全寿命周期交直流混合配电网能效分析及诊断方法

Energy Efficiency Analysis and Diagnosis Method of AC/DC Hybrid Distribution Network in the Whole Life Cycle

交直流混合配电网络以具有较强非线性特征的电力电子设备作为不同电压等级的主要连接器件。首先基于交直流混合网络特征进行能效建模,进而推导出各个计算指标与能耗间具有物理意义的确定性关系,提出在全寿命周期中各个对应阶段生成可行的、可改善运行能效、优化配置的分析及诊断方法。最后,根据实际拓扑,在全寿命周期选取运行阶段验证所提方法的有效性和可行性,为实际交直流混合配电网的能效分析和诊断提供参考和建议。

AC-DC hybrid distribution network uses power electronic devices with strong nonlinear characteristics as the main connecting devices of different voltage levels.Based on the characteristics of the AC-DC hybrid network,modeling of energy efficiency is performed,and then the certainty relation with physical meaning between energy consumption and calculation index is deduced.It is proposed to generate,in each corresponding stage of the whole life cycle,analysis and diagnosis methods that are feasible and can improve operating energy efficiency and optimize the configuration.Finally,according to the actual topology,the validity and feasibility of the proposed method are verified through the operation stage chosen in the whole life cycle to provide a reference and suggestion for the energy efficiency analysis and diagnosis of the actual AC-DC hybrid distribution networks.