Optimal Placement of Line Switches for Distribution Automation Systems Using Immune Algorithm

Authors:
  • CLChia-Hung Lin
    Chia-Hung Lin
  • HCHui-Jen Chuang
    Hui-Jen Chuang
  • CLChung-Sheng Li
    Chung-Sheng Li
  • MHMing-Yang Huang
    Ming-Yang Huang
  • CHChia-Wen Huang
    Chia-Wen Huang
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Abstract
To enhance the cost effectiveness of the distribution automation system (DAS), this paper proposes the immune algorithm (IA) to derive the optimal placement of switching devices by minimizing the total cost of customer service outage and investment cost of line switches. The reliability index of each service zone defined by the boundary switches is derived to solve the expected energy not served due to fault contingency, and the customer interruption cost is then determined according to the customer type and power consumption within the service zone. To demonstrate the effectiveness of proposed IA methodology to solve the optimal placement of line switches, a practical distribution system of Taiwan Power Company (Taipower) is selected for computer simulation to explore the cost benefit of line switch placement for DAS

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