Title | ||
---|---|---|
DC Voltage Oscillation Stability Analysis of DC-Voltage-Droop-Controlled Multiterminal DC Distribution System Using Reduced-Order Modal Calculation |
Abstract | ||
---|---|---|
To reduce the dimensions of a multiterminal DC (MTDC) distribution system connected with multiple voltage source converters (VSCs), a dynamic equivalent model is normally established, assuming that the VSCs are either identical or have a specified topology. These assumptions are inconsistent with practical scenarios, and thus, may lead to errors in the analyzed results. In this study, differences of the VSCs are considered, and a dynamic equivalent model of a DC-voltage-droop-controlled MTDC distribution system is established by reconstructing the dynamics of the VSCs and the DC network. Based on that, a dynamic-reconstruction-based reduced-order modal calculation method is proposed to quickly calculate the DC voltage oscillation mode and determine the stability. For a MTDC distribution system with N different VSCs, the highest dimension is NH + T, where the orders of the VSC and DC network are H and T, respectively. The highest dimension using the proposed method can be reduced to H +1. Finally, the advances of the proposed method are demonstrated by comparing with other reduced-order methods. The conclusions are verified by both a simple example and a large-scale DC distribution system with 100 different VSCs. |
Year | DOI | Venue |
---|---|---|
2022 | 10.1109/TSG.2022.3178704 | IEEE Transactions on Smart Grid |
Keywords | DocType | Volume |
Dynamic reconstruction,DC voltage oscillation,MTDC distribution system,reduced-order modal calculation,stability analysis | Journal | 13 |
Issue | ISSN | Citations |
6 | 1949-3053 | 0 |
PageRank | References | Authors |
0.34 | 8 | 5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Qiang Fu | 1 | 0 | 0.34 |
Wenjuan Du | 2 | 0 | 0.68 |
Haifeng Wang | 3 | 79 | 32.91 |
Xiaoyang Ma | 4 | 0 | 0.34 |
Xianyong Xiao | 5 | 0 | 1.35 |