Research On Parallel Technology Of Single-Phase Inverter Based On Network Control

Multi-module parallel is a way to achieve large-capacity power supply,power transmission technology is one of the important direction of development.Based on the theory of parallel control of inverter power supply,this paper researed the parallel technology of single-phase inverter power supply based on network control.Firstly,the mathematical model of the single-phase inverter power supply is established.Secondly,the parallel principle of the inverter power supply and the power characteristics of the parallel system and the method of regulating the current and voltage are analyzed.Finally,the essential to realize the parallel connection through the CAN(Controller Area Network)Technology is the flow of communication and communication information synchronization.On the basis of simulation research,a single-phase inverter power supply parallel system based on CAN bus network communication is realized.The control of the parallel system of the inverter is implemented through the network,and estimated the corresponding network control parameters.The two different power values of the network control are compared and the augmented matrix judgment method of the two network control models is deduced.At the same time on the CAN bus network using the CAN message dynamic priority scheduling algorithm,dynamically adjust the CAN communication message packet priority,so that CAN message packet transmission faster,and has a better real-time.The experimental and simulation results show that the dynamic performance of the single-phase inverter system with network control is good and the synchronization performance is stable,and the feasibility and effectiveness of the proposed network control scheme based on CAN bus network dynamic scheduling algorithm are verified.