kth.sePublications
Change search
Link to record
Permanent link

Direct link
Chompoobutrgool, YuwaORCID iD iconorcid.org/0000-0002-4867-0797
Publications (10 of 19) Show all publications
Chompoobutrgool, Y. (2015). Aspects of Wide-Area Damping Control Design using Dominant Path Synchrophasor Signals. (Doctoral dissertation). Stockholm: KTH Royal Institute of Technology
Open this publication in new window or tab >>Aspects of Wide-Area Damping Control Design using Dominant Path Synchrophasor Signals
2015 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

The presence of inter-area oscillations has long affected stability constraints, and therefore, limited the power transfer capacity of interconnected power systems. Adequate damping of these inter-area oscillations is, thus, necessary to secure system operation and ensure system reliability while increasing power transfers. Power system stabilizers (PSS) are the most common devices used to enhance the damping of such oscillations. Many studies have demonstrated that PSSs using remote signals may perform better than using local signals.

The advent of phasor measurement units (PMU) makes remote or wide-area signals become available, which enables various important applications. Of particular interest is wide-area damping control (WADC), which aims to utilize remote or wide-area measurements to damp the inter-area oscillations. However, two main challenges in WADC design are (1) feedback controller input signal selection (which PMU signal is best to use?), and (2) latency (which is inherent in the transmission of the measurements) considerations.

In response to the first challenge, this thesis proposes a concept called dominant inter-area oscillation path, which serves to pinpoint a set of candidate signals that can be used as the feedback controller inputs by locating the interconnected corridors where the inter-area modal contents are the most observable. Derivation, identification, and use of the dominant inter-area oscillation paths are demonstrated throughout the thesis. Extensive analysis on the relationships between the proposed set of signals and system properties regarding stability and robustness is presented. To tackle the second challenge, the impacts of time delays on the system performance when using the dominant path signals are investigated.

To date, several studies have proposed different control design methods using various oscillation dampers to design WADC. Nevertheless, neither a systematic method nor a concept that encompasses fundamental knowledge on power system dynamics has yet been offered. The objective of this thesis is, thus, to propose an analytical framework based on the dominant path concept which is built upon fundamental principles for feedback controller input signal selection in WADC. With this framework, a proper and systematic approach is developed. The proposed method allows to select appropriate signals and use them to effectively mitigate the inter-area oscillations that constrain power transfer capacity and affect system stability.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2015. p. 132
Series
TRITA-EE, ISSN 1653-5146 ; 2015:015
Keywords
power system stability and control, inter-area oscillations, wide-area damping control, synchrophasor measurements
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-164251 (URN)978-91-7595-522-3 (ISBN)
Public defence
2015-05-07, F3, Lindstedtsvägen 28, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Funder
Swedish Energy Agency, 76131
Note

QC 20150414

Available from: 2015-04-14 Created: 2015-04-14 Last updated: 2022-06-23Bibliographically approved
Sturk, C., Vanfretti, L., Chompoobutrgool, Y. & Sandberg, H. (2015). Coherency-Independent Structured Model Reduction of Power Systems. In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING: . Paper presented at General Meeting of the IEEE-Power-and-Energy-Society, JUL 26-30, 2015, Denver, CO. IEEE
Open this publication in new window or tab >>Coherency-Independent Structured Model Reduction of Power Systems
2015 (English)In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, IEEE , 2015Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
IEEE, 2015
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-184586 (URN)000371397500073 ()978-1-4673-8040-9 (ISBN)
Conference
General Meeting of the IEEE-Power-and-Energy-Society, JUL 26-30, 2015, Denver, CO
Note

QC 20160404

Available from: 2016-04-04 Created: 2016-04-01 Last updated: 2022-06-23Bibliographically approved
Chompoobutrgool, Y. & Vanfretti, L. (2015). Using PMU signals from dominant paths in power system wide-area damping control. Sustainable Energy, Grids and Networks, 4, 16-28
Open this publication in new window or tab >>Using PMU signals from dominant paths in power system wide-area damping control
2015 (English)In: Sustainable Energy, Grids and Networks, E-ISSN 2352-4677, Vol. 4, p. 16-28Article in journal (Refereed) Published
Abstract [en]

This article presents a comprehensive study of dominant inter-area oscillation path signals and their application for power system wide-area damping control (WADC). The analysis, carried out on both small and large study systems, focuses on the relationships that emerge from physical characteristics of inter-area oscillations, namely the modal observability of signals from dominant paths and their corresponding control loop system properties (i.e. stability and robustness). The aim is to be able to appropriately exploit the dominant path signals for the mitigation of inter-area oscillations. Guidelines and considerations are provided to facilitate the design of WADC using the proposed approach.

