The invention discloses a wireless charging system control method and system, electronic equipment and a storage medium, and relates to the field of wireless electric energy transmission, the method comprises the following steps: firstly, establishing a nominal model of a wireless charging system, determining the perturbation range of battery equivalent load resistance and the perturbation range of a coupling coefficient, and based on this, utilizing the Kharitonov theorem to determine the perturbation range of the battery equivalent load resistance and the perturbation range of the coupling coefficient; the method comprises the following steps: determining a plurality of vertex objects of a wireless charging system, determining stability domains of a PID controller under a current set amplitude margin and a current set phase margin by combining a characteristic polynomial of a closed-loop control system containing a margin function, substituting PID controller parameters in an intersection of all the stability domains into the characteristic polynomial, and determining the stability domains of the PID controller under the current set amplitude margin and the current set phase margin. And verifying whether the PID controller meets the time domain performance index or not, and determining an optimal control parameter of the wireless charging system so as to control the wireless charging system. According to the method, the robust performance of the wireless charging system under perturbation of parameters (load and coupling coefficient) is improved, and the robust stability of the system can be ensured.
本发明公开一种无线充电系统控制方法、系统、电子设备及存储介质,涉及无线电能传输领域,该方法首先建立无线充电系统的标称模型,确定电池等效负载电阻的摄动范围和耦合系数的摄动范围,基于此,利用Kharitonov定理,确定无线充电系统的多个顶点对象,结合包含裕量函数的闭环控制系统的特征多项式,确定在当前设定幅值裕度和当前设定相位裕度下的PID控制器的稳定域,将所有稳定域的交集内的PID控制器参数代入特征多项式,验证PID控制器是否满足时域性能指标,确定无线充电系统的最优控制参数,以对所述无线充电系统进行控制。本发明提高了无线充电系统在参数(负载和耦合系数)摄动下的鲁棒性能,能够保证在系统鲁棒稳定。
Wireless charging system control method and system, electronic equipment and storage medium
一种无线充电系统控制方法、系统、电子设备及存储介质
2024-06-04
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 / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL |
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