Abstract
The paper explains the calculation of voltages and power losses in a Distribution Network (DN) with change of load. Firstly, the optimal location of DG (Distributed Generation) units and size of the DG units are determined using GA at full load. Once the DG units are placed in these locations the voltages and power losses are calculated at various buses with change of load. It is essential to observe the change of voltages because the voltage is one of the inequality constraint in power system. As the load changes, the power losses of DN also change with multiple DG units in DN. In this paper the voltages and power losses of DN are shown with change of load by connecting 10 DG units. GA is used as solving tool. An algorithm for GA programmed in MATLAB. The proposed GA method is implemented on an IEEE-85 bus DN.
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