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Co-evolution exists ubiquitously in biological systems. At the molecular level, interacting proteins, such as ligands and their receptors and components in protein complexes, co-evolve to maintain their structural and functional interactions. Many proteins contain multiple functional domains interacting with different partners, making co-evolution of interacting domains occur more prominently. Multiple...
This paper proposed a novel topology, which series inverter and shunt inverter both have capacitors in DC links, and connected by a resistor. And then establish mathematical model and control transfer function. At last compare the performance of traditional UPQC, separate UPQC and proposed UPQC in sag, harmonic and unbalance condition. The results shown that the proposed topology have a great performance...
A novel sub-optimal control algorithm based on fuzzy logic system (FLS) to design continuous sliding mode control (CSMC) for uncertain nonlinear systems is presented. By means of combining a fuzzy logic system into sliding mode control, continuous sliding mode control (SMC) can be designed on the derivative of the control signal. The realization of the controller is easier and more convenient than...
Particle filter, which is proposed for implementing recursive Bayesian filter to calculate posterior probability density function, is applied to solve the incommensurability of multi-objective decision making problem here. This method, which is based on the principle of particle filter, can convert the values of all alternatives under every criterion into probability, once the expectable values of...
Based on new designed second-order robust observer of the augmented system of nonlinear uncertain system, a continuous sliding mode control (SMC) design is presented. Eventually a low-passing filter is constituted by the designed controller. Thereby the chattering phenomenon in the control system is eliminated. Application simulation results of an inverted pendulum are reported to validate its performance...
This paper proposes an improved state-dependent Riccati equation (SDRE) attitude control approach which is applied in an unmanned helicopter (UMH). To deal with inherent unstable dynamics, the flapping, rotational dynamics and translational motion of UMH are organized into a multi-timescale nonlinear model. To overcome the problem that a number of terms can't be accounted in the SDRE design, we employ...
The method of inverse system control applied to inverted pendulum system was described in this paper. First, the method was directly used to design the strategy of inverted pendulum pseudo-linear system, and then the feasibility and shortcomings of the system were analyzed through simulating three specific models of inverted pendulum system. Secondly, to decrease the dynamic inverse error caused by...
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