本发明涉及一种电动汽车无线充电耦合线圈双边LCC拓扑网络参数设计方法,确定无线充电耦合线圈谐振频率f;设定原边线圈自感与原边串联补偿电感的比值为α,副边线圈自感与副边串联补偿电感的比值为β;在满足第一、第二约束条件的情况下,选择若干组α、β、原/副边并联补偿电容和原/副边串联补偿电容,分别计算对应的功率传输效率,选择功率传输效率最高时对应的一组参数作为双边LCC拓扑网络参数。该方法根据整个系统效率随线圈自感与补偿电感之间比例系数的变化规律,确定整个补偿网络的参数值,对双边LCC拓扑网络参数设计进行优化,实现电动汽车无线充电系统的高效率、高密度传输。
The invention relates to a bilateral LCC topology network parameter design method for a wireless charging coupling coil of an electric vehicle. The method comprises the following steps: determining the resonant frequency f of the wireless charging coupling coil; setting the ratio of the primary side coil self-inductance to the primary side series compensation inductance to be alpha, wherein the ratio of the secondary side coil self-inductance to the secondary side series compensation inductance is set to be beta; and under the condition that the first constraint condition and the second constraint condition are met, selecting a plurality of groups of alpha, beta, primary/secondary side parallel compensation capacitors and primary/secondary side series compensation capacitors, respectively calculating corresponding power transmission efficiency, and selecting a group of parameters corresponding to the highest power transmission efficiency as bilateral LCC topology network parameters. According to the method, the parameter value of the whole compensation network is determined according to the change rule of the efficiency of the whole system along with the proportionality coefficient between the coil self-inductance and the compensation inductance, the bilateral LCC topology network parameter design is optimized, and the high-efficiency and high-density transmission of the electric vehicle wireless charging system is realized.
电动汽车无线充电耦合线圈双边LCC拓扑网络参数设计方法
2024-06-21
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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |