| The traditional power supply system has the intrinsic defects. Parallel technology is an important mean of improving inverter power supply reliability and expanding the inverter power supply capacity.This paper mainly studies the digital controlled technology of inverter, and the inverter control strategies in parallel. It will improve the output performance and reliability of inverter, and provide the basic unit module for distributed power generation system. This system uses high frequency inverter technology. The main circuit uses BOOST topology to realize the DC/DC transformation, and half bridge topology to realize the DC/AC transformation.The main aspects of the paper are as follows:1. To analyze and compare different control strategies of the inverter; to point out the advantages and disadvantages of them; to introduce the inverter control strategies of parallel.2. To introduce the key technologies of wireless inverter; to establish the mathematical model of the drooping paralleling control; to analyze the characteristics of power prolapsed and the way of power decoupling control.3. To select the inverter of main circuit structure; to build mathematical model; to proposed three-loop control scheme; to use MATLAB simulation tool to simulate the control strategy of single inverter.4. To establish a single-phase inverter control system of MATLAB wireless parallel simulation model; to use MATLAB simulation tool to simulate two inverter units operation in parallel, and to get nice experiment result.5. To use DSP as the controller chip; to made a specimen for a single-phase inverter of wireless parallel and get nice experiment result from experimentation with real situation. |
PDF Full Text Request