches is selected through a simplified voltage balance algorithm. This voltage balance algorithm deals with the redundant switching states to maintain the voltages of the 5LANPC capacitors at a specified level. The comparison between these two modulation strategies was performed by simulation based on MATLAB/Simulink package. Simulation results showed compelling outcomes involving the two techniques concerning the voltage and current characteristics, as well as the equilibrium in the capacitor voltages. By comparing the simulation results, it was found that the performance of the system is relatively better using the PD-PWM strategy.

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Control Algorithm of Five-Level Asymmetric Stacked Converter Based on Xilinx System Generator

Cited by 10 publications

References 27 publications

Adaptive Synergetic Motion Control for Wearable Knee-Assistive System: A Rehabilitation of Disabled Patients

Adaptive Synergetic Motion Control for Wearable Knee-Assistive System: A Rehabilitation of Disabled Patients

Energy and battery management systems for electrical vehicles: A comprehensive review & recommendations

Performance Comparison of Five-Level Active Neutral Point Converter Based on Phase Disposition-PWM and Alternate Phase Opposition Disposition-PWM

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