Place, publisher, year, edition, pages
Elsevier, 2015
Keywords
Delay margin, Dominant inter-area oscillation paths, Inter-area oscillations, Synchronized phasor measurements, Time delays, Wide-area damping control
National Category
Control Engineering
Identifiers
urn:nbn:se:kth:diva-181840 (URN)10.1016/j.segan.2015.09.001 (DOI)000218548100002 ()2-s2.0-84945312601 (Scopus ID)
Note

QC 20160210

Available from: 2016-02-10 Created: 2016-02-05 Last updated: 2022-07-11Bibliographically approved
Chompoobutrgool, Y. & Vanfretti, L. (2014). Analysis of Time Delay Effects for Wide-Area Damping Control Design using Dominant Path Signals. In: 2014 IEEE Power and Energy Society General Meeting: . Paper presented at 2014 IEEE Power and Energy Society General Meeting, National Harbor, United States, 27 July 2014 through 31 July 2014 (pp. 6938872). IEEE Computer Society
Open this publication in new window or tab >>Analysis of Time Delay Effects for Wide-Area Damping Control Design using Dominant Path Signals
2014 (English)In: 2014 IEEE Power and Energy Society General Meeting, IEEE Computer Society, 2014, p. 6938872-Conference paper, Published paper (Refereed)
Abstract [en]

The purpose of this article is to investigate the effects of time delays for wide-area damping control design when signals from dominant inter-area oscillation paths are used as feedback inputs for damping controllers. The analysis is carried out using a two-area study system. Frequency and time-domain responses of a generator's terminal voltage when the PSS uses PMU signals subject to time delays will be compared and assessed. The analysis reveals that while modal observability of the dominant path signals corresponds to the gain of the open-loop system at the inter-area frequency, these properties are inversely proportional to their corresponding delay margins.

Place, publisher, year, edition, pages
IEEE Computer Society, 2014
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
Keywords
Time delays, synchronized phasor measurements, wide-area damping control, dominant inter-area oscillation paths
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-163918 (URN)10.1109/PESGM.2014.6938872 (DOI)000349551500062 ()2-s2.0-84930995273 (Scopus ID)978-1-4799-6415-4 (ISBN)
Conference
2014 IEEE Power and Energy Society General Meeting, National Harbor, United States, 27 July 2014 through 31 July 2014
Funder
Swedish Energy Agency, 76131StandUp
Note

QC 20150413

Available from: 2015-04-13 Created: 2015-04-13 Last updated: 2022-06-23Bibliographically approved
Sturk, C., Vanfretti, L., Chompoobutrgool, Y. & Sandberg, H. (2014). Coherency-Independent Structured Model Reduction of Power Systems. IEEE Transactions on Power Systems, 29(5), 2418-2426
Open this publication in new window or tab >>Coherency-Independent Structured Model Reduction of Power Systems
2014 (English)In: IEEE Transactions on Power Systems, ISSN 0885-8950, E-ISSN 1558-0679, Vol. 29, no 5, p. 2418-2426Article in journal (Refereed) Published
Abstract [en]

This paper proposes a new model reduction algorithm for power systems based on an extension of balanced truncation. The algorithm is applicable to power systems which are divided into a study area which requires a high-fidelity model and an external area, making up most of the power system, which is to be reduced. The division of the power system can be made arbitrarily and does not rely on the identification of coherent generators. The proposed algorithm yields a reduced order system with a full non-linear description of the study area and a reduced linear model of the external area.

Keywords
Dynamic equivalents, internal systems, model reduction of power systems, structured model reduction
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-152568 (URN)10.1109/TPWRS.2014.2302871 (DOI)000341190700043 ()2-s2.0-84906781165 (Scopus ID)
Funder
Swedish Research Council, 2007-6350 2009-4565Swedish Foundation for Strategic Research StandUp
Note

QC 20140929

Available from: 2014-09-29 Created: 2014-09-29 Last updated: 2022-06-23Bibliographically approved
Danielson, M., Vanfretti, L., Almas, M. S., Chompoobutrgool, Y. & Gjerde, J. (2013). Analysis of Communication Network Challenges for Synchrophasor-Based Wide-Area Applications. In: Proceedings of IREP Symposium: Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid, IREP 2013. Paper presented at 2013 IREP Symposium on Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid, IREP 2013; Rethymno, Greece, 25-30 August 2013. IEEE conference proceedings
Open this publication in new window or tab >>Analysis of Communication Network Challenges for Synchrophasor-Based Wide-Area Applications
Show others...
2013 (English)In: Proceedings of IREP Symposium: Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid, IREP 2013, IEEE conference proceedings, 2013Conference paper, Published paper (Refereed)
Abstract [en]

