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Electromechanical Transient Modeling Analysis of Large-Scale New Energy Grid Connection

Shichao Cao*, Yonggang Dong, Xiaoying Liu

Department of Electrical Engineering, Hebei Vocational University of Technology and Engineering, Xingtai, 054000, China

* Corresponding Author: Shichao Cao. Email: email

(This article belongs to the Special Issue: Renewable Energy Technologies for Sustainable Energy Production)

Energy Engineering 2024, 121(4), 1109-1125. https://doi.org/10.32604/ee.2023.043004

Abstract

The synchronous virtual machine uses inverter power to imitate the performance of the conventional synchronous machine. It also has the same inertia, damping, frequency, voltage regulation, and other external performance as the generator. It is the key technology to realize new energy grid connections’ stable and reliable operation. This project studies a dynamic simulation model of an extensive new energy power system based on the virtual synchronous motor. A new energy storage method is proposed. The mathematical energy storage model is established by combining the fixed rotor model of a synchronous virtual machine with the charge-discharge power, state of charge, operation efficiency, dead zone, and inverter constraint. The rapid conversion of energy storage devices absorbs the excess instantaneous kinetic energy caused by interference. The branch transient of the critical cut set in the system can be confined to a limited area. Thus, the virtual synchronizer’s kinetic and potential energy can be efficiently converted into an instantaneous state. The simulation of power system analysis software package (PSASP) verifies the correctness of the theory and algorithm in this paper. This paper provides a theoretical basis for improving the transient stability of new energy-connected power grids.

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APA Style
Cao, S., Dong, Y., Liu, X. (2024). Electromechanical transient modeling analysis of large-scale new energy grid connection. Energy Engineering, 121(4), 1109-1125. https://doi.org/10.32604/ee.2023.043004
Vancouver Style
Cao S, Dong Y, Liu X. Electromechanical transient modeling analysis of large-scale new energy grid connection. Energ Eng. 2024;121(4):1109-1125 https://doi.org/10.32604/ee.2023.043004
IEEE Style
S. Cao, Y. Dong, and X. Liu, “Electromechanical Transient Modeling Analysis of Large-Scale New Energy Grid Connection,” Energ. Eng., vol. 121, no. 4, pp. 1109-1125, 2024. https://doi.org/10.32604/ee.2023.043004



cc Copyright © 2024 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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