Research on Line Loss Calculation of High Penetration New Energy Distribution Network with Improved Energy Quantity Method and Forward Push-back Method
Research on Line Loss Calculation of High Penetration New Energy Distribution Network with Improved Energy Quantity Method and Forward Push-back Method
The high penetration of Distributed Generation(DG)leads to bidirectional power flow in distribution networks,which rendering traditional line loss calculation methods inadequate.Firstly,in view of the limitation of the assumption that voltage and power factor should be consistent in the whole network,the voltage-power method and the voltage-power factor method are proposed.Then,various types of DG are modeled,and an improved back forward sweep method is proposed to achieve accurate and detailed line loss calculation in distribution networks with high penetration.Finally,the calculations are conducted on an ac-tual distribution line in a certain region to assess the accuracy and applicability of different line loss calculation methods.Fur-thermore,through comparative analysis of three scenarios,the impact of DG integration capacity,location,and other parameters on network voltage and line losses is explored,and the feasibility of the improved quantity method and the improved push-back method is verified,which is of great significance for the line loss calculation of the distribution network.
关键词
高渗透率光伏配电网/线损计算/改进前推回代法/电压电量法/电压功率因数电量法
Key words
distribution network with high PV penetration/line loss calculation/improved forward-backward substitution meth-od/voltage and electricity method/voltage power factor and electricity method
维普
万方数据