PV inverter control in simulink based on backstepping control

I am trying to implement Backstepping control in simulink from this paper "Nonlinear controller Design for Single-Phase Grid-Connected Photovoltaic Systems".Everything seems fine but DC-Link capacitor voltage is always increasing with a slow pace.it never settles at 400 but keeps on increasing slowly. any idea ?

[ali ahmadijokani]

hi.I need your help. how do you design and simulate this method?

[Shah Fahad]

In matlab

[zineb soumir]

can i have your code?

Answer 1

[Shah Fahad]

I used simulink. Refer to my papers below published in this field.

1.

https://www.researchgate.net/publication/330595605_Particle_Swarm_Optimization_Based_DC-Link_Voltage_Control_for_Two_Stage_Grid_Connected_PV_Inverter?_sg=3jrqJD0nyY8fPzrH6kTUHSRvkrvGMKKoOBhNWBRgTkA2ekvX-RzHQaPvLiSqn_c8iTpYKwtvkRuRNg.PVcgdN_sazk7Guv-GkgD0blkxt4oLUlvul55lZegsrWh0s0KwK46Nf4M0HiQnyDa9-h9tJgszaUj6NzvhR7Pjg&_sgd%5Bnc%5D=2&_sgd%5Bncwor%5D=0

2.

https://www.researchgate.net/publication/331980001_An_Advanced_Two-Stage_Grid_Connected_PV_System_A_Fractional-Order_Controller?_sg=3jrqJD0nyY8fPzrH6kTUHSRvkrvGMKKoOBhNWBRgTkA2ekvX-RzHQaPvLiSqn_c8iTpYKwtvkRuRNg.PVcgdN_sazk7Guv-GkgD0blkxt4oLUlvul55lZegsrWh0s0KwK46Nf4M0HiQnyDa9-h9tJgszaUj6NzvhR7Pjg&_sgd%5Bnc%5D=4&_sgd%5Bncwor%5D=0