The invention discloses an electric vehicle charging pile based on a distributed embedded physical information neural network and a parameter solving algorithm of a power transmission system of the electric vehicle charging pile. The method comprises the following steps: acquiring message data of a battery management system (BMS) and corresponding charging order data when an electric vehicle is charged, and electric energy consumption of a lower-level ammeter of a transformer in a transformer area in a corresponding metering period; constructing a mapping matrix from an order to a charging characteristic of the order by using a nonlinear relationship between a convolutional pooling operation and learnable full-connection fitting charging data characteristic and order data; a plurality of parallel prediction models are constructed by adopting a distributed structure, and data division of different charging stages is realized by utilizing an inter-class maximum clustering index; and embedding the physical information into a neural network and constructing a joint loss function to complete optimal solution of the two parameters of the electric vehicle charging system. The method is superior to other traditional methods in parameter solving of the power transmission system, that is, various dynamic nonlinear relations between the electric vehicle serving as a dynamic load in the charging process and the line loss rate of the power transmission system are fully considered; and meanwhile, the coupling relationship between the line loss rate of the power transmission system and the working error of the charging pile is relieved by adopting two-parameter synchronous solution.
本发明公开了一种基于分布式内嵌物理信息神经网络的电动汽车充电桩及其输电系统的参数求解算法。采集电车充电时电池管理系统(BMS)的报文数据和对应充电订单数据,以及对应计量周期内台区变压器下1级电表的电能用量。利用卷积池化运算与可学习的全连接拟合充电数据特性与订单数据之间的非线性关系,构建订单至其充电特性的映射矩阵;采用分布式结构构建多个并行的预测模型,利用类间最大的聚类指标实现不同充电阶段数据的划分;将物理信息内嵌入神经网络并构建联合损失函数,完成电车充电系统双参数的最优求解。本发明在输电系统参数求解中优于其他传统方法,即充分考虑电动汽车在充电过程中作为动态负载,与输电系统线损率之间具有多种动态非线性关系;同时采用双参数同步求解缓解了输电系统线损率和充电桩工作误差之间的耦合关系。
Electric vehicle charging pile and parameter solving algorithm of power transmission system of electric vehicle charging pile
一种电动汽车充电桩及其输电系统的参数求解算法
2024-08-09
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |