In this paper, a single-inductor dual-output (SIDO) dc–dc converter is proposed. The significant feature of the proposed converter is feeding a constant power load in low-voltage side (LVS) port, where even feeding a variable load at LVS does not have any cross regulation to high-voltage side port with the desired approximation. Magnificently, both merits are obtained in open-loop manner, which is an outstanding characteristic in comparison with that of the existed converters. In this paper, soft commutation and soft switching of switches and diodes are investigated along with the aforementioned main novelty. Moreover, detailed theoretical analyses of the proposed SIDO dc–dc converter in continuous conduction mode are presented besides the comparisons with some other structures. Finally, theoretical analyses are verified through a 1500 W experimental prototype results.

Single-Inductor Dual-Output DC–DC Converter With Capability of Feeding a Constant Power Load in Open-Loop Manner

In this paper, an adaptive fractional order sliding mode control (AFSMC) scheme is designed for the current tracking control of the Boost-type converter in a Battery/Supercapacitor hybrid energy storage system (HESS). In order to stabilize the current, the adaptation rules based on state-observer and Lyapunov function are being designed. A fractional order sliding surface function is defined based on the tracking current error and adaptive rules. Furthermore, through fractional order analysis, the stability of the fractional order control system is proven, and the value of the fractional order (λ) is being investigated. In addition, the effectiveness of the proposed AFSMC strategy is being verified by numerical simulations. The advantages of good transient response and robustness to uncertainty are being indicated by this design, when compared with a conventional integer order sliding mode control system.

/pdf/adaptive-fractional-order-sliding-mode-control-for-boost-4uzhvqilt1.pdf

Adaptive fractional order sliding mode control for Boost converter in the Battery/Supercapacitor HESS

In this study, a novel Power Factor Correction System based on Sliding Mode Fuzzy Control is presented. This structure is used as an AC/DC/AC drive system for asynchronous machine. Non-sinu...

A Novel Power Factor Correction System Based on Sliding Mode Fuzzy Control

A DC-DC converter with constant power loads (CPLs) is a type of strongly nonlinear system. CPLs have the characteristic of negative incremental impedance, which may cause system instability during disturbances if the system is not properly controlled. Additionally, parameter uncertainty renders the control problem of nonlinear systems more complex and difficult. In this paper, a feedback linearization adaptive control strategy is proposed to improve the stability of a buck converter with CPLs. Feedback linearization is adopted based on the inverse system method to linearize the large signal average model of the buck converter with CPLs, and a pseudo-linear system is obtained. Then, a model reference adaptive control technology is applied to design a controller for the pseudo-linear system. Finally, compared with PID control, simulation and experimental results show that the proposed control strategy can achieve faster start-up without overshoots and stronger robustness in restraining resistive loads and CPL disturbances.

Feedback Linearization Adaptive Control for a Buck Converter with Constant Power Loads

This paper deals with the design and the control of multiphase interleaved bidirectional DC-DC converter This converter is used for Electric Vehicle (EV) applications to convert and increase energy storage system voltage from low side voltage to high side voltage, which is necessary to feed the inverter used to drive the traction motor The proposed converter can be also used to connect the energy storage system to the smart grid To increase the performance of high side voltage and to have equal sharing of the load current in each converter module a fuzzy sliding mode control is proposedÂ  The control method is tested by simulation of 4 interleaved bidirectional DC-DC converter associated with the three-phase inverter coupled with a 3 phase induction motor The simulation results exposed the robustness of the proposed control method under some disturbancesÂ Â

https://www.ijsmartgrid.org/index.php/ijsmartgridnew/article/download/102/pdf

Multiphase Interleaved Bidirectional DC-DC Converter for Electric Vehicles and Smart Grid Applications

This paper presents a Sliding Mode Control (SMC) of a Boost converter for constant power regulation. As CPL induces negative instability in DC-DC converters, the proposed SMC aims to improve the dynamical performances, the stability and the robustness of the studied converter. The obtained simulation results prove the efficiency and the robustness of the proposed control approach.

Sliding Mode Control for a Boost converter with Constant Power Load

Nowadays, parallel DC-DC switched converters are commonly used in many applications such as distributed power supply systems and embedded systems to extend battery life. As a single switched mode DC-DC converter topology, a parallel converter must provide a regulated output voltage. For such case the regulation of the voltage must be performed in a closed loop control mode.  In this paper, a Fuzzy Sliding Mode Control (FSMC) is developed and applied to a two parallel DC-DC converter. Fuzzy Sliding Mode Control is a robust control which combines the benefits of fuzzy logic control and sliding mode control. The proposed FSMC is implemented in real time using a dSPACE control board. The efficiency and the robustness of the proposed controller are tested by simulation and experimentally, with success, for different operating conditions

K. Ben Saad

Papers

Sliding Mode Control for a Boost converter with Constant Power Load

Fuzzy Sliding Mode Control for Parallel DC-DC Boost Converter