Symmetric Bipolar Output Full-Bridge Four-Port Converter With Phase-Shift Modulated Buck–Boost Voltage Balancer

Tian, Qingxin; Zhou, Guohua; Wang, Lei; Bi, Qiang; Leng, Minrui

doi:10.1109/tie.2021.3105990

Cited by 19 publications

(11 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For its regulation, a simple pulse-width-modulation (PWM) scheme is needed, however, the buck-boost converter-based voltage balancer still requires extra switches, which degrades the system efficiency and power density. Recently, some interesting solutions based on multi-port structures allow the integration of more than one distributed energy resource [42], [43]. Finally, it is worth noting the approaches proposed in [44] and in [45].…”

Section: A Centralized Architecturementioning

confidence: 99%

DC–DC Converters for Bipolar Microgrid Voltage Balancing: A Comprehensive Review of Architectures and Topologies

Pires¹,

Cordeiro

Roncero‐Clemente

et al. 2023

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Section: A Centralized Architecturementioning

confidence: 99%

DC–DC Converters for Bipolar Microgrid Voltage Balancing: A Comprehensive Review of Architectures and Topologies

Pires¹,

Cordeiro

Roncero‐Clemente

et al. 2023

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

show abstract

“…Driven by practical requirements of specific applications, there are two mainstream configurations for dc microgrids, namely the unipolar structure [6][7] and the bipolar structure [8][9]. Compared to the conventional unipolar dc microgrid, the bipolar dc microgrid generates two dc voltages using a three-wire structure, providing an option for loads to choose three different supply voltages through different connection to wires.…”

Section: Introductionmentioning

confidence: 99%

Small-Signal Stability Assessment and Interaction Analysis for Bipolar DC Microgrids

Leng

Zhou

et al. 2023

IEEE Trans. Power Electron.

Self Cite

View full text Add to dashboard Cite

Bipolarity in dc microgrids is desirable as it enhances the system's reliability and efficiency. However, the stability assessment for bipolar dc microgrid is challenging due to the integration of three-wire dc distribution line and numerous connected power converters, which is different from the stability analysis of conventional unipolar dc microgrid. In this paper, the basic form is arranged by generalized voltage source or current source, and the simplified form is derived by looking into different bus ports of a bipolar system in detail. Then, an impedance sum criteria-based stability conditions of different bus ports in the bipolar dc microgrid are proposed. To explore the mutual influence of the stability among different bus ports as well as investigate the stability issues caused by unbalanced loads connected to the symmetrical bus port, three cases are studied: 1) ±Vdc bus ports are connected with balanced and unbalanced loads; 2) -Vdc bus port introduces the photovoltaic unit and the energy storage unit; 3) The 2Vdc bus port introduces the photovoltaic unit and the energy storage unit. Finally, a ±24 V bipolar dc microgrid platform is set up to conduct experiments, verifying the accuracy and effectiveness of the stability evaluation method.

show abstract

“…However, the unstable output of solar energy will lead to the generation of unbalanced voltage. In order to maintain the coordination of balanced voltage among DG, energy storage system (ESS), load, and utility grid, VB can be adopted to solve the power quality problem [8,9].…”

Section: Introductionmentioning

confidence: 99%

Coordinated control strategy based on voltage balancer in the bipolar DC network with PV power generation

Ming,

Li,

et al. 2023

Fourth International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2023)

View full text Add to dashboard Cite

In the bipolar DC network, the unbalanced loads and distributed power generations will result in unbalanced voltage on the DC bus and load side. The unbalanced voltage will lead to power losses and influence the regular operation of the power system. Voltage balancer (VB) can be introduced to adjust the unbalanced voltage in the bipolar DC network. This paper studies the regulation of unbalanced voltage in a bipolar DC network with voltage source converter (VSC), photovoltaic (PV) power generation and energy storage system (ESS) with the participation of VB. In this paper, it is proposed that the coordinated control based on VB can realize the voltage regulation of all parts in the bipolar DC network. It is pointed out that the proposed control strategy can realize adaptive adjustment of voltage droop coefficient. The MATLAB/Simulink platform is built to verify the effectiveness of the proposed coordinated control method for DC bus and load voltage regulation.

show abstract

Symmetric Bipolar Output Full-Bridge Four-Port Converter With Phase-Shift Modulated Buck–Boost Voltage Balancer

Cited by 19 publications

References 31 publications

DC–DC Converters for Bipolar Microgrid Voltage Balancing: A Comprehensive Review of Architectures and Topologies

DC–DC Converters for Bipolar Microgrid Voltage Balancing: A Comprehensive Review of Architectures and Topologies

Small-Signal Stability Assessment and Interaction Analysis for Bipolar DC Microgrids

Coordinated control strategy based on voltage balancer in the bipolar DC network with PV power generation

Contact Info

Product

Resources

About