Graphical Power Grid Of Theoretical Line Loss Calculation Software Research And Development

The management of line loss is an important work for the power supply utilities. The weak aspects in the operation of the power distribution network and the constitution of the line loss can be found by calculating the theoretical line loss, so that the relevant reasonable measures can be adopted for reducing the theoretical line loss. Moreover, the calculation of theoretical line loss will also play an important role in the reactive power optimization of the power distribution network, the technical revamping of the power network and the calculation of the costs for the electrical power market.Main works as following.1. This thesis aims at analyzing the present researching status and the development trend for the theoretical line loss of the power distribution network both at home and abroad. Several measures for calculating the theoretical line loss, which is applied for the high voltage network and medium and low voltage power distribution network are detailed analyzed in the thesis. With the integrated comparison of their characteristics, suitable models and measures for calculating the theoretical line loss of the high voltage network and medium and low voltage power distribution network are proposed, a graphic theoretical line loss calculation software for electrical network which is based on Microsoft Visio2003 platform is improved here.2. It is studied and used for the technique of secondary development based on Microsoft Visio2003 software in this thesis. According to the mathematic model and algorithm of the theoretical line loss calculation for power network, a new graphical theoretical line loss calculation software is developed which uses Microsoft Visio2003 as development platform and VBA as secondary development tools. The development of software consists of developing of graphic interface, managing of data and realization of line loss program. This new software has characteristics of strong function, good human-computer interaction interface, convenient operation, beautiful graphical effect.3. The typical power distribution networks are selected finally and the theoretical line loss is calculated and analyzed by the aforesaid software.