A Load Shedding For Dg Integrated Islanded Power System Utilizing Backtracking Search Algorithm (BSA)

Muhammad Adli, Abdul Razak (2015) A Load Shedding For Dg Integrated Islanded Power System Utilizing Backtracking Search Algorithm (BSA). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In a power system, when the distribution network that connected with distributed generation (DG) is islanded from main grid, there are several issues should be resolved. One of the main issues are in maintaining the voltage and frequency that disturbed and may lead to power collapse. Thus, the common practices to shed certain loads using load shedding scheme. This project proposed a development of an optimal load shedding scheme based on Backtracking Search Algorithm (BSA). To handle this optimization, a multiobjective function considering the linear static Voltage Stability Margin (VSM)as an indicator and also amount of load curtailment is formulated. Besides, it is also handle the load priority case. The performance of proposed load shedding scheme was evaluated through various islands created based on IEEE 69-bus system using MATLAB software. Furthermore, the effectiveness of the proposed scheme was validated and compared using existing optimization such as Genetic Algorithm (GA). The optimization results indicate that the proposed BSA method is more effective in determining the optimal amount of load to be shed in any islanded system with the shortest time which is average of 886.1319 seconds compared to GA with 1083.929 seconds.

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