Study On Energy Saving Of Distribution Network In A Town Of Dongguan

As the goal of energy saving and planning are clearly proposed in the China's Eleventh Five-Year Planning, How to scientifically use and Optimize reactive power resources of distribution network, lower operation loss and improve power quality, has become an important component for Power supply enterprises management. Distribution network is the end part of power system which directly confronts user, its power reliability, power quality and operation economy directly relate to the vast number of users and the economic and social benefit about the power enterprise. Optimization of reactive power compensation plan is an effective method for energy saving and improving power quality. In the current, lacking reactive power compensation equipment, the distribution of irrational and inefficient switching are the actural circumstance to distribution network, so reasonably optimizing the plan of reactive power compensation can bring a huge economic and social benefit.At first, this thesis research on the necessity and feasibility of the issue. Secondly, this thesis systematically expounds the relationship between six factors and distribution network lossess, such as the operating voltage, wire model, distribution transformer, three-phase unbalance, load fluctuations and the capacitor. Finally, an mathematical model for distribution network energy saving is presented, whose object is to minimize the total operation cost, then Cataclysmic Genetic Algorithm is adopted to solve this problem.At the end, this thesis uses the energy saving software for analyzing three typical lines in one of Dongguan's town, explores the economic effect can be achieved by the energy saving program, Systemly assess the potential. The numerical result shows that the proposed model is valid and the algorithm is effective.