Aimed at different demands of power of multiple receiver loads in multiple-input multiple-output wireless power transfer (MIMO-WPT) system, in the paper, a method of calculating the excitation source at the transmitter by general circuit model is put forward to realize the power allocation of the receiver loads. First, the magnetic coupling resonance (MCR) MIMO-WPT system is made to be equivalent to a linear circuit model, and the general circuit model of MIMO-WPT system is established, which describes output transfer characteristics, transmission efficiency and output power of the MIMO-WPT system with parametric state matrix. Then, based on the power demand of each receiver load, the vector expression of the excitation source at the transmitter of MIMO-WPT system is derived by the general circuit model. At last, the simulation experiment of WPT system with 3 transmitting and 2 receiving coils is designed to verify the accuracy of the general circuit model estimation and the feasibility of the power distribution of the receiver load. Meanwhile, the application of the general model provides a feasible solution to solve different power demands of multiple receiving loads in the MIMO-MCRWPT system.

针对多输入多输出无线电力传输（MIMO-WPT）系统中多接收机负载功率的不同需求，提出了一种利用通用电路模型计算发射机激励源的方法。接收器负载的功率分配。首先，使磁耦合共振（MCR）MIMO-WPT系统等效于线性电路模型，并建立了MIMO-WPT系统的通用电路模型，该模型描述了系统的输出传输特性，传输效率和输出功率。具有参数状态矩阵的MIMO-WPT系统。然后，基于每个接收器负载的功率需求，通过通用电路模型推导了MIMO-WPT系统的发射器处的激励源的矢量表达式。最后，设计了具有3个发射线圈和2个接收线圈的WPT系统的仿真实验，以验证通用电路模型估计的准确性以及接收器负载的功率分配的可行性。同时，通用模型的应用为解决MIMO-MCRWPT系统中多个接收负载的不同功率需求提供了可行的解决方案。