A Digital Control Strategy With Simple Transfer Matrix for Three-Phase Buck Rectifier Under Unbalanced AC Input Conditions

Chen, Qiang; Xu, Jianping; Huang, Rui; Wang, Weisu; Wang, Lei

doi:10.1109/tpel.2020.3019291

Cited by 15 publications

(4 citation statements)

References 15 publications

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“…Theorem 1. For the nonlinear systems (1) with hysteresis quantizer (2), applying the controller (24) and adaptive laws (29) proposed in control design, the following conclusions hold:…”

Section: Stability Analysismentioning

confidence: 95%

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Adaptive quantized control for uncertain nonlinear systems with unknown control directions

Sun

et al. 2021

Intl J Robust & Nonlinear

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This study reports adaptive quantized control for a class of uncertain strict-feedback nonlinear systems with unknown control directions. Combining backstepping technique and Lyapunov stability theory, a systematic analysis method is designed. Based on the disintegration of the hysteresis quantizer, a Nussbaum-based scheme can be developed to get over the obstacle of the quantized input signal and unknown control directions. Moreover, the number of adaptive laws is small, thereby reducing the computational burden. Then we testify the boundedness of all signals in the closed-loop system. Besides, the tracking error can converge to an arbitrarily small domain of origin. Finally, a simulation example is provided to verify the feasibility of the control scheme.

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“…Theorem 1. For the nonlinear systems (1) with hysteresis quantizer (2), applying the controller (24) and adaptive laws (29) proposed in control design, the following conclusions hold:…”

Section: Stability Analysismentioning

confidence: 95%

“…As a digital encoder, quantization is the basis of research on digital control, 29 discrete event systems, 30 and hybrid systems. 31 When the control signal and measurement results in the system need to be transmitted remotely through wireless communication, the limitation of the communication channel bandwidth appears in smart devices.…”

Section: Introductionmentioning

confidence: 99%

Adaptive quantized control for uncertain nonlinear systems with unknown control directions

Sun

et al. 2021

Intl J Robust & Nonlinear

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“…Furthermore, power quality impacts and losses increase when the voltage output is less than three quarters of input voltage due to decreasing modulation index of less than 0.5 of the standard buck converter. The matrix-based three-phase buck converter has been implemented in [219], [220] to regulate the modulation index and improve grid support.…”

Section: ) Buck-type Rectifiermentioning

confidence: 99%

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

et al. 2023

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Electric Vehicles (EVs) are projected to be one of the major contributors to energy transition in global transportation due to their rapid expansion. High-level of EVs integration into the electricity grid will introduce many challenges for the power grid planning, operation, stability, standards, and safety. Therefore, the wide-scale adoption of EVs imposes research and development of charging systems and EV supply equipment (EVSE) to achieve expected charging solutions for EV batteries as well as to improve ancillary services. Analysis of the status of EV charging technologies is important to accelerate EV adoption with advanced control strategies to discover a remedial solution for negative impacts and to enhance desired charging efficiency and grid support. This paper presents a comprehensive review of EV charging technologies, international standards, the architecture of EV charging stations, and the power converter configurations of EV charging systems. The charging systems require a dedicated converter topology, a control strategy, compatibility with standards, and grid codes for charging and discharging to ensure optimum operation and enhance grid support. An overview of different charging systems in terms of onboard and offboard chargers, AC-DC and DC-DC converter configuration, and AC and DC-based charging station architectures are evaluated. In addition, recent charging systems which are integrated with renewable energy sources are presented to identify the power train of modern charging stations. Finally, future trends and challenges in EV charging and grid integration issues are summarized as the future direction of the research.INDEX TERMS Electric vehicle, charging configuration, grid integration, international standards, onboard and offboard charger, power converters.

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“…Along with the reconstruction of the circuit, corresponding space vector pulse width modulation (SVPWM) strategy results in lower voltage stress than the input phase voltage on the switches. Furthermore, a transfer matrix-based digital controller has been designed that reduces the input current THD and output voltage ripple under unbalanced ac input condition without any sophisticated calculation or phaselocked loop (PLL) [54]. Another issue for TPBR while operating in high frequency is caused by distributed parasitic capacitances between the dc link output and the ground, leading to input current distortion especially at light load condition.…”

Section: A Three-phase Buck Type Rectifiermentioning

confidence: 99%

A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications

et al. 2022

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Wide-scale adoption and projected growth of electric vehicles (EVs) necessitate research and development of power electronic converters to achieve high power, low-cost, and reliable charging solutions for the EV battery. This paper presents a comprehensive review of EV off-board chargers that consist of acdc and dc-dc power stages from the power network to the EV battery. Although EV chargers are categorized into two types, namely, on-board and off-board chargers, it is essential to utilize off-board chargers for dc fast and ultra-fast charging so that volume and weight of EV can be reduced significantly. Here, we discuss the state-of-the-art topologies and control methods of both ac-dc and dc-dc power stages for off-board chargers, focusing on technical details, ongoing progress, and challenges. In addition, most of the recent multiport EV chargers integrating PV, energy storage, EV, and grid are presented. Moreover, comparative analysis has been carried out for the topologies and the control schemes of ac-dc rectifiers, dc-dc converters, and multiport converters in terms of architecture, power and voltage levels, efficiency, bidirectionality, control variables, advantages, and disadvantages which can be used as a guideline for future research directions in EV charging solutions.INDEX TERMS Charging stations, converter control, converter topologies, DC fast chargers, electric vehicle (EV), EV fast chargers, multilevel AC-DC converter, multiport converter, off-board charger.

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A Digital Control Strategy With Simple Transfer Matrix for Three-Phase Buck Rectifier Under Unbalanced AC Input Conditions

Cited by 15 publications

References 15 publications

Adaptive quantized control for uncertain nonlinear systems with unknown control directions

Adaptive quantized control for uncertain nonlinear systems with unknown control directions

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications

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