Iranian Journal of Electrical & Electronic Engineering
IJEEE
Engineering & Technology
http://ijeee.iust.ac.ir
18
agent2
1735-2827
2383-3890
10.22068/IJEEE
en
jalali
1394
3
1
gregorian
2015
6
1
11
2
online
1
fulltext
en
DC Voltage Control and Power-Sharing of Multi-Terminal DC Grids Based on Optimal DC Power Flow and Flexible Voltage Droop Strategy
1-Power systems Control
Power systems Control
Research Paper
Research Paper
<p>This paper develops an effective control framework for DC voltage control and power-sharing of multi-terminal DC (MTDC) grids based on an optimal power flow (OPF) procedure and the voltage-droop control. In the proposed approach, an OPF algorithm is executed at the secondary level to find optimal reference of DC voltages and active powers of all voltage-regulating converters. Then, the voltage droop characteristics of voltage-regulating converters, at the primary level, are tuned based on the OPF results such that the operating point of the MTDC grid lies on the voltage droop characteristics. Consequently, the optimally-tuned voltage droop controller leads to the optimal operation of the MTDC grid. In case of variation in load or generation of the grid, a new stable operating point is achieved based on the voltage droop characteristics. By execution of a new OPF, the voltage droop characteristics are re-tuned for optimal operation of the MTDC grid after the occurrence of the load or generation variations. The results of simulation on a grid inspired by CIGRE B4 DC grid test system demonstrate efficient grid performance under the proposed control strategy.</p>
<p style="text-align: left;"><img alt="AWT IMAGE" src="./files/site1/images/6.png" style="width: 250px; height: 250px;" ></p>
: CIGRE B4 DC grid test system, multi-terminal DC grids, optimal power flow, voltage droop control, hierarchical control
137
144
http://ijeee.iust.ac.ir/browse.php?a_code=A-10-804-6&slc_lang=en&sid=en
F.
Azma
Azma77777@gmail.com
`180031947532846003795`

180031947532846003795
No
Ferdowsi University of Mashhad, Bahonar Blv., Mashhad, Iran
H.
Rajabi-Mashhadi
h_mashhadi@um.ac.ir
`180031947532846003796`

180031947532846003796
Yes
Ferdowsi University of Mashhad, Bahonar Blv., Mashhad, Iran