Optimal control of power system overload considering energy storage and electrothermal characteristics of transmission lines
To solve the problems of line overload tripping and cascading faults caused by power flow transfer in power systems， an optimal control strategy for grid overload considering energy storage and electrothermal characteristics of transmission lines is proposed. Firstly， the variation of electrothermal...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
zhejiang electric power
2023-09-01
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| Series: | Zhejiang dianli |
| Subjects: | |
| Online Access: | https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=bce25dfb-3131-4b10-8150-67c59634c1a6 |
| Summary: | To solve the problems of line overload tripping and cascading faults caused by power flow transfer in power systems， an optimal control strategy for grid overload considering energy storage and electrothermal characteristics of transmission lines is proposed. Firstly， the variation of electrothermal characteristics of transmission lines is analyzed. Based on meteorological data from various observation stations covered by transmission corridors in practical power grids， a method for calculating conductor temperatures considering meteorological distribution is formulated to enhance the accuracy of estimating line overload capacity. Furthermore， to minimize the control cost， an optimized control model incorporating energy storage for power system overload is established. The simulated annealing particle swarm optimization algorithm is used to solve the model， swiftly determining the optimal control and adjustment quantities and thereby fully leveraging the energy storage regulation capability and line overload tolerance capacity to effectively prevent cascading faults in the power grid. Finally， the effectiveness of the proposed control method is validated using the improved IEEE 39-node system. |
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| ISSN: | 1007-1881 |