| How to ensure power system security, economic and reliable manner, has always been committed to the power workers study.Due to voltage instability induced by power grid vulnerable leading to the collapse of enormous economic losses, so the study of voltage stability has very important social meaning.. In this paper, the sensitivity analysis should be used on the grid voltage stability analysis to find the weak voltage region, the inertial factor, the convergent factor as well as the discrete solution set and discrete velocity solution set based on the DPSO are also used to improve the swarm algorithm.Establishing the mathematical model of regional power grid voltage stability weak recovery, Then applying the improved PSO as a tool to IEEE30 nodes and IEEE118 bus system voltage weak regional model of the restoration, which has the ideal result and valuable solution. |
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