Research on Electric Charge Calculation Model Considering Harmonic Characteristics of High-speed Railway
At present,Chinese high-speed railway traction power supply system mainly adopts the charging method of large in-dustrial users,including basic electric charge,active power charge,power factor reward and punishment charge,surcharge and other four parts.It does not consider the impact of high-speed railway harmonic on electric charge measurement.In order to make up for this shortcoming,this paper optimizes the electric charge calculation model considering the harmonic characteristics of high-speed railway.Based on the measured data,this paper analyzes the harmonic characteristics of the whole operation process of the high-speed railway during start-up,traction,braking and stopping.In order to accurately divide the harmonic re-sponsibilities of the system side and the high-speed railway side,different responsibility allocation methods are adopted accord-ing to different harmonic characteristics.On the basis of the current large industrial charging methods,the electric charge cal-culation and optimization model considering different operating conditions of harmonic responsibility is established and verified by simulation.By comparing with the current charging method and the charging method which do not consider the running state of high-speed railway,the rationality and accuracy of the method in this paper are verified,which is helpful to promote the fur-ther development of refined metering of high-speed railway electric charge.
high-speed railway traction systemharmonic characteristicharmonic responsibilityelectric charge calculation model
万方数据
维普
