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Traffic management measures like one-way street results in the misalignment of upward and downward traveling routes of public transit, which was rarely taken into account by researches on transit shortest path. In this paper, the concept of Abnormal Station is proposed, after which an analysis of its characteristic is made in depth. Then, an algorithm that can effectively handle the matter of Abnormal...
In the paper, an analytical description in the continuous-time domain of additive-switching scheme for fractional variable-order differ-integrals will be presented. Moreover, composition property of variable-order differ-integrals realized by means of additive-switching scheme with constant-order differ-integral will be investigated. Analog realization results of additive-switching scheme will be...
The disturbance models in industry system always change with several disturbances existing simultaneously. The performance assessment based on Single Model Time-variant Minimum Variance (SMTMV) is not available to system with multiple time-variant disturbances. Since the transient deviation exists, the performance assessment based on Multi-model Switching Time-variant Minimum Variance (MSTMV) is not...
Many physical systems and processes encompass several modes of operation with a different dynamical behavior in each mode. Switching systems provide a suitable mathematical model for such processes. It is well known that the continuous states of switching systems are often non-differentiable with respect to parameters at the switching instants. However, states at these instants are often involved...
This paper proposes a novel nonlinear distributed consensus protocol of the finite-time consensus problems of leader-follower multi-agent systems based on the distributed consensus error functions. It is proved that the leader-follower multi-agent systems under this nonlinear protocol can reach the consensus in finite time in the scenarios with fixed topology and two kinds of switching topologies,...
For a complex system with the working point range changing, large delay and other characteristics, it has a certain degree of difficulty to be controlled. The usage of multi-model to deal with this kind of control system issues is effective. In this paper, we focus on proposing the different conditions using different models and multi-model internal model control method. According to different local...
In this paper, the problem of semi-global finitetime stabilization by output feedback is investigated for a class of nonholonomic systems in chained form with uncertainties. By using the homogeneous domination approach, a constructive controller design procedure for output feedback control is given. Together with a novel switching control strategy, the designed controller renders that the states of...
This paper studies the output feedback consensus of second-order multi-agent systems. The information of the exosystem could not be accessed by all the agents and each agent could access the information with its neighbors. Observer-based distributed control approach is proposed to solve the consensus problem of multi-agents, in which all the states of agent can not be measured by itself and its neighbors.
In this paper, the dynamic output feedback stabilization for a class of switched delay systems with the existence of structural uncertainties under asynchronous switching is investigated. The delays appear not only in the state, but also in the switching signal for the control. When the switching signal of the switched controller involves delay, by constructing a novel Lyapunov functional, sufficient...
In this paper, noise-to-state stability is investigated for a class of random systems with state-dependent switching. Under some mild and easily verified conditions, the existence of global solution to random switched systems can be proved by the aid of Lyapunov approach. Based on a reasonable requirement to the random disturbance, the criteria on noise-to-state stability in probability of random...
This paper considers the problem of non-fragile reliable H∞ control problem for a class of delta operator switched systems with actuator faults. A new approach is proposed to deal with the uncertain matrices multiplication phenomenon which appears in non-fragile reliable control. Based on average dwell time approach, a sufficient condition that can guarantee a prescribed H∞ performance of the closed-loop...
In this paper, we investigate the simultaneous stabilization design problem for a finite collection of uncertain nonlinear systems by compensator-based sliding mode dynamic output feedback controllers. This methodology is based on Lyapunov stability theory and linear matrix inequality (LMI) methods. A numerical example is given to illustrate the effectiveness of the proposed method.
The paper proposes a new class of dual output step-up Fibonacci switched capacitor converters (SCC) and formal approach for its synthesis. The resolution of target voltages in the new SCC has been significantly increased in comparison with the previously developed single-output SCC, where the target voltages are spaced as 1/x. In the case of three flying capacitors the proposed SCC provides six different...
This paper investigates the sliding mode control of three-phase voltage source PWM rectifier (VSR). When the three-phase VSR system is applied in different environmental conditions, external disturbances are inevitable and stochastic, so these conditions should be taken into consideration when designing the controllers. To have a good performance and a fast response, the whole closed loop control...
This paper shows the transient behavior of a system which boosts a part of the battery voltage for a electric vehicle. This system consists of the powertrain of electric vehicles and a bi-directional isolated DC-DC converter called dual active bridge (DAB). This system can compensate the battery voltage drops with high efficiency compared with the conventional series chopper system. In many studies,...
A three-phase isolated full-bridge boost power factor correction (PFC) converter with a flyback passive auxiliary converter is presented and investigated. The PFC converter operates in discontinuous conduction mode (DCM), it can achieve zero voltage turning off for the upper switches and zero voltage turning on for the lower switches. With the adoption of the passive auxiliary converter, the voltage...
In order to face the coming era of DC power supplying, it is needed to establish the technology of high step-down converter for the electrical appliances' control circuits, especially for dynamic appliances like air conditioner, refrigerator and freezer. For a forward converter suitable for high step-down[1]∼[2], mathematical derivations, including steady-state analysis in time domain and static characteristic...
Authors proposed the series chopper based power train aimed for the extension of the driving range. In previous paper [1], under the condition of the constant DC-supply voltage, effectiveness of the optimization of the profile of the chopper output voltage was shown. However, the output voltage of the battery used in the actual EV varies depending on the state of charge (SOC). Because of this difference,...
This paper investigates the input/output-to-state stable in the mean (IOSSiM) property of switched stochastic nonlinear (SSN) systems. First, we present a new IOSSiM result for the SSN systems whose subsystems are IOSSiM by applying an improved ADT method. Second, by extending the improved ADT method to unforced nominal SSN systems in which parts of subsystems are stable, we establish a new stability...
This paper is devoted to the consensus problem of multi-agent systems with inherent nonlinear dynamics. To reflect the practical environment of multi-agent systems, the communication topology is assumed to switch slowly within a finite set of directed topologies restricted by an average dwell time switching signal. By taking advantage of tools from switched systems and piecewise Lyapunov functions,...
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