The Research On Closing Loop Scheduling And Operation Analysis For MV Distribution Network

When repairing the line or redistribution the load in the distribution network, closing loop operation will generate large loop current and impact current which could affect the system safety directly. So it is necessary to develop a computer-aid decision-making software which can offer some guidance to operators before making the operation, it has pragmatic values. In this paper, we put forward a simplify mode of loop operation and it deduces the calculation of stable current and impact current. At the same time it analyzes the loop power flow and then finds the key factors which affect the loop current is the difference of voltage. It can change the difference of voltage mode according to adjusting the compensation of capacitor and the tap of transformer to reduce the loop current so that it is of control. After researching the closing loop operation completely, we make a closing loop modeling of parts of some lines of DaXing area and then simulate and analyze it.