The reasonable transmission efficiency of power grid considering to the security constraint

The reasonable transmission efficiency of power grid was analyzed considering to N-1 and power outrage risk constraint respectively in this paper. The representative index of security and efficiency had been selected to reflect the condition of power grid. In the aspect of security, the N-1 Pass ratio represented the determinacy index and the power outage risks represented a non-determinacy index were used to evaluate the security of grid, the transformer and power line load ratio was used to assess the efficiency of power grid. The relation between security and efficiency of power grid with unchanging framework was studied. The efficiency of considering to N-1 constraint was obtained through the optimal growth load. The variation ratio are defined to seek the rapidly increase point of security relative to efficiency, and the reasonable transmission efficiency of power grid considering to the power risk outrage constraint was found out by the variation ratio.

[1]  Ian Dobson,et al.  Evidence for self-organized criticality in electric power system blackouts , 2001, Proceedings of the 34th Annual Hawaii International Conference on System Sciences.

[2]  Gang Wang,et al.  An Improved OPA Model and Blackout Risk Assessment , 2009, IEEE Transactions on Power Systems.

[3]  Hou Yun-he.  A Power System Blackout Model Based on OTS and Its Self-organized Criticality , 2007 .

[4]  Ian Dobson,et al.  Examining criticality of blackouts in power system models with cascading events , 2002, Proceedings of the 35th Annual Hawaii International Conference on System Sciences.

[5]  Benjamin A Carreras,et al.  Complex systems analysis of series of blackouts: cascading failure, critical points, and self-organization. , 2007, Chaos.

[6]  Daniel S. Kirschen,et al.  Optimising the balance between security and economy on a probabilistic basis , 2010 .

[7]  Hui Li,et al.  The force-dynamic relation study between security and efficiency of power grid based on the evaluation model , 2014, 2014 International Conference on Power System Technology.

[8]  Ian Dobson,et al.  Evidence for self-organized criticality in a time series of electric power system blackouts , 2004, IEEE Transactions on Circuits and Systems I: Regular Papers.

[9]  Dong Peng,et al.  The Relationship among the Security, Efficiency and Adequacy of Electrical Power Grid Based on the Novel Evaluation Method , 2014 .

[10]  Javier Contreras,et al.  A Chance-Constrained Unit Commitment With an $n-K$ Security Criterion and Significant Wind Generation , 2013, IEEE Transactions on Power Systems.

[11]  Cao Lihua.  A Cascading Failures Model in Power Grid Considering Topology Evolvement , 2009 .

[12]  Ni Xiang-ping.  Several new progresses on the complexity research of the interconnected power network , 2008 .