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Farrokhseresht, NakisaORCID iD iconorcid.org/0000-0002-9968-075X
Publications (3 of 3) Show all publications
Farrokhseresht, M., Farrokhseresht, N. & Hesamzadeh, M. R. (2016). Optimizing the net transfer capacity of a cross-border interconnector by Reactive Power Planning. In: IEEE Power and Energy Society General Meeting: . Paper presented at 2016 IEEE Power and Energy Society General Meeting, PESGM 2016, 17 July 2016 through 21 July 2016. IEEE
Open this publication in new window or tab >>Optimizing the net transfer capacity of a cross-border interconnector by Reactive Power Planning
2016 (English)In: IEEE Power and Energy Society General Meeting, IEEE, 2016Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a method for Reactive Power Planning (RPP) is proposed which ensures voltage stability in a system with cross-border electricity flows. One or more cross-border tie-lines connect the Source-area, containing cheap generation, to the Sink-area which is willing to import this cheap power. A mathematical method is used to maximize the economic benefit of the Sink-area with respect to the cost of the installed reactive compensators which maximize the Net Transfer Capacity (NTC) of the tie-lines. An analytic expression for the NTC does not exist and two methods are henceforth proposed to approximate the NTC: (1) approximation by a piecewise linear function and (2) by a polynomial obtained with statistical regression. The method is programmed in GAMS and formulated as a Mixed-Integer Non-Linear Programming problem (MINLP).

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
Net Transfer Capacity, Piecewise Linear Functions, Reactive Power Planning, Regression, Voltage Stability, Integer programming, Nonlinear programming, Piecewise linear techniques, Polynomial approximation, Reactive power, Voltage control, Analytic expressions, Mathematical method, Mixed integer non-linear programming problems, Piece-wise linear functions, Statistical regression, Transfer capacities, Electric power system planning
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Mathematical Analysis Computational Mathematics
Identifiers
urn:nbn:se:kth:diva-202138 (URN)10.1109/PESGM.2016.7742012 (DOI)000399937903173 ()2-s2.0-85001949342 (Scopus ID)9781509041688 (ISBN)
Conference
2016 IEEE Power and Energy Society General Meeting, PESGM 2016, 17 July 2016 through 21 July 2016
Note

QC 20170313

Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-06-29Bibliographically approved
Farrokhseresht, N., Chavez, H. & Hesamzadeh, M. R. (2015). Economic impact of wind integration on Primary Frequency Response. In: 2015 IEEE Eindhoven PowerTech, PowerTech 2015: . Paper presented at IEEE Eindhoven PowerTech, PowerTech 2015, 29 June 2015 through 2 July 2015. IEEE conference proceedings
Open this publication in new window or tab >>Economic impact of wind integration on Primary Frequency Response
2015 (English)In: 2015 IEEE Eindhoven PowerTech, PowerTech 2015, IEEE conference proceedings, 2015Conference paper, Published paper (Refereed)
Abstract [en]

In order to have a reliable and secure power system, frequency stability should be guaranteed. Primary Frequency Response (PFR) is used to arrest the frequency deviation upon a contingency. The significant penetration of wind generation in power grids has negative effect on the PFR, as the contribution of wind machines to the total system inertia is low and classical wind turbines do not have PFR capabilities. This study uses two metrics of frequency control, ROCOF and frequency Nadir to analyze the cost increase for maintaining adequacy in the presence of wind power. The Nordic 32-A test grid, representing the Swedish grid is used as case study on which the method is applied.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015
Keywords
optimal power flow, primary frequency response, system identification, wind power integration, Electric load flow, Frequency response, Identification (control systems), Wind power, Wind turbines, Economic impacts, Frequency deviation, Frequency nadirs, Optimal power flows, System inertia, Wind generation, Wind integration, Wind power integrations, Electric power transmission networks
National Category
Energy Engineering Environmental Engineering
Identifiers
urn:nbn:se:kth:diva-181166 (URN)10.1109/PTC.2015.7232688 (DOI)000380546800455 ()2-s2.0-84951335650 (Scopus ID)9781479976935 (ISBN)
Conference
IEEE Eindhoven PowerTech, PowerTech 2015, 29 June 2015 through 2 July 2015
Note

QC 20160205

Available from: 2016-02-05 Created: 2016-01-29 Last updated: 2016-10-03Bibliographically approved
Farrokhseresht, N., Chavez Orostica, H. & Hesamzadeh, M. R. (2014). Determination of Acceptable Inertia Limit for Ensuring Adequacy under High Levels of Wind Integration. In: : . Paper presented at 11th International Conference on European Energy Market (EEM), MAY 28-30, 2014, Krakow, POLAND.
Open this publication in new window or tab >>Determination of Acceptable Inertia Limit for Ensuring Adequacy under High Levels of Wind Integration
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The significant penetration of wind generation in power grids has raised new challenges in operational and planning decisions of power systems. Wind turbine units almost always include power converters decoupling the frequency dynamics of the wind power generators from that of the grid. This decoupling causes a reduction in total system inertia, affecting the system's ability to overcome frequency disturbances [1]. To study the impact of wind power on system inertia, a system identification approach is followed. This heuristic identification method determines the parameters of governors and prime movers. The instantaneous minimum frequency requirements and the rate of change of frequency are simulated using the identified power system, and via an extrapolation, the maximum wind power penetration in Sweden is found. Finally, a need for market design is introduced in order to ensure adequacy.

Series
International Conference on the European Energy Market, ISSN 2165-4077
Keywords
primary frequency control, power system simulation, system identification, wind power integration, electricity market
National Category
Energy Engineering
Identifiers
urn:nbn:se:kth:diva-158333 (URN)10.1109/EEM.2014.6861300 (DOI)000345229900098 ()2-s2.0-84905715614 (Scopus ID)978-147996094-1 (ISBN)978-1-4799-6095-8 (ISBN)
Conference
11th International Conference on European Energy Market (EEM), MAY 28-30, 2014, Krakow, POLAND
Note

QC 20150123

Available from: 2015-01-23 Created: 2015-01-07 Last updated: 2015-01-23Bibliographically approved
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Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-9968-075X

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