2022
DOI: 10.1049/pel2.12354
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Non‐singular terminal sliding mode control strategy for DC/DC Boost converter system using a finite‐time convergent observer

Abstract: Aiming at such problems as poor dynamic and steady-state performance, and non-ideal anti-interference performance when the traditional sliding mode control is applied in Boost converter, a non-singular terminal sliding mode control (NTSMC) strategy based on finite time convergence is presented in this paper. Taking the inductor's current and output voltage as the state variables of the system, the average state model of Boost converter under continuous conduction mode (CCM) is established, and the differential… Show more

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Cited by 5 publications
(3 citation statements)
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“…where 𝑙 2 is the observer gain and 𝑝 2 is the auxiliary state variable. By substituting (11) into 𝜔 ̃̇2 , we have…”
Section: Design Of Disturbance Observermentioning
confidence: 99%
See 1 more Smart Citation
“…where 𝑙 2 is the observer gain and 𝑝 2 is the auxiliary state variable. By substituting (11) into 𝜔 ̃̇2 , we have…”
Section: Design Of Disturbance Observermentioning
confidence: 99%
“…Nevertheless, traditional sliding mode control has two main drawbacks: firstly, the output voltage can only exponentially converge to zero within infinite time; secondly, the controller's discontinuity results in chattering around the sliding mode surface, making it vulnerable to failure in the presence of load disturbances. To tackle these issues, researchers have gradually employed higher-order sliding mode methods [10], non-singular terminal sliding mode control methods [11], and integral sliding mode control methods [12−13]. These methods help reduce chattering effects while maintaining the excellent performance of traditional sliding mode control.…”
Section: Introductionmentioning
confidence: 99%
“…Fuzzy control has a strong nonlinear adaptive ability [10], which can overcome the shortcomings of the traditional PID controller, but cannot overcome the influence of load uncertainty in the Buck-Boost converter. Sliding mode control [11] can solve the problem of model uncertainty, but it will lead to the chattering of output voltage [12], and variable switching frequency will lead to electromagnetic interference [13], so the system has a steady-state error. This approach still does not meet the control performance requirements of the system.…”
Section: Introductionmentioning
confidence: 99%