Study on Power Flow Calculation and Voltage Profile in Distribution System with Distributed Generation

The development of distributed generation (DG) has a great influence on the traditional power systems and received considerable attention in recent years. After interconnected DG, the voltage maybe to rise along the feeder, and has serious potential impacts on distribution system. This paper introduction the algorithm based on distributed slack buses model through adjusted Newton-Raphon, the participated DGs and the substation are common to allocate the power losses by the participation factors. The characteristic of power flow will change as DG paralleled, and researched the impact of DG on distribution system such as loss and node voltage. The results are analyzed comparatively with traditional algorithm, and proved the feasibility of the method proposed.