Large-disturbance stability for power-converter-dominated microgrid: A review

Guocheng, San; Zhang, Wenlin; Guo, Xiaoqiang; Chen, Hua; Xin, Huanhai; Blaabjerg, Frede

doi:10.1016/j.rser.2020.109859

Cited by 39 publications

(29 citation statements)

References 71 publications

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“…The challenge arises with the largely varying SCC between the operating configuration due to the varying power sources and loads 43‐45 …”

Section: Framework and Installation Of Microgridmentioning

confidence: 99%

“…Microgrids comprises of mixed type of power sources and equipments. The challenge arises to maintain the system stability with inertia based generators as well as static converter based PV, wind and energy storage devices 44,49 . Further the converters are of multiple types like based on power‐electronic devices and virtual synchronous generator.…”

Section: Framework and Installation Of Microgridmentioning

confidence: 99%

“…The challenge arises with the largely varying SCC between the operating configuration due to the varying power sources and loads. [43][44][45] • Analysis on protection and co-ordination: With the varying and low SCC, the protection study becomes vital. The microgrid setup must be designed with efficient protection equipments and personnel safety along with a coordinated and sequenced operation of protection devices.…”

Section: Installation Challengesmentioning

confidence: 99%

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The implementation framework of a microgrid: A review

Chandak

Rout

2020

Int J Energy Res

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Summary A microgrid is a trending small‐scale power system comprising of distributed power generation, power storage, and load. This article presents a brief overview of the microgrid and its operating characteristics. The integration of microgrids with the existing power system has been challenging and requires time to time modifications. To analyze the changing demand, the article discusses the modifications made in IEEE 1547 integration standards. The article recollects and reviews the control strategies of certain microgrid testbeds installed all around the world. A focus has been drawn toward the integration of microgrids in a developing country like India. An overview of the policies followed and the challenges faced to integrate the microgrid in the Indian power industry is presented. The article concludes with the worthy findings for the future aspects of research to improve the overall performance along with the smooth integration of the microgrid.

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“…The challenge arises with the largely varying SCC between the operating configuration due to the varying power sources and loads 43‐45 …”

Section: Framework and Installation Of Microgridmentioning

confidence: 99%

Section: Framework and Installation Of Microgridmentioning

confidence: 99%

Section: Installation Challengesmentioning

confidence: 99%

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The implementation framework of a microgrid: A review

Chandak

Rout

2020

Int J Energy Res

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“…The electromechanical torque is produced as a result of interaction between the stator and rotor flux (4). The real and reactive power equations are finally derived as (5) and (6) respectively, where ,   is the Euclidean inner product on ℝ . Although the original modelling has been carried out in abc reference frame, the small-signal modelling in the dq reference frame is recommended to compare the performance of synchronverter and vector control strategies.…”

Section: ) Empirical Modellingmentioning

confidence: 99%

“…Besides that, the paradigm of system stability changes with the increased penetration of power converters in the interconnected power system [5]. The challenges in operating a microgrid without synchronous machines (SM) [6] also applies to the interconnected system with higher RES penetration. There can be two possible solutions to address these issues: one is to restructure the operation and control of the whole power system, second is to mimic the behaviour of SM which dominates the present power system.…”

Section: Introductionmentioning

confidence: 99%

Synchronverter: A Comprehensive Review of Modifications, Stability Assessment, Applications and Future Perspectives

et al. 2020

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The increase in the penetration of renewable energy sources (RES) has reduced the effective inertia of the power system dominated by synchronous machines. The reduction in inertia has paved the way to the development of inertia emulation techniques, which complements the increased penetration of RES. The synchronverter technology is one among the virtual inertia emulation techniques which resembles close to the synchronous machine. The advancements in control and adaptations of synchronverter for various applications demand a comprehensive yet critical review. Thus, the main objective of this paper is to present a critical review of synchronverter technology which could increase the inertial response of RES. A critical analysis of modifications made to original synchronverter and the stability assessment techniques is presented. The effect of parameter variation on stability and dynamic performance is brought out as a decision matrix by analysing the movement of eigenvalues presented in various works. Towards the end, a synoptic overview is presented to depict the research trend and emphasize the domain which requires further attention. Furthermore, a brief discussion of the research gaps perceived during the phase of review is presented to leverage future research in the field.

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Knowledge graph‐based multimodal neural networks for smart‐grid defect detection

Li,

Wang,

Zhu

et al. 2023

Engineering Reports

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The application of artificial intelligence in smart grid operations, particularly for defect detection, has seen remarkable progress. However, effectively leveraging multi‐modal data sources to enhance defect detection performance remains challenging. This paper presents a novel Knowledge Graph‐based Multimodal Neural Network (KGMNN) approach for robust and efficient defect detection in smart grids. Our proposed method first leverages multiple heterogeneous data sources, such as structural data, temporal sensor readings, and maintenance records, creating a comprehensive representation of the grid system. The system is then modeled as a knowledge graph, with nodes representing various entities and edges signifying their interconnections and interactions. This paper introduces a novel neural network architecture that effectively leverages the knowledge graph structure. This architecture incorporates multi‐modal fusion techniques, enabling the model to process and integrate diverse data sources. It can recognize intricate patterns indicative of potential defects that are often undetectable in individual data modes. Experimental results on several real‐world smart grid datasets demonstrate that the KGMNN significantly outperforms state‐of‐the‐art techniques in terms of precision, recall, and computational efficiency. Furthermore, the KGMNN's ability to provide explainable predictions, aided by the inherent interpretability of the knowledge graph structure, is of significant practical value in the field. This research paves the way for a new generation of AI‐powered defect detection in smart grids, facilitating enhanced grid reliability and operational efficiency.

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Large-disturbance stability for power-converter-dominated microgrid: A review

Cited by 39 publications

References 71 publications

The implementation framework of a microgrid: A review

The implementation framework of a microgrid: A review

Synchronverter: A Comprehensive Review of Modifications, Stability Assessment, Applications and Future Perspectives

Knowledge graph‐based multimodal neural networks for smart‐grid defect detection

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