Research on control strategy based on MMC inverter

Typical PI control and passive control can not guarantee the reaction rate of the system when the system is perturbed because of the fixed parameters of the internal control structure, and can not maintain a good control effect. In order to deal with the problem of fixed data under passivity-based control, another control can be added based on the Euler- Lagrange model of the inverter system, the chattering of sliding mode variable-structure control (SMC) can be restrained by improving the anti-disturbance ability of the whole system and optimizing its reaching law, so the system can get better output characteristics. On the basis of MATLAB/Simulink platform, the inverter system simulation module is built to carry out simulation, by comparison and analysis, it is proved that under the consistent simulation conditions, the passive and sliding mode control has stronger anti-disturbance and better response speed.