In this study,a sliding mode controller based on nonlinear distnrbance observer is investigated to control a class of underactnated system which is in cascaded *** using strict feedback,the underactnated system is pre...
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ISBN:
(纸本)9781479900305
In this study,a sliding mode controller based on nonlinear distnrbance observer is investigated to control a class of underactnated system which is in cascaded *** using strict feedback,the underactnated system is presented as a special cascade normal form convenient for controller design.A sliding mode controller is designed to stabilize underactnrated plant directly and drive the variables to the sliding *** order to improve performance and robustness,a nonlinear disturbance observer was designed to compensate for external disturbances and model *** theoretical results axe illustrated by simulations on the *** simulation results show that the sliding mode controller with nonlinear disturbance observer can suppress the disturbance effectively.
The existing flue gas pollutants controlsystem is facing great challenge with the promulgation of Emission Standard of Air Pollutants for Thermal Power Plants (GB13223-2011) in China. So much money is needed to impro...
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ISBN:
(纸本)9783642539329;9783642539312
The existing flue gas pollutants controlsystem is facing great challenge with the promulgation of Emission Standard of Air Pollutants for Thermal Power Plants (GB13223-2011) in China. So much money is needed to improve or reinstall the pollutants disposal system, which is hard for the plants. The simple and low cost equipment called as the integrated pollutants control equipment with the fluidized bed absorber was firstly put forward to absorb the additional pollutants between the old and the new Chinese emission standards. Designed of the equipment was proceeded based on the uniform bag filtration and the AC absorption. The absorber was optimized by the flow field simulation. Two guide plates' angle of 45 degrees, the uniformly distributed bags and the opposed bend pipes can make the flow field in the IPCE uniform. The large AC inlet velocity is good for the uniform AC distribution.
In this paper,dynamic neural networks(DNNs) are used as the on-line identifier for a class of nonlinear systems with unknown external disturbance and unknown multiple dead zone *** integrating the novel nonlinear dist...
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ISBN:
(纸本)9781479900305
In this paper,dynamic neural networks(DNNs) are used as the on-line identifier for a class of nonlinear systems with unknown external disturbance and unknown multiple dead zone *** integrating the novel nonlinear disturbance observer with adaptive control algorithms,the parameter coupling problem between unknown dead zone and DNNs can be successfully solved and the multiple disturbances can also be rejected *** the observation error and the identification error can be proved to convergent to ***,by combining with the numerical result of an unmanned aerial vehicle(UAV) model,the effectiveness of theoretical algorithms can be fully verified.
An efficient model predictive control algorithm for nonlinear discrete systems with external persistent disturbances is *** contribution of this article is two ***,we transfer the real-time nonlinear procedure into a ...
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ISBN:
(纸本)9781479900305
An efficient model predictive control algorithm for nonlinear discrete systems with external persistent disturbances is *** contribution of this article is two ***,we transfer the real-time nonlinear procedure into a nonlinear-quadratic regulator design for an off-line system by a novel successive approximation approach(SAA) at each control ***,an adjoint vector is introduced to compensate the nonlinearities and the *** the compensate term need to be calculated online in order to reduce the computation *** reduces the time in computing the feedforward and feedback optimal control law *** are conducted to demonstrate the real-time applicability of the approach proposed.
This chapter proposes an intelligence-based approach to solve the optimal power flow (OPF) problem considering flexible AC transmission system (FACTS). FACTS plays an important role in dynamic stability and steady-sta...
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Cyber-Physical systems (CPS) integrate computing, networking, and physical processes to digitally execute tasks on or using the physical elements of a system. Power microgrids are a particular kind of CPS that enables...
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Cyber-Physical systems (CPS) integrate computing, networking, and physical processes to digitally execute tasks on or using the physical elements of a system. Power microgrids are a particular kind of CPS that enables management and autonomic control of local smart grids, aiming at reliability, fault tolerance and energy efficiency, among other goals. This paper explores a new approach based on MDE that uses models at runtime techniques to manage and control microgrids. The approach employs a model execution engine that manages a causally connected runtime model of the microgrid and interprets user-defined models in order to generate controls for the microgrid elements. We demonstrate the approach by building the lower layer of the model execution engine. Furthermore, we explore a model-driven technique to build the execution engine and use the resulting experience to argue that the approach can be extended to other kinds of cyber-physical systems.
Fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a...
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The sleep mode is utilized to reduce the energy consumption of the mobile station and the resource occupation of the air interface of serving base station in ieee802.16e network. In order to improve the efficiency of ...
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As quality of life is improving, a number of people pay attention to their health. Though the demand for medical services has been increased steadily, the number of doctors per capita increased only 2 % per year on av...
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A survey is presented of the developments in scientific literature on the greenhouse optimal control. The related problems to optimal control were discussed, and the schematic diagram of optimal controlsystem, combin...
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