Wide-Area Electric Grid Visualization Using Pseudo-Geographic Mosaic Displays

Overbye, Thomas J.; Wert, Jessica L.; Birchfield, Adam B.; Weber, Judy

doi:10.1109/naps46351.2019.8999970

Cited by 12 publications

(4 citation statements)

References 20 publications

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“…5. The row and column locations of the PGMDs approximately represent the object's geographic location [25], and the size of each rectangular is designed to be proportional to it's real power output in this case. The 544 generators are colored differently according to their fuel types.…”

Section: A Case I -2000-bus Casementioning

confidence: 99%

“…Fig.5. Pseudo-geographic mosaic display of the 2000-bus case[25]Wind, Solarandwith (a) 0% transitioned (b) 25% transitioned (c) 100% transitioned 1) Voltage Deviations at a PV Plant: Fig.6shows the simulation results for a PV plant with five individual solar generators experiencing a voltage drop event caused by bus fault at the POI. The event starts at 1.00s and is cleared at 1.05s.…”

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confidence: 99%

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Integration of Renewable Generators in Synthetic Electric Grids for Dynamic Analysis

Liu,

Mao,

et al. 2021

Preprint

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This paper presents a method to better integrate dynamic models for renewable resources into synthetic electric grids. An automated dynamic models assignment process is proposed for wind and solar generators. A realistic composition ratio for different types of wind turbine generators (WTG) is assigned to each wind generator. Statistics summarized from real electric grid data form the bases in assigning proper models with reasonable parameters to each WTG. A similar process is used to assign appropriate models and parameters to each photovoltaic (PV) generator. Multiple control strategies of the renewable resources are considered and tested in case studies. Two large-scale synthetic network test cases are used as examples of modeling the dynamics of renewable generators. Several transient stability metrics are adopted to assess the stability level after being subject to N-1 contingency event. Representative contingency events are given to demonstrate the performance of the synthetic renewable generator models.

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Section: A Case I -2000-bus Casementioning

confidence: 99%

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confidence: 99%

Integration of Renewable Generators in Synthetic Electric Grids for Dynamic Analysis

Liu,

Mao,

et al. 2021

Preprint

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“…Work that specifically looks at visual quality without regard to geographic layout includes [35,36]. These layout methods can apply not only to network diagrams but also to visualization of other datasets, as in mosaic tile displays [37,38]. In addition, recent work has shown additional work in automatic network layouts using parallel fast methods [39] and linear programming [40].…”

Section: Introductionmentioning

confidence: 99%

Geographic coordinate validation and assignment using an edge-constrained layout

Birchfield

2024

J. Eng. Appl. Sci.

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Electric grids with buses that are mapped to geographic latitude and longitude are useful for a growing number of applications, such as data visualization, geomagnetically induced current calculations, and multi-energy coupled infrastructure simulations. This paper presents a methodology for validating the quality of geographic coordinates for a power system model, and to assign coordinates to buses with missing or low-quality coordinates. This method takes advantage of geographic indicators already intrinsic to a grid model, such as branch length as implied by impedance and susceptance parameters. The coordinate assignment process uses an approach inspired by graph drawing, that lays out the vertices (buses) and edges (transmission lines), formulated as a nonlinear programming problem with soft edge length constraints. The layout method is very computationally fast and scalable to large power system cases. The method is demonstrated in this paper using a 37-bus test case and a 6717-bus test case, both publicly available, along with a large actual grid model. The results show that, for cases with only a few errors in the coordinates, cases with no coordinates known beforehand, and others in between, this method is able to assign reasonable geographic coordinates to best match known data about the grid.

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“…Geographic rectangular cartograms are also similar to the present approach [2], [15]- [16], but these focus on distorting shapes to show relative density, rather than placing discrete objects. The mosaic diagrams described in this paper build on the initial work in [17], which uses a simple method to draw the mosaic in rows and columns to fill the whole screen. A fundamental assumption of the mosaic displays in this paper is that geographic context is a key aspect of situational awareness.…”

Section: Introductionmentioning

confidence: 99%