In this paper, second-order sliding-mode (SOSM) control approach is applied to synchronous buck dc-dc converters. The proposed SOSM controller can stabilize converters using a simple digital state-machine structure, without requiring current sensing or an integral term in the loop. results fast step-load and start-up transient responses, robust against parameter uncertainties. Fast transients limitation during start up be accomplished by adjusting one parameter. Furthermore, hysteresis...

A bi-directional isolated Cuk equalizer for the energy bus-based equalization network is presented in this paper. The battery side from bus by two capacitors. synchronous approach used to improve efficiency. efficiency can achieve above 90% a wide range of power. operating principle, steady-state analysis and derivation conditions have been made show merits scheme. validity scheme has verified experiments.

Three-level buck dc-dc converters have advantages over the traditional converters: half switch voltage stress, doubling effective switching frequency, smaller inductor size, and higher power density. To benefit from those advantages, flying capacitor must be balanced at of input voltage. Most existing methods balancing require current sensing, which increases cost noise sensitivity. This paper proposes a novel state-machine structure second-order sliding-mode (SOSM) control for three-level...

In recent years, V2G techniques have been successfully implemented to stabilize frequency deviations in the grid caused by intermittent renewable energy sources. However, battery capacity constraints and real-time dynamic driving demands of electric vehicles (EVs) systems hinder coordination between control power plant strategies. It leads asymmetry regulation up (RU) down (RD) (FR) system, which can affect performance FR. To cope with this problem, paper proposes a switched integral...

Consensus tracking problem of the leader-follower multiagent systems is resolved via second-order super-twisting sliding mode control approach. The followers’ states can keep consistent with leader’s on surfaces. proposed approach ensure finite-time consensus if directed graph nonlinear system has a path under condition that input unavailable to any followers. It proved by using Lyapunov stability theory. Simulation results verify availability

A novel battery equalization scheme is presented to balance series-connected lithium-ion string. The proposed balancing circuit has simple structure which easily used design the bidirectional nondissipative equalizer for batter management system. fuzzy-PI controller control process of batteries, improves speed and accuracy within a safe range. Simulation experiment results show advantages algorithm.

The paper presents a second-order sliding-mode (SOSM) control approach for synchronous buck dc-dc converters. SOSM controller is implemented digitally, using simple state machine, which does not require current sensing or an integral term. A hysteresis introduced to the switching frequency. results in fast transient responses without overshoots, and robust against parameter uncertainties. proposed verified by experimental on 1.25 V, 10 prototype.

A distributed equalization control approach for series connected battery strings is presented in this paper. Each cell can transfer its energy to others through the bus. The model of system built and problem converted consensus multi-agents. bidirectional flyback converter based circuit a controller are designed. proposed verified by an with five strings.

For a class of nonlinear systems with sensor uncertainty, the problem adaptive output feedback stabilisation is investigated in this paper. It assumed that only available for control, which suffers from uncertainty. At same time, function system model has an unknown growth rate. To solve problem, set state observers designed to estimate states based on uncertain output, and output-feedback control this. By using corollary Barbalet's Lemma, it shown equilibrium closed-loop asymptotically...

In view of the incremental dimensionality reduction problem existing non‐linear methods, a novel algorithm, based on locality constrained dictionary learning (LCDL), is proposed in this study. During process, neighbourhood size some potential landmarks manifold to maintain intrinsic local geometric feature datasets. Meanwhile, improve dictionary's discrimination ability, structured learnt by LCDL, whose sub‐dictionaries are class‐specific. Then sparse coding and its reconstruction errors...

The paper adapts the second-order sliding mode (SOSM) control technique to higher-order dc-dc converters. In particular, presents an adaptation of this for buck converters with input filter. approach consists regulating converter output voltage by means a state-machine similar basic SOSM controller, which is shown perform well as long filter properly damped, thus ensuring overall stability. Stability and fast dynamic responses are verified simulations on 5 V-to-1.3 V point-of-load damped LC

This article presents a state trajectory control scheme for switched-capacitor-based resonant converter consisting of two half-bridge circuits with four switches. The proposed technique can not only bring an improved dynamic response output voltage regulation but also ensure that the benefits from soft-switching operation. analysis in planes provides insight into switching modes and creates accurate behavior framework geometrical domain. As result, finite-state-machine controller is designed...

In this article, a second-order sliding-mode (SOSM) control theory is applied to the dc-dc boost converter. The proposed SOSM controller which constructed with state-machine structure can achieve an approximate time-optimal response of output voltage in presence unknown load disturbances without current sensing or integral term loop. Switching conditions are obtained through analysis optimal trajectories state plane. Furthermore, estimation algorithm presented enhance robustness, and...

A high-order sliding mode control for DC-DC converter is presented. with controller not only presents robustness against parameter uncertainties, load perturbation and fast dynamic response, but also reduces the chattering effect of traditional first-order control. This paper introduces a finite states machine structure based converter. The proposed can be designed just knowledge rough values Simulation results are presented to verify method.

In this paper, a hybrid energy storage system with balance is presented to solve the capacity limitation of supercapacitor (SC) in traditional power allocation methods. Power realized by droop control algorithm. Energy equalization model predictive Bidirectional equalizers transfer between and batteries. Therefor can continuously absorb or provide high-frequency fluctuating while batteries are responsible for steady-state only. It protect prolong life cycle system. For different working...

Based on the actual project, establish mathematical model of swingable arm and researches laneway profiling control track planning. Realizes automatic by using human simulating intelligent (HSIC). The experimental result shows that this is a feasible solution.