PingXiang City Distribution Network Planning

With the Chinese to build strong and smart grid concept put forward reasonable network planning is to ensure that the premise of strong grid, many experts and scholars at home and abroad are some of network planning technology began to conduct research, and has made great progress, made a lot of practical reliable network planning algorithms.Grid planning work of the preliminary work is forecasting electricity demand, electricity demand forecasts only accurate to get the best planning, so electricity demand forecasting and network planning are equally important. Based on the analysis of the domestic electricity demand forecasting and network planning under the premise of the grid for the case of Pingxiang, Pingxiang city on the grid was planned. Pingxiang city power grid for the characteristics and location of the division, Pingxiang city is divided into Zone, Anyuan District and Xiangdong three zones. Electricity demand forecast using regression analysis, and engineering consultation gray prediction method using three methods combined, Electricity consumption estimation using regression analysis, and engineering consultation gray prediction method three methods, the power load forecasting using regression analysis method, gray prediction method and BP neural network are three methods, both according to the different characteristics of the three methods, take three predictions weighted approach arrive at a final prediction results to improve the prediction accuracy. Network planning, the three cases discussed, namely, high urban distribution network planning, medium voltage and low voltage distribution network planning urban urban distribution network planning, the characteristics of different voltage levels, the model takes into account the transmission lines, distribution transformers, capacity-load ratio, etc. Finally, Pingxiang city power grid planning rehabilitation programs.