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Shaoping Chang - IEEE Xplore Author Profile

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The rapid expansion of international shipping industry leads to escalating ship operational costs and cold-ironing (CI) demand, necessitating the development of promising energy dispatch and voyage scheduling for ship. Accordingly, this paper proposes a hybrid power ship (HPS) optimization model, which involves interactions of diesel generator, energy storage module, electric boiler, propulsion sy...Show More
When the power of the distribution power generation system of the microgrid fluctuates greatly, the output power and frequency of the virtual synchronous generator (VSG) are prone to oscillate. Vibration can be suppressed by adjusting the moment of inertia and damping coefficient. However, due to the nonlinear relationship between these two parameters and frequency, this paper proposes a RBF neura...Show More
Along with the promotion and application of new energy, the widespread access of distributed power makes the structure of microgrid complex and changeable. The centralized optimization method is no longer available for solving the problem of economic dispatching due to its operation mode and nature. In this paper, a distributed optimization method is designed to solve the economic dispatching prob...Show More
With the rapid development of renewable energy, the DC microgrid (MG), as a scheme that can integrate multiple power generation modes, has received widespread attention. In this paper, a fully distributed predefined-time secondary controller applied to DC microgrid is proposed to correct the voltage deviation or inaccurate current sharing caused by primary droop control. Compared with the existing...Show More
A fixed-time control approach is investigated for the leader–follower formation tracking issue of wheeled mobile robots (WMRs) with prescribed performance in this brief. The nonlinear and underactuated model of the WMR is first transformed into a linear one with uncertainties and external disturbances. Then, a time-varying fixed-time extended state observer is developed to observe the total distur...Show More
This article is concerned with the fixed-time active disturbance rejection control approach for nonlinear systems subject to uncertainties and disturbances. First, a new type of extended state observer (ESO) which can attain fixed-time convergence is established to estimate the states and the total disturbance. Then a fixed-time controller based on the above ESO is developed to achieve high precis...Show More
This paper studies the formation control problem of the wheeled mobile robots by the finite-time active disturbance rejection control method. The model of a single wheeled mobile robot, which is nonlinear and underactuated, is handled as a linear system by the feedback linearization. Then each wheeled mobile robot can be regard as a linear agent with the influence of the total disturbance. Thus th...Show More
In this paper, a finite-time extended state observer design approach is proposed for a class of uncertain single-input single-output nonlinear systems. A novel extended state observer which can achieve finite time convergence is firstly constructed to estimate the total disturbance. A performance function is used and a new error transformation is provided to guarantee the transient and steady perf...Show More
This paper presents an adaptive fuzzy time-varying sliding mode control scheme for quadrotor unmanned aerial vehicle (UAV) attitude system with prescribed performance. A performance function is used and an error transformation is provided to transform the original constrained nonlinear system into an equivalent unconstrained one. Fuzzy systems are used to approximate unknown nonlinear functions of...Show More
This paper presents an adaptive fuzzy control scheme for a class of uncertain multi-input multi-output(MIMO) nonlinear systems with unknown control direction and nonsymmetric control gain matrix. In this scheme, fuzzy systems are used to approximate unknown nonlinear functions, a controller is developed to avoid the calculation of the matrix inverse. A robust controller is employed to compensate f...Show More
In this paper, an indirect adaptive fuzzy control scheme is developed for a class of uncertain multi-input multi-output (MIMO) nonlinear systems with nonsymmetric control gain matrix. The nonsymmetric control gain matrix is expressed as the sum of a symmetric matrix and a skew symmetric matrix, and the symmetric matrix as well as the skew symmetric matrix are approximated by fuzzy systems. By usin...Show More
This paper presents an indirect adaptive fuzzy output control for a class of uncertain single-input single-output(SISO) nonlinear systems with unknown control direction. A state observer is designed to estimate the unmeasured state, the adaptive fuzzy controller is designed in the presence of only system output is available for measurement, and a robust controller is used to compensate for the lum...Show More