DOI:10.35833/MPCE.2020.000780 |
| |
| |
Distributed Event-triggered Secondary Control for Average Bus Voltage Regulation and Proportional Load Sharing of DC Microgrid |
| |
|
| |
Page view: 156
Net amount: 396 |
| |
Author:
Zhongwen Li1,Zhiping Cheng1,Jikai Si1,Shuhui Li2
|
Author Affiliation:
1.School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China;2.Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
|
Foundation: |
This work was supported by the National Natural Science Foundation of China (No. 61803343) and Key R&D and Promotion Project of Henan Province (No. 202102210096). |
|
|
Abstract: |
This paper proposes a novel distributed event-triggered secondary control method to overcome the drawbacks of primary control for direct current (DC) microgrids. With event-triggered distributed communication, the proposed control method can achieve system-wide control of parallel distrubted generators (DGs) with two main control objectives: ① estimate the average bus voltage and regulate it at the nominal value; ② achieve accurate current sharing among the DGs in proportion to their power output ratings. Furthermore, the proposed control strategy can be implemented in a distributed way that shares the required tasks among the DGs. Thus, it shows the advantages of being flexible and scalable. Furthermore, this paper proposes a simple event-triggered condition that does not need extra state estimator. Thus, limited communication among neighbors is required only when the event-triggered condition is satisfied, which significantly reduces the communication burden at the cyber layer. |
Keywords: |
Direct current (DC) microgrid ; droop control ; event-triggered secondary control ; distributed consensus ; load sharing |
| |
Received:November 03, 2020
Online Time:2022/05/12 |
| |
|
|
View Full Text
Download reader
|