Details
| Original language | English |
|---|---|
| Article number | 8002593 |
| Pages (from-to) | 340-348 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Power Delivery |
| Volume | 33 |
| Issue number | 1 |
| Publication status | Published - 1 Feb 2018 |
Abstract
Keywords
- frequency control, HVDC power transmission, Jacobian matrices, load flow control, offshore installations, power grids, power system security, power transmission control, voltage control, wind turbines, hybrid AC/DC post-contingency power-flow algorithm, multi-terminal high-voltage direct current grids, offshore wind turbines, dynamic simulation, line loadings, active power balancing controls, simulation models, offshore power system, post-contingency power-flow situation, extended system Jacobian, frequency support, AC frequency control, DC voltage control, online security assessment, static analysis methods, asynchronous power systems, control interactions, asynchronous area, Frequency control, Wind turbines, Power system dynamics, Load flow, Voltage control, HVDC transmission, Security, Wind energy integration, power system dynamics, HVDC, multi-terminal, power flow analysis
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE Transactions on Power Delivery, Vol. 33, No. 1, 8002593, 01.02.2018, p. 340-348.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Hybrid AC/DC Post-Contingency Power-Flow Algorithm Considering Control Interaction of Asynchronous Area
AU - Hennig, Tobias
AU - Hofmann, L.
N1 - Funding information: Manuscript received January 19, 2017; revised May 28, 2017; accepted July 16, 2017. Date of publication August 4, 2017; date of current version January 22, 2018. This work was supported in part by the German Federal Ministry for Economic Affairs and Energy and in part by the Projektträger Jülich GmbH (PTJ) within the framework of the Project NSON (FKZ 0325734A). Paper no. TPWRD-00082-2017. (Corresponding author: Tobias Henning.) T. Hennig was with the Department of Energy Economy and Grid Operation, Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Kassel 34119, Germany. He is now with Amprion GmbH, Dortmund 44139, Germany (e-mail: tobias.hennig@amprion.net).
PY - 2018/2/1
Y1 - 2018/2/1
N2 - This paper presents an approach for the calculation and estimation of control interactions between asynchronous power systems coupled via multi-terminal high-voltage direct current grids using static analysis methods. This aims at possible application within online security assessment where, as of today, static analysis methods are still a common practice. Therefore, the postcontingency power flow is evaluated using an integrated approach for the solution of AC and DC systems in the power-flow algorithm. Thereby, equations for DC voltage control and AC frequency control of converter stations, generators, loads as well as wind turbines with frequency support are embedded into the extended system Jacobian. The results show that by using the proposed approach, the post-contingency power-flow situation can be accurately determined and the frequency changes in each subsystem can be sufficiently tracked. Using an application example of an offshore power system with frequency support by offshore wind turbines, all results have been validated against dynamic simulation, while simulation models and controllers are provided. It is shown that active power balancing controls of AC and DC systems could have a high impact on line loadings and need to be respected for security analyses.
AB - This paper presents an approach for the calculation and estimation of control interactions between asynchronous power systems coupled via multi-terminal high-voltage direct current grids using static analysis methods. This aims at possible application within online security assessment where, as of today, static analysis methods are still a common practice. Therefore, the postcontingency power flow is evaluated using an integrated approach for the solution of AC and DC systems in the power-flow algorithm. Thereby, equations for DC voltage control and AC frequency control of converter stations, generators, loads as well as wind turbines with frequency support are embedded into the extended system Jacobian. The results show that by using the proposed approach, the post-contingency power-flow situation can be accurately determined and the frequency changes in each subsystem can be sufficiently tracked. Using an application example of an offshore power system with frequency support by offshore wind turbines, all results have been validated against dynamic simulation, while simulation models and controllers are provided. It is shown that active power balancing controls of AC and DC systems could have a high impact on line loadings and need to be respected for security analyses.
KW - frequency control
KW - HVDC power transmission
KW - Jacobian matrices
KW - load flow control
KW - offshore installations
KW - power grids
KW - power system security
KW - power transmission control
KW - voltage control
KW - wind turbines
KW - hybrid AC/DC post-contingency power-flow algorithm
KW - multi-terminal high-voltage direct current grids
KW - offshore wind turbines
KW - dynamic simulation
KW - line loadings
KW - active power balancing controls
KW - simulation models
KW - offshore power system
KW - post-contingency power-flow situation
KW - extended system Jacobian
KW - frequency support
KW - AC frequency control
KW - DC voltage control
KW - online security assessment
KW - static analysis methods
KW - asynchronous power systems
KW - control interactions
KW - asynchronous area
KW - Frequency control
KW - Wind turbines
KW - Power system dynamics
KW - Load flow
KW - Voltage control
KW - HVDC transmission
KW - Security
KW - Wind energy integration
KW - power system dynamics
KW - HVDC
KW - multi-terminal
KW - power flow analysis
UR - http://www.scopus.com/inward/record.url?scp=85028938823&partnerID=8YFLogxK
U2 - 10.1109/tpwrd.2017.2736420
DO - 10.1109/tpwrd.2017.2736420
M3 - Article
VL - 33
SP - 340
EP - 348
JO - IEEE Transactions on Power Delivery
JF - IEEE Transactions on Power Delivery
SN - 1937-4208
IS - 1
M1 - 8002593
ER -