A New Method of Coordinating ZCBs and Fuses for a Reliable Short-Circuit Protection in DC Power Networks

Fu, Ruiyun; Montross, Kenneth C.

doi:10.1109/access.2022.3183234

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…Based on the different inverter topologies, many ZSCB topologies supporting unidirectional and bidirectional power flow have been proposed for shipboard protection and other microgrid applications. Coordinated protection can be achieved in multiple ZSCB or with Fuse by enabling a gate driver circuit to control the thyristor [9,10]. The consortium of this paper discusses the various protection devices for DC microgrids and provides a detailed topological review of ZSCB.…”

Section: Introductionmentioning

confidence: 99%

An Overview and Minimum Fault Ramp Rate Analysis of Impedance Based Circuit Breaker Topologies

Abdullah,

Sumathi

2023

IEEE Access

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In the advent of recent developments in a higher efficiency Direct Current (DC) system, the DC microgrid proves to be a permissible future to match the load demand with distributed power generation. The distribution of the DC power system benefits more than the Alternate Current (AC) power system, and due to recent developments, many researchers focus on DC microgrid. DC microgrid system has the advantage of direct interfacing with Renewable energy sources (RES) and energy storage systems (ESS), making the system highly efficient and distinct. Since the protective devices used in AC power systems do not support DC applications, there are challenges in designing and implementing a proper protection device for DC microgrid, which includes the breaking of fault current and the rapid response in handling fault current, capability to overcome the fault and cost of implementing. Unlike traditional circuit breakers that work with a fixed voltage source, Z-Source Breakers are capable of interrupting current in systems with variable voltage sources, making it appropriate for applications involving renewable energy sources, microgrids and energy storage systems. These breakers use a unique Z-Source network to provide enhanced flexibility and reliability in managing electrical faults in modern power grids. This study intends to analyses the recent growth in the impedance-based DC circuit breaker and DC microgrid's fault characteristics.

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Section: Introductionmentioning

confidence: 99%

An Overview and Minimum Fault Ramp Rate Analysis of Impedance Based Circuit Breaker Topologies

Abdullah,

Sumathi

2023

IEEE Access

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Optimizing Power Flow and Stability in Hybrid AC/DC Microgrids: AC, DC, and Combined Analysis

Meena,

Mathur

et al. 2024

MCA

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A microgrid (MG) is a unique area of a power distribution network that combines distributed generators (conventional as well as renewable power sources) and energy storage systems. Due to the integration of renewable generation sources, microgrids have become more unpredictable. MGs can operate in two different modes, namely, grid-connected and islanded modes. MGs face various challenges of voltage variations, frequency deviations, harmonics, unbalances, etc., due to the uncertain behavior of renewable sources. To study the impact of these issues, it is necessary to analyze the behavior of the MG system under normal and abnormal operating conditions. Two different tools are used for the analysis of microgrids under normal and abnormal conditions, namely, power flow and short-circuit analysis, respectively. Power flow analysis is used to determine the voltages, currents, and real and reactive power flow in the MG system under normal operating conditions. Short-circuit analysis is carried out to analyze the behavior of MGs under faulty conditions. In this paper, a review of power flow and short-circuit analysis algorithms for MG systems under two different modes of operation, grid-connected and islanded, is presented. This paper also presents a comparison of various power flow as well as short-circuit analysis techniques for MGs in tabular form. The modeling of different components of MGs is also discussed in this paper.

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A New Method of Coordinating ZCBs and Fuses for a Reliable Short-Circuit Protection in DC Power Networks

Cited by 2 publications

References 27 publications

An Overview and Minimum Fault Ramp Rate Analysis of Impedance Based Circuit Breaker Topologies

An Overview and Minimum Fault Ramp Rate Analysis of Impedance Based Circuit Breaker Topologies

Optimizing Power Flow and Stability in Hybrid AC/DC Microgrids: AC, DC, and Combined Analysis

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