The invention relates to a bidirectional wireless electric energy transmission system and method based on a variable coupling compensation network, belongs to the technical field of wireless electric energy transmission, and solves the problem that in the prior art, high transmission power, transmission efficiency and transmission characteristics meeting requirements are difficult to stably obtain under the condition that the mutual inductance coefficient and the load change range are large, and the transmission efficiency is poor. And a transmission system is complex in structure and control and high in manufacturing and maintenance cost. The variable coupling compensation network can be switched among a plurality of topological structures, the maximum transmission power and the mutual inductance coefficient of each topological structure and the relation between the input voltage of the primary side converter and the input voltage of the secondary side converter are different, and the variable coupling compensation network can be switched to the compensation network meeting the requirement only by adjusting the control switch based on different electric energy transmission strategies. Therefore, even under the condition that the mutual inductance coefficient and the load change range are relatively large, relatively high transmission power, relatively high transmission efficiency and relatively high transmission characteristics meeting the requirements can be stably obtained; the structure is simple, and manufacturing and maintenance cost is low.
本发明涉及一种基于可变耦合补偿网络的双向无线电能传输系统及方法,属于无线电能传输技术领域,解决了现有技术中当互感系数、负载变化范围较大的情况下,难以稳定地获取较高的传输功率、传输效率和符合需求的传输特性,且传输系统结构与控制复杂,制造及维护成本高的问题。本发明的可变耦合补偿网络可在若干拓扑结构中切换,且各拓扑结构的最大传输功率与互感系数以及原、副边变换器输入电压的关系各不相同,基于不同的电能传输策略,仅通过调整控制开关,即可切换至满足需求的补偿网络,进而可以保证即使在互感系数、负载变化范围较大的情况下,也能稳定地获取较高的传输功率、传输效率和符合需求的传输特性;结构简单,制造和维护成本低。
Bidirectional wireless power transmission system and method based on variable coupling compensation network
基于可变耦合补偿网络的双向无线电能传输系统及方法
2024-08-30
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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