LI Peng,WANG Jiahao,XU Xian,et al.Robust Reactive Power Partitioning Method for Frequent Power Flow Fluctuation in New Power System[J].Automation of Electric Power Systems,2022,46(11):102-110.
LI Peng,WANG Jiahao,XU Xian,et al.Robust Reactive Power Partitioning Method for Frequent Power Flow Fluctuation in New Power System[J].Automation of Electric Power Systems,2022,46(11):102-110. DOI: 10.7500/AEPS20210707004.
Robust Reactive Power Partitioning Method for Frequent Power Flow Fluctuation in New Power System
With the substantial increase in the penetration rate of renewable energy and flexible loads
the random fluctuation of power system operation has increased
and the power grid operation form and system characteristics have changed greatly. Aiming at overcoming the shortcomings of the traditional reactive power partitioning method in matching the dual characteristics variation on both source and load sides
a robust reactive power partitioning method for the frequent power flow fluctuation in the new power system is proposed. By taking into account the physical characteristics of the power system
the topology characteristics of the power grid are used to increase the robustness of the network partition. First
a parameter called “hybrid edge weight” is proposed to define the edge weight of reactive power network topology to provide a scale for the grid structure partition. Then
a power grid partitioning process based on the parallel GN algorithm is designed
and a new partitioning connectivity judgment strategy based on the reachable matrix is introduced. Finally
the IEEE standard system is used as an example to analyze the characteristics of hybrid edge weight parameters
and an actual power grid in a certain area of Eastern China is used as an example to verify. The results show that the designed reactive power partitioning strategy can obtain the high-quality partitioning results in a biased manner
and can effectively stabilize the partitioning boundary nodes under the frequent power flow fluctuation.
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