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A predicted heat strain model (PHSM) has been used to evaluate the thermal stress experienced by a human subject during exercise in a hot environment. In the PHSM, equations describing the thermal balance of a human body predict the physiological response, including sweat rate and internal temperature, for a given metabolic rate. In this paper, we propose that the heat balance equations of the PHSM...
The modular multilevel cascaded converter with single-star bridge-cell (MMCC-SSBC) is very suitable for next generation high-scale renewable energy resource system for the low switching loss, low output current distortion, and high reliability. The voltage balancing control is an important issue for MMCC-SSBC to maintain system operation which can be accomplished by negative sequence current and/or...
In this paper, a novel control solution is proposed and validated, for the decoupling control of variable geometry turbine (VGT) and exhaust gas recirculation (EGR) system in diesel engines. The cross-coupling and dynamics variation are lumped together as total disturbance, estimated and cancelled in real time by active disturbance rejection control (ADRC). The static and dynamic feed-forward controllers...
Obvious differences are observed between simulation and experimental results for series-connected insulated-gate bipolar transistors (IGBTs) using current IGBT models. Here, the cause of these errors is analyzed in detail. A physical model based on more effective assumptions for a 2-D structure is proposed in this paper. The relationship between carrier concentration and lifetime is considered in...
This paper proposes a novel scheme that considers the data hiding with sub sampling and compressive sensing. We utilize the characteristics of compressive sensing, sparsity and random projection, to embed secret data in the observation domain of the sparse image obtained through compressive sensing. The high bit correction rate (BCR) in experiments shows the high accuracy of our proposed method.
A multiple-input current-source converter for a stand-alone hybrid power system is proposed. As the power rating increases, isolated multiple-input converters may have limited efficiency caused by power losses from their coupled-inductor or transformer leakage inductance. This paper discusses a multiple-input circuit topology suitable for hybrid renewable energy applications, such as photovoltaic,...
A novel DC-DC step-down converter with interleaved control for low output-voltage and high output-current applications is presented in this paper. The voltage gain of the proposed converter is half of the conventional buck converter with reduced current stresses on power devices and low output-current ripple are reduced. The operating principle, steady-state analysis, and small-signal model analysis...
This work investigates the dissipative dynamical system in the infinite lattice Z with cellular neural networks as an example of application. The dynamics of each node depends on itself and nearby nodes by a nonlinear function. When each node is perturbed with weighted Gaussian white noise, there exists a unique pullback attractor and forward attractor whose domain of attraction are random tempered...
A nonlinear output feedback controller is developed for an Underactuated manipulator in this paper. The PPR planar Underactuated manipulator consists of two active joints and one passive joint. The dynamic constraint on the free link is 2nd-order non-holonomic. Firstly, the motion equations are transformed into a special form using some global coordinate and input transformations. Secondly, a time-varying...
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