| Inductively Coupled Power Transfer (Inductively Coupled Power Transfer-ICPT) technology, is based on the electromagnetic induction principle, comprehensive utilization of modern Power electronics technology and electromagnetic coupling technology, and with the aid of modern control theory analysis method, to realize the fixed Power supply electric Power by electromagnetic induction coupling transmission to a way of non-contact Power transmission of electrical equipment. Since the advent of ICPT technology with its characteristics of flexibility, security, reliability, it gets the attention of the researchers, and is developing rapidly at home and abroad. Into the 21st, ICPT technology not only get great achievements in theory,but also in practical applications, especially for the single load ICPT system. But with the development of technology and demand people’s life, prospect of application of multi-load ICPT system is becoming more and more wide.This paper adopts the method of analyzing based on the constant current of the transmitting end of the impedance. Although the theoretical analysis of the four kinds of topology structure of the resonant compensation network, this paper obtains the optimal topology-SP type topology. When the topology is analyzed, though analyzing the relationship between the output voltage and the current of the transmitter, the control strategy of the output voltage is put forward, which is the constant current control strategy based on the reflected impedance. Finally, the simulation model is built and the simulation is carried out to verify the feasibility of the control strategy. |
