چکیده
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The main objectives of distribution network reconfiguration are real power loss reduction and relieving the overload.
As well, integration of distributed generation (DG) units and fixed/switched capacitor banks are effective options for
operation cost reduction, reducing system losses, improving voltage profile and increasing voltage stability index in
the distribution systems. Therefore, simultaneous network reconfiguration, optimal placement of DG units and
fixed/switched capacitor banks are proposed in this paper. The dedicated genetic algorithm is proposed for
simultaneous network reconfiguration and allocation of DG units and fixed/switched capacitor banks in distribution
systems considering different load levels. The proposed approach is able to find good network configurations and
determine the optimal site and size of DG units and fixed/switched capacitor banks in distribution systems,
simultaneously. The considered objective function encompasses the total cost of power loss, the investment and
operation costs of DG units, the installation cost of fixed/switched capacitor banks and cost of purchased active power
demand from upstream network. The proposed method is applied to 69-bus distribution system. The simulation results
and comparison of different scenarios reveals that the simultaneous network reconfiguration and allocation of DG
units and fixed/switched capacitor banks, results in significant advantages in the total cost.
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