Design of a New Control Strategy for the Inverter Link in the Electrical Installation and Management of Green Buildings
A fuzzy improved self disturbance rejection control strategy with linear self disturbance rejection control as the core control algorithm and sliding mode control as the auxiliary control algorithm is designed.Based on the mathematical model of the inverter link in a two-phase rotating coordinate system in green electrical buildings,the mathematical model of linear active disturbance rejection control is written.At the same time,a linear extended state observer and a linear error feedback law are constructed to improve the controller's resistance to system disturbances and enhance the system's anti-interference ability.Introducing sliding mode control to replace the proportional differential controller in linear active disturbance rejection control,further compensating for the impact of insufficient disturbance observation and improving the system's disturbance observation ability.Finally,an inverter link in green building electrical was built on the MATLAB/Simulink digital simulation experimental platform,and a comparison was made between fuzzy improved self disturbance rejection and traditional proportional integral control.The results showed that the harmonic distortion rate of the inverter link under fuzzy improved self disturbance rejection was 2.3%,much lower than that of proportional integral control,and the success rate of grid connection was 95.6%.
green electrical buildingsinverter linklinear self disturbance rejectionsliding mode control
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