Study on the Working Mode and Impedance-Based Stability Criterion of Generalized Electric Spring

Wang, Xiaohu; Duan, Yubin; Chen, Xinyuan; Huang, Zhujun; Wei, Yi; Zhao, Chaohui

doi:10.1109/icopesa56898.2023.10140898

Cited by 2 publications

(1 citation statement)

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“…Two sets of smart loads exist in the G-ES, configured at each end of the feeder critical section to withstand fluctuations in the grid from different directions. 24 This section will use Hamilton's principle to complete the mathematical modeling of the G-ES and define the working mode and working state of the G-ES in combination with the topological structure.…”

Section: Mathematical Modeling Topology and Concepts Of G-esmentioning

confidence: 99%

Research on the working mode, working state, and control strategies of generalized electric spring

Wang,

Chen,

Huang

et al. 2023

Circuit Theory & Apps

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SummaryThe advantage of a generalized electric spring (G‐ES) is that it solves the redundancy problem of a conventional electric spring (ES) in the face of critical load clusters. This paper first introduces Hamilton's principle into the G‐ES, derives the mathematical model of the G‐ES, and further introduces the topology of the G‐ES. Next, the working modes and working states of the G‐ES are defined. The working modes are used to reflect the combination of ES power inside the G‐ES, and the power conditions in specific working modes are described using a phase diagram. Then, the paper analyses the power case of the G‐ES to the external system, giving the respective working states according to their internal working modes. Finally, this paper introduces PQ control to the control strategy of the G‐ES and achieves control of the G‐ES working mode and its working state. The results of the study show that there are 100 working modes of the G‐ES, and 76 working modes have a specific working state. The correctness of the working mode and working state analysis is verified with the help of the MATLAB/Simulink simulation and experiment.

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Section: Mathematical Modeling Topology and Concepts Of G-esmentioning

confidence: 99%