Intelligent ISSA-Based Non-Singular Terminal Sliding-Mode Control of DC–DC Boost Converter Feeding a Constant Power Load System

In response to the issue of system oscillations in direct current (DC) microgrid systems with constant power loads (CPL), this paper proposes a non-singular terminal sliding-mode control (NTSMC) strategy based on improved salp swarm algorithm (ISSA). Firstly, state-feedback exact linearization technique is employed establish linearized model converter system. Then, NTSMC composite surface designed achieve rapid convergence and effectively weaken chattering traditional control, ensuring supply load. The parameters proposed are optimized using ISSA, which introduces an intelligent NTSMC. Finally, MATLAB/Simulink simulation established. results show that ISSA-based for DC CPL exhibits high robustness guarantees ideal steady-state characteristics dynamic responses when input voltage fluctuations load disturbances occur.