场景削减技术在配电网损耗分析中的应用

Application of Scene Reduction Technology in Loss Analysis of Power Distribution Network

配电网中风机接入量不断增加,而含风电的配电线路损耗分析需要求解大量系统状态情况,存在计算量大的问题。笔者提出基于场景削减技术的系统损耗分析方法。首先由实际风速数据和风机功率模型求解风机输出功率;然后采用场景削减技术将风机输出功率削减为8个风功率场景;最后将风功率场景应用于系统损耗计算中,并与所有风机输出功率情况下系统损耗值对比,说明所提方法的有效性。

The fan access capacity of power distribution network is increasing. However, the distribution line loss analysis with wind power needs to solve a large number of system states, and there is a large amount of calculation. This paper proposes a method of system loss analysis based on scene reduction technology. Firstly, the output power of the fan is calculated from the actual wind speed data and the fan power model. Secondly, the output power of the fan is reduced to 8 wind power scenarios by scene reduction technology. Finally, the wind power scenario is applied to the system loss calculation, and compares with the system loss value under all the fan output power cases to illustrate the effectiveness of the proposed method.