Line Loss Analysis Of Areas With Wind Power System

According to the estimates of the relevant information:the process of electricity from power generation to the power supply has been broad power systems in a variety of electrical equipment (including generators, transformers, power lines, motors, etc.), the total generating capacity have27%-32%lost.2000s, there are3694-4378billion of electricity consumption in the running of electrical equipment, the equivalent of10medium electricity consumption.The line loss can be divided into two parts:one for the inevitable loss, such as power transmission lines, electricity and heat losses due to resistance effect. Another loss of power which can be avoided, such as the grid unreasonable operation mode cause excess wear and tear, stealing,etc. Leakage electrical management case the loss. Let the unreasonable energy losses reduced to a minimum, the electrical energy to the effective and rational use, is one of the targets to be achieved to our electric power enterprises and research scholars.line loss analysis method are based on conventional energy research. Due to the development of distributed energy, especially wind power and solar power development bring challenge to the current grid, line loss analysis, other problems. For example, old analysis method and not be able to consider the bi-directional power flow problems arising from subsequent wind power access point, the capacity of the wind farm, wind farm grid access location problems Power Loss.Based on the currently existing line losses in this series of questions, paper improved a new flow calculation method,this method can solve the above problem better.Firstly, this paper describes the development of wind power and line loss analysis of the status quo, significance of line loss in the theoretical calculation, preliminary analysis of the line loss calculation is a very necessary job. Secondly analysis the basic model in the line and transformer line loss calculation briefly. Then introduced the line loss equivalent resistance analysis method and the improve equivalent resistance method, the volumetric method and the improve characteristics of the equivalent capacity method, comparative analysis that the improvement volumetric method using the partition program was able to meet the the case that wind power access the regional power grid of line loss calculation. The particularity of the wind power grid, taking into account that improve equivalent capacity method is too complex, this paper presents a simple calculation method.This method computational accuracy to meet the theoretical line loss calculation requirements, also be able to handle wind power any moment in the grid bi-directional power flow problems. In-depth analysis the regional power grid of the wind farm capacity, location and voltage level on the grid line loss with this method.