The invention discloses a circuit topology structure capable of switching constant-current and constant-voltage charging. The structure is realized through a variable static compensation method. The structure comprises a primary side LCL resonant structure composed of an inductor L1, a primary side compensation inductor L1v and a capacitor Cp under constant voltage output configuration, a primary side coupling inductor Lp and a primary and secondary side coil compensation capacitor C1, a secondary side compensation inductor L2, and compensation capacitors Csc and Csv under constant current and constant voltage output configuration. And the secondary side LCL resonant structure is formed by the primary and secondary side coil compensation capacitor C2 and the secondary side coupling inductor Ls. When the system is used, the S1 is connected with the contact 1, the S2 is connected with the contact 3, and the system works in a constant-current output mode; and when the S1 is connected with the contact 2 and the S2 is connected with the contact 4, the system is in a constant-voltage output working mode. By means of the scheme, the use requirement for switching of constant-current and constant-voltage charging of the electric vehicle can be met.
本发明公开了一种恒流恒压充电可切换的电路拓扑结构,所述结构通过变静态补偿法实现。其中,所述结构包括由电感L1、恒压输出配置下原边侧的补偿电感L1v与电容Cp及原边侧耦合电感Lp、原副边线圈补偿电容C1共同组成的原边侧LCL谐振结构和副边侧的补偿电感L2、恒流与恒压输出配置下的补偿电容Csc和Csv、原副边线圈补偿电容C2及副边侧耦合电感Ls共同组成的副边侧LCL谐振结构。本申请方案在使用的时候,当S1接通触点1,S2接通触点3,系统工作在恒流输出模式;当S1接通触点2,S2接通触点4,系统处于恒压输出的工作模式。使用本申请方案能够实现对电动汽车的恒流恒压充电可切换的使用需求。
Circuit topology structure capable of switching constant-current and constant-voltage charging
一种恒流恒压充电可切换的电路拓扑结构
2023-10-17
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
European Patent Office | 2022
|European Patent Office | 2022
|European Patent Office | 2023
|European Patent Office | 2022
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