Transient Energy of an Individual Machine PART II: Potential Energy Surface

Songyan Wang*, Jilai Yu, Aoife M. Foley, Wei Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this second paper, the individual-machine potential energy surface is established. The constant- $\theta _{i}$ angle surface of the machine is found in the angle space. Because the individual-machine potential energy is strictly zero in this angle surface, the constant- $\theta _{i}$ angle surface has a significant effect on the shape of the individual-machine potential energy surface. That is, the individual-machine potential energy surface is separated by a flat land, and mountains and valleys are located on either side of this flat land. In addition, a zero- $f_{i}$ angle surface also exists in the individual-machine potential energy surface. The individual-machine potential energy reaches a minimum or maximum at the surface. Using a scissor angle surface, the individual machine potential energy boundary that reflects the maximum individual-machine potential energy is obtained through the cut of the zero- $f_{i}$ angle surface. The machine becomes unstable after the system trajectory goes through the individual machine potential energy boundary. In the end, key concepts and distinctive phenomena in the individual-machine studies are fully explained using the concept of individual-machine potential energy surface.

Original language English 60223-60243 21 IEEE Access 9 https://doi.org/10.1109/ACCESS.2021.3073117 Published - 14 Apr 2021

Keywords

• individual machine
• potential energy surface
• transient energy
• Transient stability

ASJC Scopus subject areas

• Computer Science(all)
• Materials Science(all)
• Engineering(all)

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