This paper develops a hysteresis band-based multivariable sliding mode control (SMC) for the double input buck buck–boost fused converter. The considered converter is operated at a controlled output voltage, while supplied from two different levels of input voltages from two different sources. The proposed control is to ensure the faster time of responses during the variation in the dual references, the output voltage, and low-voltage source current, simultaneously. The controller is developed by considering these two controlled variables, which are directly dependent on each other. This multivariable SMC is shown to perform successfully to maintain the controlled variables at their desired values despite the variation in the input voltage sources and also during perturbation in the load impedance. The stability analysis for the closed-loop system is established with the Lyapunov method, which confirms that both of the controlled variables reach the desired stable band at the steady state. The control is implemented in the simulation environment for different operating conditions. A laboratory prototype is developed to implement the multivariable SMC. The experimental results successfully validate their simulated counterparts.

中文翻译：

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双输入降压-升压熔断器的滑模控制

本文为双输入降压-升压熔断转换器开发了一种基于磁滞带的多变量滑模控制 (SMC)。所考虑的转换器在受控输出电压下运行，同时由来自两个不同来源的两个不同电平的输入电压供电。所提出的控制是为了确保在双参考、输出电压和低压源电流同时变化期间更快的响应时间。控制器是通过考虑这两个直接相互依赖的控制变量来开发的。尽管输入电压源发生变化以及负载阻抗发生扰动，但这种多变量 SMC 显示成功地执行以将受控变量保持在其期望值。采用李雅普诺夫方法建立了闭环系统的稳定性分析，证实了两个受控变量在稳态时都达到了所需的稳定带。该控制是在模拟环境中针对不同的操作条件实现的。开发了一个实验室原型来实现多变量 SMC。实验结果成功地验证了它们的模拟对应物。