Next Article in Journal
Multi-Agent Systems and Complex Networks: Review and Applications in Systems Engineering
Next Article in Special Issue
Load Frequency Control of Pumped Storage Power Station based on LADRC
Previous Article in Journal
Multiobjective Combination Optimization of an Impeller and Diffuser in a Reversible Axial-Flow Pump Based on a Two-Layer Artificial Neural Network
Previous Article in Special Issue
A Self-Adaptive Damping Control Strategy of Virtual Synchronous Generator to Improve Frequency Stability
Open AccessArticle

A Cooperative Control Scheme for AC/DC Hybrid Autonomous Microgrids

by Wanxing Sheng 1, Yinqiu Hong 2,*, Ming Wu 1 and Yu Ji 1
1
China Electric Power Research Institute, Beijing 100192, China
2
School of Electrical Engineering, Southeast University, Nanjing 210096, China
*
Author to whom correspondence should be addressed.
Processes 2020, 8(3), 311; https://doi.org/10.3390/pr8030311 (registering DOI)
Received: 11 February 2020 / Revised: 29 February 2020 / Accepted: 5 March 2020 / Published: 7 March 2020
(This article belongs to the Special Issue Energy Storage System: Integration, Power Quality, and Operation)
The AC/DC hybrid microgrid (MG) has been widely promoted due to its high flexibility. The capability to operate in islanding mode is an appealing advantage of the MG, and also sets higher requirements for its control system. A droop control strategy is proposed on account of its distinguishing feature of automatic power sharing between distributed generations (DGs), but it introduces some drawbacks. Therefore, distributed cooperative secondary control is introduced as an improvement. In order to optimize the active power sharing in AC/DC hybrid microgrids, a number of cooperative control strategies have been proposed. However, most studies of AC/DC hybrid microgrids have mainly focused on the control of the bidirectional converter, ignoring the effects of secondary control within subnets, which may make a difference to the droop characteristic. This paper extends the cooperative control to AC/DC hybrid microgrids based on normalizing and synthesizing the droop equations, and proposes a global cooperative control scheme for AC/DC autonomous hybrid microgrids, realizing voltage restoration within AC and DC subnets as well as accurate global power sharing. Ultimately, the simulation results demonstrate that the proposed control scheme has a favorable performance in the test AC/DC hybrid system. View Full-Text
Keywords: AC/DC hybrid microgrid; islanding mode; droop control; cooperative control; power sharing AC/DC hybrid microgrid; islanding mode; droop control; cooperative control; power sharing
Show Figures

Figure 1

MDPI and ACS Style

Sheng, W.; Hong, Y.; Wu, M.; Ji, Y. A Cooperative Control Scheme for AC/DC Hybrid Autonomous Microgrids. Processes 2020, 8, 311.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop