The invention discloses a new energy automobile charging device and method. The device comprises a rotary transformer, a three-phase inverter, a three-phase motor and a controller. The three-phase motor comprises a U-phase winding, a V-phase winding and a W-phase winding, and the three-phase windings are in triangular connection; the three-phase winding is respectively connected with the midpoints of three-phase bridge arms of the three-phase inverter; the rotary transformer is used for measuring the rotary transformation angle of the three-phase motor; the controller is used for obtaining a flux linkage angle according to the resolver angle, when the power battery pack is charged, the first phase winding and the second phase winding of the three-phase motor are connected in series and then connected with the third phase winding in parallel, and the magnetic flux linkage angle is obtained according to the comparison result of the magnetic circuit angle with the second phase current and the third phase current of the three-phase motor. According to the technical scheme, the low-voltage charging pile can be used for charging the high-voltage power battery pack, and the triangular motor winding is reused to complete boosting.
本申请公开了一种新能源汽车充电装置及充电方法,装置包括:旋转变压器、三相逆变器、三相电机和控制器;三相电机包括U、V和W三相绕组,三相绕组为三角形连接;三相绕组分别连接三相逆变器的三相桥臂中点;旋转变压器,用于测量三相电机的旋变角度;控制器,用于由旋变角度获得磁链角度,在给动力电池组充电时,三相电机的第一相绕组和第二相绕组串联后再与第三相绕组并联,且根据磁路角度分别与三相电机的第二相的电流和第三相的电流比较结果,控制逆变器的第二相桥臂开关管和第三相桥臂开关管,该技术方案能够使用低压充电桩为高压动力电池组充电,并复用三角形电机绕组完成升压。
New energy automobile charging device and charging method
一种新能源汽车充电装置及充电方法
2025-06-27
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
New energy automobile wireless charging device and charging method
European Patent Office | 2024
|Solar charging automobile cover for charging new energy automobile
European Patent Office | 2022
|