Wide-area synchrophasor applications inherently depend on the underlying IT and communications infrastructure supporting them. In particular, closed loop control systems for power grid oscillation damping is problematic, as it is a complex mixture of power grid monitoring, communication network properties and overall system stability issues. This article offers a holistic analysis of these fields, proposing a combined requirement on the full system: to keep system delays down to maintain stability. Simulation results to support the analysis findings, also showing how observability of power oscillations is important in combination with system delays related to feedback signals, and finally laying out experimentation plans to be performed in the lab on a complex power-grid model with real PMUs, communication network and controllers interacting with the SmarTS Lab real-time hardware-in-the-loop simulator platform.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2013
Keywords
communication network, phasor-measurement units(PMU), wide-area applications
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-128597 (URN)10.1109/IREP.2013.6629379 (DOI)2-s2.0-84890507450 (Scopus ID)978-147990199-9 (ISBN)
Conference
2013 IREP Symposium on Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid, IREP 2013; Rethymno, Greece, 25-30 August 2013
Note

Qc 20130924

Available from: 2013-09-13 Created: 2013-09-13 Last updated: 2024-01-18Bibliographically approved
Chompoobutrgool, Y. & Vanfretti, L. (2013). Identification of Power System Dominant Inter-Area Oscillation Paths. In: 2013 IEEE Power and Energy Society General Meeting (PES): . Paper presented at 2013 IEEE Power and Energy Society General Meeting, PES 2013; Vancouver, BC; Canada; 21 July 2013 through 25 July 2013. IEEE
Open this publication in new window or tab >>Identification of Power System Dominant Inter-Area Oscillation Paths
2013 (English)In: 2013 IEEE Power and Energy Society General Meeting (PES), IEEE , 2013Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
IEEE, 2013
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Energy Engineering
Identifiers
urn:nbn:se:kth:diva-144139 (URN)000331874300119 ()978-1-4799-1303-9 (ISBN)
Conference
2013 IEEE Power and Energy Society General Meeting, PES 2013; Vancouver, BC; Canada; 21 July 2013 through 25 July 2013
Note

QC 20140414

Available from: 2014-04-14 Created: 2014-04-10 Last updated: 2022-06-23Bibliographically approved
Chompoobutrgool, Y. & Vanfretti, L. (2013). Identification of power system dominant inter-area oscillation paths. IEEE Transactions on Power Systems, 28(3), 2798-2807
Open this publication in new window or tab >>Identification of power system dominant inter-area oscillation paths
2013 (English)In: IEEE Transactions on Power Systems, ISSN 0885-8950, E-ISSN 1558-0679, Vol. 28, no 3, p. 2798-2807Article in journal (Refereed) Published
Abstract [en]

This paper presents three algorithms for identification of dominant inter-area oscillation paths: a series of interconnected corridors in which the highest content of the inter-area modes propagates through. The algorithms are developed to treat different sets of data: 1) known system model; 2) transient; and 3) ambient measurements from phasor measurement units (PMUs). These algorithms take feasibility into consideration by associating the network variables made available by PMUs, i.e., voltage and current phasors. All algorithms are demonstrated and implemented on a conceptualized Nordic Grid model. The results and comparison among three algorithms are provided. The applications of the algorithms not only facilitate in revealing critical corridors which are mostly stressed but also help in indicating relevant feedback input signals and inputs to mode meters which can be determined from the properties of dominant paths.

Keywords
dominant path, Inter-area oscillations, network modeshapes, power oscillation monitoring
National Category
Energy Systems
Identifiers
urn:nbn:se:kth:diva-126742 (URN)10.1109/TPWRS.2012.2227840 (DOI)000322989900076 ()2-s2.0-84880919787 (Scopus ID)
Funder
StandUpEU, European Research Council
Note

