Analysis Of Electric Network Loss Impact Factor

The electric network loss was a main problem economical operation of power systems faced,it was also an important measure of the production and operation for the power supply enterprise,so the analysis of network loss problem was the primary direction for the research.Nowadays,the power system network loss was mainly made up of two big loss,it was ac transmission line losses and transformer losses,and both could be divided into two parts as fixed and variable loss.Accurate analysis of the network loss and the calculation method could judge the degre e of influence qualitatively then calculate the value quantitatively.Judged the loss reduction potential of the power system through mastering the composition of network loss and characteristics of the distribution.The corresponding loss reduction could be put forward through the study of network loss analysis results at the same time.The paper used sensitivity analysis method to improve the analysis of network loss on the basis of traditional theoretical network loss analysis,and it was proved effective b y the actual experimental results,the main research content of this paper was as follows:First,the paper explained the effect factors of the network loss in the process of traditional theoretical analysis,analyzed all the factors effect the network loss a nd the influence degree.The paper pointed out the various causes of the change of network loss and the high network loss rate,then the corresponding effective loss reduction measures were put forward.Second,the paper derived the sensitivity of the current, voltage and many other network parameters to the loss.Through the analysis method of sensitivity for network loss,we could determine the influence of changed network parameters on the network loss,proved an easier analyzed method for the network loss.We could get the influence to the network loss of which parameters changed was bigger and calculate the size of the network loss caused by the original parameters changed avoided the problem of iteration and convergence of flow calculation.Last,the paper proposed basic principle of the loss reduction for the power system mainly for the actual operating conditions of Heilongjiang Power Grid.The loss reduction measures and future planning proposals for the current operation of Heilongjiang Power Grid was proposed.