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Large-Signal Stability Modeling for the Grid-Connected VSC Based on the Lyapunov Method

doi: 10.3390/en11102533
In this paper, a Lyapunov-based method is used in order to determine the stability boundaries of the grid-connected voltage source converter (VSC). To do so, a state space model of the VSC is used to form the Lyapunov function of the system. Then, by using the eigenvalues of the Lyapunov function, the system stability boundaries will be determined. It is shown that the grid-connected VSC works in its stable mode when all of its Lyapunov function’s eigenvalues are positive. The proposed model validity is tested by time-domain simulation. Simulation results show that the method is credible in determining the stability margin of the grid-connected VSC.
Technology, T, voltage source converter (VSC), energy function (EF), Voltage Source Converter (VSC), Energy Function (EF), Lyapunov-based stability analysis, voltage source converter (VSC); energy function (EF); Lyapunov-based stability analysis
Technology, T, voltage source converter (VSC), energy function (EF), Voltage Source Converter (VSC), Energy Function (EF), Lyapunov-based stability analysis, voltage source converter (VSC); energy function (EF); Lyapunov-based stability analysis
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).21 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
