Abstract
With the inherent benefits of high-voltage direct current (HVDC) transmission systems like long-distance high-power transmission with lesser losses and costs, easy integration of renewables, and others, increased presence of DC-AC grids is expected. One of the consequences of increased presence of power electronics is the reduced inertia in the grid, which is an emerging concern. Moreover, the long length of AC transmission lines result in the presence of weak grids (with low short-circuit ratio). To address these concerns, an advanced control algorithm is proposed to control the modular multilevel converter (MMC) based HVDC substation that is connected to a low-inertia weak-grid. The algorithm is based on optimization of control states like frequency, capacitor voltages, active power, and currents in the MMC. The performance of the proposed algorithm is validated in PSCAD/EMTDC to show the effectiveness of the proposed strategy.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 435-441 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781509023646 |
| DOIs | |
| State | Published - Jul 2 2017 |
| Event | 12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017 - Honolulu, United States Duration: Dec 12 2017 → Dec 15 2017 |
Publication series
| Name | Proceedings of the International Conference on Power Electronics and Drive Systems |
|---|---|
| Volume | 2017-December |
| ISSN (Print) | 2164-5256 |
| ISSN (Electronic) | 2164-5264 |
Conference
| Conference | 12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017 |
|---|---|
| Country/Territory | United States |
| City | Honolulu |
| Period | 12/12/17 → 12/15/17 |
Funding
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan(http://energy.gov/downloads/doe-public-access-plan). ACKNOWLEDGMENT This material is based upon work supported by the U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability. The authors would like to acknowledge the support from Kerry Cheung, Program Manager at U.S. Department of Energy. The authors would also like to thank the contributions of Marcelo Elizondo, James O’Brien, Qinhua Huang, Yuri Markarov, Harold Kirkham, and Zhenyu Huang from Pacific Northwest National Laboratory; Nihal Mohan, David Orser, Warren Hess, and David Duebner from Midcontinent Independent System Operator; James Feltes, Wenchun