基于评价序列矩阵SVD优化标杆的电网企业线损闭环管理分析

Line Loss Closed-Loop Management Analysis of Power Grid Enterprises Based on SVD Optimization Benchmark of Evaluation Sequence Matrix

选择某网区内的50家市级电网企业开展了线损管理方面的计算,同时对市网企业开展线损管理研究,以此确认有效性。建立由企业纵向对标与最优标杆横向对标构成的对标模式,对参评企业选择的降损模式进行分析,获得具体降损措施,提升对标模式的精细化、层次化水平,有助于今后更方便地开展各项线损管理工作。当矩阵阶次变大后,奇异熵E将会发生单调递增的现象,在信息矩阵S中的7种综合评价算法具有明显的独立性;当矩阵阶数达到8时,将处于一个相对饱和的状态。DPS变压器存在明显的无功补偿不足缺陷,无功流动会使电网中形成有功损耗,不同的电压值将会直接影响到可变与不变线损。根据就近原则降低无功远距离的传输线路,新增装置有效降低电压损耗,提升线路输电性能。

In order to confirm the effectiveness,50 municipal power grid enterprises in a certain grid network area were selected to carry out the calculation of line loss management,and at the same time,the line loss management of municipal power grid enterprises was studied.The benchmarking mode of vertical benchmarking and the best horizontal benchmarking was established by the enterprise,analyzing the mode of loss reduction for evaluation enterprise,obtaining specific loss reduction measures,as well as improving the level of refinement of the benchmarking mode,which will be more convenient to carry out line loss management work in the future.When the order of the matrix becomes larger,singular entropy E will increase monotonically,and the seven comprehensive evaluation algorithms in the information matrix S have an obvious independence.When the order of the matrix reaches eight,it will be in a state of relative saturation.The DPS transformer has obvious deficiency of reactive power compensation.The reactive power flow will lead to active power loss in the power grid.The different voltage values will directly affect variable and constant line loss.According to the nearby principle,the reactive power long-distance transmission line can be reduced,and the new device can effectively reduce the voltage loss and improve the transmission performance of the line.