| Title | Transient Stability Assessment and Dynamic Security Region in Power Electronics Dominated Power Systems |
| Publication Type | Conference Paper |
| Year of Publication | 2022 |
| Authors | Ma, Rui, Zhan, Meng |
| Conference Name | 2022 IEEE International Conference on Power Systems Technology (POWERCON) |
| Keywords | composability, dynamic security region, Dynamical Systems, hyper-plane method, Metrics, phase locked loop, power electronics, Power system dynamics, power system stability, pubcrawl, resilience, Resiliency, security, Stability criteria, Trajectory, transient stability assessment, Voltage, Voltage source converter |
| Abstract | Transient stability accidents induced by converter-based resources have been emerging frequently around the world. In this paper, the transient stability of the grid-tied voltage source converter (VSC) system is studied through estimating the basin of attraction (BOA) based on the hyperplane or hypersurface method. Meanwhile, fault critical clearing times are estimated, based on the approximated BOA and numerical fault trajectory. Further, the dynamic security region (DSR), an important index in traditional power systems, is extended to power-electronics-dominated power systems in this paper. The DSR of VSC is defined in the space composed of active current references. Based on the estimated BOA, the single-VSC-infinite-bus system is taken as an example and its DSR is evaluated. Finally, all these analytical results are well verified by several numerical simulations in MATLAB/Simulink. |
| DOI | 10.1109/POWERCON53406.2022.9929629 |
| Citation Key | ma_transient_2022 |
Transient Stability Assessment and Dynamic Security Region in Power Electronics Dominated Power Systems