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A Novel Loss of Excitation Protection Principle for Synchronous Condenser Based on Leading Rate Read chapter Read first chapter

2020 | OriginalPaper | Chapter

DC Micro-grid Voltage Control Strategy Based on Discrete Consensus Algorithm

Authors : Ke Jia, Jinfeng Chen, Bin Yang

Published in: Proceedings of PURPLE MOUNTAIN FORUM 2019-International Forum on Smart Grid Protection and Control

Publisher: Springer Nature Singapore

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Abstract

Due to the uneven distribution of virtual resistance and line impedance in the DC micro-grid, the traditional droop control has the contradiction between current sharing and voltage regulation. In this paper, the droop control based on the discrete consensus algorithm is adopted. Each power generation unit adopts adjacent communication, and the reference value of the DC bus voltage is corrected according to the mean value after the iterative of the system voltage, thereby compensating for the voltage drop caused by the droop control. The photovoltaic (PV) cell adopts the maximum power tracking (MPPT) control. The battery adopts the constant voltage control with current threshold, which can keep the DC bus voltage stable, and the outlet current is prevented from being too large to shorten the service life of the battery. Stable operation of the DC micro-grid is realized. Finally, the PV/battery DC micro-grid model is built in Simulink. When the environmental conditions and load change, the micro-grid can ensure the DC bus voltage constant and the active power balance, which verifies the effectiveness of the proposed control strategy.

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Metadata
Title
DC Micro-grid Voltage Control Strategy Based on Discrete Consensus Algorithm
Authors
Ke Jia
Jinfeng Chen
Bin Yang
Copyright Year
2020
Publisher
Springer Nature Singapore
Book
Proceedings of PURPLE MOUNTAIN FORUM 2019-International Forum on Smart Grid Protection and Control

Print ISBN: 978-981-13-9778-3

Electronic ISBN: 978-981-13-9779-0

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-981-13-9779-0_49