QC 20130821

Available from: 2013-08-21 Created: 2013-08-21 Last updated: 2022-06-23Bibliographically approved
Vanfretti, L., Chompoobutrgool, Y. & Chow, J. H. (2013). Interarea Mode Analysis for Large Power Systems using Synchrophasor Data. In: Joe H. Chow (Ed.), Power System Coherency and Model Reduction: (pp. 259-295). New York: Springer
Open this publication in new window or tab >>Interarea Mode Analysis for Large Power Systems using Synchrophasor Data
2013 (English)In: Power System Coherency and Model Reduction / [ed] Joe H. Chow, New York: Springer, 2013, p. 259-295Chapter in book (Other academic)
Abstract [en]

Interarea oscillations are predominantly governed by the slower electromechanical modes which, in turn, are determined by the coherent machine rotor angles and speeds. The issue is that, although these rotor angles and speeds provide the best visibility of such modes, currently they are not available from phasor measurement units (PMU). As such, the aim of this chapter is to demonstrate that interarea oscillations are observable in the network variables, such as voltages and line currents, which are measured by PMU. By analyzing the electromechanical modes in the network variables, we can trace how electromechanical oscillations are spread through the power network following a disturbance. Applying eigenvalue and sensi- tivity analysis, we provide an analytical framework to understand the nature of these network oscillations through a relationship termed network modeshapes. Using this relationship, a novel concept, “dominant interarea oscillation paths,” is developed to identify the passageways where the interarea modes of concern travel the most. We demonstrate the concept of the dominant path with an equivalent two-area sys- tem. We propose an algorithm for identification of the dominant paths and illustrate with a reduced model of a large-scale network. Finally, we end this chapter with an important application of the concept: feedback input signal selection for damping controller design.

Place, publisher, year, edition, pages
New York: Springer, 2013
Series
Power Electronics and Power Systems, ISSN 2196-3185 ; 94
Keywords
Coherency in power systems, External system reduction, Interarea modes, Interarea oscillations, Krylov subspace method, Large power systems, Machine aggregation, Perturbation techniques, Selective modal analysis, PMU, synchrophasors, smart grid
National Category
Engineering and Technology Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
SRA - Energy
Identifiers
urn:nbn:se:kth:diva-121189 (URN)10.1007/978-1-4614-1803-0_10 (DOI)978-1-4614-1802-3 (ISBN)978-1-4614-1803-0 (ISBN)
Funder
StandUp, 76106StandUp, 76174StandUp, 76157
Note

QC 20131104

Available from: 2013-04-23 Created: 2013-04-23 Last updated: 2022-06-24Bibliographically approved
Chompoobutrgool, Y. & Vanfretti, L. (2012). A fundamental study on damping control design using PMU signals from dominant inter-area oscillation paths. In: North American Power Symposium (NAPS), 2012: . Paper presented at 2012 North American Power Symposium, NAPS 2012; Champaign, IL; 9 September 2012 through 11 September 2012 (pp. 1-6). IEEE
Open this publication in new window or tab >>A fundamental study on damping control design using PMU signals from dominant inter-area oscillation paths
2012 (English)In: North American Power Symposium (NAPS), 2012, IEEE , 2012, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

This article presents a fundamental study on feedback control using different types of signals available from a dominant inter-area oscillation path; the passageway containing the highest content of the inter-area oscillations. Results from the previous studies verify the persistence and robustness of dominant path signals and suggest that using such signals, effective damping control may be achieved. To corroborate the implication, signals available from phasor measurement units (PMU) e.g. voltage phasors (magnitude and angle) from the dominant path are used as feedback inputs for a power system stabilizer (PSS) control design for damping enhancement. The corresponding performance are compared with those using generator speed, which is a commonly used signal though not available from PMUs, as inputs. Contrary to expectations found in common practice, that of speed being the one of the most effective signal for damping control, it is demonstrated here that their corresponding damping performance is inferior to those using voltage phasors as feedback inputs. A conceptualized two-area system is used to analyze damping performance throughout this study.

Place, publisher, year, edition, pages
IEEE, 2012
Keywords
feedback input signals selection, network modeshapes, dominant inter-area oscillation paths, PMU
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Järnvägsgruppen - Elsystem
Identifiers
urn:nbn:se:kth:diva-103027 (URN)10.1109/NAPS.2012.6336336 (DOI)2-s2.0-84870527939 (Scopus ID)978-146732308-6 (ISBN)
Conference
2012 North American Power Symposium, NAPS 2012; Champaign, IL; 9 September 2012 through 11 September 2012
Funder
Swedish Research Council, 76131StandUp, 76106
Note

Qc 20121001

Available from: 2012-10-01 Created: 2012-10-01 Last updated: 2022-06-24Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4867-0797

Search in DiVA

Show all publications