Applications Based on PMU Technology for Improved Power System Utilization

Skok, Srđan; Ivanković, Igor; Čerina, Zdeslav

doi:10.1109/pes.2007.385580

Cited by 21 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in injected power is therefore due to the current component represented by the sum in (2). The point of maximum injectable power from occurs therefore when the voltage is aligned with the current phasor represented by the sum in (2). By considering Fig.…”

Section: Assessment Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Wide-Area Assessment of Aperiodic Small Signal Rotor Angle Stability in Real-Time

Jóhannsson

Nielsen

Østergaard

2013

IEEE Trans. Power Syst.

View full text Add to dashboard Cite

Abstract-This paper presents the details of a new real-time stability assessment method. The method assesses a particular mechanism of stability: each generator's capability to generate sufficient steady state electromechanical torque. The lack of sufficient steady state torque causes aperiodic increase in rotor angle and a loss of synchronism, referred to as aperiodic small signal instability. The paper provides the theoretical background of the method and an analytical assessment criterion. Furthermore, a mathematical mapping of the generators' operating points that enables informative visualization of multiple operating points is derived in the paper. Finally, results from time-domain simulation of instability scenarios in the Nordic32 test system are presented and results used for testing the assessment method. The results illustrate the method's capability to efficiently identify the location of the emerging problem and to quantify margins to stability boundary.Index Terms-Power system measurements, power system monitoring, power system stability.

show abstract

Section: Assessment Methodsmentioning

confidence: 99%

“…Overview of some PMU-related applications is provided in few comprehensive surveys [2]- [4]. The applications cover topics such as real-time monitoring and control, improved state estimation, real-time congestion management, adaptive protection and overload monitoring [3].…”

mentioning

confidence: 99%

Wide-Area Assessment of Aperiodic Small Signal Rotor Angle Stability in Real-Time

Jóhannsson

Nielsen

Østergaard

2013

IEEE Trans. Power Syst.

View full text Add to dashboard Cite

show abstract

“…This will make the planning of secure and stable operation hours ahead no longer feasible and the need for real-time stability assessment tools will arise. In [2], [3], [4] phasor measurement technology is said to be the technology enabling the development of real-time wide area monitoring and control applications [5], [6]. Consequently, recently developed stability assessment methods try to solve the task of on-line security and stability assessment by utilizing synchronized phasor measurements.…”

Section: Introductionmentioning

confidence: 99%

Impact of model detail of synchronous machines on real-time transient stability assessment

Weckesser

Jóhannsson

Østergaard

2013

2013 IREP Symposium Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid

View full text Add to dashboard Cite

In this paper, it is investigated how detailed the model of a synchronous machine needs to be in order to assess transient stability using a Single Machine Equivalent (SIME). The results will show how the stability mechanism and the stability assessment are affected by the model detail. In order to identify the transient stability mechanism, a simulation with a high-order model was used as reference. The Western System Coordinating Council System (WSCC) and the New England & New York system are considered and simulations of an unstable and a stable scenario are carried out, where the detail of the machine models is varied. Analyses of the results suggest that a 4 th -order model may be sufficient to represent synchronous machines in transient stability studies.

show abstract

“…The development of the phasor measurement technology [1], [2], [3] facilitated the research and development of monitoring and control applications that can utilize the wide area measurements of system voltages [4], [5].…”

Section: Introductionmentioning

confidence: 99%