Synchrophasor monitoring of single line outages via area angle and susceptance

Darvishi, Atena; Dobson, Ian

doi:10.1109/naps.2014.6965357

Cited by 6 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that, as discussed further in [10], (3) uses the weights w calculated from the susceptance matrix and area susceptance evaluated before the outage of line i, but it uses the border buses angles θ (i) m measured after contingency i. The susceptance matrix and an updated topology of the area before the outage are generally available to a control center [11].…”

Section: B Formulationmentioning

confidence: 99%

“…These lines are typically near big generation and load inside the area so that their outage changes the local transfer of power. The area angle is approximately related to the susceptance of the area [10] and to the bulk transfer of power through the area, not the local power transfer. The other reason for these outliers is lack of coordination between the line limits and the susceptance of the area.…”

Section: Boundarymentioning

confidence: 99%

“…We discuss this relationship in detail in [10]. w in (1) is a row vector of weights that depend only on the area topology and the susceptances of lines in the area.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Area angle can monitor cascading outages with synchrophasors

Darvishi

Dobson

2015

2015 IEEE Power &Amp; Energy Society Innovative Smart Grid Technologies Conference (ISGT)

Self Cite

View full text Add to dashboard Cite

We monitor the severity of multiple line outages inside an area of the power system according to the limitations on a bulk power transfer through the area when the outages occur. The monitoring combines together synchrophasor measurements around the border of the area to form an angle across the area that can be tracked in real time. This is an approach based on physical principles to extract actionable information by suitably combining synchrophasor measurements. We show the capabilities of the method on a model of the WECC system on an area with approximately 500 lines. Abstract-We monitor the severity of multiple line outages inside an area of the power system according to the limitations on a bulk power transfer through the area when the outages occur. The monitoring combines together synchrophasor measurements around the border of the area to form an angle across the area that can be tracked in real time. This is an approach based on physical principles to extract actionable information by suitably combining synchrophasor measurements. We show the capabilities of the method on a model of the WECC system on an area with approximately 500 lines.

show abstract

Section: B Formulationmentioning

confidence: 99%

Section: Boundarymentioning

confidence: 99%

See 1 more Smart Citation

Area angle can monitor cascading outages with synchrophasors

Darvishi

Dobson

2015

2015 IEEE Power &Amp; Energy Society Innovative Smart Grid Technologies Conference (ISGT)

Self Cite

View full text Add to dashboard Cite

show abstract

“…As we can see, the area susceptance and area angle are inversely related. We discuss this relationship in detail in (39). It is important to choose the area so that the area angle is meaningful and useful for power systems operation.…”

Section: Simple Example Of Stress Monitoring Using Area Anglementioning

confidence: 99%

Monitoring of single and multiple line outages with synchrophasors in areas of the power system

Darvishi¹

Self Cite

View full text Add to dashboard Cite

When power grids are heavily stressed with a bulk power transfer, it is useful to have a fast indication of the increased stress when multiple line outages occur. Reducing the bulk power transfer when the outages are severe could forestall further cascading of the outages. Phasor measurement units (PMUs) are vital elements for monitoring and control of these heavily stressed power system. This work presents a new approach to implement and utilize PMU information to monitor operational transfer capability and limits based on voltage phasor angles with respect to thermal limits of transmission lines. This work demonstrates an algorithm to obtain thresholds based on the angle and then quickly deploy PMU data to monitor stress changes due to single and multiple outages in real time to send fast notification of emergency situations. Area angle uses the topology and the synchronized measurements of angles across an area of power system to measure stress caused by outages within the area. The proposed

show abstract

“…Then the amount of power to be injected into the border buses is the minimum of injections across all the lines. The amount of power to be injected at the border bus such that line k reaches its maximum power limit depends on the generation shift factor of line k. According to equation (8) in (10) the generation shift factor for line k with respect to injections at border buses is given by…”

Section: Robustness To Changing Stress Directionmentioning

confidence: 99%

Threshold-based synchrophasor monitoring of multiple outages on a detailed WECC system using area angle

Chiluka

View full text Add to dashboard Cite

Synchrophasor monitoring of single line outages via area angle and susceptance

Cited by 6 publications

References 9 publications

Area angle can monitor cascading outages with synchrophasors

Area angle can monitor cascading outages with synchrophasors

Monitoring of single and multiple line outages with synchrophasors in areas of the power system

Threshold-based synchrophasor monitoring of multiple outages on a detailed WECC system using area angle

Contact Info

Product

Resources

About