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Title
On DC -Segmentation of Interconnected Power SystemsSegmentation of Interconnected Power
Type of Research Article
Keywords
Power System DC-segmentation, HVDC supplementary controller, Imperialist Competitive Algorithm, Optimization, Blackout.
Abstract
The ultimate goal of power system operation and planning is to increase power system reliability which enforces interconnected operation of power system. As a result of power system interconnection, the inter-area oscillation under different disturbances may cause power system partial or total blackout. DC-segmentation of interconnected power systems is a solution in which the topology of the network is changed by dividing it into small segments, and connecting them by DC-links. From the dynamic operation and planning aspects of the power system, the controllability of the system at the presence of multiple HVDC links used for segmented power system is a complicated problem. In this paper a procedure to study the concept of power system DC-segmentation using the DC-links as a grid shock absorber is introduced. A well-established evolutionary technique, namely imperialist competitive algorithm (ICA) is used to design a HVDC supplementary controller for a non-segmented interconnected power system. The performance of the controller and the DC-segmented system is investigated after DC-segmentation. The obtained results show the potential value of using supplementary controllers in the DC-segmented power networks
Researchers Reza Gholizadeh Roshanagh (First Researcher)، Sajad Najafi Ravadanegh (Second Researcher)